## ### ### # # ### ### # # # # # # # ## # # ### ## # # # ### ## # ### ### ### # # # # # ### # # By Fabien Chereau & al. - www.stellarium.org Stellarium comes with ABSOLUTELY NO WARRANTY. See the COPYING file for details. -------------------------------------------------------------------------------- 1. INTRODUCTION 6. THANKS 2. INSTALLATION INSTRUCTIONS 7. NOTE 3. REQUIREMENT 8. FULL REFERENCES & CREDITS 4. QUICK START 9. LICENSE 5. CONFIGURATION 10. APPENDIX -------------------------------------------------------------------------------- 1. INTRODUCTION -------------------------------------------------------------------------------- Stellarium is a free GPL software which renders realistic skies in real time with OpenGL. It is available for Linux/Unix, Windows and MacOSX. With Stellarium, you really see what you can see with your eyes, binoculars or a small telescope. -------------------------------------------------------------------------------- 2. INSTALLATION INSTRUCTIONS -------------------------------------------------------------------------------- Please see the INSTALL file. -------------------------------------------------------------------------------- 3. REQUIREMENTS -------------------------------------------------------------------------------- Windows or linux/POSIX or CYGWIN or MACOSX environment A 3d OpenGL 2.1+ acceleration card with GLSL1.30 and a good CPU. On Windows, ANGLE can be used if graphics card supports DirectX9+ with PS_3_0. If all else fails, MESA can be used to emulate the graphics card, of course with a massive slowdown. -------------------------------------------------------------------------------- 4. QUICK START -------------------------------------------------------------------------------- Navigation : Use the direction keys or drag with the mouse to move the point of view. Use page up and page down keys or mouse wheel to zoom in and out. Use left mouse button to select an object, right button to select no object and middle mouse button or SPACE to center on the selected object. Zooming on nebulas or planets is very interesting.... Use J, K and L to increment/decrement time speed. Press the F1 key for more help. More help can be found on www.stellarium.org, and in the user guide. -------------------------------------------------------------------------------- 5. CONFIGURATION -------------------------------------------------------------------------------- From version 0.6.0 the most useful configuration options can be set from within the program. You can however change it by hand in the file config.ini in the user data directory. See http://www.stellarium.org/doc/head/fileStructure.html for more details on the location of the user data directory for your OS. -------------------------------------------------------------------------------- 6. THANKS -------------------------------------------------------------------------------- ++ Special thanks to ++ Johan Meuris for his stunning drawings of the constellations. (Johan is now an official member of the project) Johannes Gajdosik for his work on planets computation and projection. (Johannes is now an official member of the project) Matthew Gates for his huge work on the User Guide. (Matthew is now an official member of the project) Nigel Kerr for his MacOSX port. Fumio Yamamoto for his MacOSX packages, patches, support and documentation. Tony Furr for his work on the Graphical User Interface. Rob Spearman (Digitalis Education Solutions, Inc.) for his help and financial support. Valery Lainey for his L1 and MarsSat ephemeris and his prompt an kind help with any question concerning planetary/satellite ephemeris. Norbert Zacharias from USNO for kindly sending a cut of the NOMAD catalogue on 4 DVD, answering NOMAD related questions, and finally copying the entire NOMAD catalogue onto a disk. The Trolltech Qt team for its incredible library. ++ Thanks to ++ Axel Mellinger who gave me the authorisation to use his impressive milky way panorama. The celestia project team from which I borrowed many code parts (GPL license). The libnova team for their planet calculation algorithms (LGPL