• Thumbnail for NGC 4993
    NGC 4993 (also catalogued as NGC 4994 in the New General Catalogue) is a lenticular galaxy located about 140 million light-years away in the constellation...
    18 KB (1,601 words) - 22:35, 5 August 2024
  • Thumbnail for GW170817
    detectors on 17 August 2017, originating from the shell elliptical galaxy NGC 4993, about 140 million light years away. The signal was produced by the last...
    102 KB (5,884 words) - 22:42, 20 November 2024
  • collaborated to detect the electromagnetic counterpart, a kilonova in the galaxy NGC 4993, 40 megaparsecs away, emitting a short gamma ray burst (GRB 170817A) seconds...
    106 KB (12,668 words) - 03:05, 12 November 2024
  • Thumbnail for Hydra (constellation)
    is of fairly uniform brightness throughout. Another notable galaxy is NGC 4993, an elliptical galaxy which was the source of events GW170817, GRB 170817A...
    17 KB (1,848 words) - 16:44, 12 November 2024
  • Thumbnail for Kilonova
    electromagnetic spectrum (AT 2017gfo) located in a relatively nearby galaxy, NGC 4993. Observations of AT 2017gfo confirmed that it was the first conclusive...
    22 KB (2,196 words) - 14:31, 24 September 2024
  • Thumbnail for Neutron star merger
    gravitational wave associated with the merger of two neutron stars in NGC 4993, an elliptical galaxy in the constellation Hydra about 140 million light...
    22 KB (2,353 words) - 01:10, 21 November 2024
  • (2018). "A detached stellar-mass black hole candidate in the globular cluster NGC 3201". Monthly Notices of the Royal Astronomical Society: Letters. 475 (1):...
    24 KB (3,259 words) - 23:22, 29 October 2024
  • Thumbnail for Dark Energy Survey
    DES concluded that the optical counterpart they have identified near NGC 4993 is associated with GW170817. This discovery ushers in the era of multi-messenger...
    50 KB (5,469 words) - 04:27, 25 July 2024
  • optical telescopes. August 2017: A neutron star collision in the galaxy NGC 4993 produced the gravitational wave signal GW170817, which was observed by...
    17 KB (1,722 words) - 22:30, 7 September 2024
  • Thumbnail for List of gravitational wave observations
    observatories; first polarization measurement GW170817 12:41:04 2017-10-16 16; NGC 4993 33.0+0.0 −2.1 40±10 ≥ 0.04 1.186+0.001 −0.001 0.00+0.02 −0.01 NS 1.46+0...
    224 KB (6,281 words) - 20:23, 22 November 2024
  • In August 2017, a neutron star collision that occurred in the galaxy NGC 4993 produced the gravitational wave signal GW170817, which was observed by...
    45 KB (5,788 words) - 22:52, 22 November 2024
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    3 KB (334 words) - 17:32, 29 October 2024
  • 83. Positioned just 1.8° to the south-southwest is the planetary nebula NGC 3242. Mu Hydrae has an annual parallax shift of 13.93 mas, which yields a...
    6 KB (386 words) - 07:21, 23 August 2024
  • Thumbnail for NGC 4701
    NGC 4701 is an unbarred spiral galaxy in the New General Catalogue, located in the constellation Virgo. It was discovered by the English astronomer William...
    3 KB (243 words) - 18:24, 18 January 2024
  • Thumbnail for Eta Muscae
    44±2 km/s Other designations η Mus, CPD−67° 2224, FK5 493, HD 114911, HIP 64661, HR 4993, SAO 252224, WDS J13152-6754A Database references SIMBAD data...
    10 KB (677 words) - 00:16, 23 August 2024
  • Thumbnail for ESO 510-G13
    3312 3313 3314 3315 3316 3336 3369 3393 3402 3464 3585 3621 3717 3923 4980 4993 5078 5101 5135 5260 5264 5495 Other AM 1316-241 Arp 7 ESO 510-G13 GAMA202627...
    2 KB (133 words) - 09:55, 14 January 2024
  • Thumbnail for NGC 4614
    NGC 4614 is a barred lenticular galaxy in the New General Catalog. It is located in the constellation of Coma Berenices. It was discovered in 1864 by...
    3 KB (211 words) - 18:24, 18 January 2024
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    8 KB (642 words) - 22:59, 4 August 2024
  • 3312 3313 3314 3315 3316 3336 3369 3393 3402 3464 3585 3621 3717 3923 4980 4993 5078 5101 5135 5260 5264 5495 Other AM 1316-241 Arp 7 ESO 510-G13 GAMA202627...
    12 KB (989 words) - 03:17, 15 November 2024
  • 3312 3313 3314 3315 3316 3336 3369 3393 3402 3464 3585 3621 3717 3923 4980 4993 5078 5101 5135 5260 5264 5495 Other AM 1316-241 Arp 7 ESO 510-G13 GAMA202627...
    12 KB (996 words) - 03:17, 15 November 2024
  • Thumbnail for Abell 33
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    2 KB (196 words) - 00:32, 11 May 2024
  • Thumbnail for AM 1316-241
    3312 3313 3314 3315 3316 3336 3369 3393 3402 3464 3585 3621 3717 3923 4980 4993 5078 5101 5135 5260 5264 5495 Other AM 1316-241 Arp 7 ESO 510-G13 GAMA202627...
    3 KB (129 words) - 21:37, 9 May 2024
  • 3312 3313 3314 3315 3316 3336 3369 3393 3402 3464 3585 3621 3717 3923 4980 4993 5078 5101 5135 5260 5264 5495 Other AM 1316-241 Arp 7 ESO 510-G13 GAMA202627...
    8 KB (518 words) - 01:50, 23 August 2024
  • 3312 3313 3314 3315 3316 3336 3369 3393 3402 3464 3585 3621 3717 3923 4980 4993 5078 5101 5135 5260 5264 5495 Other AM 1316-241 Arp 7 ESO 510-G13 GAMA202627...
    6 KB (421 words) - 07:51, 26 June 2021
  • Thumbnail for Rho Hydrae
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    11 KB (869 words) - 03:20, 15 November 2024
  • 3312 3313 3314 3315 3316 3336 3369 3393 3402 3464 3585 3621 3717 3923 4980 4993 5078 5101 5135 5260 5264 5495 Other AM 1316-241 Arp 7 ESO 510-G13 GAMA202627...
    7 KB (483 words) - 13:53, 18 July 2024
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    9 KB (677 words) - 22:16, 18 July 2024
  • Thumbnail for Chi2 Hydrae
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    10 KB (720 words) - 12:08, 16 November 2024
  • 3312 3313 3314 3315 3316 3336 3369 3393 3402 3464 3585 3621 3717 3923 4980 4993 5078 5101 5135 5260 5264 5495 Other AM 1316-241 Arp 7 ESO 510-G13 GAMA202627...
    8 KB (577 words) - 17:18, 18 August 2024
  • Thumbnail for MRC 1138-262
    3312 3313 3314 3315 3316 3336 3369 3393 3402 3464 3585 3621 3717 3923 4980 4993 5078 5101 5135 5260 5264 5495 Other AM 1316-241 Arp 7 ESO 510-G13 GAMA202627...
    9 KB (775 words) - 09:40, 27 October 2023