(Redirected from
Phi¹ Cancri)
| Observation data Epoch J2000.0 Equinox J2000.0 ( ICRS) | |
|---|---|
| Constellation | Cancer |
| Right ascension | 08h 26m 27.70615s [1] |
| Declination | +27° 53′ 36.8867″ [1] |
| Apparent magnitude (V) | +5.57 [2] |
| Characteristics | |
| Spectral type | K5 III [3] |
| U−B color index | +1.68 [2] |
| B−V color index | +1.40 [2] |
| Astrometry | |
| Radial velocity (Rv) | +25.25±0.19 [4] km/s |
| Proper motion (μ) |
RA: −33.28
[1]
mas/
yr Dec.: −116.17 [1] mas/ yr |
| Parallax (π) | 8.74 ± 0.40 mas [1] |
| Distance | 370 ± 20
ly (114 ± 5 pc) |
| Absolute magnitude (MV) | +0.29 [5] |
| Details | |
| Radius | 17 [6] R☉ |
| Luminosity | 121 [7] L☉ |
| Temperature | 4,138 [7] K |
| Metallicity [Fe/H] | −0.134±0.093 [8] dex |
| Rotational velocity (v sin i) | 1.3 [9] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
Phi1 Cancri, Latinised from φ1 Cancri, is a solitary, [3] orange-hued star in the constellation Cancer. It is faintly visible to the naked eye with an apparent visual magnitude of +5.57. [2] Based upon an annual parallax shift of 8.74 mas, [1] it is approximately 370 light-years from the Sun.
This is an evolved K-type giant star with a stellar classification of K5 III. [3] The measured angular diameter of this star, after correction for limb darkening, is 1.87±0.02 mas. [11] At the estimated distance of Phi1 Cancri, this yields a physical size of about 17 times the radius of the Sun. [6] It is radiating 121 times the Sun's luminosity from its photosphere at an effective temperature of 4,138 K. [7]
- ^ a b c d e f van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv: 0708.1752, Bibcode: 2007A&A...474..653V, doi: 10.1051/0004-6361:20078357, S2CID 18759600.
- ^ a b c d Ducati, J. R. (2002), "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system", CDS/ADC Collection of Electronic Catalogues, 2237, Bibcode: 2002yCat.2237....0D.
- ^ a b c Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv: 0806.2878, Bibcode: 2008MNRAS.389..869E, doi: 10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
- ^ de Bruijne, J. H. J.; Eilers, A.-C. (October 2012), "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project", Astronomy & Astrophysics, 546: 14, arXiv: 1208.3048, Bibcode: 2012A&A...546A..61D, doi: 10.1051/0004-6361/201219219, S2CID 59451347, A61.
- ^ Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv: 1108.4971, Bibcode: 2012AstL...38..331A, doi: 10.1134/S1063773712050015, S2CID 119257644.
- ^
a
b Lang, Kenneth R. (2006),
Astrophysical formulae, Astronomy and astrophysics library, vol. 1 (3rd ed.),
Birkhäuser,
ISBN
3-540-29692-1. The radius (R*) is given by:
- ^ a b c Cousins, A. W. J.; et al. (1966), "Photoelectric magnitudes and colours of southern stars, II", Royal Observatory Bulletins, 121: 1, Bibcode: 1966RGOB..121....1C.
- ^ Taylor, B. J. (February 1999), "Catalogs of temperatures and [Fe/H] averages for evolved G and K stars", Astronomy and Astrophysics Supplement, 134 (3): 523–524, Bibcode: 1999A&AS..134..523T, doi: 10.1051/aas:1999153.
- ^ De Medeiros, J. R.; et al. (November 2000), "Rotation and lithium in single giant stars", Astronomy and Astrophysics, 363: 239–243, arXiv: astro-ph/0010273, Bibcode: 2000A&A...363..239D.
- ^ "phi01 Cnc". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-06-09.
- ^ Richichi, A.; et al. (February 2005), "CHARM2: An updated Catalog of High Angular Resolution Measurements", Astronomy and Astrophysics, 431 (2): 773–777, Bibcode: 2005A&A...431..773R, doi: 10.1051/0004-6361:20042039.