license). All the sourceforge team for hosting my project. Cedric Delfosse for his precious help on debian port. The GEPI team from the Observatoire Astronomique de Paris for the great Hipparcos catalog. Brad Schaefer for his sky rendering algorithm. Jean-Francois Tremblay for his porting on MacOSX. Vincent Caron for his parser bugfix and Linux compatibility bugfixes. Nick Porcino for his planet function. Tangui Morlier for his help on Linux System. Bill Gray (projectpluto.com) and Mark Huss (mark (at) mhuss.com) for all the astro libraries. Antje Buchholz for her translation help and logistic support :) James Hastings-Trew who gave us the authorisation to use his beautiful and realistic planet textures. And... All the people who sent us mails and bug reports! -------------------------------------------------------------------------------- 7. NOTE -------------------------------------------------------------------------------- This program is free, but if you have nothing to do with your money, just go there and do something useful with it : https://www.greenpeace.com/forms/gpicontr.html -------------------------------------------------------------------------------- 8. FULL REFERENCES & CREDITS -------------------------------------------------------------------------------- 1. Technical Articles 1.1 The tone reproductor class The class mainly performs a fast implementation of the algorithm from the paper [1], with more accurate values from [2]. The blue shift formula is taken from [3] and combined with the Scotopic vision formula from [4]. [1] "Tone Reproduction for Realistic Images", Tumblin and Rushmeier, IEEE Computer Graphics & Application, November 1993 [2] "Tone Reproduction and Physically Based Spectral Rendering", Devlin, Chalmers, Wilkie and Purgathofer in EUROGRAPHICS 2002 [3] "Night Rendering", H. Wann Jensen, S. Premoze, P. Shirley, W.B. Thompson, J.A. Ferwerda, M.M. Stark [4] "A Visibility Matching Tone Reproduction Operator for High Dynamic Range Scenes", G.W. Larson, H. Rushmeier, C. Piatko 1.2 The skylight class The class is a fast implementation of the algorithm from the article "A Practical Analytic Model for Daylight" by A. J. Preetham, Peter Shirley and Brian Smits. 1.3 The skybright class The class is a fast reimplementation of the VISLIMIT.BAS basic source code from Brad Schaefer's article on pages 57-60, May 1998 _Sky & Telescope_, "To the Visual Limits". The basic sources are available on the Sky and Telescope web site. (code "offered as-is and without support.") 1.4 The Delta-T calculations For implementation of calculation routines for Delta-T we used the following sources: [1] Delta-T webpage by Rob van Gent: http://www.staff.science.uu.nl/~gent0113/deltat/deltat.htm [2] "Five Millennium Canon of Solar Eclipses", Espenak and Meeus http://eclipse.gsfc.nasa.gov/SEhelp/deltatpoly2004.html [3] "On the system of astronomical constants", Clemence, G. M., Astronomical Journal, Vol. 53, p. 169 http://adsabs.harvard.edu/abs/1948AJ.....53..169C [4] "The Rotation of the Earth, and the Secular Accelerations of the Sun, Moon and Planets", Spencer Jones, Monthly Notices of the Royal Astronomical Society, 99 (1939), 541-558 http://adsabs.harvard.edu/abs/1939MNRAS..99..541S [5] "Polynomial approximations for the correction delta T E.T.-U.T. in the period 1800-1975", Schmadel, L. D.; Zech, G., Acta Astronomica, vol. 29, no. 1, 1979, p. 101-104. http://adsabs.harvard.edu/abs/1979AcA....29..101S [6] "ELP 2000-85 and the dynamic time-universal time relation", Borkowski, K. M., Astronomy and Astrophysics (ISSN 0004-6361), vol. 205, no. 1-2, Oct. 1988, p. L8-L10. http://adsabs.harvard.edu/abs/1988A&A...205L...8B [7] "Empirical Transformations from U.T. to E.T. for the Period 1800-1988", Schmadel, L. D.; Zech, G., Astronomische Nachrichten 309, 219-221 http://adsabs.harvard.edu/abs/1988AN....309..219S [8] "Historical values of the Earth's clock error DeltaT and the calculation of eclipses", Morrison, L. V.; Stephenson, F. R., Journal for the History of Astronomy (ISSN 0021-8286), Vol. 35, Part 3, No. 120, p. 327 - 336 (2004) http://adsabs.harvard.edu/abs/2004JHA....35..327M [9] "Addendum: Historical values of the Earth's clock error", Morrison, L. V.; Stephenson, F. R., Journal for the History of Astronomy (ISSN 0021-8286), Vol. 36, Part 3, No. 124, p. 339 (2005) http://adsabs.harvard.edu/abs/2005JHA....36..339M [10] "Polynomial approximations to Delta T, 1620-2000 AD", Meeus, J.; Simons, L., Journal of the British Astronomical Association, vol.110, no.6, 323 http://adsabs.harvard.edu/abs/2000JBAA..110..323M [11] "Einstein's Theory of Relativity Confirmed by Ancient Solar Eclipses", Henriksson G., http://adsabs.harvard.edu/abs/2009ASPC..409..166H [12] "Canon of Solar Eclipses" by Mucke & Meeus (1983) [13] "The accelerations of the earth and moon from early astronomical observations", Muller P. M., Stephenson F. R., http://adsabs.harvard.edu/abs/1975grhe.conf..459M [14] "Pre-Telescopic Astronomical Observations", Stephenson F. R., http://adsabs.harvard.edu/abs/1978tfer.conf....5S [15] "Long-term changes in the rotation of the earth - 700 B.C. to A.D. 1980", Stephenson F. R., Morrison L. V., Philosophical Transactions, Series A (ISSN 0080-4614), vol. 313, no. 1524, Nov. 27, 1984, p. 47-70. http://adsabs.harvard.edu/abs/1984RSPTA.313...47S [16] "Long-Term Fluctuations in the Earth's Rotation: 700 BC to AD 1990", Stephenson F. R., Morrison L. V., Philosophical Transactions: Physical Sciences and Engineering, Volume 351, Issue 1695, pp. 165-202 http://adsabs.harvard.edu/abs/1995RSPTA.351..165S [17] "Historical Eclipses and Earth's Rotation" by F. R. Stephenson (1997) http://ebooks.cambridge.org/ebook.jsf?bid=CBO9780511525186 [18] "Astronomical Algorithms" by J. Meeus (2nd ed., 1998) [19] "Astronomy on the Personal Computer" by O. Montenbruck & T. Pfleger (4nd ed., 2000) [20] "Calendrical Calculations" by E. M. Reingold & N. Dershowitz (2nd ed., 2001) [21] DeltaT webpage by V. Reijs: http://www.iol.ie/~geniet/eng/DeltaTeval.htm 1.5 An accurate long-time precession model compatible with P03: J. Vondrak, N. Capitaine, P. Wallace: New precession expressions, valid for long time intervals. Astronomy&Astrophysics 534, A22 (2011); DOI: 10.1051/0004-6361/201117274 1.6 Nutation: Dennis D. McCarthy and Brian J. Lizum: An Abridged Model of the Precession-Nutation of the Celestial Pole. Celestial Mechanics and Dynamical Astronomy 85: 37-49, 2003. This model provides accuracy better than 1 milli-arcsecond in the time 1995-2050. It is applied for years 1500..2500 only. 2. Included source code 2.1 Some computation of the sideral time (sidereal_time.h/c) and pluto orbit contains code from the libnova library (LGPL) by Liam Girdwood. 2.2 The orbit.cpp/h and solve.h files are directly borrowed from Celestia (Chris Laurel). (GPL license) 2.3 Several implementations of IMCCE theories for planet and satellite movement by Johannes Gajdosik (MIT-style license, see the corresponding files for the license text) 2.4 The tesselation algorithms were originally extracted from the glues library version 1.4 Mike Gorchak <mike@malva.ua> (SGI FREE SOFTWARE LICENSE B). 2.5 OBJ loader in the Scenery3D plugin based on glObjViewer (c) 2007 dhpoware 2.6 Parts of the code to work with DE430 and DE431 data files have been taken from Project Pluto (GPL license). 2.7 The SpoutLibrary.dll and header from the SpoutSDK version 2.005 available at http://spout.zeal.co (BSD license). 3. Data 3.1 The Hipparcos star catalog From ESA (European Space Agency) and the Hipparcos mission. ref. ESA, 1997, The Hipparcos and Tycho Catalogues, ESA SP-1200 http://cdsweb.u-strasbg.fr/ftp/cats/I/239 3.2 The solar system data mainly comes from IMCCE and partly from Celestia. 3.3 Polynesian constellations are based on diagrams from the Polynesian Voyaging Society 3.4 Chinese constellations are based on diagrams from the Hong Kong Space Museum 3.5 Egyptian constellations are based on the work of Juan Antonio Belmonte, Instituto de Astrofisica de Canarias 3.6 The Tycho-2 Catalogue of the 2.5 Million Brightest Stars Hog E., Fabricius C., Makarov V.V., Urban S., Corbin T., Wycoff G., Bastian U., Schwekendiek P., Wicenec A. <Astron. Astrophys. 