NGC 3666 is an unbarred spiral galaxy in the constellation Leo. It was discovered by William Herschel on March 15, 1784.[3] It is a member of the Leo II Groups, a series of galaxies and galaxy clusters strung out from the right edge of the Virgo Supercluster.[4]
| NGC 3666 | |
|---|---|
Hubble Space Telescope image of NGC 3666 | |
| Observation data (J2000 epoch) | |
| Constellation | Leo |
| Right ascension | 11h 24m 26s[1] |
| Declination | +11° 20′ 31″[1] |
| Redshift | 0.003536[2] |
| Helio radial velocity | 1018 ± 1 km/s[2] |
| Apparent magnitude (B) | 12.5[1] |
| Characteristics | |
| Type | SA(rs)c[2] |
| Other designations | |
| NGC 3666, LEDA 35043, UGC 6420[1] | |
New General Catalogue 3500 to 3999 | |
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