NGC 3087

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NGC 3087
NGC 3087 DSS.jpg
The elliptical galaxy NGC 3087
Observation data (J2000 epoch)
Constellation Antlia
Right ascension 09h 59m 08.6615s [1]
Declination −34° 13′ 30.838″ [1]
Redshift 0.008913 [1]
Heliocentric radial velocity 2672 ± 21 km/s [1]
Distance 143.7 ± 10.2  Mly (44.05 ± 3.13  Mpc) [1]
Group or cluster NGC 3038 Group (LGG 184)
Apparent magnitude  (V)10.5 [1]
Characteristics
Type cD: [1]
Size~114,100  ly (34.99  kpc) (estimated) [1]
Apparent size  (V)2.0′ × 2.0′ [1]
Other designations
2MASX J09590864-3413307, MCG -06-22-005, PGC 28845, ESO 374- G 015 [1]

NGC 3087 is an elliptical galaxy in the constellation of Antlia. Its velocity with respect to the cosmic microwave background is 2987 ± 30 km/s, which corresponds to a Hubble distance of 44.05 ± 3.13 Mpc (∼144 million light-years). [1] It was discovered by British astronomer John Herschel on 2 February 1835. [2]

Contents

One supernova has been observed in NGC 3087: SN 2023mdv (type Ia, mag 18.3) was discovered by ATLAS on 29 June 2023. [3]

NGC 3038 Group

According to A. M. Garcia, NGC 3087 is part of the six member NGC 3038 Group (also known as LGG 184). The other five galaxies are NGC 3038, NGC 3120, IC 2532, ESO 373–21, and ESO 373–26. [4]

See also

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<span class="mw-page-title-main">NGC 1233</span> Galaxy in the constellation Perseus

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<span class="mw-page-title-main">NGC 1493</span> Galaxy in the constellation Horologium

NGC 1493 is a barred spiral galaxy in the constellation of Horologium. Its velocity with respect to the cosmic microwave background is 1004 ± 4 km/s, which corresponds to a Hubble distance of 48.3 ± 3.4 Mly (14.81 ± 1.04 Mpc). In addition, six non redshift measurements give a distance of 35.38 ± 1.71 Mly (10.848 ± 0.525 Mpc). The galaxy was discovered by Scottish astronomer James Dunlop on 2 September 1826.

References

  1. 1 2 3 4 5 6 7 8 9 10 11 "Results for object NGC 3087". NASA/IPAC Extragalactic Database. NASA and Caltech . Retrieved 6 August 2024.
  2. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 3087". Celestial Atlas. Retrieved 16 December 2024.
  3. ↑ "SN 2023mdv". Transient Name Server. IAU . Retrieved 16 December 2024.
  4. ↑ Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series. 100: 47. Bibcode:1993A&AS..100...47G.
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