Stein 2051

Stein 2051
	; Image of Stein 2051 B and a background star taken by the Hubble Space Telescope.; Credit: NASA, ESA, and K. Sahu (STScI)
Observation data; EpochJ2000EquinoxJ2000
Constellation	Camelopardalis
	Stein 2051 A
Right ascension	04h 31m 11.5181s
Declination	+58° 58′ 37.461″
Apparent magnitude (V)	10.977
	Stein 2051 B
Right ascension	04h 31m 12.570s
Declination	+58° 58′ 41.15″
Apparent magnitude (V)	11.19
Characteristics
Stein 2051 A
Spectral type	M4.0Ve
U−B color index	+1.21
B−V color index	+1.65
Stein 2051 B
Spectral type	DC5
U−B color index	-0.53
B−V color index	+0.31
Astrometry
Stein 2051 A
Radial velocity (Rv)	29 km/s
Proper motion (μ)	RA: 1300.365 mas/yr ; Dec.: -2046.106 mas/yr
Parallax (π)	181.2438 ± 0.0499 mas
Distance	17.995 ± 0.005 ly ; (5.517 ± 0.002 pc)
Stein 2051 B
Radial velocity (Rv)	2.0 km/s
Proper motion (μ)	RA:1334.780±0.021mas/yr ; Dec.:−1947.638±0.019mas/yr
Parallax (π)	181.2730 ± 0.0203 mas
Distance	17.993 ± 0.002 ly ; (5.5165 ± 0.0006 pc)
Details
Stein 2051 A
Mass	0.252±0.013 M☉
Radius	0.292±0.031 R☉
Luminosity	0.0081 L☉
Surface gravity (log g)	4.80+0.13; −0.10 cgs
Temperature	3277+42; −75 K
Metallicity [Fe/H]	0.26+0.06; −0.22 dex
Rotational velocity (v sin i)	5.2+1.7; −2.7 km/s
Stein 2051 B
Other designations
	Stein 2051, G 175-34, HIP 21088, WDS J04312+5858AB, GJ 169.1, PLX 986.01
	Stein 2051 A: LHS 26, NLTT 13373, TYC 3744-412-1, 2MASS J04311147+585837, WISE J043113.20+585816.7
	Stein 2051 B: EGGR 180, LHS 27, NLTT 13375, TYC 3744-2062-1, 2MASS J04311201+5858476, WD 0426+58, WD2 0426+585, WD3 0426+588
Database references
SIMBAD	The system
	A
	B
	Stein 2051 Location of Stein 2051 in the constellation Camelopardalis;

Coordinates: 04^h 31^m 11.52059^s, +58° 58′ 37.4806″

Stein 2051 (Gliese 169.1, G 175-034, LHS 26/27) is a nearby binary star system, containing a red dwarf (component A) and a degenerate star (white dwarf) (component B), located in constellation Camelopardalis at about 18 ly from Earth.^[11]

스타인 2051은 가장 가까운 별자리 쌍성계(적색 왜성+백색 왜성)이다(기원전 40 에리다니는 16.26광년 ^[12]거리에 있지만 삼중성계의 일부이다).

스타인 2051 B는 시리우스 B, 프로키온 B, 반 마넨의 별 LP 145-141 및 에리다니 B에 이어 여섯 번째로 가까운 백색왜성이다.

특성.

이 두 별 중 더 밝은 별은 A(빨간색 왜성)이지만 더 무거운 것은 B(흰색 왜성)입니다.

2017년 스타인 2051 B가 더 먼 별 앞을 지나가는 것이 관측되었다.별빛이 가까운 별의 중력장에 의해 휘어지면서 질량을 직접 측정할 수 있게 되었다.스타인 2051 B의 추정 질량은 0.675±0.051M으로_☉ 탄소-산소 ^[13]핵을 가진 백색왜성의 예상 범위와 일치한다.

