Omicron Serpentis
From Infogalactic: the planetary knowledge core
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| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Serpens |
| Right ascension | 17h 41m 24.87286s [1] |
| Declination | −12° 52′ 31.1086″ [1] |
| Apparent magnitude (V) | 4.24 [2] |
| Characteristics | |
| Spectral type | A2Va [3] |
| B−V color index | +0.09 [2] |
| Astrometry | |
| Radial velocity (Rv) | -30.20[4] km/s |
| Proper motion (μ) | RA: -72.90[1] mas/yr Dec.: -55.55[1] mas/yr |
| Parallax (π) | 18.83 ± 0.25[1] mas |
| Distance | 173 ± 2 ly (53.1 ± 0.7 pc) |
| Absolute magnitude (MV) | 0.62 [5] |
| Other designations | |
| Database references | |
| SIMBAD | data |
Omicron Serpentis (ο Ser, ο Serpentis) is a star in the constellation Serpens.
Omicron Serpentis is a white A-type main sequence dwarf with an apparent magnitude of +4.24. It is approximately 173 light years from Earth.[1] It is classified as a Delta Scuti type variable star and its apparent magnitude varies by 0.01 with a period of 76 minutes.[6]
References
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- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Lua error in package.lua at line 80: module 'strict' not found. Vizier catalog entry
- ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
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- ↑ Absolute magnitude calculated as
, where 
is the star's absolute magnitude, 
is the star's apparent magnitude, and 
is the star's measured parallax in arcseconds. - ↑ Lua error in package.lua at line 80: module 'strict' not found. Vizier catalog entry
