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Delta1 Canis Minoris

October 21, 2023

For other stars with this Bayer designation, see δ Canis Minoris.

Delta1 Canis Minoris, Latinized from δ1 Canis Minoris, is a solitary,[11] yellow-white hued star in the constellation Canis Minor. It is faintly visible to the naked eye with an apparent visual magnitude of +5.25.[2] Based upon an annual parallax shift of 4.29 mas as seen from Earth,[1] this star is located roughly 760 light years from the Sun.

δ1 Canis Minoris
Location of δ1 Canis Minoris (circled)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Canis Minor
Right ascension 07h 32m 05.94912s[1]
Declination +01° 54′ 52.1263″[1]
Apparent magnitude (V) +5.25[2]
Characteristics
Spectral type F0 V[3] or F0 III[4]
U−B color index +0.20[2]
B−V color index +0.22[2]
Astrometry
Radial velocity (Rv)+29.1±2.8[5] km/s
Proper motion (μ) RA: −1.64[1] mas/yr
Dec.: −1.10[1] mas/yr
Parallax (π)4.29 ± 0.27 mas[1]
Distance760 ± 50 ly
(230 ± 10 pc)
Absolute magnitude (MV)−1.59[6]
Details
Luminosity319[7] L☉
Surface gravity (log g)3.64±0.09[8] cgs
Temperature7,623±86[8] K
Metallicity [Fe/H]+0.15±0.05[8] dex
Rotational velocity (v sin i)50[9] km/s
Other designations
δ1 CMi, 7 CMi, BD+02°1691, FK5 2587, GC 10085, HD 59881, HIP 36641, HR 2880, SAO 115581[10]
Database references
SIMBADdata

Houk and Swift (1999) list a stellar classification of F0 V[3] for Delta1 Canis Minoris, indicating it is an F-type main-sequence star. However, Cowley et al. (1969) gave it a class of F0 III, which would suggest it is instead an evolved giant star.[4] The spectrum displays a higher than solar metallicity – a term indicating the abundance of elements other than hydrogen and helium compared to the Sun. The star is spinning with a projected rotational velocity of 50[9] km/s and is radiating 319[7] times the Sun's luminosity from its photosphere at an effective temperature of 7,623 K.[8]

References Edit

  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.
  2. ^ a b c d Johnson, H. L.; et al. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory, 4 (99): 99, Bibcode:1966CoLPL...4...99J.
  3. ^ a b Houk, N.; Swift, C. (1999), "Michigan catalogue of two-dimensional spectral types for the HD Stars", Michigan Spectral Survey, 5, Bibcode:1999MSS...C05....0H.
  4. ^ a b Cowley, A.; et al. (April 1969), "A study of the bright A stars. I. A catalogue of spectral classifications", Astronomical Journal, 74: 375–406, Bibcode:1969AJ.....74..375C, doi:10.1086/110819.
  5. ^ 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.
  6. ^ 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.
  7. ^ a b McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society, 427 (1): 343–57, arXiv:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x, S2CID 118665352.
  8. ^ a b c d Prugniel, Ph.; et al. (2011), "The atmospheric parameters and spectral interpolator for the MILES stars", Astronomy & Astrophysics, 531: 25, arXiv:1104.4952, Bibcode:2011A&A...531A.165P, doi:10.1051/0004-6361/201116769, S2CID 54940439, A165.
  9. ^ a b Jasniewicz, G.; et al. (July 2006), "Lithium abundances for early F stars: new observational constraints for the Li dilution", Astronomy and Astrophysics, 453 (2): 717–722, Bibcode:2006A&A...453..717J, doi:10.1051/0004-6361:20054421.
  10. ^ "del01 CMi". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-09-03.{{cite web}}: CS1 maint: postscript (link)
  11. ^ 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.

