Rho2 Cancri
Template:Other stars by Bayer designation
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Cancer |
| Right ascension | Template:RA[1] |
| Declination | Template:DEC[1] |
| Apparent magnitude (V) | 5.22[2] |
| Characteristics | |
| Spectral type | G8 III[3] or G8 II-III[4] |
| U−B Template:Engvar | +0.78[2] |
| B−V Template:Engvar | +1.00[2] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[5] km/s |
| Proper motion (μ) | RA: −13.014 mas/yr[1] Dec.: −32.535 mas/yr[1] |
| Parallax (π) | 5.5719±0.0903 mas[1] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | −1.13[3] |
| Details | |
| Mass | 3.59[6] Template:Solar mass |
| Radius | 24.2[3] Template:Solar radius |
| Luminosity | 310[3] Template:Solar luminosity |
| Surface gravity (log g) | 2.46[7] cgs |
| Temperature | 4,994[7] K |
| Metallicity [Fe/H] | 0.11[7] dex |
| Rotational velocity (v sin i) | 8.1[3] km/s |
| Age | 234[6] Myr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[8] | |
| Database references | |
| SIMBAD | data |
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Rho2 Cancri is a solitary,[4] yellow-hued star in the constellation Cancer. Its name is a Bayer designation that is Latinized from ρ2 Cancri, and abbreviated or Rho2 Cnc or ρ2 Cnc. With an apparent visual magnitude of 5.22,[2] it is visible to the naked eye on a dark night. Based upon an annual parallax shift of Script error: No such module "val". as seen from Earth,[1] this star is located approximately Script error: No such module "convert". from the Sun. At that distance, the visual magnitude is diminished by an extinction factor of 0.06 due to interstellar dust.[6] It is moving further away with a line of sight velocity of +16 km/s.[5]
At the age of about 234[6] million years, is an evolved, G-type giant star with a stellar classification of G8 III.[3] It has an estimated 3.6[6] times the mass of the Sun and has expanded to 24[3] times the Sun's radius. It is radiating 310[3] times the Sun's luminosity from its photosphere at an effective temperature of Script error: No such module "val"..[7] The star is spinning with a projected rotational velocity of 8 km/s.[3]
References
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- ↑ a b c d e Template:Cite Gaia DR3
- ↑ a b c d Script error: No such module "citation/CS1".
- ↑ a b c d e f g h i Script error: No such module "citation/CS1".
- ↑ a b Script error: No such module "citation/CS1".
- ↑ a b Script error: No such module "citation/CS1".
- ↑ a b c d e 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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