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Omicron Persei

October 21, 2023

Omicron Persei (ο Persei, abbreviated Omicron Per, ο Per) is a triple star system in the constellation of Perseus. From parallax measurements taken during the Hipparcos mission it is approximately 1,100 light-years (330 parsecs) from the Sun.

ο Persei
Location of ο Persei (circled red)
Observation data
Epoch J2000      Equinox J2000
Constellation Perseus
A
Right ascension 03h 44m 19.13377s[1]
Declination 32° 17′ 17.6874″[1]
Apparent magnitude (V) 3.83[2]
B
Right ascension 03h 44m 19.17122s[3]
Declination 32° 17′ 18.5103″[3]
Apparent magnitude (V) 6.68[4]
Characteristics
A
Spectral type B1III / B2V[5]
U−B color index -0.75[2]
B−V color index +0.05[2]
Variable type ellipsoidal[6]
Astrometry
Radial velocity (Rv)+12.20[7] km/s
Absolute magnitude (MV)−4.4[5]
A
Proper motion (μ) RA: +6.091[1] mas/yr
Dec.: −9.732[1] mas/yr
Parallax (π)3.0224 ± 0.3827 mas[1]
Distanceapprox. 1,100 ly
(approx. 330 pc)
Orbit[5]
PrimaryAa
CompanionAb
Period (P)4.4191447 days
Semi-major axis (a)33 R☉
Eccentricity (e)0.0
Inclination (i)39±15°
Semi-amplitude (K1)
(primary)		111.8 km/s
Semi-amplitude (K2)
(secondary)		155.0 km/s
Details
Aa
Mass14[8] M☉
Radius9.6[5] R☉
Surface gravity (log g)3.4[8] cgs
Temperature22,700[8] K
Rotational velocity (v sin i)70±5[5] km/s
Ab
Mass10[8] M☉
Radius8.9[5] R☉
Surface gravity (log g)4.0[8] cgs
Temperature21,000[8] K
Rotational velocity (v sin i)65±15[5] km/s
Age15[5] Myr
Other designations
Atik, 38 Persei, ADS 2726 AB, BD+31°642, CCDM J03443+3217AB, GC 4461, GSC 02359-01258, HIP 17448, HR 1131, HD 23180, SAO 56673, WDS J03443+3217AB
Database references
SIMBADdata

The system consists of a spectroscopic binary pair designated Omicron Persei A and a third companion Omicron Persei B.[9] A's two components are themselves designated Omicron Persei Aa (officially named Atik /ˈeɪtɪk/, the traditional name of the system)[10][11] and Ab.

Etymology Edit

 
ο Persei in optical light

ο Persei (Latinised to Omicron Persei) is the system's Bayer designation. The designations of the two constituents as Omicron Persei A and B, and those of A's components - Omicron Persei Aa and Ab - derive from the convention used by the Washington Multiplicity Catalog (WMC) for multiple star systems, and adopted by the International Astronomical Union (IAU).[12]

It bore the traditional name Atik (also Ati, Al Atik), Arabic for "the shoulder". Some sources attribute the name Atik to the nearby, brighter star Zeta Persei.[13][14] In 2016, the International Astronomical Union organized a Working Group on Star Names (WGSN)[15] to catalogue and standardize proper names for stars. The WGSN decided to attribute proper names to individual stars rather than entire multiple systems.[16] It approved the name Atik for the component Omicron Persei A on 12 September 2016 and it is now so included in the List of IAU-approved Star Names.[11]

In Chinese, 卷舌 (Juǎn Shé), meaning Rolled Tongue, refers to an asterism consisting of Omicron Persei, Nu Persei, Epsilon Persei, Xi Persei, Zeta Persei and 40 Persei.[17] Consequently, the Chinese name for Omicron Persei itself is 卷舌五 (Juǎn Shé wu), "the Fifth Star of Rolled Tongue".[18]

Properties Edit

 
A light curve for Omicron Persei A, plotted from TESS data[19]

Omicron Persei A is a spectroscopic binary consisting of a spectral type B1 giant and a type B2 dwarf orbiting each other every 4.4 days. The orbit is near-circular although its inclination is not precisely known. The two stars are separated by approximately 33 R☉, the exact value depending on the inclination. The primary is approximately one magnitude brighter than the secondary at visual wavelengths.[5] The binary pair forms a rotating ellipsoidal variable star, which varies in brightness from visual magnitude 3.79 to 3.88 during the orbital period.[20]

Omicron Persei lies just north of the open cluster IC 348, but is not catalogued as a member. Both IC 348 and Omicron Persei belong to the Perseus OB2 association.[21]

