• Thumbnail for List of most massive black holes
    Group galaxies M31 and M32, and a few galaxies beyond the Local Group, e.g. NGC 4395. In these galaxies, the mean square (or root mean square) velocities...
    76 KB (5,741 words) - 20:54, 8 August 2024
  • Thumbnail for NGC 4036
    NGC 4036 is the New General Catalogue identifier for a lenticular galaxy in the northern circumpolar constellation of Ursa Major. In the Carnegie Atlas...
    11 KB (910 words) - 23:58, 16 July 2024
  • Thumbnail for NGC 4041
    NGC 4041 is the New General Catalogue identifier for a spiral galaxy in the northern circumpolar constellation of Ursa Major. It is located an estimated...
    11 KB (869 words) - 23:59, 16 July 2024
  • Thumbnail for Helium hydride ion
    Physics B. 40 (12): 2471–2480. Bibcode:2007JPhB...40.2471F. doi:10.1088/0953-4075/40/12/020. S2CID 120284828. Mannone, F., ed. (1993). "Tritium Materials Interactions"...
    30 KB (2,984 words) - 07:29, 20 July 2024
  • Thumbnail for NGC 3309
    NGC 3309 is a giant elliptical galaxy located about 200 million light-years away in the constellation Hydra. NGC 3309 was discovered by astronomer John...
    7 KB (573 words) - 00:44, 2 June 2023
  • Thumbnail for History of spectroscopy
    Spectrum from 1.5 to 2000 Å". J. Phys. B. 43 (23): 232001. doi:10.1088/0953-4075/43/23/232001. S2CID 122976941. Fawcett, B.C. (1981). "Classification of the...
    50 KB (5,598 words) - 06:51, 20 May 2024
  • Thumbnail for Rydberg atom
    Physics B. 28 (24): 5309–5315. Bibcode:1995JPhB...28.5309H. doi:10.1088/0953-4075/28/24/015. S2CID 250862926. M. Courtney, et al. (1995). "Classical, semiclassical...
    51 KB (5,769 words) - 19:59, 11 July 2024
  • Thumbnail for White dwarf
    Small Asteroids". The Astronomical Journal. 135 (5): 1785–1792. arXiv:0802.4075. Bibcode:2008AJ....135.1785J. doi:10.1088/0004-6256/135/5/1785. ISSN 0004-6256...
    163 KB (18,597 words) - 05:12, 17 July 2024
  • Thumbnail for Omicron Virginis
    3976A 3979 4006 4012 4029 4030 4043 4044 4045 4045A 4058 4063 4067 4073 4075 4077 4079 4082 4083 4107 4116 4119 4123 4129 4139 4164 4165 4168 4176 4178...
    7 KB (494 words) - 14:18, 15 April 2023
  • Thumbnail for Theta Virginis
    3976A 3979 4006 4012 4029 4030 4043 4044 4045 4045A 4058 4063 4067 4073 4075 4077 4079 4082 4083 4107 4116 4119 4123 4129 4139 4164 4165 4168 4176 4178...
    8 KB (579 words) - 13:30, 26 November 2023