Epsilon Piscium
Template:Location mark Location of ε Piscium (circled) | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Pisces |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 4.27[3] |
| Characteristics | |
| Spectral type | K0 III[4] |
| U−B Template:Engvar | +0.691[3] |
| B−V Template:Engvar | +0.952[4] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[4] km/s |
| Proper motion (μ) | RA: Script error: No such module "val".[2] mas/yr Dec.: Script error: No such module "val".[2] mas/yr |
| Parallax (π) | 17.94±0.21 mas[2] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | 0.44[4] |
| Details | |
| Mass | 2.27[4] Template:Solar mass |
| Radius | Script error: No such module "val".[5] Template:Solar radius |
| Luminosity | Script error: No such module "val".[5] Template:Solar luminosity |
| Surface gravity (log g) | 2.99[6] cgs |
| Temperature | Script error: No such module "val".[5] K |
| Metallicity [Fe/H] | −0.39[6] dex |
| Age | 2.56[7] Gyr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| ε Piscium, ε Psc, Epsilon Psc, 71 Piscium, BD+07 153, FK5 36, GC 1258, HD 6186, HIP 4906, HR 294, PPM 144204, SAO 109627. | |
| Database references | |
| SIMBAD | data |
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Epsilon Piscium (Epsilon Psc, ε Piscium, ε Psc) is the Bayer designation for a star approximately Script error: No such module "convert". away from the Earth,[2] in the constellation Pisces. It is a yellow-orange star of the G9 III or K0 III spectral type. This is a giant star, slightly cooler in surface temperature, yet brighter and larger than the Sun.[5] It is a suspected occultation double, with both stars having the same magnitude, separated by 0.25 arcsecond.[8]
Naming
In Chinese, Script error: No such module "Lang". (Script error: No such module "Lang".), meaning Outer Fence, refers to an asterism consisting of ε Piscium, δ Piscium, ζ Piscium, μ Piscium, ν Piscium, ξ Piscium and α Piscium. Consequently, the Chinese name for ε Piscium itself is Script error: No such module "Lang". (Script error: No such module "Lang"., Template:Langx.)[9] In Japanese, 悠翔星 (Haruto-boshi), meaning "Soaring Forever Star," refers to the Japanese description of ε Piscium.
Planetary system
In 2021, a gas giant planetary candidate was detected by radial velocity method.[10] Template:OrbitboxPlanet begin Template:OrbitboxPlanet hypothetical
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References
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- ↑ Template:Cite simbad
- ↑ a b c d e f 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".
- ↑ a b Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Template:In lang AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 5 月 19 日 Template:Webarchive
- ↑ Script error: No such module "citation/CS1".
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