NGC 5440
Galaxy NGC 5440 |
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SDSS recording | |
AladinLite | |
Constellation | Hunting dogs |
Position equinox : J2000.0 , epoch : J2000.0 |
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Right ascension | 14 h 03 m 01.0 s |
declination | + 34 ° 45 ′ 28 ″ |
Appearance | |
Morphological type | Sat |
Brightness (visual) | 12.3 mag |
Brightness (B-band) | 13.2 mag |
Angular expansion | 2.2 ′ × 1.0 ′ |
Position angle | 50 ° |
Surface brightness | 13.0 mag / arcmin² |
Physical data | |
Affiliation | LGG 370 |
Redshift | 0.012305 ± 0.000020 |
Radial velocity | (3689 ± 6) km / s |
Stroke distance v rad / H 0 |
(168 ± 12) · 10 6 ly (51.5 ± 3.6) Mpc |
history | |
discovery | Wilhelm Herschel |
Discovery date | May 1, 1785 |
Catalog names | |
NGC 5440 • UGC 8963 • PGC 50042 • CGCG 191-040 • MCG + 06-31-052 • 2MASX J14030101 + 3445281 • GC 3754 • H II 416 • h 1739 • GALEX ASC J140300.99 + 344528.3 • HOLM 576A • LDCE 1021 NED010 |
NGC 5440 is a 12.3 likes bright spiral galaxy of Hubble type Sa in the constellation Canes Venatici. It is an estimated 168 million light years away from the Milky Way and has a diameter of about 110,000 ly. Together with NGC 5441 , it forms the galaxy pair Holm 576 .
In the same area of the sky are u. a. the galaxies NGC 5399 , NGC 5421 , NGC 5444 , NGC 5445 .
The Type Ia supernova SN 1998D was observed here.
The object was discovered on May 1, 1785 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as "pB, pL, irregularly extended, mbM".
NGC 5440 group ( LGG 370 )
Galaxy | Alternative name | Distance / million Lj |
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NGC 5440 | PGC 50042 | 168 |
NGC 5399 | PGC 49799 | 167 |
NGC 5444 | PGC 50080 | 179 |
NGC 5445 | PGC 50090 | 177 |
PGC 50116 | UGC 8984 | 174 |