| Observation data Epoch J2000.0 Equinox J2000.0 ( ICRS) | |
|---|---|
| Constellation | Serpens |
| Right ascension | 15h 41m 54.7132s [1] |
| Declination | +18° 27′ 50.532″ [1] |
| Apparent magnitude (V) | 5.804 [1] |
| Characteristics | |
| Spectral type | A8Vam [2] |
| U−B color index | +0.11 [3] |
| B−V color index | +0.20 [3] |
| R−I color index | +0.10 [3] |
| Astrometry | |
| Radial velocity (Rv) | −29.5±2 [1] km/s |
| Proper motion (μ) |
RA: −73.00
[1]
mas/
yr Dec.: +56.85 [1] mas/ yr |
| Parallax (π) | 18.78 ± 0.82 mas [1] |
| Distance | 174 ± 8
ly (53 ± 2 pc) |
| Absolute magnitude (MV) | +2.18 [4] |
| Details | |
| Luminosity | 11 [4] L☉ |
| Rotational velocity (v sin i) | 20 [3] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
Tau7 Serpentis, Latinized from τ7 Serpentis, is an A-type star in the constellation of Serpens, approximately 174 light-years from the Earth. [1] It has an apparent visual magnitude of approximately 5.804. [1]
References
- ^ a b c d e f g h i j * 22 Ser -- Star, database entry, SIMBAD. Accessed on line September 19, 2008.
- ^ Barry, Don C. (1970). "Spectral Classification of a and F Stars". Astrophysical Journal Supplement. 19: 281. Bibcode: 1970ApJS...19..281B. doi: 10.1086/190209.
- ^ a b c d HR 5845, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed on line September 19, 2008.
- ^ a b Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv: 1108.4971, Bibcode: 2012AstL...38..331A, doi: 10.1134/S1063773712050015, S2CID 119257644.
| Stars |
| ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||||
|
Star clusters |
| ||||||||||||
| Nebulae |
| ||||||||||||
| Galaxies |
| ||||||||||||
| |||||||||||||
| |||||||||||||
 | This main-sequence-star-related article is a stub. You can help Wikipedia by expanding it. |
| Observation data Epoch J2000.0 Equinox J2000.0 ( ICRS) | |
|---|---|
| Constellation | Serpens |
| Right ascension | 15h 41m 54.7132s [1] |
| Declination | +18° 27′ 50.532″ [1] |
| Apparent magnitude (V) | 5.804 [1] |
| Characteristics | |
| Spectral type | A8Vam [2] |
| U−B color index | +0.11 [3] |
| B−V color index | +0.20 [3] |
| R−I color index | +0.10 [3] |
| Astrometry | |
| Radial velocity (Rv) | −29.5±2 [1] km/s |
| Proper motion (μ) |
RA: −73.00
[1]
mas/
yr Dec.: +56.85 [1] mas/ yr |
| Parallax (π) | 18.78 ± 0.82 mas [1] |
| Distance | 174 ± 8
ly (53 ± 2 pc) |
| Absolute magnitude (MV) | +2.18 [4] |
| Details | |
| Luminosity | 11 [4] L☉ |
| Rotational velocity (v sin i) | 20 [3] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
Tau7 Serpentis, Latinized from τ7 Serpentis, is an A-type star in the constellation of Serpens, approximately 174 light-years from the Earth. [1] It has an apparent visual magnitude of approximately 5.804. [1]
References
- ^ a b c d e f g h i j * 22 Ser -- Star, database entry, SIMBAD. Accessed on line September 19, 2008.
- ^ Barry, Don C. (1970). "Spectral Classification of a and F Stars". Astrophysical Journal Supplement. 19: 281. Bibcode: 1970ApJS...19..281B. doi: 10.1086/190209.
- ^ a b c d HR 5845, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed on line September 19, 2008.
- ^ a b Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv: 1108.4971, Bibcode: 2012AstL...38..331A, doi: 10.1134/S1063773712050015, S2CID 119257644.
| Stars |
| ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||||
|
Star clusters |
| ||||||||||||
| Nebulae |
| ||||||||||||
| Galaxies |
| ||||||||||||
| |||||||||||||
| |||||||||||||
|
| This main-sequence-star-related article is a stub. You can help Wikipedia by expanding it. |