355, L27 (2000)> http://cdsweb.u-strasbg.fr/ftp/cats/I/259 3.7 Naval Observatory Merged Astrometric Dataset (NOMAD) version 1 http://www.nofs.navy.mil/nomad Norbert Zacharias writes: "There are no fees, both UCAC and NOMAD are freely available with the only requirement that the source of the data (U.S. Naval Observatory) and original product name need to be provided with any distribution, as well as a description about any changes made to the data, if at all." The changes made to the data are: -) try to compute visual magnitude and color from the b,v,r values -) compute nr_of_measurements = the number of valid b,v,r values -) throw away or keep stars (depending on magnitude, nr_of_measurements, combination of flags, tycho2 number) -) add all stars from Hipparcos (incl. component solutions), and tycho2+1st supplement -) reorganize the stars in several brigthness levels and triangular zones according to position and magnitude The programs that are used to generate the star files are called "MakeCombinedCatalogue", "ParseHip", "ParseNomad", and can be found in the util subdirectory in source code. The position, magnitudes, and proper motions of the stars coming from NOMAD are unchanged, except for a possible loss of precision, especially in magnitude. When there is no v-magnitude, it is estimated from r or b magnitude. When there is no b- or v- magnitude, the color B-V is estimated from the other magnitudes. Also proper motions of faint stars are neglected at all. 3.8 Stellarium's Catalog of Variable Stars based on General Catalog of Variable Stars (GCVS) version 2013Apr. http://www.sai.msu.su/gcvs/gcvs/ Samus N.N., Durlevich O.V., Kazarovets E V., Kireeva N.N., Pastukhova E.N., Zharova A.V., et al., General Catalogue of Variable Stars (Samus+ 2007-2012) http://cdsarc.u-strasbg.fr/viz-bin/Cat?cat=B%2Fgcvs& 3.9 Consolidated DSO catalog was created from various data: [1] NGC/IC data taken from SIMBAD Astronomical Database http://simbad.u-strasbg.fr [2] Distance to NGC/IC data taken from NED (NASA/IPAC EXTRAGALACTIC DATABASE) http://ned.ipac.caltech.edu [3] Catalogue of HII Regions (Sharpless, 1959) taken from VizieR http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=VII/20 [4] H-α emission regions in Southern Milky Way (Rodgers+, 1960) taken from VizieR http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=VII/216 [5] Catalogue of Reflection Nebulae (Van den Bergh, 1966) taken from VizieR http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=VII/21 [6] Lynds' Catalogue of Dark Nebulae (LDN) (Lynds, 1962) taken from VizieR http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=VII/7A [7] Lynds' Catalogue of Bright Nebulae (Lynds, 1965) taken from VizieR http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=VII/9 [8] Catalog of bright diffuse Galactic nebulae (Cederblad, 1946) taken from VizieR http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=VII/231 [9] Barnard's Catalogue of 349 Dark Objects in the Sky (Barnard, 1927) taken from VizieR http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=VII/220A [10] A Catalogue of Star Clusters shown on Franklin-Adams Chart Plates (Melotte, 1915) taken from NASA ADS http://adsabs.harvard.edu/abs/1915MmRAS..60..175M [11] On Structural Properties of Open Galactic Clusters and their Spatial Distribution. Catalog of Open Galactic Clusters. (Collinder, 1931) taken from NASA ADS http://adsabs.harvard.edu/abs/1931AnLun...2....1C [12] The Collinder Catalog of Open Star Clusters. An Observer’s Checklist. Edited by Thomas Watson. Taken from CloudyNights http://www.cloudynights.com/page/articles/cat/articles/the-collinder-catalog-updated-r2467 3.10 Cross-identification of objects in consolidated DSO catalog was maked with: [1] SIMBAD Astronomical Database http://simbad.u-strasbg.fr [2] Merged catalogue of reflection nebulae (Magakian, 2003) http://vizier.u-strasbg.fr/viz-bin/VizieR-3?