Omicron1 Cancri
Template:Other stars by Bayer designation
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Cancer[1] |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | +5.20[3] |
| Characteristics | |
| Spectral type | A5 III[4] |
| B−V Template:Engvar | +0.1540[3] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[5] km/s |
| Proper motion (μ) | RA: +60.732 mas/yr[2] Dec.: +20.396 mas/yr[2] |
| Parallax (π) | 20.3294±0.0891 mas[2] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | +1.92[1] |
| Details | |
| Mass | 2.02[6] Template:Solar mass |
| Radius | 1.86[7] Template:Solar radius |
| Luminosity | 13.4[8] Template:Solar luminosity |
| Surface gravity (log g) | 3.982Script error: No such module "Su".[9] cgs |
| Temperature | 8,145±3[9] K |
| Metallicity [Fe/H] | −0.85Script error: No such module "Su".[9] dex |
| Rotational velocity (v sin i) | 90[6] km/s |
| Age | 598[6] Myr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[10] | |
| Database references | |
| SIMBAD | data |
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Omicron1 Cancri is a solitary,[11] white-hued star in the zodiac constellation of Cancer. Its name is a Bayer designation that is Latinized from ο1 Cancri, and abbreviated Omicron1 Cancri or ο1 Cnc. This star is faintly visible to the naked eye with an apparent visual magnitude of +5.20.[3] Based upon an annual parallax shift of Script error: No such module "val". as seen from Earth,[2] it is located Script error: No such module "convert". away from the Sun. It most likely forms a co-moving pair with Omicron2 Cancri.[12]
With a stellar classification of A5 III,[4] this presents as an evolved, A-type giant star. At the age of about 600 million years,[6] it has double[6] the mass of the Sun and 1.86 times the Sun's radius.[7] Omicron1 Cancri is radiating 13.4[8] times the solar luminosity from its photosphere at an effective temperature of about Script error: No such module "val"..[9] It has a high rate of spin, showing a projected rotational velocity of 90 km/s.[13]
Omicron1 Cancri has an infrared excess, indicating it surrounded by a circumstellar debris disk.[7] The signature matches a two-component disk with the spatially separated belts having temperatures of 146 K and 81 K.[8]
References
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- ↑ a b Template:Cite XHIP
- ↑ a b c d e Template:Cite Gaia DR3
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- ↑ a b c d e Script error: No such module "citation/CS1".
- ↑ a b c Script error: No such module "citation/CS1".
- ↑ a b c Script error: No such module "citation/CS1".
- ↑ a b c d Script error: No such module "citation/CS1".
- ↑ Template:Cite simbad
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- ↑ Script error: No such module "citation/CS1".
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