NGC 4708

Galaxy in the constellation Virgo From Wikipedia, the free encyclopedia

NGC 4708 is a peculiar spiral galaxy in the constellation of Virgo. Its velocity with respect to the cosmic microwave background is 4,505±25 km/s, which corresponds to a Hubble distance of 216.7 ± 15.2 Mly (66.44 ± 4.67 Mpc).[1] However, 15 non-redshift measurements give a closer mean distance of 204.76 ± 19.97 Mly (62.780 ± 6.122 Mpc).[2] It was discovered by German-British astronomer William Herschel on 11 March 1788.[3]

Right ascension12h 49m 41.4813s[1]
Declination−11° 05 34.679[1]
Redshift0.013900±0.0000270[1]
Quick facts Observation data (J2000 epoch), Constellation ...
NGC 4708
NGC 4708 imaged by Legacy Surveys
Observation data (J2000 epoch)
ConstellationVirgo
Right ascension12h 49m 41.4813s[1]
Declination−11° 05 34.679[1]
Redshift0.013900±0.0000270[1]
Heliocentric radial velocity4,167±8 km/s[1]
Distance204.76 ± 19.97 Mly (62.780 ± 6.122 Mpc)[1]
Group or clusterHolm 463
Apparent magnitude (V)13.1[1]
Characteristics
TypeSA(r)ab pec[1]
Size~118,100 ly (36.22 kpc) (estimated)[1]
Apparent size (V)1.2′ × 0.9′[1]
Other designations
HOLM 463A, IRAS 12470-1049, 2MASX J12494148-1105350, MCG -02-33-016, PGC 43382[1]
Close

NGC 4708 has a possible active galactic nucleus, i.e. it has a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum, with characteristics indicating that this luminosity is not produced by the stars.[4][5]

NGC 4708 and neighboring galaxy LEDA 970118 [d] are listed together as Holm 463 in Erik Holmberg's A Study of Double and Multiple Galaxies Together with Inquiries into some General Metagalactic Problems, published in 1937.[6]

Supernovae

Three supernovae have been observed in NGC 4708:

See also

References

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