  | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Perseus |
| Right ascension | 04h 36m 41.43017s [1] |
| Declination | +41° 15′ 53.3213″ [1] |
| Apparent magnitude (V) | 4.26 [2] |
| Characteristics | |
| Spectral type | K1II + B7V [3] |
| U−B color index | +0.81 [2] |
| B−V color index | +1.24 [2] |
| Astrometry | |
| Radial velocity (Rv) | +9.80 [4] km/s |
| Proper motion (μ) |
RA: −4.56
[1]
mas/
yr Dec.: −17.84 [1] mas/ yr |
| Parallax (π) | 4.09 ± 0.38 mas [1] |
| Distance | 800 ± 70
ly (240 ± 20 pc) |
| Absolute magnitude (MV) | -2.67 [5] |
| Orbit [6] | |
| Primary | 58 Persei A |
| Companion | 58 Persei B |
| Period (P) | 28.8 yr |
| Semi-major axis (a) | 0.051″ |
| Eccentricity (e) | 0.64 |
| Inclination (i) | 81° |
| Longitude of the node (Ω) | 237° |
| Periastron epoch (T) | 1978.65 |
|
Argument of periastron (ω) (secondary) | 191° |
| Details | |
| 58 Per A | |
| Mass | 6.8±0.2 [7] M☉ |
| Radius | 56±11 [8] R☉ |
| Luminosity | 1,698 [5] L☉ |
| Surface gravity (log g) | 2.21 [9] cgs |
| Temperature | 5,173±32 [7] K |
| Metallicity [Fe/H] | −0.20 [5] dex |
| Rotational velocity (v sin i) | 11.0 [10] km/s |
| Age | 50.1±6.8 [7] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
58 Persei is a binary [3] and possibly a triple [12] star system in the northern constellation of Perseus. It has the Bayer designation e Persei, while 58 Persei is the Flamsteed designation. This system is visible to the naked eye as a faint point of light with an apparent visual magnitude of 4.26. [2] It is approximately 800 light years away from the Sun based on parallax, [1] and is drifting further away with a radial velocity of +10 km/s. [4]
This is a single-lined spectroscopic binary system with an orbital period of 28.7 years and an eccentricity of 0.65. [13] The primary member, designated component A, is an orange-hued ( K–type) bright giant with a stellar classification of K1II. [3] The star is around 50 [7] million years old with 7 [7] times the mass of the Sun. Having exhausted the supply of hydrogen at its core, it has expanded to roughly 56 [8] times the Sun's radius. It is radiating 1,698 [5] times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 5,173 K. [7]
The secondary, component B, appears to be a B-type main-sequence star with a stellar classification of B7V. [3] It is a suspected binary of unknown period with component masses of 3.3 and 1.2 times the mass of the Sun. [12]
References
- ^ 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. Vizier catalog entry
- ^ 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 d 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.
- ^ a b Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv: 1606.08053. Bibcode: 2006AstL...32..759G. doi: 10.1134/S1063773706110065. S2CID 119231169.
- ^ a b c d 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. Vizier catalog entry
- ^ Heintz, W.D. (1997). "Photographic astrometry of binary and proper-motion stars. VII". Astronomical Journal. 105 (3): 1188–1195. Bibcode: 1997yCat.1239....0E. doi: 10.1086/116503.
- ^ a b c d e f Tetzlaff, N.; Neuhäuser, R.; Hohle, M. M. (2011). "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun". Monthly Notices of the Royal Astronomical Society. 410 (1): 190–200. arXiv: 1007.4883. Bibcode: 2011MNRAS.410..190T. doi: 10.1111/j.1365-2966.2010.17434.x. S2CID 118629873. Vizier catalog entry
- ^ a b van Belle, G. T.; et al. (2009). "Supergiant temperatures and linear radii from near-infrared interferometry". Monthly Notices of the Royal Astronomical Society. 394 (4): 1925. arXiv: 0811.4239. Bibcode: 2009MNRAS.394.1925V. doi: 10.1111/j.1365-2966.2008.14146.x. S2CID 118372600.
- ^ Soubiran, Caroline; Le Campion, Jean-François; Brouillet, Nathalie; Chemin, Laurent (2016). "The PASTEL catalogue: 2016 version". Astronomy & Astrophysics. 591: A118. arXiv: 1605.07384. Bibcode: 2016A&A...591A.118S. doi: 10.1051/0004-6361/201628497. S2CID 119258214.
- ^ De Medeiros, J. R.; Mayor, M. (1999). "A catalog of rotational and radial velocities for evolved stars". Astronomy and Astrophysics Supplement Series. 139 (3): 433. arXiv: astro-ph/0608248. Bibcode: 1999A&AS..139..433D. doi: 10.1051/aas:1999401. Vizier catalog entry
- ^ "58 Per". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-07-23.
- ^ a b Parsons, Sidney B. (May 2004). "New and Confirmed Triple Systems with Luminous Cool Primaries and Hot Companions". The Astronomical Journal. 127 (5): 2915–2930. Bibcode: 2004AJ....127.2915P. doi: 10.1086/383546.
- ^ Batten, Alan H.; Fletcher, J. M.; MacCarthy, D. G. (1989). "Catalogue of the orbital elements of spectroscopic binary systems : 8 : 1989". Publications of the Dominion Astrophysical Observatory. 17: 1. Bibcode: 1989PDAO...17....1B.
