Astronomy:NGC 5907

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Short description: Galaxy in the constellation Draco
NGC 5907
NGC 5907.jpg
NGC 5907
Observation data (J2000 epoch)
ConstellationDraco
Right ascension 15h 15m 53.8s[1]
Declination+56° 19′ 44″[1]
Redshift0.002225[1]
Helio radial velocity667 ± 3 km/s[1]
Distance53.5 ± 8.1 Mly
(16.4 ± 2.5 Mpc)[2]
Apparent magnitude (V)11.1[1]
Characteristics
TypeSA(s)c:
Apparent size (V)12.7' x 1.4'[1]
Other designations
H II.759, GC 4087, h 1917, Splinter Galaxy, NGC 5906, UGC 09801, PGC 054470, MCG +09-25-040[1]

NGC 5907 (also known as Knife Edge Galaxy or Splinter Galaxy) is a spiral galaxy located approximately 50 million light years from Earth.[2] William Herschel discovered the galaxy in 1788.

Characteristics

NGC 5907 has an anomalously low metallicity and few detectable giant stars, being apparently composed almost entirely of dwarf stars.[3] It is a member of the NGC 5866 Group.

NGC 5907 has long been considered a prototypical example of a warped spiral in relative isolation. In 2006, an international team of astronomers announced the presence of an extended tidal stream surrounding the galaxy that challenges this picture and suggests the gravitational perturbations induced by the stream progenitor may be the cause for the warp. The existence of part of these tidal streams has been recently challenged by some deeper surveys.

One supernova has been observed in NGC 5907: SN 1940A (type unknown , mag 14.3).[4][5]

An ultraluminous X-ray source is located in the galaxy.[6]

Location

NGC 5907-starmap.png

The edge-on galaxy is seen in the constellation Draco, near the star iota Draconis. It is seen in the sky near to the much more distant galaxy NGC 5965.

NGC Identification

NGC 5907 is also known as NGC 5906.[7][8] This second NGC number refers to a fainter part of the galaxy[7] lying west of the dust lane[8] that was recorded by astronomer and physicist George Johnstone Stoney on April 13, 1850.[7]

Gallery

  • Spiral galaxy NGC 5907, by HST.

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 "NASA/IPAC Extragalactic Database". Results for NGC 5907. http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+5907&img_stamp=yes&extend=no. 
  2. ↑ 2.0 2.1 "Distance Results for NGC 5907". NASA/IPAC Extragalactic Database. http://nedwww.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+5907. 
  3. ↑ Liu, M. C.; Marleau, F. R.; Graham, J. R.; Charlot, S.; Sackett, P.; Zepf, S. E. (December 1998). "Weighing the Stellar Content of NGC 5907's Dark Matter Halo". Bulletin of the American Astronomical Society 30: 1258. Bibcode: 1998AAS...193.0807L. 
  4. ↑ "List of Supernovae". Harvard-Smithsonian Center for Astrophysics (IAU). http://cbat.eps.harvard.edu/lists/Supernovae.html#1940A. 
  5. ↑ Transient Name Server entry for SN 1940A. Retrieved 28 March 2023.
  6. ↑ Israel, Gian Luca; Belfiore, Andrea; Stella, Luigi; Esposito, Paolo; Casella, Piergiorgio; De Luca, Andrea; Marelli, Martino; Papitto, Alessandro et al. (24 Feb 2017). "An accreting pulsar with extreme properties drives an ultraluminous x-ray source in NGC 5907". Science 355 (6327): 817–819. doi:10.1126/science.aai8635. PMID 28219970. Bibcode: 2017Sci...355..817I. 
  7. ↑ 7.0 7.1 7.2 "New General Catalog Objects: NGC 5900 - 5949". https://cseligman.com/text/atlas/ngc59.htm#5906. 
  8. ↑ 8.0 8.1 "Your NED Search Results". http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC%205907&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA%20or%20Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES. 

External links

Coordinates: Sky map 15h 15m 53.8s, +56° 19′ 44″



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