NGC 697
| Galaxy NGC 674 / NGC 697 |
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|---|---|
![NGC 697 [1], SDSS image](https://de.wikipedia.org/wiki/Datei:NGC697_-_SDSS_DR14.jpg)
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| NGC 697, SDSS image | |
| AladinLite | |
| Constellation | Aries |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 01 h 51 m 17.57 s |
| declination | + 22 ° 21 ′ 28.7 ″ |
| Appearance | |
| Morphological type | SAB (r) c: |
| Brightness (visual) | 12 likes |
| Brightness (B-band) | 12.8 mag |
| Angular expansion | 4 ′ × 1.3 ′ |
| Position angle | 105 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Affiliation |
NGC 691 group LGG 34 |
| Redshift | 0.010307 ± 0.000007 |
| Radial velocity | 3090 ± 2 km / s |
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Stroke distance v rad / H 0 |
(143 ± 10) · 10 6 ly (43.8 ± 3.1) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | September 15, 1784 |
| Catalog names | |
| NGC 674 • 697 • UGC 1317 • PGC 6848 • MCG + 04-05-022 • IRAS 1485 + 2206 • 2MASX J01511756 + 2221286 • GC 398/416 • H III 179 • HIPASS J0151 + 22 • LDCE 109 NED006 | |
NGC 674 = NGC 697 is a bar-spiral galaxy of the Hubble type SBbc in the constellation Aries on the ecliptic . It is an estimated 143 million light-years away from the Milky Way and about 165,000 light-years across . She is a member of the ten galaxies NGC 691 group ( LGG 34 ).
In the same area of the sky are u. a. the galaxies NGC 694 , NGC 695 , IC 167 , IC 1730 .
The object was discovered on September 15, 1784 by William Herschel (listed as NGC 697 ) and on December 2, 1861 by Heinrich d'Arrest ( cataloged as NGC 674 ).