• Thumbnail for NGC 2506
    NGC 2506 (also known as Caldwell 54) is a mildly-elongated open cluster of stars in the equatorial constellation of Monoceros, located at a distance of...
    8 KB (589 words) - 00:20, 3 December 2023
  • Thumbnail for NGC 1245
    September 2012). "Deep and wide photometry of the two open clusters NGC 1245 and NGC 2506: CCD observation and physical properties". Monthly Notices of the...
    3 KB (272 words) - 19:20, 26 August 2022
  • Thumbnail for Caldwell catalogue
    objects, such as the Hyades, the Double Cluster (NGC 869 and NGC 884), and the Sculptor Galaxy (NGC 253). The Messier catalogue was actually compiled...
    33 KB (729 words) - 20:18, 11 June 2024
  • 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...
    91 KB (395 words) - 23:30, 5 March 2024
  • Thumbnail for NGC 2204
    "Red giants in open clusters. XII. Six old open clusters NGC 2112, 2204, 2243, 2420, 2506, 2682". Astronomy and Astrophysics. 470 (3): 919–926. Bibcode:2007A&A...
    7 KB (581 words) - 21:11, 10 March 2024
  • Thumbnail for Melotte catalogue
    2020-06-26. "ngc 1857". sim-id. Retrieved 2020-06-26. "ngc 2192". sim-id. Retrieved 2020-06-26. "ngc 2215". sim-id. Retrieved 2020-06-26. "ngc 2243". sim-id...
    37 KB (344 words) - 00:25, 23 May 2023
  • Thumbnail for NGC 1817
    "Comprehensive abundance analysis of red giants in the open clusters NGC 752, 1817, 2360 and 2506", Monthly Notices of the Royal Astronomical Society, 419 (2):...
    6 KB (545 words) - 23:31, 30 August 2022
  • Thumbnail for Collinder catalogue
    Embedded within Messier 24. Associated with Messier 17. Associated with NGC 6820. Embedded within the Iris Nebula. There are some errors in Collinder's...
    60 KB (535 words) - 18:22, 29 February 2024
  • Thumbnail for NGC 2903
    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...
    10 KB (846 words) - 00:20, 3 December 2023
  • Thumbnail for Serpens
    Obscured Star-forming Complex W40". The Astrophysical Journal. 275 (2): 2485–2506. arXiv:1010.5434. Bibcode:2010ApJ...725.2485K. doi:10.1088/0004-637X/725/2/2485...
    118 KB (11,793 words) - 18:14, 5 June 2024