Astronomy Resources

One can also download the software from the Stellarium website.

"Since its launch in 2013, this site has been developed and maintained by Iacopo Sassarini, as a personal project to bring together interests in astronomy and coding."

SkyChart is "software to draw chart of the night sky for the amateur astronomer from a bunch of stars and nebulae catalogs. This software is part of a full suite for astronomical observation."

"Founded by Dominic Ford in 2012, it has grown to cover planets, asteroids, comets, deep sky objects, as well as satellites in low-Earth orbit. The site now includes an extensive searchable catalogue of astronomical events spanning the years from 1950 to 2300."

"Developed and maintained by Chris Peat, Heavens-Above GmbH."

"Aladin is an interactive sky atlas allowing the user to visualize digitized astronomical images or full surveys, superimpose entries from astronomical catalogues or databases, and interactively access related data and information from the Simbad database, the VizieR service and other archives for all known astronomical objects in the field."

The list appears to be from about 2019. It has links to free and commercial sources of software.

"The Mag-7 Star Atlas plots stars down to Magnitude 7.25, with double / multiple stars indicated by a thin horizontal bar. Plotted DSO's (Deep Sky Objects) include all objects on the Messier list, the RASC's finest NGC list, and the Herschell 400 list --- more than 550 DSO's in total."

146 charts. "This printable star atlas pdf is an excellent resource to have at the telescope for navigation, particularly in dense areas of the sky. It is an amazing deep sky star atlas and dso sky atlas. While still available online from the author, I mirror this because the original website has not been updated in quite some time and I would hate to lose such an amazing set of star charts pdf as the Taki’s 8.5 Magnitude Star Atlas.Written by Toshimi Taki" Last updated 2008.

"This is a mirror of the TriAtlas project by José Ramón Torres and Casey Skelton."

"Free, printable sky maps in PDF format, designed for a practical field use by deep sky observers. "Deep Sky Hunter" is a large, comprehensive atlas (A3, 110 maps)."

Over 6,000 "charts plot approximately 117k bright stars, 600 million field stars, 2.4 million galaxies, 277k variable stars, 110k multiple stars, 168k quasars, 8955 galaxy groups, 5250 galaxy clusters, 5004 dark nebulae, 2411 planetary nebulae, 1249 bright nebulae, 2167 open clusters, 159 reflection nebulae and 157 globular clusters. The celestial sphere is divided into 6787 charts, each covering 3 degrees of declination at a map scale of 11.74" per mm."