(Redirected from
Phi¹ Cancri)
| Observation data Epoch J2000.0 Equinox J2000.0 ( ICRS) | |
|---|---|
| Constellation | Cancer |
| Right ascension | 08h 26m 27.70615s [1] |
| Declination | +27° 53′ 36.8867″ [1] |
| Apparent magnitude (V) | +5.57 [2] |
| Characteristics | |
| Spectral type | K5 III [3] |
| U−B color index | +1.68 [2] |
| B−V color index | +1.40 [2] |
| Astrometry | |
| Radial velocity (Rv) | +25.25±0.19 [4] km/s |
| Proper motion (μ) |
RA: −33.28
[1]
mas/
yr Dec.: −116.17 [1] mas/ yr |
| Parallax (π) | 8.74 ± 0.40 mas [1] |
| Distance | 370 ± 20
ly (114 ± 5 pc) |
| Absolute magnitude (MV) | +0.29 [5] |
| Details | |
| Radius | 17 [6] R☉ |
| Luminosity | 121 [7] L☉ |
| Temperature | 4,138 [7] K |
| Metallicity [Fe/H] | −0.134±0.093 [8] dex |
| Rotational velocity (v sin i) | 1.3 [9] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
Phi1 Cancri, Latinised from φ1 Cancri, is a solitary, [3] orange-hued star in the constellation Cancer. It is faintly visible to the naked eye with an apparent visual magnitude of +5.57. [2] Based upon an annual parallax shift of 8.74 mas, [1] it is approximately 370 light-years from the Sun.
This is an evolved K-type giant star with a stellar classification of K5 III. [3] The measured angular diameter of this star, after correction for limb darkening, is 1.87±0.02 mas. [11] At the estimated distance of Phi1 Cancri, this yields a physical size of about 17 times the radius of the Sun. [6] It is radiating 121 times the Sun's luminosity from its photosphere at an effective temperature of 4,138 K. [7]
- ^ a b c d e f van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv: 0708.1752, Bibcode: 2007A&A...474..653V, doi: 10.1051/0004-6361:20078357, S2CID 18759600.
- ^ a b c d Ducati, J. R. (2002), "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system", CDS/ADC Collection of Electronic Catalogues, 2237, Bibcode: 2002yCat.2237....0D.
- ^ a b c Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv: 0806.2878, Bibcode: 2008MNRAS.389..869E, doi: 10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
- ^ de Bruijne, J. H. J.; Eilers, A.-C. (October 2012), "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project", Astronomy & Astrophysics, 546: 14, arXiv: 1208.3048, Bibcode: 2012A&A...546A..61D, doi: 10.1051/0004-6361/201219219, S2CID 59451347, A61.
- ^ Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv: 1108.4971, Bibcode: 2012AstL...38..331A, doi: 10.1134/S1063773712050015, S2CID 119257644.
- ^
a
b Lang, Kenneth R. (2006),
Astrophysical formulae, Astronomy and astrophysics library, vol. 1 (3rd ed.),
Birkhäuser,
ISBN
3-540-29692-1. The radius (R*) is given by:
- ^ a b c Cousins, A. W. J.; et al. (1966), "Photoelectric magnitudes and colours of southern stars, II", Royal Observatory Bulletins, 121: 1, Bibcode: 1966RGOB..121....1C.
- ^ Taylor, B. J. (February 1999), "Catalogs of temperatures and [Fe/H] averages for evolved G and K stars", Astronomy and Astrophysics Supplement, 134 (3): 523–524, Bibcode: 1999A&AS..134..523T, doi: 10.1051/aas:1999153.
- ^ De Medeiros, J. R.; et al. (November 2000), "Rotation and lithium in single giant stars", Astronomy and Astrophysics, 363: 239–243, arXiv: astro-ph/0010273, Bibcode: 2000A&A...363..239D.
- ^ "phi01 Cnc". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-06-09.
- ^ Richichi, A.; et al. (February 2005), "CHARM2: An updated Catalog of High Angular Resolution Measurements", Astronomy and Astrophysics, 431 (2): 773–777, Bibcode: 2005A&A...431..773R, doi: 10.1051/0004-6361:20042039.