NGC 2509 is an open cluster in the constellation of Puppis. It was discovered on 3 December 1783 by William Herschel. It was described as "bright, pretty...

NGC 2903 is an isolated barred spiral galaxy in the equatorial constellation of Leo, positioned about 1.5° due south of Lambda Leonis. It was discovered...

black-hole binaries in the low/hard state", Advances in Space Research, 38 (12): 2810–2812, Bibcode:2006AdSpR..38.2810K, doi:10.1016/j.asr.2005.09.045 Titarchuk...

NGC 2800, also known as PGC 26302, is an elliptical galaxy in the constellation Ursa Major. It was discovered February 17, 1831 by William Herschel. Skrutskie...

NGC 2950 is a lenticular galaxy in the northern constellation of Ursa Major, about 50 million light years from the Milky Way and receding with a heliocentric...

NGC 2803, also known as PCG 26181, is an elliptical or lenticular galaxy in the zodiac constellation Cancer. It was discovered March 21, 1784, by William...

Directions. Springer. pp. 119–121. doi:10.1017/S007418090013949X. ISBN 978-90-277-2810-4. Anonymous (June 28, 2007). "The First Parallax Measurements". Astroprof...

Christianity's Global Identity. InterVarsity Press. p. 141. ISBN 978-0-8308-2810-4. Archived from the original on 9 March 2023. Retrieved 21 March 2020. Lindstedt...