NGC 2787

NGC 2787
NGC 2787 as observed by the Hubble Space Telescope (HST).
Observation data (J2000 epoch)
Constellation	Ursa Major
Right ascension	09h 19m 18.5s[1]
Declination	+69° 12′ 12″[1]
Redshift	696 ± 8 km/s[1]
Distance	24 ± 4 Mly (7.5 ± 1.2 Mpc)[2]
Type	SB(r)0+[1]
Apparent dimensions (V)	3′.2 × 2′.0[1]
Apparent magnitude (V)	11.8[1]
Notable features	barred galaxy
Other designations
UGC 4914,[1] PGC 26341[1]
See also: Galaxy, List of galaxies

NGC 2787 is a barred lenticular galaxy approximately 24 million light-years away in the constellation Ursa Major. In 1999, the Hubble Space Telescope took a look at NGC 2787.

LINER emission

NGC 2787 contains a low-ionization nuclear emission-line region (LINER), a type of region that is characterized by spectral line emission from weakly ionized atoms.^[3] LINERs are very common within lenticular galaxies, approximately one-fifth of nearby lenticular galaxies contain LINERs.^[4]

References

1. ^ ^{a b c d e f g h} "NASA/IPAC Extragalactic Database". Results for NGC 2787. http://nedwww.ipac.caltech.edu/. Retrieved 2006-12-13. 
2. ^ J. L. Tonry, A. Dressler, J. P. Blakeslee, E. A. Ajhar, A. B. Fletcher, G. A. Luppino, M. R. Metzger, C. B. Moore (2001). "The SBF Survey of Galaxy Distances. IV. SBF Magnitudes, Colors, and Distances". Astrophysical Journal 546 (2): 681–693. arXiv:astro-ph/0011223. Bibcode 2001ApJ...546..681T. doi:10.1086/318301. 
3. ^ L. C. Ho, A. V. Filippenko, W. L. W. Sargent (1997). "A Search for "Dwarf" Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies". Astrophysical Journal Supplement 112 (2): 315–390. arXiv:astro-ph/9704107. Bibcode 1997ApJS..112..315H. doi:10.1086/313041. 
4. ^ L. C. Ho, A. V. Filippenko, W. L. W. Sargent (1997). "A Search for "Dwarf" Seyfert Nuclei. V. Demographics of Nuclear Activity in Nearby Galaxies". Astrophysical Journal 487 (2): 568–578. arXiv:astro-ph/9704108. Bibcode 1997ApJ...487..568H. doi:10.1086/304638. 

External links

• A Galaxy That's All Wound Up
• NGC 2787 at ESA/Hubble