NGC 999 is an intermediate spiral galaxy located in the constellation Andromeda about 195 million light-years from the Milky Way.[3] It was discovered by the French astronomer Edouard Stephan in 1871.[5]
^ abBrown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051.
^ abcd"NGC 999". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-06-03.
^ abCrook, Aidan C.; Huchra, John P.; Martimbeau, Nathalie; Masters, Karen L.; Jarrett, Tom; Macri, Lucas M. (2007). "Groups of Galaxies in the Two Micron All Sky Redshift Survey". The Astrophysical Journal. 655 (2): 790–813. arXiv:astro-ph/0610732. Bibcode:2007ApJ...655..790C. doi:10.1086/510201. S2CID 11672751.
^"Results for object NGC 0999 (NGC 999)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2020-06-03.
^"Revised NGC Data for NGC 999". spider.seds.org. Retrieved 2020-02-10.
NGC999 is an intermediate spiral galaxy located in the constellation Andromeda about 195 million light-years from the Milky Way. It was discovered by...
system. Double star Binary star List of NGC objects (1–999) Seligman, Courtney (March 2010). "NGC Objects: NGC 1 - 49". Celestial Atlas. Retrieved 27 October...
"Caught in Formation: The Nuclear-Cluster-to-Be in NGC 2139", The Astrophysical Journal, 688 (2): 990–999, arXiv:0808.1321, Bibcode:2008ApJ...688..990A, doi:10...
NGC 950 - 999". cseligman.com. Retrieved 2021-02-17. "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2020-02-12. "Revised NGC Data for NGC...
cluster. "NGC 956". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 31 July 2017. "New General Catalog Objects: NGC 950 - 999". cseligman...
Numismatic Guaranty Company (NGC) is an international third-party coin grading and certification service based in Sarasota, Florida. It has certified...
edu/cgi-bin/nph-objsearch?objname=NGC+0997&img_stamp=YES&list_limit=9&extend=no Seligman, Courtney. "New General Catalogue objects: NGC 950 - 999". cseligman.com. Retrieved...
Messier 84 or M84, also known as NGC 4374, is a giant elliptical or lenticular galaxy in the constellation Virgo. Charles Messier discovered the object...
Messier 92 (also known as M92, M 92, or NGC 6341) is a globular cluster of stars in the northern constellation of Hercules. It was discovered by Johann...
cluster in the constellation Ophiuchus. The New General Catalogue object NGC 9, a spiral galaxy in the constellation Pegasus. The purity of chemicals...
into series (e.g. after ZAA-999 has been reached, ZAB-101) the middle letter is the one being replaced (e.g. after NAI-999 series has been exhausted, NBI-101...
NGC 613 is a barred spiral galaxy located 67 million light years away in the southern constellation of Sculptor. This galaxy was discovered in 1798 by...
silver coins have a smooth edge inscribed with the coin specifications: .999 FINE SILVER 5.0 OUNCE. There are three main differences between the uncirculated...