21 Leonis Minoris: Perbedaan antara revisi

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{{Starbox begin
|name=21 Leonis Minoris}}
{{Starbox observe
|constell=[[Leo Minor]]
|epoch=[[J2000]]
|ra={{RA|10|07|25.76296}}<ref name=HIP>{{cite journal|title=Validation of the new Hipparcos reduction|url=http://www.aanda.org/index.php?option=com_article&access=bibcode&Itemid=129&bibcode=2007A%2526A...474..653VFUL|author1=van Leeuwen, F.|display-authors=etal|journal=Astronomy and Astrophysics|volume=474|issue=2|pages=653–664|date=2007|arxiv=0708.1752|bibcode=2007A&A...474..653V|doi=10.1051/0004-6361:20078357}}</ref>
|dec={{DEC|+35|14|40.8965}}<ref name=HIP/>
|appmag_v=4,47 - 4,52<ref name=GCVS/>
}}
{{Starbox character
|class=A7V<ref>{{cite journal|doi=10.1086/145697|title=Fundamental stellar photometry for standards of spectral type on the revised system of the Yerkes spectral atlas|journal=The Astrophysical Journal|volume=117|pages=313|year=1953|last1=Johnson|first1=H. L.|last2=Morgan|first2=W. W.|bibcode = 1953ApJ...117..313J }}</ref>
|b-v=+0,18<ref name=UBV>{{cite journal|title=UBVRIJKL Photometry of the Bright Stars|author1=Johnson, H. L.|journal=Communications of the Lunar and Planetary Laboratory|volume=4|pages=99|date=1966|bibcode=1966CoLPL...4...99J}}</ref>
|u-b=+0,08<ref name=UBV/>
|variable=[[Delta Scuti variable|&delta; Sct]]<ref name=GCVS/>
}}
{{Starbox astrometry
|radial_v=&minus;11,40 ± 0,9<ref name=RV>{{cite journal|url=http://adsabs.harvard.edu/abs/2006AstL...32..759G|title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system|author=Gontcharov, G. A.|date=2006|journal=Astronomy Letters|volume=32|issue=11|pages=759–771|bibcode=2006AstL...32..759G|doi=10.1134/S1063773706110065|arxiv=1606.08053|accessdate=12 December 2016}}</ref>
|prop_mo_ra=52,90<ref name=HIP/>
|prop_mo_dec=0,62<ref name=HIP/>
|parallax=35.41
|p_error=0.18
|parallax_footnote=<ref name=HIP/>
|absmag_v=+2,43<ref name=Eggen1998>{{citation | title=The Sirius Supercluster and Missing Mass near the Sun | last1=Eggen | first1=Olin J. | journal=The Astronomical Journal | postscript=. | volume=116 | issue=2 | pages=782–788 | date=August 1998 | doi=10.1086/300465 | bibcode=1998AJ....116..782E }}</ref>
}}
{{Starbox detail
|age_myr=390<ref name=Rieke>{{cite journal|doi=10.1086/426937|title=Decay of Planetary Debris Disks|journal=The Astrophysical Journal|volume=620|issue=2|pages=1010|year=2005|last1=Rieke|first1=G. H.|last2=Su|first2=K. Y. L.|last3=Stansberry|first3=J. A.|last4=Trilling|first4=D.|last5=Bryden|first5=G.|last6=Muzerolle|first6=J.|last7=White|first7=B.|last8=Gorlova|first8=N.|last9=Young|first9=E. T.|last10=Beichman|first10=C. A.|last11=Stapelfeldt|first11=K. R.|last12=Hines|first12=D. C.|bibcode = 2005ApJ...620.1010R |citeseerx=10.1.1.579.8956}}</ref>
|rotational_velocity=155<ref name=Rieke/>
|temperature=7839<ref name=Gray>{{cite journal|doi=10.1086/378365|title=Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I|journal=The Astronomical Journal|volume=126|issue=4|pages=2048|year=2003|last1=Gray|first1=R. O.|last2=Corbally|first2=C. J.|last3=Garrison|first3=R. F.|last4=McFadden|first4=M. T.|last5=Robinson|first5=P. E.|arxiv = astro-ph/0308182 |bibcode = 2003AJ....126.2048G }}</ref>
|gravity=4,07<ref name=Gray/>
|metal_fe=[M/H] {{=}} &minus;0.01<ref name=Gray/>
|radius=1,2–1,8<ref>{{cite journal|display-authors=1|author1=Pasinetti Fracassini, L. E.|author2=Pastori, L.|author3=Covino, S.|author4=Pozzi, A.|title=Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics|journal=Astronomy & Astrophysics|volume=367|issue=2|pages=521–24|date=2001|bibcode=2001A&A...367..521P|doi=10.1051/0004-6361:20000451|arxiv=astro-ph/0012289}}</ref>
}}
{{Starbox catalog
|names=[[Flamsteed designation|21]]&nbsp;LMi, [[Bonner Durchmusterung|BD]]+35°&nbsp;2110, [[Henry Draper Catalogue|HD]]&nbsp;87696, [[Hipparcos catalogue|HIP]]&nbsp;49593, [[Bright Star Catalog|HR]]&nbsp;3974, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]]&nbsp;61874, [[Gliese Catalogue of Nearby Stars|Gl]]&nbsp;378.3, [[Gliese-Jahreiss Catalogue|GJ]]&nbsp;9314<ref name=SIMBAD>{{cite simbad|title=* 21 LMi|accessdate=22 March 2017}}</ref>
}}
{{Starbox reference
|Simbad=21+LMi
}}
{{Starbox end}}
'''21 Leonis Minoris''' adalah salah satu bintang di rasi [[Leo Minor]]. Bintang ini memiliki [[magnitudo]] 4.49. Bintang ini berada pada jarak 91 tahun cahaya dari Bumi.
'''21 Leonis Minoris''' adalah salah satu bintang di rasi [[Leo Minor]]. Bintang ini memiliki [[magnitudo]] 4.49. Bintang ini berada pada jarak 91 tahun cahaya dari Bumi.


