NGC 2008 explained

NGC 2008
Epoch:J2000
Ra:05h 35m 03s
Dec:-50° 58 00
Constellation Name:Pictor
Sbrightness:23.27 mag/arcsec2
Appmag B:14.64
Dist Ly:499 Mly (152.91 Mpc)
Names:PGC 17480, ESO 204-20, AM 0533-505
Z:0.034387
Type:Sc
Size:225,000 ly (estimated 68.91 kpc)
Size V:1.5' x 0.7'
H Radial V:10,309 km/s

NGC 2008 is a distant spiral galaxy located in the constellation Pictor. Its speed relative to the cosmic microwave background is 10,367 ± 11 km/s, which corresponds to a Hubble distance of 153 ± 11 Mpc (~499 million ly).[1] NGC 2008 was discovered by British astronomer John Herschel in 1834. The luminosity class of NGC 2008 is III with an apparent magnitude of 13.2.

NGC 2008 is classified as a type Sc galaxy with a small central budge structure and open spiral arms.[2] [3] [4]

To date, four non-redshift measurements yield a distance of 135.750 ± 10.521 Mpc (~443 million ly), which is within the Hubble distance range. Note, however, that it is with the average value of independent measurements, when they exist, that the NASA/IPAC database[5] calculates the diameter of a galaxy and that consequently the diameter of NGC 2008 could be approximately 77 kpc (~253,000 ly) if we used the Hubble distance to calculate it.[6]

According to Soares and his colleagues, NGC 2007 and NGC 2008 form a pair of galaxies. However, the Hubble distance of NGC 2007 is 67.57 ± 4.73 Mpc (~220 million ly). These two galaxies therefore form a purely optical pair.[7] [8]

See also

External links

References

  1. Web site: By Name NASA/IPAC Extragalactic Database . 2024-06-02 . ned.ipac.caltech.edu.
  2. Web site: information@eso.org . Open Arms . 2024-07-31 . www.esahubble.org . en.
  3. Web site: Lazaro . Enrico de . 2020-02-10 . Hubble Snaps Beautiful Image of NGC 2008 Sci.News . 2024-07-31 . Sci.News: Breaking Science News . en-US.
  4. Web site: Hubble Embraces Spiral With Open Arms - NASA Science . 2024-07-31 . science.nasa.gov . en-US.
  5. Web site: Revised data from NGC/IC Catalogue from NGC 2000 to 2099 . 2024-06-02 . astrovalleyfield.ca.
  6. Web site: NED Query Results for NGC 2008 . 2024-07-31 . ned.ipac.caltech.edu.
  7. Web site: New General Catalog Objects: NGC 2000 - 2049 . 2024-06-02 . cseligman.com.
  8. Web site: Southern Binary Galaxies - A Sample of Isolated Pairs . 2024-07-31 . JWS_ES01.