Astronomy:NGC 39

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NGC 39
NGC 39
SDSS image of NGC 39
Observation data (J2000 epoch)
ConstellationAndromeda
Right ascension 00h 12m 18.8525s[1]
Declination+31° 03′ 39.946″[1]
Redshift0.016201[1]
Helio radial velocity4857 ± 11 km/s[1]
Distance217.9 ± 15.3 Mly (66.80 ± 4.69 Mpc)[1]
Group or clusterNGC 7831 Group (LGG 1)
Apparent magnitude (V)13.92[1]
Characteristics
TypeSA(rs)c[1]
Apparent size (V)1.2 × 1.0[1]
Other designations
IRAS F00097+3047, UGC 114, MCG+05-01-052, PGC 852[1]

NGC 39 is an unbarred spiral galaxy in the constellation Andromeda. Its velocity with respect to the cosmic microwave background is 4529 ± 25 km/s, which corresponds to a Hubble distance of 217.9 ± 15.3 Mly (66.80 ± 4.69 Mpc).[1] It was discovered by German-British astronomer William Herschel on 2 November 1790.[2]

NGC 7831 Group

According to A.M. Garcia, NGC 39 is a member of the NGC 7831 group (also known as LGG 1), which contains at least 18 galaxies, including NGC 13, NGC 19, NGC 20, NGC 21, NGC 43, NGC 7805, NGC 7806, NGC 7819, and NGC 7836.[3]

Supernova

One supernova has been observed in NGC 39: SN 2024rbc (type Ib, mag. 20.5443) was discovered by Zwicky Transient Facility on 3 August 2024.[4]

See also

References

  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 "Results for object NGC 0039 (NGC 39)". NASA/IPAC Extragalactic Database. California Institute of Technology. https://ned.ipac.caltech.edu/byname?objname=NGC%2039&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1. Retrieved 2021-02-08. 
  2. Seligman, Courtney. "New General Catalogue objects: NGC 1 - 49". http://cseligman.com/text/atlas/ngc0.htm#39. Retrieved 2021-02-08. 
  3. Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series 100: 47. Bibcode1993A&AS..100...47G. 
  4. "SN 2024rbc". IAU. https://www.wis-tns.org/object/2024rbc. 

Coordinates: Sky map 00h 12m 18.8525s, +31° 03′ 39.946″