16 Cephei
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cepheus |
| Right ascension | Template:RA[1] |
| Declination | Template:DEC[1] |
| Apparent magnitude (V) | 5.036[2] |
| Characteristics | |
| Spectral type | F5V[3] |
| B−V Template:Engvar | 0.41[4] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[1] km/s |
| Proper motion (μ) | RA: Script error: No such module "val". mas/yr[1] Dec.: Script error: No such module "val". mas/yr[1] |
| Parallax (π) | 27.2259±0.0708 mas[1] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc)[1] |
| Absolute magnitude (MV) | 2.17[5] |
| Details[6] | |
| Mass | Script error: No such module "val". Template:Solar mass |
| Radius | Script error: No such module "val". Template:Solar radius |
| Luminosity | Script error: No such module "val". Template:Solar luminosity |
| Surface gravity (log g) | Script error: No such module "val". cgs |
| Temperature | Script error: No such module "val". K |
| Metallicity [Fe/H] | Script error: No such module "val". dex |
| Rotational velocity (v sin i) | 26.4[4] km/s |
| Age | 2[7] Gyr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[8] | |
| Database references | |
| SIMBAD | data |
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16 Cephei is a single[9] star located about 119 light years away from the Sun in the constellation of Cepheus. It is visible to the naked eye as a faint, yellow-white hued star with an apparent visual magnitude of 5.036.[2] The star has a relatively high proper motion, traversing the celestial sphere at the rate of 0.174 arc seconds per annum.[10] It is moving closer to the Earth with a heliocentric radial velocity of −20 km/s.[1]
This is an ordinary F-type main-sequence star, somewhat hotter than the sun, with a stellar classification of F5 V.[3] It is around two[7] billion years old with a projected rotational velocity of 26.4 km/s.[4] The star has an estimated 1.563 times the mass of the Sun and 2.452 times the Sun's radius. It is radiating 11 times the luminosity of the Sun from its photosphere at an effective temperature of 6,754 K.[6] The star is a source of X-ray emission.[11]
There are several 11th and 12th magnitude stars within a few arc-minutes of 16 Cephei, all of them distant background objects.[12] Only one of these is listed in the Washington Double Star Catalog and Catalog of Components of Double and Multiple Stars as a companion.[13]
References
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- ↑ a b c d e f g Template:Cite DR3
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- ↑ a b c Script error: No such module "Citation/CS1".Script error: No such module "Unsubst".
- ↑ Script error: No such module "Citation/CS1".
- ↑ a b Script error: No such module "Citation/CS1". 16 Cephei database entry at VizieR.
- ↑ a b Script error: No such module "Citation/CS1".
- ↑ Template:Cite simbad
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- ↑ Template:Cite DR2
- ↑ Script error: No such module "Citation/CS1".
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