External links Edit

  • Kaler, Jim, "Eta and Delta-1 CMi", Stars, University of Illinois, retrieved 22 August 2012

October 21, 2023
delta1, canis, minoris, other, stars, with, this, bayer, designation, canis, minoris, latinized, from, canis, minoris, solitary, yellow, white, hued, star, constellation, canis, minor, faintly, visible, naked, with, apparent, visual, magnitude, based, upon, an. For other stars with this Bayer designation see d Canis Minoris Delta1 Canis Minoris Latinized from d1 Canis Minoris is a solitary 11 yellow white hued star in the constellation Canis Minor It is faintly visible to the naked eye with an apparent visual magnitude of 5 25 2 Based upon an annual parallax shift of 4 29 mas as seen from Earth 1 this star is located roughly 760 light years from the Sun d1 Canis MinorisLocation of d1 Canis Minoris circled Observation dataEpoch J2000 0 Equinox J2000 0 ICRS Constellation Canis MinorRight ascension 07h 32m 05 94912s 1 Declination 01 54 52 1263 1 Apparent magnitude V 5 25 2 CharacteristicsSpectral type F0 V 3 or F0 III 4 U B color index 0 20 2 B V color index 0 22 2 AstrometryRadial velocity Rv 29 1 2 8 5 km sProper motion m RA 1 64 1 mas yr Dec 1 10 1 mas yrParallax p 4 29 0 27 mas 1 Distance760 50 ly 230 10 pc Absolute magnitude MV 1 59 6 DetailsLuminosity319 7 L Surface gravity log g 3 64 0 09 8 cgsTemperature7 623 86 8 KMetallicity Fe H 0 15 0 05 8 dexRotational velocity v sin i 50 9 km sOther designationsd1 CMi 7 CMi BD 02 1691 FK5 2587 GC 10085 HD 59881 HIP 36641 HR 2880 SAO 115581 10 Database referencesSIMBADdataHouk and Swift 1999 list a stellar classification of F0 V 3 for Delta1 Canis Minoris indicating it is an F type main sequence star However Cowley et al 1969 gave it a class of F0 III which would suggest it is instead an evolved giant star 4 The spectrum displays a higher than solar metallicity a term indicating the abundance of elements other than hydrogen and helium compared to the Sun The star is spinning with a projected rotational velocity of 50 9 km s and is radiating 319 7 times the Sun s luminosity from its photosphere at an effective temperature of 7 623 K 8 References Edit 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 amp A 474 653V doi 10 1051 0004 6361 20078357 S2CID 18759600 a b c d Johnson H L et al 1966 UBVRIJKL photometry of the bright stars Communications of the Lunar and Planetary Laboratory 4 99 99 Bibcode 1966CoLPL 4 99J a b Houk N Swift C 1999 Michigan catalogue of two dimensional spectral types for the HD Stars Michigan Spectral Survey 5 Bibcode 1999MSS C05 0H a b Cowley A et al April 1969 A study of the bright A stars I A catalogue of spectral classifications Astronomical Journal 74 375 406 Bibcode 1969AJ 74 375C doi 10 1086 110819 de Bruijne J H J Eilers A C October 2012 Radial velocities for the HIPPARCOS Gaia Hundred Thousand Proper Motion project Astronomy amp Astrophysics 546 14 arXiv 1208 3048 Bibcode 2012A amp 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 McDonald I et al 2012 Fundamental Parameters and Infrared Excesses of Hipparcos Stars Monthly Notices of the Royal Astronomical Society 427 1 343 57 arXiv 1208 2037 Bibcode 2012MNRAS 427 343M doi 10 1111 j 1365 2966 2012 21873 x S2CID 118665352 a b c d Prugniel Ph et al 2011 The atmospheric parameters and spectral interpolator for the MILES stars Astronomy amp Astrophysics 531 25 arXiv 1104 4952 Bibcode 2011A amp A 531A 165P doi 10 1051 0004 6361 201116769 S2CID 54940439 A165 a b Jasniewicz G et al July 2006 Lithium abundances for early F stars new observational constraints for the Li dilution Astronomy and Astrophysics 453 2 717 722 Bibcode 2006A amp A 453 717J doi 10 1051 0004 6361 20054421 del01 CMi SIMBAD Centre de donnees astronomiques de Strasbourg Retrieved 2017 09 03 a href Template Cite web html title Template Cite web cite web a CS1 maint postscript link 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 External links EditKaler Jim Eta and Delta 1 CMi Stars University of Illinois retrieved 22 August 2012 Retrieved from https en wikipedia org w index php title Delta1 Canis Minoris amp oldid 1079514773, wikipedia, wiki, book, books, library,

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