-source=J/A+A/399/141 [3] Messier Catalogue was taken from Wikipedia (includes morphological classification and distances) https://en.wikipedia.org/wiki/List_of_Messier_objects [4] Caldwell Catalogue was taken from Wikipedia (includes morphological classification and distances) https://en.wikipedia.org/wiki/Caldwell_catalogue 3.11 Morphological classification and magnitudes (partially) for Melotte catalogue was taken from DeepSkyPedia http://deepskypedia.com/wiki/List:Melotte 4. Graphics 4.1 All graphics are copyrighted by the Stellarium's Team (GPL) except the ones mentioned below : 4.2 The "earthmap" texture was created by NASA (Reto Stockli, NASA Earth Observatory) using data from the MODIS instrument aboard the Terra satellite (Public Domain). See chapter 10.1 for full credits. 4.4 Moon texture map was combined from maps by USGS Astrogeology Research Program, http://astrogeology.usgs.gov (Public Domain, DFSG-free) and by Lunar surface textures from Celestia, based on Clementine data (Public Domain). 4.5a Saturn map and ring textures created by Björn Jónsson: "All the planetary maps available on these pages are publicly available. You do not need a special permission to use them but if you do then please mention their origin in your work [..]" 4.5b Jupiter map created by James Hastings-Trew from Cassini data. "The maps are free to download and use as source material or resource in artwork or rendering (CGI or real time)." 4.5c The Venus, Amalthea, Proteus, Iapetus and Phoebe maps and rings of Uranus and Neptune are from Celestia (http://shatters.net/celestia/) under the GNU General Purpose License, version 2 or any later version: - Venus is from Björn Jónsson and modified by RVS. - Amalthea is a shaded relief map by Phil Stooke, colored by Wm. Robert Johnston. (http://www.johnstonsarchive.net/spaceart/cylmaps.html), and further modified by Jens Meyer and Grant Hutchison. - The Proteus map is from Phil Stooke. - Triton is probably from David Seal's site (see below), modified by Chris Laurel and Grant Hutchison. - Iapetus and Phoebe maps are from dr. Fridger Schrempp (t00fri). 4.5d Mercury map is produced by NASA from Messenger data (https://astrogeology.usgs.gov/search/map/Mercury/Messenger/Global/Mercury_MESSENGER_MDIS_Basemap_BDR_Mosaic_Global_166m) and modified and colored by RVS. License: public domain. 4.5e Europa, Io and Callisto maps are created by John van Vliet from PDS data and modified by RVS. License: cc-by-sa. 4.5f Ganymede map is from USGS and modified by RVS. Public domain. 4.5g Tethys, Dione, Rhea, Enceladus and Mimas maps are created by NASA (CICLOPS team) from Cassini data, colored by RVS. Public domain. 4.5h Hyperion map created by John van Vliet from PDS data, modified by RVS. License: cc-by-sa. 4.5i Triton: Image selection, radiometric calibration, geographic registration and photometric correction, and final mosaic assembly were performed by Dr. Paul Schenk at the Lunar and Planetary Institute, Houston, Texas. Image data from Voyager 2 (NASA, JPL). Original texture has "white spots", which was filled by Dizel777 (http://spaceengine.org/forum/19-563-25069-16-1409101585). 4.4j Pluto map is produced by NASA from New Horizons data and colored by RVS. (Courtesy NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute - http://photojournal.jpl.nasa.gov/catalog/PIA19858) 4.4k Charon map is produced by NASA from New Horizons data and colored by RVS. (Courtesy NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute - http://photojournal.jpl.nasa.gov/catalog/PIA19866) 4.5l All other planet maps from David Seal's site: http://maps.jpl.nasa.gov/ see license in section 10.2 4.6 The fullsky milky way panorama is created by Axel Mellinger, University of Potsdam, Germany. Further information and more pictures available from http://home.arcor-online.de/axel.mellinger/ License: permission given to "Modify and redistribute this image if proper credit to the original image is given." 4.7 All messiers nebula pictures except those mentioned below from the Grasslands Observatory : "Images courtesy of Tim Hunter and James McGaha, Grasslands Observatory at http://www.3towers.com." License: permission given to "use the image freely" (including right to modify and redistribute) "as long as it is credited." 4.8 M31, and the Pleiades pictures come from Herm Perez : http://home.att.net/~hermperez/default.htm License: "Feel free to use these images, if you use them in a commercial setting please attribute the source." 