NGC 5775

NGC 5775 is a spiral galaxy, a member of the Virgo Cluster, that lies at a distance of about 70 million light-years. Although the spiral is tilted away from us, with only a thin sliver in view, such a perspective can be advantageous for astronomers. For instance, astronomers have previously used the high inclination of this spiral to study the properties of the halo of hot gas^[4] that is visible when the galaxy is observed at X-ray wavelengths. It is a member of the NGC 5775 Group of galaxies, itself one of the Virgo III Groups strung out to the east of the Virgo Supercluster of galaxies.^[5]

NGC 5775
NGC 5775 imaged by the Hubble Space Telescope, using the Advanced Camera for Surveys
Observation data (J2000 epoch)
Constellation	Virgo
Right ascension	14h 53m 57.653s[1]
Declination	+03° 32′ 40.10″[1]
Redshift	0.005607[2]
Heliocentric radial velocity	1681[2]
Distance	66.33 ± 13.31 Mly (20.338 ± 4.081 Mpc)[2]
Group or cluster	Virgo Cluster
Apparent magnitude (V)	11.34
Apparent magnitude (B)	13.0
Characteristics
Type	Sbc[3]
Apparent size (V)	3.967' × 0.793'[1]
Other designations
UGC 9579, MCG+01-38-014, PGC 53247[3]

One supernova has been observed in NGC 5775: SN 1996ae (type IIn, mag. 16.5) was discovered by A. Vagnozzi, G. Piermarini, and V. Russo on 21 May 1996.^[6][7]

Interaction with NGC 5774

NGC 5775 is interacting with the nearby galaxy NGC 5774 in the form of two connecting H I bridges through which the gas is travelling from NGC 5774 to NGC 5775.^[8] Faint optical emission as well as radio continuum emission are also present along the bridges.^[9] It is possible that star formation is occurring between the galaxies.^[8]

This system may be in the early stages of a merger.^[9]

Gallery

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  NGC 5775 by Hubble Space Telescope
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  NGC 5775 (SDSS DR14)
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  NGC 5775 (HST)