레퍼런스

^ "Einstein revisited". www.spacetelescope.org. Retrieved 12 June 2017.
^ ^a ^b ^c ^d ^e "NAME Stein 2051 A". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 26 December 2016.
^ ^a ^b ^c ^d ^e "NAME Stein 2051 B". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 20 December 2016.
^ ^a ^b ^c ^d Hardie, R. H. (1966). "UBV Photometry of the Lowell Proper Motion Object G175-34". Publications of the Astronomical Society of the Pacific. 78 (462): 171. Bibcode:1966PASP...78..171H. doi:10.1086/128321.
^ ^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. (에라타: doi :10.1051/0004-6361/202039657e).VizieR에서 이 소스에 대한 Gaia EDR3 레코드.
^ ^a ^b ^c 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. (에라타: doi :10.1051/0004-6361/202039657e).VizieR에서 이 소스에 대한 Gaia EDR3 레코드.
^ The CARMENES search for exoplanets around M dwarfs A deep learning approach to determine fundamental parameters of target stars, 2020, arXiv:2008.01186
^ ^a ^b ^c Understanding Physical Properties of Young M-dwarfs: NIR spectroscopic studies, 2020, arXiv:2002.05762
^ Perryman; et al. (1997). "HIP 21088". The Hipparcos and Tycho Catalogues. Retrieved 2014-11-23.
^ Gliese, W. & Jahreiß, H. (1991). "Gl 169.1". Preliminary Version of the Third Catalogue of Nearby Stars. Retrieved 2014-11-23.
^ ^a ^b Van Altena W. F.; Lee J. T.; Hoffleit E. D. (1995). "GCTP 986.01". The General Catalogue of Trigonometric Stellar Parallaxes (Fourth ed.). Retrieved 2014-11-23.
^ Perryman; et al. (1997). "HIP 19849". The Hipparcos and Tycho Catalogues. Retrieved 2014-11-21.
^ Sahu, Kailash C.; et al. (June 2017), "Relativistic deflection of background starlight measures the mass of a nearby white dwarf star", Science, 356 (6342): 1046–1050, arXiv:1706.02037, Bibcode:2017Sci...356.1046S, doi:10.1126/science.aal2879, PMID 28592430, S2CID 206654918.

외부 링크

"CCDM J04312+5858AB -- Double or multiple star". Centre de Données astronomiques de Strasbourg. Retrieved 2012-01-02. (시스템 전체)
"NAME STEIN 2051A -- Star in double system". Centre de Données astronomiques de Strasbourg. Retrieved 2012-01-02. (컴포넌트 A)
"GJ 169.1 B -- Star in double system". Centre de Données astronomiques de Strasbourg. Retrieved 2012-01-02. (컴포넌트 B)

이 쌍성계 또는 다중성계 관련 문서는 stub입니다.위키피디아를 확장함으로써 위키피디아를 도울 수 있습니다.

적색왜성에 대한 이 기사는 짧은 글이다.위키피디아를 확장함으로써 위키피디아를 도울 수 있습니다.

백인 왜성에 대한 이 기사는 촌스럽다.위키피디아를 확장함으로써 위키피디아를 도울 수 있습니다.

[1] "Einstein revisited". www.spacetelescope.org. Retrieved 12 June 2017.

[compA-2] "NAME Stein 2051 A". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 26 December 2016.

[compB-3] "NAME Stein 2051 B". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 20 December 2016.

[UBV-4] Hardie, R. H. (1966). "UBV Photometry of the Lowell Proper Motion Object G175-34". Publications of the Astronomical Society of the Pacific. 78 (462): 171. Bibcode:1966PASP...78..171H. doi:10.1086/128321.

[EDR3a-5] 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. (에라타: doi :10.1051/0004-6361/202039657e).VizieR에서 이 소스에 대한 Gaia EDR3 레코드.

[EDR3b-6] 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. (에라타: doi :10.1051/0004-6361/202039657e).VizieR에서 이 소스에 대한 Gaia EDR3 레코드.

[7] The CARMENES search for exoplanets around M dwarfs A deep learning approach to determine fundamental parameters of target stars, 2020, arXiv:2008.01186

[Khata2020-8] Understanding Physical Properties of Young M-dwarfs: NIR spectroscopic studies, 2020, arXiv:2002.05762

[van_Leeuwen2007-9] Perryman; et al. (1997). "HIP 21088". The Hipparcos and Tycho Catalogues. Retrieved 2014-11-23.