Culture Edit

See also Edit

References Edit

  1. ^ a b c d e Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  2. ^ a b c 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 Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  4. ^ Fabricius, C.; Høg, E.; Makarov, V. V.; Mason, B. D.; Wycoff, G. L.; Urban, S. E. (2002). "The Tycho double star catalogue". Astronomy and Astrophysics. 384: 180–189. Bibcode:2002A&A...384..180F. doi:10.1051/0004-6361:20011822.
  5. ^ a b c d e f g h i Stickland, D. J.; Lloyd, C. (1998). "Spectroscopic binary orbits from ultraviolet radial velocities. Paper 28: Omicron Persei". The Observatory. 118: 138. Bibcode:1998Obs...118..138S.
  6. ^ Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S. 1. Bibcode:2009yCat....102025S.
  7. ^ Pourbaix, D.; Tokovinin, A. A.; Batten, A. H.; Fekel, F. C.; Hartkopf, W. I.; Levato, H.; Morrell, N. I.; Torres, G.; Udry, S. (2004). "SB9: The ninth catalogue of spectroscopic binary orbits". Astronomy and Astrophysics. 424 (2): 727–732. arXiv:astro-ph/0406573. Bibcode:2004A&A...424..727P. doi:10.1051/0004-6361:20041213. S2CID 119387088.
  8. ^ a b c d e f Lyubimkov, L. S.; Rachkovskaya, T. M.; Rostopchin, S. I.; Tarasov, A. E. (1997). "The binary system o per: Orbital elements, component parameters, and helium abundance". Astronomy Reports. 41 (5): 630. Bibcode:1997ARep...41..630L.
  9. ^ "Displaying next number in catalog HIP => 17448". Multiple Star Catalog. Retrieved 2018-02-19.
  10. ^ Kunitzsch, Paul; Smart, Tim (2006). A Dictionary of Modern star Names: A Short Guide to 254 Star Names and Their Derivations (2nd rev. ed.). Cambridge, Massachusetts: Sky Pub. ISBN 978-1-931559-44-7.
  11. ^ a b "Naming Stars". IAU.org. Retrieved 16 December 2017.
  12. ^ Hessman, F. V.; Dhillon, V. S.; Winget, D. E.; Schreiber, M. R.; Horne, K.; Marsh, T. R.; Guenther, E.; Schwope, A.; Heber, U. (2010). "On the naming convention used for multiple star systems and extrasolar planets". arXiv:1012.0707 [astro-ph.SR].
  13. ^ Mullaney, James, and Tirion, Wil (2009). The Cambridge Double Star Atlas, Chart 7. University Press, Cambridge. ISBN 978-0-521-49343-7.{{cite book}}: CS1 maint: multiple names: authors list (link)
  14. ^ Your Sky Object Catalogue: Named Stars
  15. ^ IAU Working Group on Star Names (WGSN), International Astronomical Union, retrieved 22 May 2016.
  16. ^ "WG Triennial Report (2015-2018) - Star Names" (PDF). p. 5. Retrieved 2018-07-14.
  17. ^ (in Chinese) 中國星座神話, written by 陳久金. Published by 台灣書房出版有限公司, 2005, ISBN 978-986-7332-25-7.
  18. ^ (in Chinese) 香港太空館 - 研究資源 - 亮星中英對照表 2008-10-25 at the Wayback Machine, Hong Kong Space Museum. Accessed on line November 23, 2010.
  19. ^ "MAST: Barbara A. Mikulski Archive for Space Telescopes". Space Telescope Science Institute. Retrieved 8 December 2021.
  20. ^ "omi Per". The International Variable Star Index. AAVSO. Retrieved 18 December 2022.
  21. ^ Stelzer, B.; Preibisch, T.; Alexander, F.; Mucciarelli, P.; Flaccomio, E.; Micela, G.; Sciortino, S. (2012). "X-ray view of IC 348 in the light of an updated cluster census". Astronomy and Astrophysics. 537: A135. arXiv:1111.4420. Bibcode:2012A&A...537A.135S. doi:10.1051/0004-6361/201118118.
  22. ^ "Omicron Persei 8 meaning explored as hilarious Futurama memes spread". The Focus. 30 November 2021. Retrieved 9 October 2022.
  23. ^ "How Futurama is related to the new Omicron COVID variant". MARCA. 28 November 2021. Retrieved 9 October 2022.