4.9 Images of M8, M33, NGC253, NGC1499, NGC2244 from Jean-Pierre Bousquet 4.10 Images of M1, M15, M16, M27, M42, M57, M97, NGC6946 from Stephane Dumont 4.11 Images of M17, M44, NGC856, NGC884 from Maxime Spano 4.12 Constellation art, GUI buttons, logo created by Johan Meuris (Jomejome) (jomejome at users.sourceforge.net) http://www.johanmeuris.eu/ License: released under the Free Art License (http://artlibre.org/licence.php/lalgb.html) Icon created by Johan Meuris License: Creative Commons Attribution-ShareAlike 3.0 Unported 4.13 The "earth-clouds" texture includes imagery owned by NASA. See NASA's Visible Earth project at http://visibleearth.nasa.gov/ License: 1. The imagery is free of licensing fees 2. NASA requires that they be provided a credit as the owners of the imagery The cloud texturing was taken from Celestia (GPL), http://www.shatters.net/celestia/ 4.14 The folder icon derived from the Tango Desktop Project, used under the terms of the Creative Commons Attribution Share-Alike license. 4.15 Images of NGC281, NGC5139, NGC6543, NGC6960, NGC7023, NGC7317, NGC7319, NGC7320 from Andrey Kuznetsov, Kepler Observatory http://kepler-observatorium.ru License: Creative Commons Attribution 3.0 Unported 4.16 Images of NGC891, NGC1333, NGC2903, NGC3185, NGC3187, NGC3189, NGC3190, NGC3193, NGC3718, NGC3729, NGC4490, NGC5981, NGC5982, NGC5985, NGC7129 from Oleg Bryzgalov http://olegbr.astroclub.kiev.ua/ License: Creative Commons Attribution 3.0 Unported 4.17 Image of eta Carinae from Georg Zotti http://www.waa.at/ License: Creative Commons Attribution 3.0 Unported 4.18 Images of IC1805, IC1848, NGC6888 from Steve Tuttle http://www.stuttle1.com/ 4.19 Images of IC4628, M20, M21, M47, NGC2467, IC2948, NGC3324, NGC3293, NGC7590, RCW158 from Trevor Gerdes http://www.sarcasmogerdes.com/ 4.20 Images of IC2118, NGC1532 from users of Ice In Space http://www.iceinspace.com.au/ 4.21 Image of IC5146 from James A Weier 4.22 Images of SMC, LMC (Magellanic Clouds) and rho Oph from Albert Van Donkelaar 4.23 Images of NGC55, NGC300, NGC1365, NGC3628, NGC4945, NGC5128, NGC6726, NGC6744, NGC6752, NGC6822, NGC7293, NGC2070 from Philip Montgomery http://www.kenthurst.bigpondhosting.com/ 4.24 The Vesta and Ceres map was taken from USGS website https://astrogeology.usgs.gov/ and colored by RVS. License: public domain. 4.25 Images of NGC7318, NGC7331, M3, M13, M51, M63, M64, M74, M78, M81, M82, M96, M101, M105, Barnard 22, Barnard 142, Barnard 173, IC405, IC443, NGC1514, NGC1961, NGC2371, NGC2403, NGC246, NGC2841, NGC3310, NGC3938, NGC4559, NGC7008, NGC7380, NGC7479, NGC7635, Sh2-101 from Peter Vasey, Plover Hill Observatory http://www.madpc.co.uk/~peterv/ 4.26 Image of IC434 from Marc Aragnou 4.27 Image of solar corona from eclipse 2008-08-01 by Georg Zotti 4.28 Images of IC59, IC63, IC410, NGC2359, Sadr region from Carole Pope https://sites.google.com/site/caroleastroimaging/ 4.29 Images of NGC3690, NGC5257, NGC6050, IC883, UGC8335 and UGC9618 from NASA, ESA, the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration License: public domain; http://hubblesite.org/copyright/ 4.30 Images of NGC40, NGC4631, NGC4627, NGC4656, NGC4657 from Steven Bellavia -------------------------------------------------------------------------------- 9. LICENSE -------------------------------------------------------------------------------- Copyright (C) 2004-2016 Fabien Chereau et al. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA. See the COPYING file for more information regarding the GNU General Public License. -------------------------------------------------------------------------------- 10 APPENDIX : -------------------------------------------------------------------------------- 10.1 Full credits for image 4.2 : Author: Reto Stockli, NASA Earth Observatory, rstockli (at) climate.gsfc.nasa.gov Address of correspondence: Reto Stockli ETH/IAC (NFS Klima) & NASA/GSFC Code 913 (SSAI) University Irchel Building 25 Room J53 Winterthurerstrasse 190 8057 Zurich, Switzerland Phone: +41 (0)1 635 5209 Fax: +41 (0)1 362 5197 Email: rstockli (at) climate.gsfc.nasa.gov http://earthobservatory.nasa.gov http://www.iac.ethz.ch/staff/stockli Supervisors: Fritz Hasler and David Herring, NASA/Goddard Space Flight Center Funding: This project was realized under the SSAI subcontract 2101-01-027 (NAS5-01070) License : "Any and all materials published on the Earth Observatory are freely available for re-publication or re-use, except where copyright is indicated." 