Astronomy:NGC 3277

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NGC 3277
NGC 3277 imaged by SDSS
Observation data (J2000 epoch)
ConstellationLeo Minor[1][2]
Right ascension 10h 32m 55.4506s[3]
Declination+28° 30′ 42.409″[3]
Redshift0.004720±0.00000900[3]
Helio radial velocity1,415±3 km/s[3]
Distance148.34 ± 17.58 Mly (45.480 ± 5.389 Mpc)[3]
Group or clusterNGC 3254 group (LGG 197)
Apparent magnitude (V)11.7[2]
Characteristics
TypeSA(r)ab[3]
Size~103,600 ly (31.75 kpc) (estimated)[3]
Apparent size (V)2.1′ × 1.8′[2]
Other designations
IRAS 10301+2846, UGC 5731, MCG+05-25-022, PGC 31166[3]

NGC 3277 is a spiral galaxy in the constellation of Leo Minor.[2] Its velocity with respect to the cosmic microwave background is 1,712±21 km/s, which corresponds to a Hubble distance of 82.4 ± 5.9 Mly (25.26 ± 1.80 Mpc).[3] However, five non-redshift measurements give a much farther mean distance of 148.34 ± 17.58 Mly (45.480 ± 5.389 Mpc).[4] It was discovered by German-British astronomer William Herschel on 11 April 1785.[5][1]

NGC 3277 is a Seyfert II galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[6]

NGC 3254 group

NGC 3277 is a member of the NGC 3254 group (also known as LGG 197), which contains five galaxies, including NGC 3245A (d), NGC 3245, NGC 3254, and NGC 3265 (fr).[7][8]

Supernova

One Supernova has been observed in NGC 3277:

  • SN 2025coe (Type Ib-Ca-rich, mag. 17.4) was discovered by Kōichi Itagaki on 24 February 2025.[9] Its light curves displayed multiple distinct peaks which is very rare among known calcium-rich supernovae, with only SN 2019ehk showing similar features.[10] It had an exceptionally large projected physical offset of ~39.3 kpc (~317.7″) from the galactic center, making it the most distant multi-peaked calcium-rich supernova ever discovered relative to its host galaxy.[10] The progenitor system might have been ejected through dynamical interactions.[10]

See also

References

  1. ↑ 1.0 1.1 Seligman, Courtney. "New General Catalogue Objects: NGC 3277". https://cseligman.com/text/atlas/ngc32a.htm#3277. 
  2. ↑ 2.0 2.1 2.2 2.3 Finlay, Warren H. (2014). Concise Catalogue of Deep-Sky Objects. The Patrick Moore Practical Astronomy Series (2nd ed.). Springer Cham. p. 244. doi:10.1007/978-3-319-03170-5. ISBN 978-3-319-03169-9. 
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 "Results for object NGC 3277". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+3277. 
  4. ↑ "Distance Results for NGC 3277". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+3277. 
  5. ↑ Herschel, William (1786). "Catalogue of One Thousand New Nebulae and Clusters of Stars". Philosophical Transactions of the Royal Society of London 76: 457–499. doi:10.1098/rstl.1786.0027. Bibcode: 1786RSPT...76..457H. https://zenodo.org/record/1432282/files/article.pdf. 
  6. ↑ "NGC 3277". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+3277. 
  7. ↑ "LGG 197". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=LGG+197. 
  8. ↑ 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. 
  9. ↑ "SN 2025coe". IAU. https://www.wis-tns.org/object/2025coe. 
  10. ↑ 10.0 10.1 10.2 Chen, Chun; Sun, Ning-Chen; Xi, Qiang et al. (2025). "SN 2025coe: A Multiple-Peaked Calcium-Strong Transient from a White-Dwarf Progenitor". The Astrophysical Journal. Bibcode: 2025arXiv251000135C. 

Coordinates: Sky map 10h 32m 55.4506s, +28° 30′ 42.409″

Template:NGC objects:3001-4000



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