External links Edit

  • Atik

October 21, 2023
omicron, persei, persei, abbreviated, omicron, triple, star, system, constellation, perseus, from, parallax, measurements, taken, during, hipparcos, mission, approximately, light, years, parsecs, from, perseilocation, persei, circled, observation, dataepoch, j. Omicron Persei o Persei abbreviated Omicron Per o Per is a triple star system in the constellation of Perseus From parallax measurements taken during the Hipparcos mission it is approximately 1 100 light years 330 parsecs from the Sun o PerseiLocation of o Persei circled red Observation dataEpoch J2000 Equinox J2000Constellation PerseusARight ascension 03h 44m 19 13377s 1 Declination 32 17 17 6874 1 Apparent magnitude V 3 83 2 BRight ascension 03h 44m 19 17122s 3 Declination 32 17 18 5103 3 Apparent magnitude V 6 68 4 CharacteristicsASpectral type B1III B2V 5 U B color index 0 75 2 B V color index 0 05 2 Variable type ellipsoidal 6 AstrometryRadial velocity Rv 12 20 7 km sAbsolute magnitude MV 4 4 5 AProper motion m RA 6 091 1 mas yr Dec 9 732 1 mas yrParallax p 3 0224 0 3827 mas 1 Distanceapprox 1 100 ly approx 330 pc Orbit 5 PrimaryAaCompanionAbPeriod P 4 4191447 daysSemi major axis a 33 R Eccentricity e 0 0Inclination i 39 15 Semi amplitude K1 primary 111 8 km sSemi amplitude K2 secondary 155 0 km sDetailsAaMass14 8 M Radius9 6 5 R Surface gravity log g 3 4 8 cgsTemperature22 700 8 KRotational velocity v sin i 70 5 5 km sAbMass10 8 M Radius8 9 5 R Surface gravity log g 4 0 8 cgsTemperature21 000 8 KRotational velocity v sin i 65 15 5 km sAge15 5 MyrOther designationsAtik 38 Persei ADS 2726 AB BD 31 642 CCDM J03443 3217AB GC 4461 GSC 02359 01258 HIP 17448 HR 1131 HD 23180 SAO 56673 WDS J03443 3217ABDatabase referencesSIMBADdataThe system consists of a spectroscopic binary pair designated Omicron Persei A and a third companion Omicron Persei B 9 A s two components are themselves designated Omicron Persei Aa officially named Atik ˈ eɪ t ɪ k the traditional name of the system 10 11 and Ab Contents 1 Etymology 2 Properties 3 Culture 4 See also 5 References 6 External linksEtymology Edit nbsp o Persei in optical lighto Persei Latinised to Omicron Persei is the system s Bayer designation The designations of the two constituents as Omicron Persei A and B and those of A s components Omicron Persei Aa and Ab derive from the convention used by the Washington Multiplicity Catalog WMC for multiple star systems and adopted by the International Astronomical Union IAU 12 It bore the traditional name Atik also Ati Al Atik Arabic for the shoulder Some sources attribute the name Atik to the nearby brighter star Zeta Persei 13 14 In 2016 the International Astronomical Union organized a Working Group on Star Names WGSN 15 to catalogue and standardize proper names for stars The WGSN decided to attribute proper names to individual stars rather than entire multiple systems 16 It approved the name Atik for the component Omicron Persei A on 12 September 2016 and it is now so included in the List of IAU approved Star Names 11 In Chinese 卷舌 Juǎn She meaning Rolled Tongue refers to an asterism consisting of Omicron Persei Nu Persei Epsilon Persei Xi Persei Zeta Persei and 40 Persei 17 Consequently the Chinese name for Omicron Persei itself is 卷舌五 Juǎn She wu the Fifth Star of Rolled Tongue 18 Properties Edit nbsp A light curve for Omicron Persei A plotted from TESS data 19 Omicron Persei A is a spectroscopic binary consisting of a spectral type B1 giant and a type B2 dwarf orbiting each other every 4 4 days The orbit is near circular although its inclination is not precisely known The two stars are separated by approximately 33 R the exact value depending on the inclination The primary is approximately one magnitude brighter than the secondary at visual wavelengths 5 The binary pair forms a rotating ellipsoidal variable star which varies in brightness from visual magnitude 3 79 to 3 88 during the orbital period 20 Omicron Persei lies just north of the open cluster IC 348 but is not catalogued as a member Both IC 348 and Omicron Persei belong to the Perseus OB2 association 21 Culture EditIn