II Program. The catalogue contains 400 objects. All objects are from the NGC. All objects are visible in mid northern latitudes, since they were all observed...

Embedded within Messier 24. Associated with Messier 17. Associated with NGC 6820. Embedded within the Iris Nebula. There are some errors in Collinder's...

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...

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...

appearance. NGC 3223 is the brightest and largest member of a galaxy group named after it. There are 16 members including NGC 3224, NGC 3258, NGC 3268, NGC 3289...

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...

Systems surrounding the Hubble Deep Field". The Astronomical Journal. 119 (6): 2571–2582. arXiv:astro-ph/0003203. Bibcode:2000AJ....119.2571V. doi:10.1086/301404...

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...

Abell 2390 and Abell 2764, star-forming region Messier 78, spiral galaxy NGC 6744, and the Dorado group of galaxies. These early observations demonstrate...

Science. 27 (7). Wiley: 660–670. Bibcode:2012JQS....27..660G. doi:10.1002/jqs.2571. ISSN 0267-8179. S2CID 131415717. "Warming ocean could start big shift of...