NGC 5493

Galaxy in the constellation Virgo From Wikipedia, the free encyclopedia

NGC 5493 is a peculiar lenticular galaxy in the constellation of Virgo. Its velocity with respect to the cosmic microwave background is 2,929±19 km/s, which corresponds to a Hubble distance of 140.9 ± 9.9 Mly (43.20 ± 3.04 Mpc).[1] However, three non-redshift measurements give a much closer mean distance of 64.73 ± 31.32 Mly (19.847 ± 9.602 Mpc).[2] It was discovered by German-British astronomer William Herschel on 22 February 1787.[3][4]

Right ascension14h 11m 29.3824s[1]
Declination−05° 02 37.090[1]
Redshift0.008889±0.0000170[1]
Quick facts Observation data (J2000 epoch), Constellation ...
NGC 5493
NGC 5493 imaged by Legacy Surveys
Observation data (J2000 epoch)
ConstellationVirgo
Right ascension14h 11m 29.3824s[1]
Declination−05° 02 37.090[1]
Redshift0.008889±0.0000170[1]
Heliocentric radial velocity2,665±5 km/s[1]
Distance64.73 ± 31.32 Mly (19.847 ± 9.602 Mpc)[1]
Group or clusterNGC 5427 group (LGG 374)
Apparent magnitude (V)12.27[1]
Characteristics
TypeS0 pec edge-on[1]
Size~41,100 ly (12.60 kpc) (estimated)[1]
Apparent size (V)1.6′ × 1.3′[1]
Other designations
2MASX J14112938-0502371, UGCA 386, MCG -01-36-013, PGC 50670[1]
Close

NGC 5493 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.[5][6]

NGC 5427 group

According to A. M. Garcia, NGC 5493 is a member of the NGC 5427 group (also known as LGG 374). This galaxy group has at least four other members, including NGC 5426, NGC 5427, NGC 5468, and NGC 5472 [fr].[7][8]

Supernova

One supernova has been observed in NGC 5493:

See also

References

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