the TV series Futurama the fictional planet Omicron Persei 8 is home to medicinal plants and large aliens who often attack Earth 22 23 The USS Atik was a ship of the United States Navy See also EditStars and planetary systems in fictionReferences Edit a b c d e Brown A G A et al Gaia collaboration 2021 Gaia Early Data Release 3 Summary of the contents and survey properties Astronomy amp Astrophysics 649 A1 arXiv 2012 01533 Bibcode 2021A amp A 649A 1G doi 10 1051 0004 6361 202039657 S2CID 227254300 Erratum doi 10 1051 0004 6361 202039657e Gaia EDR3 record for this source at VizieR a b c 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 Brown A G A et al Gaia collaboration 2021 Gaia Early Data Release 3 Summary of the contents and survey properties Astronomy amp Astrophysics 649 A1 arXiv 2012 01533 Bibcode 2021A amp A 649A 1G doi 10 1051 0004 6361 202039657 S2CID 227254300 Erratum doi 10 1051 0004 6361 202039657e Gaia EDR3 record for this source at VizieR Fabricius C Hog E Makarov V V Mason B D Wycoff G L Urban S E 2002 The Tycho double star catalogue Astronomy and Astrophysics 384 180 189 Bibcode 2002A amp A 384 180F doi 10 1051 0004 6361 20011822 a b c d e f g h i Stickland D J Lloyd C 1998 Spectroscopic binary orbits from ultraviolet radial velocities Paper 28 Omicron Persei The Observatory 118 138 Bibcode 1998Obs 118 138S Samus N N Durlevich O V et al 2009 VizieR Online Data Catalog General Catalogue of Variable Stars Samus 2007 2013 VizieR On line Data Catalog B GCVS Originally Published in 2009yCat 102025S 1 Bibcode 2009yCat 102025S Pourbaix D Tokovinin A A Batten A H Fekel F C Hartkopf W I Levato H Morrell N I Torres G Udry S 2004 SB9 The ninth catalogue of spectroscopic binary orbits Astronomy and Astrophysics 424 2 727 732 arXiv astro ph 0406573 Bibcode 2004A amp A 424 727P doi 10 1051 0004 6361 20041213 S2CID 119387088 a b c d e f Lyubimkov L S Rachkovskaya T M Rostopchin S I Tarasov A E 1997 The binary system o per Orbital elements component parameters and helium abundance Astronomy Reports 41 5 630 Bibcode 1997ARep 41 630L Displaying next number in catalog HIP gt 17448 Multiple Star Catalog Retrieved 2018 02 19 Kunitzsch Paul Smart Tim 2006 A Dictionary of Modern star Names A Short Guide to 254 Star Names and Their Derivations 2nd rev ed Cambridge Massachusetts Sky Pub ISBN 978 1 931559 44 7 a b Naming Stars IAU org Retrieved 16 December 2017 Hessman F V Dhillon V S Winget D E Schreiber M R Horne K Marsh T R Guenther E Schwope A Heber U 2010 On the naming convention used for multiple star systems and extrasolar planets arXiv 1012 0707 astro ph SR Mullaney James and Tirion Wil 2009 The Cambridge Double Star Atlas Chart 7 University Press Cambridge ISBN 978 0 521 49343 7 a href Template Cite book html title Template Cite book cite book a CS1 maint multiple names authors list link Your Sky Object Catalogue Named Stars IAU Working Group on Star Names WGSN International Astronomical Union retrieved 22 May 2016 WG Triennial Report 2015 2018 Star Names PDF p 5 Retrieved 2018 07 14 in Chinese 中國星座神話 written by 陳久金 Published by 台灣書房出版有限公司 2005 ISBN 978 986 7332 25 7 in Chinese 香港太空館 研究資源 亮星中英對照表 Archived 2008 10 25 at the Wayback Machine Hong Kong Space Museum Accessed on line November 23 2010 MAST Barbara A Mikulski Archive for Space Telescopes Space Telescope Science Institute Retrieved 8 December 2021 omi Per The International Variable Star Index AAVSO Retrieved 18 December 2022 Stelzer B Preibisch T Alexander F Mucciarelli P Flaccomio E Micela G Sciortino S 2012 X ray view of IC 348 in the light of an updated cluster census Astronomy and Astrophysics 537 A135 arXiv 1111 4420 Bibcode 2012A amp A 537A 135S doi 10 1051 0004 6361 201118118 Omicron Persei 8 meaning explored as hilarious Futurama memes spread The Focus 30 November 2021 Retrieved 9 October 2022 How Futurama is related to the new Omicron COVID variant MARCA 28 November 2021 Retrieved 9 October 2022 External links EditAtik Retrieved from https en wikipedia org w index php title Omicron Persei amp oldid 1175053831, wikipedia, wiki, book, books, library,

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