[Gliese1991-10] Gliese, W. & Jahreiß, H. (1991). "Gl 169.1". Preliminary Version of the Third Catalogue of Nearby Stars. Retrieved 2014-11-23.

[van_Altena1995-11] Van Altena W. F.; Lee J. T.; Hoffleit E. D. (1995). "GCTP 986.01". The General Catalogue of Trigonometric Stellar Parallaxes (Fourth ed.). Retrieved 2014-11-23.

[van_Leeuwen2007_40_Eri-12] Perryman; et al. (1997). "HIP 19849". The Hipparcos and Tycho Catalogues. Retrieved 2014-11-21.

[Sahu2017-13] Sahu, Kailash C.; et al. (June 2017), "Relativistic deflection of background starlight measures the mass of a nearby white dwarf star", Science, 356 (6342): 1046–1050, arXiv:1706.02037, Bibcode:2017Sci...356.1046S, doi:10.1126/science.aal2879, PMID 28592430, S2CID 206654918.

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Observation data Epoch J2000 Equinox J2000
Image of Stein 2051 B and a background star taken by the Hubble Space Telescope.^[1] Credit: NASA, ESA, and K. Sahu (STScI)
Constellation	Camelopardalis
Stein 2051 A
Right ascension	04^h 31^m 11.5181^s^[2]
Declination	+58° 58′ 37.461″^[2]
Apparent magnitude (V)	10.977^[2]
Stein 2051 B
Right ascension	04^h 31^m 12.570^s^[3]
Declination	+58° 58′ 41.15″^[3]
Apparent magnitude (V)	11.19^[3]
Characteristics
Stein 2051 A
Spectral type	M4.0Ve^[2]
U−B color index	+1.21^[4]
B−V color index	+1.65^[4]
Stein 2051 B
Spectral type	DC5^[3]
U−B color index	-0.53^[4]
B−V color index	+0.31^[4]
Astrometry
Stein 2051 A
Radial velocity (R_v)	29 km/s
Proper motion (μ)	RA: 1300.365 mas/yr^[5] Dec.: -2046.106 mas/yr^[5]
Parallax (π)	181.2438 ± 0.0499 mas^[5]
Distance	17.995 ± 0.005 ly (5.517 ± 0.002 pc)
Stein 2051 B
Radial velocity (R_v)	2.0 km/s
Proper motion (μ)	RA:1334.780±0.021^[6]mas/yr Dec.:−1947.638±0.019^[6]mas/yr
Parallax (π)	181.2730 ± 0.0203 mas^[6]
Distance	17.993 ± 0.002 ly (5.5165 ± 0.0006 pc)
Details^[7]
Stein 2051 A
Mass	0.252±0.013^[8] `M`_☉
Radius	0.292±0.031^[8] `R`_☉
Luminosity	0.0081^[8] `L`_☉
Surface gravity (log g)	4.80^+0.13 _−0.10 cgs
Temperature	3277⁺⁴² ₋₇₅ K
Metallicity [Fe/H]	0.26^+0.06 _−0.22 dex
Rotational velocity (v sin i)	5.2^+1.7 _−2.7 km/s
Stein 2051 B
Other designations
Stein 2051, G 175-34, HIP 21088,^[9] WDS J04312+5858AB, GJ 169.1,^[10] PLX 986.01^[11]
Stein 2051 A: LHS 26, NLTT 13373, TYC 3744-412-1, 2MASS J04311147+585837, WISE J043113.20+585816.7^[2]
Stein 2051 B: EGGR 180, LHS 27, NLTT 13375, TYC 3744-2062-1, 2MASS J04311201+5858476, WD 0426+58, WD2 0426+585, WD3 0426+588^[3]
Database references
SIMBAD	The system
	A
	B
Stein 2051 Location of Stein 2051 in the constellation Camelopardalis

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Stein 2051

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특성.

레퍼런스

외부 링크