• Thumbnail for NGC 6939
    NGC 6939 is an open cluster in the constellation Cepheus. It was discovered by William Herschel in 1798. The cluster lies 2/3° northwest from the spiral...
    5 KB (560 words) - 08:11, 23 August 2024
  • Thumbnail for NGC 2800
    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...
    3 KB (190 words) - 20:24, 12 August 2023
  • Thumbnail for Galaxy rotation curve
    proposed, showing that the rotation curves for the Milky Way, NGC 3031, NGC 3198 and NGC 7331 are consistent with the mass density distributions of the...
    33 KB (4,179 words) - 09:47, 12 September 2024
  • Thumbnail for NGC 2509
    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...
    3 KB (286 words) - 21:06, 28 June 2023
  • Thumbnail for NGC 2803
    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...
    3 KB (199 words) - 17:51, 18 January 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) - 07:35, 23 August 2024
  • Thumbnail for Cygnus (constellation)
    Letters B. 160 (1–3): 181. Bibcode:1985PhLB..160..181B. doi:10.1016/0370-2693(85)91489-3. MacKeown, P. K.; Weekes, T. C. (1985). "Cosmic Rays from Cygnus...
    51 KB (5,864 words) - 19:05, 16 July 2024
  • Thumbnail for Black hole
    hole candidates include the Andromeda Galaxy, M32, M87, NGC 3115, NGC 3377, NGC 4258, NGC 4889, NGC 1277, OJ 287, APM 08279+5255 and the Sombrero Galaxy...
    164 KB (18,492 words) - 11:40, 15 September 2024
  • Thumbnail for Palomar globular clusters
    Palomar 2". Monthly Notices of the Royal Astronomical Society. 493 (2): 2688–2693. doi:10.1093/mnras/staa510. hdl:10183/212352. ISSN 0035-8711. Catelan, M...
    11 KB (1,130 words) - 15:16, 18 July 2024
  • Thumbnail for NGC 2950
    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...
    9 KB (501 words) - 13:39, 6 September 2024
  • Thumbnail for Neutrino
    Letters B. 201 (3): 353–354. Bibcode:1988PhLB..201..353S. doi:10.1016/0370-2693(88)91154-9. Cohen, Andrew; Glashow L., Sheldon (28 October 2011). "New constraints...
    141 KB (14,034 words) - 01:15, 22 August 2024
  • Thumbnail for Dark matter
    in 1940 Jan Oort discovered and wrote about the large non-visible halo of NGC 3115. Early radio astronomy observations, performed by Seth Shostak, later...
    135 KB (14,705 words) - 03:28, 16 September 2024
  • Letters B. 94 (2): 266–268. Bibcode:1980PhLB...94..266L. doi:10.1016/0370-2693(80)90873-4.. Tolliver, David E.; Kyrala, George A.; Wing, William H. (1979-12-03)...
    30 KB (2,984 words) - 16:01, 25 August 2024
  • neutron stars and black holes. The pair are located in the globular cluster NGC 1851. Two insect-like robots, a mini-bug and a water strider, are reported...
    188 KB (17,527 words) - 22:10, 14 September 2024
  • Thumbnail for Delta Canis Majoris
    above the horizon at the latitude of the United Kingdom. The open cluster NGC 2354 is located only 1.3 degrees east of Delta Canis Majoris. As with the...
    20 KB (1,845 words) - 13:51, 7 September 2024
  • Thumbnail for List of stars that have unusual dimming periods
    (PDF). Monthly Notices of the Royal Astronomical Society. 485 (2): 2681–2693. arXiv:1902.08152. Bibcode:2019MNRAS.485.2681R. doi:10.1093/mnras/stz537...
    25 KB (1,701 words) - 19:10, 19 August 2024
  • Thumbnail for Universe
    Lett. B. 175 (4): 395–400. Bibcode:1986PhLB..175..395L. doi:10.1016/0370-2693(86)90611-8. Archived (PDF) from the original on November 27, 2013. Retrieved...
    158 KB (16,454 words) - 12:49, 14 September 2024
  • Thumbnail for Dark energy
    arXiv:astro-ph/9908168. Bibcode:2002PhLB..545...23C. doi:10.1016/S0370-2693(02)02589-3. S2CID 9820570. Krishnan, Chethan; Mohayaee, Roya; Colgáin, Eoin...
    86 KB (9,657 words) - 00:54, 2 September 2024
  • Thumbnail for EPIC 204376071
    (PDF). Monthly Notices of the Royal Astronomical Society. 485 (2): 2681–2693. arXiv:1902.08152. Bibcode:2019MNRAS.485.2681R. doi:10.1093/mnras/stz537...
    7 KB (435 words) - 19:44, 17 July 2024
  • Thumbnail for Accelerating expansion of the universe
    arXiv:astro-ph/9908168. Bibcode:2002PhLB..545...23C. doi:10.1016/S0370-2693(02)02589-3. S2CID 9820570. University of Oxford (5 December 2018). "Bringing...
    39 KB (4,825 words) - 17:14, 23 August 2024
  • 125612 d 7.176 3007.886 4.208 0.2813 2009 HD 72659 b 3.301 3177.490 4.163 0.2693 2002 HD 154345 b 0.947 3339.667 4.195 0.0439 2006 HIP 70849 b 5.782 3387...
    36 KB (286 words) - 20:08, 22 December 2023
  • 204376071". Monthly Notices of the Royal Astronomical Society. 485 (2): 2681–2693. arXiv:1902.08152. Bibcode:2019MNRAS.485.2681R. doi:10.1093/mnras/stz537...
    257 KB (24,663 words) - 20:48, 2 August 2024
  • Thumbnail for Neutrino astronomy
    Bibcode:2010PhLB..687..299B. doi:10.1016/j.physletb.2010.03.051. ISSN 0370-2693. Donini, Andrea; Palomares-Ruiz, Sergio; Salvado, Jordi (January 2019). "Neutrino...
    38 KB (4,743 words) - 04:30, 12 August 2024