To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

How to transfigure the Wikipedia

Would you like Wikipedia to always look as professional and up-to-date? We have created a browser extension. It will enhance any encyclopedic page you visit with the magic of the WIKI 2 technology.

Try it — you can delete it anytime.

Install in 5 seconds
4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
Languages
Recent
Show all languages
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
Great Wikipedia has got greater.
.
Leo
Newton
Brights
Milds

58 Persei

From Wikipedia, the free encyclopedia

This article is about e Persei. It is not to be confused with ε (epsilon) Persei.
58 Persei
Location of 58 Persei (circled)
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]
Distance800 ± 70 ly
(240 ± 20 pc)
Absolute magnitude (MV)-2.67[5]
Orbit[6]
Primary58 Persei A
Companion58 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
Mass6.8±0.2[7] M☉
Radius56±11[8] R☉
Luminosity1,698[5] L☉
Surface gravity (log g)2.21[9] cgs
Temperature5,173±32[7] K
Metallicity [Fe/H]−0.20[5] dex
Rotational velocity (v sin i)11.0[10] km/s
Age50.1±6.8[7] Myr
Other designations
Boss 1074, 58 Per, BD+40°1000, FK5 2338, GC 5609, HD 29094–95, HIP 21476, HR 1454, SAO 39639, CCDM J04367+4116A[11]
Database references
SIMBADdata

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

  1. ^ 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
  2. ^ 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.
  3. ^ 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.
  4. ^ 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.
  5. ^ 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
  6. ^ 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.
  7. ^ 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
  8. ^ 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.
  9. ^ 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.
  10. ^ 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
  11. ^ "58 Per". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-07-23.
  12. ^ 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.
  13. ^ 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.
This page was last edited on 29 October 2023, at 03:54
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.
Contact WIKI 2
Introduction
Terms of Service
Privacy Policy