Revisi per 21 Mei 2018 21.19

21 Leonis Minoris
Data pengamatan
Epos J2000      Ekuinoks J2000
Rasi bintang Leo Minor
Asensio rekta  10j 07m 25.76296d[1]
Deklinasi  +35° 14′ 40.8965″[1]
Magnitudo tampak (V) 4,47 - 4,52[2]
Ciri-ciri
Kelas spektrum A7V[3]
Indeks warna U−B +0,08[4]
Indeks warna B−V +0,18[4]
Jenis variabel δ Sct[2]
Astrometri
Kecepatan radial (Rv)−11,40 ± 0,9[5] km/s
Gerak diri (μ) RA: 52,90[1] mdb/thn
Dek.: 0,62[1] mdb/thn
Paralaks (π)35,41±0,18[1] mdb
Jarak92,1 ± 0,5 tc
(28,2 ± 0,1 pc)
Magnitudo mutlak (MV)+2,43[6]
Detail
Radius1,2–1,8[7] R☉
Gravitasi permukaan (log g)4,07[8]
Suhu7839[8] K
Metalisitas [Fe/H][M/H] = −0.01[8]
Kecepatan rotasi (v sin i)155[9] km/s
Usia390[9] megatahun
Penamaan lain
21 LMi, BD+35° 2110, HD 87696, HIP 49593, HR 3974, SAO 61874, Gl 378.3, GJ 9314[10]
Referensi basis data
SIMBADdata

21 Leonis Minoris adalah salah satu bintang di rasi Leo Minor. Bintang ini memiliki magnitudo 4.49. Bintang ini berada pada jarak 91 tahun cahaya dari Bumi.

