12 Cancri
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cancer |
| Right ascension | Template:RA[1] |
| Declination | Template:DEC[1] |
| Apparent magnitude (V) | 6.25[2] |
| Characteristics | |
| Spectral type | F3 V[3] |
| B−V Template:Engvar | Script error: No such module "val".[2] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[4] km/s |
| Proper motion (μ) | RA: +2.776[1] mas/yr Dec.: −14,723[1] mas/yr |
| Parallax (π) | 12.7085±0.1327 mas[1] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | 1.59[5] |
| Details | |
| Mass | 1.16[6] Template:Solar mass |
| Luminosity | 17.94[2] Template:Solar luminosity |
| Surface gravity (log g) | Script error: No such module "val".[6] cgs |
| Temperature | Script error: No such module "val".[7] K |
| Metallicity [Fe/H] | 0.04[7] dex |
| Rotational velocity (v sin i) | Script error: No such module "val".[5] km/s |
| Age | 2.466[6] Gyr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[8] | |
| Database references | |
| SIMBAD | data |
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12 Cancri is a star in the zodiac constellation Cancer. It has an apparent visual magnitude of 6.25,[2] placing just below the normal limit for stars visible to the naked eye in good seeing conditions. The star displays an annual parallax shift of 12.7 mas as seen from Earth's orbit, which places it at a distance of about 257 light-years. It is moving toward the Sun with a radial velocity of around −10 km/s.[4]
This is an ordinary F-type main-sequence star with a stellar classification of F3 V,[3] which indicates it is generating energy through hydrogen fusion at its core. It is spinning with a projected rotational velocity of 52[5] km/s and appears to be undergoing solar-like differential rotation with relative rate of α = Script error: No such module "val"..[9] The star is about 2.5[6] billion years old with 1.16[6] times the mass of the Sun and is radiating nearly 18[2] times the Sun's luminosity from its photosphere at an effective temperature of around Script error: No such module "val"..[7]
References
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- ↑ a b c d e Template:Cite Gaia DR3
- ↑ a b c d e Script error: No such module "citation/CS1".
- ↑ a b Script error: No such module "citation/CS1".
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- ↑ a b c Script error: No such module "citation/CS1".
- ↑ a b c d e Script error: No such module "citation/CS1".
- ↑ a b c Script error: No such module "citation/CS1".
- ↑ Template:Cite simbad
- ↑ Script error: No such module "citation/CS1".
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