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NGC 5555

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NGC 5555
The spiral galaxy, NGC 5555.
Observation data (J2000 epoch)
ConstellationVirgo
Right ascension14h 18m 48.0s
Declination−19° 08′ 20.1″
Redshift0.036515 ± 0.000033
Heliocentric radial velocity10,947 ± 10 km/s
Distance539 Mly (165.20 ± 11.57 Mpc)
Apparent magnitude (V)14.5
Apparent magnitude (B)15.3
Surface brightness13.51
Characteristics
TypeSb
SizeApproximately 143,000 ly (43.92 kpc)
Apparent size (V)1.0' x 0.4'
Other designations
PGC 51124, ESO 579-15, MCG -03-36-011, IRAS 14160-1854

NGC 5555 is a distant spiral galaxy located in the constellation Virgo. Its velocity in respect to the cosmic microwave background is 11,200 ± 20 km/s, corresponding to a Hubble Distance of 165 ± 12 Mpc (~538 million light-years).[1] It was discovered by Ormond Stone in 1886 who described it as "very faint, small, irregularly round with a bright middle nucleus."[2]

The galaxy morphology of NGC 5555 is Sb,[3][4][5] and it is known to contain regions of ionized hydrogen.[1]

To date, three non-redshift measurements give NGC 5555 a distance of 151,000 ± 6.245 megaparsecs (~493 million light-years), which is just within Hubble distance values.[6]

References

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  1. ^ a b "NASA/IPAC Extragalactic Database results for NGC 5555". ned.ipac.caltech.edu. Retrieved 2024-08-16.
  2. ^ "New General Catalog Objects: NGC 5550 - 5599". cseligman.com. Retrieved 2024-08-16.
  3. ^ "Revised Data from NGC/IC Catalogue, from NGC 5500 to 5599". astrovalleyfield.ca. Retrieved 2024-08-16.
  4. ^ "Revised NGC Data for NGC 5555". spider.seds.org. Retrieved 2024-08-16.
  5. ^ "NGC 5555 - spiral galaxy. Description NGC 5555:". kosmoved.ru. Retrieved 2024-08-16.
  6. ^ "NED Distance Results for NGC 5555". ned.ipac.caltech.edu. Retrieved 2024-08-16.
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