Etimologi

Nama lainnya untuk bintang ini adalah:

nama lain asal bahasa arti
內平二 / Nèipíngèr Tiongkok bintang kedua pada rasi Hakim Tinggi[11]

Selain rasi Aquarius, bintang ini juga merupakan anggota dari berbagai rasi, asterisma atau kelompok berikut :

nama rasi / asterisma / kelompok asal arti anggota lainnya
內平 / Nèipíng Tiongkok Hakim Tinggi 13 LMi
Sirius Supercluster HD 13594, 5 Aql, δ Aqr, 32 Aqr, β Aur, 45 Boo, χ Cet, α CMa, 6 CMi, δ Col, 29 Com, α CrB, υ CrB, ζ Crt, HD 209515, HD 184960, δ Del, 59 Dra, HD 129798, β Eri, ζ Eri, HD 157740, υ1 Hya, HD 109799, ζ Leo, τ Leo, γ Lep, RR Lyn, α Oph , HD 65810, HD 178428, HD 165185, β Ser, HD 26923, HD 111456, ζ TrA, 37 UMa, β UMa, γ UMa, δ UMa, ε UMa, 78 UMa, ζ UMa, 80 UMa, o Vir, α Vol.[12][13]
Ursa Major Moving Group[14] (core star antara lain) : 37 UMa, β UMa, γ UMa, δ UMa, ε UMa, 78 UMa, ζ UMa, 80 UMa

stream star : δ Aqr, β Aur, ζ Boo, 18 Boo, χ Cet A, 29 Com, ζ Crt, α CrB, 59 Dra, γ Lep, 16 Lyr, γ Mic, χ1 Ori, 89 Psc, β Ser, ω Ser, τ6 Ser, 6 Sex, 66 Tau, ζ TrA, π1 UMa, 41 Vir

Referensi

  1. ^ a b c d e van Leeuwen, F.; et al. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752 alt=Dapat diakses gratis. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. 
  2. ^ a b Kesalahan pengutipan: Tag <ref> tidak sah; tidak ditemukan teks untuk ref bernama GCVS
  3. ^ Johnson, H. L.; Morgan, W. W. (1953). "Fundamental stellar photometry for standards of spectral type on the revised system of the Yerkes spectral atlas". The Astrophysical Journal. 117: 313. Bibcode:1953ApJ...117..313J. doi:10.1086/145697. 
  4. ^ a b Johnson, H. L. (1966). "UBVRIJKL Photometry of the Bright Stars". Communications of the Lunar and Planetary Laboratory. 4: 99. Bibcode:1966CoLPL...4...99J. 
  5. ^ 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 alt=Dapat diakses gratis. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. Diakses tanggal 12 December 2016. 
  6. ^ Eggen, Olin J. (August 1998), "The Sirius Supercluster and Missing Mass near the Sun", The Astronomical Journal, 116 (2): 782–788, Bibcode:1998AJ....116..782E, doi:10.1086/300465. 
  7. ^ Pasinetti Fracassini, L. E.; et al. (2001). "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics". Astronomy & Astrophysics. 367 (2): 521–24. arXiv:astro-ph/0012289 alt=Dapat diakses gratis. Bibcode:2001A&A...367..521P. doi:10.1051/0004-6361:20000451. 
  8. ^ a b c Gray, R. O.; Corbally, C. J.; Garrison, R. F.; McFadden, M. T.; Robinson, P. E. (2003). "Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I". The Astronomical Journal. 126 (4): 2048. arXiv:astro-ph/0308182 alt=Dapat diakses gratis. Bibcode:2003AJ....126.2048G. doi:10.1086/378365. 
  9. ^ a b Rieke, G. H.; Su, K. Y. L.; Stansberry, J. A.; Trilling, D.; Bryden, G.; Muzerolle, J.; White, B.; Gorlova, N.; Young, E. T.; Beichman, C. A.; Stapelfeldt, K. R.; Hines, D. C. (2005). "Decay of Planetary Debris Disks". The Astrophysical Journal. 620 (2): 1010. Bibcode:2005ApJ...620.1010R. CiteSeerX 10.1.1.579.8956 alt=Dapat diakses gratis. doi:10.1086/426937. 
  10. ^ "* 21 LMi". SIMBAD. Centre de données astronomiques de Strasbourg. Diakses tanggal 22 March 2017. 
  11. ^ salah satu rasi bintang menurut bangsa Tiongkok
  12. ^ Eggen, Olin J. (1992). "The Sirius supercluster in the FK5". Astronomical Journal. 104 (4): 1493–1504. doi:10.1086/116334. Diakses tanggal 2007-11-22. 
  13. ^ http://articles.adsabs.harvard.edu/full/1983AJ.....88..642E
  14. ^ bintang ini termasuk stream star
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