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Perseus |
| Right ascension | 04h 36m 41.43017s [1] |
| Declination | +41° 15′ 53.3213″ [1] |
| Apparent magnitude (V) | 4.26 [2] |
| Characteristics | |
| Spectral type | K1II + B7V [3] |
| U−B color index | +0.81 [2] |
| B−V color index | +1.24 [2] |
| Astrometry | |
| Radial velocity (Rv) | +9.80 [4] km/s |
| Proper motion (μ) |
RA: −4.56
[1]
mas/
yr Dec.: −17.84 [1] mas/ yr |
| Parallax (π) | 4.09 ± 0.38 mas [1] |
| Distance | 800 ± 70
ly (240 ± 20 pc) |
| Absolute magnitude (MV) | -2.67 [5] |
| Orbit [6] | |
| Primary | 58 Persei A |
| Companion | 58 Persei B |
| Period (P) | 28.8 yr |
| Semi-major axis (a) | 0.051″ |
| Eccentricity (e) | 0.64 |
| Inclination (i) | 81° |
| Longitude of the node (Ω) | 237° |
| Periastron epoch (T) | 1978.65 |
|
Argument of periastron (ω) (secondary) | 191° |
| Details | |
| 58 Per A | |
| Mass | 6.8±0.2 [7] M☉ |
| Radius | 56±11 [8] R☉ |
| Luminosity | 1,698 [5] L☉ |
| Surface gravity (log g) | 2.21 [9] cgs |
| Temperature | 5,173±32 [7] K |
| Metallicity [Fe/H] | −0.20 [5] dex |
| Rotational velocity (v sin i) | 11.0 [10] km/s |
| Age | 50.1±6.8 [7] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
58 Persei is a binary [3] and possibly a triple [12] star system in the northern constellation of Perseus. It has the Bayer designation e Persei, while 58 Persei is the Flamsteed designation. This system is visible to the naked eye as a faint point of light with an apparent visual magnitude of 4.26. [2] It is approximately 800 light years away from the Sun based on parallax, [1] and is drifting further away with a radial velocity of +10 km/s. [4]
This is a single-lined spectroscopic binary system with an orbital period of 28.7 years and an eccentricity of 0.65. [13] The primary member, designated component A, is an orange-hued ( K–type) bright giant with a stellar classification of K1II. [3] The star is around 50 [7] million years old with 7 [7] times the mass of the Sun. Having exhausted the supply of hydrogen at its core, it has expanded to roughly 56 [8] times the Sun's radius. It is radiating 1,698 [5] times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 5,173 K. [7]
The secondary, component B, appears to be a B-type main-sequence star with a stellar classification of B7V. [3] It is a suspected binary of unknown period with component masses of 3.3 and 1.2 times the mass of the Sun. [12]
References
- ^ 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. Vizier catalog entry
- ^ 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 d 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.
- ^ a b Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv: 1606.08053. Bibcode: 2006AstL...32..759G. doi: 10.1134/S1063773706110065. S2CID 119231169.
- ^ a b c d 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. Vizier catalog entry
- ^ Heintz, W.D. (1997). "Photographic astrometry of binary and proper-motion stars. VII". Astronomical Journal. 105 (3): 1188–1195. Bibcode: 1997yCat.1239....0E. doi: 10.1086/116503.
- ^ a b c d e f Tetzlaff, N.; Neuhäuser, R.; Hohle, M. M. (2011). "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun". Monthly Notices of the Royal Astronomical Society. 410 (1): 190–200. arXiv: 1007.4883. Bibcode: 2011MNRAS.410..190T. doi: 10.1111/j.1365-2966.2010.17434.x. S2CID 118629873. Vizier catalog entry
- ^ a b van Belle, G. T.; et al. (2009). "Supergiant temperatures and linear radii from near-infrared interferometry". Monthly Notices of the Royal Astronomical Society. 394 (4): 1925. arXiv: 0811.4239. Bibcode: 2009MNRAS.394.1925V. doi: 10.1111/j.1365-2966.2008.14146.x. S2CID 118372600.
- ^ Soubiran, Caroline; Le Campion, Jean-François; Brouillet, Nathalie; Chemin, Laurent (2016). "The PASTEL catalogue: 2016 version". Astronomy & Astrophysics. 591: A118. arXiv: 1605.07384. Bibcode: 2016A&A...591A.118S. doi: 10.1051/0004-6361/201628497. S2CID 119258214.
- ^ De Medeiros, J. R.; Mayor, M. (1999). "A catalog of rotational and radial velocities for evolved stars". Astronomy and Astrophysics Supplement Series. 139 (3): 433. arXiv: astro-ph/0608248. Bibcode: 1999A&AS..139..433D. doi: 10.1051/aas:1999401. Vizier catalog entry
- ^ "58 Per". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-07-23.
- ^ a b Parsons, Sidney B. (May 2004). "New and Confirmed Triple Systems with Luminous Cool Primaries and Hot Companions". The Astronomical Journal. 127 (5): 2915–2930. Bibcode: 2004AJ....127.2915P. doi: 10.1086/383546.
- ^ Batten, Alan H.; Fletcher, J. M.; MacCarthy, D. G. (1989). "Catalogue of the orbital elements of spectroscopic binary systems : 8 : 1989". Publications of the Dominion Astrophysical Observatory. 17: 1. Bibcode: 1989PDAO...17....1B.
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