10.2 License for the JPL planets images (http://www.jpl.nasa.gov/images/policy/index.cfm) --- Unless otherwise noted, images and video on JPL public web sites (public sites ending with a jpl.nasa.gov address) may be used for any purpose without prior permission, subject to the special cases noted below. Publishers who wish to have authorization may print this page and retain it for their records; JPL does not issue image permissions on an image by image basis. By electing to download the material from this web site the user agrees: 1. that Caltech makes no representations or warranties with respect to ownership of copyrights in the images, and does not represent others who may claim to be authors or owners of copyright of any of the images, and makes no warranties as to the quality of the images. Caltech shall not be responsible for any loss or expenses resulting from the use of the images, and you release and hold Caltech harmless from all liability arising from such use. 2. to use a credit line in connection with images. Unless otherwise noted in the caption information for an image, the credit line should be "Courtesy NASA/JPL-Caltech." 3. that the endorsement of any product or service by Caltech, JPL or NASA must not be claimed or implied. Special Cases: * Prior written approval must be obtained to use the NASA insignia logo (the blue "meatball" insignia), the NASA logotype (the red "worm" logo) and the NASA seal. These images may not be used by persons who are not NASA employees or on products (including Web pages) that are not NASA sponsored. In addition, no image may be used to explicitly or implicitly suggest endorsement by NASA, JPL or Caltech of commercial goods or services. Requests to use NASA logos may be directed to Bert Ulrich, Public Services Division, NASA Headquarters, Code POS, Washington, DC 20546, telephone (202) 358-1713, fax (202) 358-4331, email bert.ulrich@hq.nasa.gov. * Prior written approval must be obtained to use the JPL logo (stylized JPL letters in red or other colors). Requests to use the JPL logo may be directed to the Television/Imaging Team Leader, Media Relations Office, Mail Stop 186-120, Jet Propulsion Laboratory, Pasadena CA 91109, telephone (818) 354-5011, fax (818) 354-4537. * If an image includes an identifiable person, using the image for commercial purposes may infringe that person's right of privacy or publicity, and permission should be obtained from the person. NASA and JPL generally do not permit likenesses of current employees to appear on commercial products. For more information, consult the NASA and JPL points of contact listed above. * JPL/Caltech contractors and vendors who wish to use JPL images in advertising or public relation materials should direct requests to the Television/Imaging Team Leader, Media Relations Office, Mail Stop 186-120, Jet Propulsion Laboratory, Pasadena CA 91109, telephone (818) 354-5011, fax (818) 354-4537. * Some image and video materials on JPL public web sites are owned by organizations other than JPL or NASA. These owners have agreed to make their images and video available for journalistic, educational and personal uses, but restrictions are placed on commercial uses. To obtain permission for commercial use, contact the copyright owner listed in each image caption. Ownership of images and video by parties other than JPL and NASA is noted in the caption material with each image. ---
fmeynadier/stellarium
Stellarium is a free GPL software which renders realistic skies in real time with OpenGL. It is available for Linux/Unix, Windows and MacOSX. With Stellarium, you really see what you can see with your eyes, binoculars or a small telescope.
C++GPL-2.0