NGC 2008

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NGC 2008
NGC2008 - HST - Potw2006a.tiff
NGC 2008 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
Constellation Pictor
Right ascension 05h 35m 03s
Declination -50° 58′ 00″
Redshift 0.034387
Heliocentric radial velocity 10,309 km/s
Distance 499 Mly (152.91 Mpc)
Apparent magnitude  (B)14.64
Surface brightness 23.27 mag/arcsec2
Characteristics
Type Sc
Size225,000 ly (estimated 68.91 kpc)
Apparent size  (V)1.5' x 0.7'
Other designations
PGC 17480, ESO 204-20, AM 0533-505

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. [2] The luminosity class of NGC 2008 is III [1] with an apparent magnitude of 13.2. [3]

Contents

NGC 2008 is classified as a type Sc galaxy with a small central budge structure and open spiral arms. [4] [5] [6]

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 [3] 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. [7]

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. [2] [8]

See also

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References

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