天鵝座Q

**天鵝座Q**
	天鵝座Q的位置（紅圈）
觀測資料; 曆元 J2000
星座	天鵝座
星官
赤經	21h 41m 43.928s
赤緯	42° 50′ 29.04″
視星等（V）	3.0 - 15.6
特性
光谱分类	K5
变星类型	新星
天体测定
视差 (π)	0.729 ± 0.024 mas
距离	1372+51; −42 (741 - 3,300) pc
绝对星等 (MV)	−9.1 - +2.9
詳細資料
白矮星
質量	0.8 M☉
表面重力 (log g)	8.5
溫度	31,000 K
伴星
質量	0.6 M☉
其他命名
	Nova Cygni 1867、HR 8296、BD+42°4182a、AAVSO 2137+42、 2MASS J21414393+4250290、Gaia DR2 1966874711229398656
參考資料庫
SIMBAD	资料

天鵝座Q（Q Cyg），是位於天鵝座的一顆恆星。它也被稱為「1876年天鹅座新星」、「NGC 7114」和「HR 8296」。天鹅座新星位於天鹅座西北部，與蝎虎座接壤。

天鵝座Q是有記錄以來最早的新星之一^[6]，它是天文學家約翰·弗里德里希·尤利烏斯·施密特於1876年11月24日發現的^[9]。這顆恆星經歷了一次新星爆發，星等變亮至約3等，並在四天內保持同樣的亮度^[6]。

該系統被稱為激變變星^[3]，由一顆白矮星和另一顆每10小時繞主星一周的恆星組成。白矮星被一個吸積盤包圍，它比它所環繞的恆星亮得多。估計該系統的距離太陽為740±11秒差距^[5]。估計，這顆伴星的質量約為太陽的0.6倍，是一顆光譜類型為K5的橙矮星^[3]。伴星也被稱為供體恆星，通過其吸積盤為白矮星提供質量.^[3]。

報導在這顆新星周圍有一個小的星雲盤，這導致它被列入NGC天體表，可能是一個行星狀星雲。在現代觀測中沒有可見的星雲，修訂的新總目錄將其列為不存在天體^[10]。

參考資料

^ ^1.0 ^1.1 Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne, J. H. J.; et al. Gaia Data Release 2. Summary of the contents and survey properties. Astronomy & Astrophysics. 2018. Bibcode:2018A&A...616A...1G. arXiv:1804.09365 . doi:10.1051/0004-6361/201833051. VizieR中此天体在盖亚望远镜第二批数据发布的记录
^ ^2.0 ^2.1 Samus, N. N.; Durlevich, O. V.; et al. VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013). VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S. 2009, 1. Bibcode:2009yCat....102025S.
^ ^3.0 ^3.1 ^3.2 ^3.3 ^3.4 Peters, Christopher S.; Thorstensen, John R. Spectroscopy of Five Old Novae: New or Refined Orbital Periods. The Publications of the Astronomical Society of the Pacific. 2006, 118 (843): 687. Bibcode:2006PASP..118..687P. doi:10.1086/504641 .
^ ^4.0 ^4.1 ^4.2 Schaefer, Bradley E. The distances to Novae as seen by Gaia. Monthly Notices of the Royal Astronomical Society. 2018, 481 (3): 3033–3051. Bibcode:2018MNRAS.481.3033S. S2CID 118925493. arXiv:1809.00180 . doi:10.1093/mnras/sty2388.
^ ^5.0 ^5.1 ^5.2 ^5.3 ^5.4 Kolobow, Craig; Sion, Edward. The Amazing Old Nova Q Cygni: A Far-Ultraviolet Synthetic Spectral Analysis. Publications of the Astronomical Society of the Pacific. 2011, 123 (906): 892–94. Bibcode:2011PASP..123..892K. S2CID 118737622. arXiv:1106.1562 . doi:10.1086/661235.
^ ^6.0 ^6.1 ^6.2 Kafka, S.; Tappert, C.; Honeycutt, R. K.; Bianchini, A. Spectroscopic Study of Q Cygni: Surprises from an Old Nova. The Astronomical Journal. 2003, 126 (3): 1472–82. Bibcode:2003AJ....126.1472K. doi:10.1086/377020 .
^ Schmidt, Johann Friedrich Julius. Über den neuen Stern im Schwan. Astronomische Nachrichten. January 1877, 89 (3): 41. Bibcode:1877AN.....89...41S. doi:10.1002/asna.18770890304.
^ Lockyer, J. Norman. On the Causes which Produce the Phenomena of New Stars. Philosophical Transactions of the Royal Society of London, Series A. January 1891, 182: 397–448. Bibcode:1891RSPTA.182..397L. doi:10.1098/rsta.1891.0011 .
^ Duerbeck, Hilmar W. A Reference Catalogue and Atlas of Galactic Novae. Space Science Reviews. March 1987, 45 (1–2): 1–14. Bibcode:1987SSRv...45....1D. S2CID 115854775. doi:10.1007/BF00187826.
^ NGC 7000 - 7840. [2016-09-07]. （原始内容存档于2016-09-16）.

外部連結

Stars of Cygnus

维基文库中的相關文獻：Q Cygni

[Gaia_DR2-1] 1.0 ^1.1 Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne, J. H. J.; et al. Gaia Data Release 2. Summary of the contents and survey properties. Astronomy & Astrophysics. 2018. Bibcode:2018A&A...616A...1G. arXiv:1804.09365 . doi:10.1051/0004-6361/201833051. VizieR中此天体在盖亚望远镜第二批数据发布的记录

[gcvs-2] 2.0 ^2.1 Samus, N. N.; Durlevich, O. V.; et al. VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013). VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S. 2009, 1. Bibcode:2009yCat....102025S.

[peters-3] 3.0 ^3.1 ^3.2 ^3.3 ^3.4 Peters, Christopher S.; Thorstensen, John R. Spectroscopy of Five Old Novae: New or Refined Orbital Periods. The Publications of the Astronomical Society of the Pacific. 2006, 118 (843): 687. Bibcode:2006PASP..118..687P. doi:10.1086/504641 .

[shaefer-4] 4.0 ^4.1 ^4.2 Schaefer, Bradley E. The distances to Novae as seen by Gaia. Monthly Notices of the Royal Astronomical Society. 2018, 481 (3): 3033–3051. Bibcode:2018MNRAS.481.3033S. S2CID 118925493. arXiv:1809.00180 . doi:10.1093/mnras/sty2388.

[kolobow-5] 5.0 ^5.1 ^5.2 ^5.3 ^5.4 Kolobow, Craig; Sion, Edward. The Amazing Old Nova Q Cygni: A Far-Ultraviolet Synthetic Spectral Analysis. Publications of the Astronomical Society of the Pacific. 2011, 123 (906): 892–94. Bibcode:2011PASP..123..892K. S2CID 118737622. arXiv:1106.1562 . doi:10.1086/661235.

[kafka03-6] 6.0 ^6.1 ^6.2 Kafka, S.; Tappert, C.; Honeycutt, R. K.; Bianchini, A. Spectroscopic Study of Q Cygni: Surprises from an Old Nova. The Astronomical Journal. 2003, 126 (3): 1472–82. Bibcode:2003AJ....126.1472K. doi:10.1086/377020 .

[schm-7] Schmidt, Johann Friedrich Julius. Über den neuen Stern im Schwan. Astronomische Nachrichten. January 1877, 89 (3): 41. Bibcode:1877AN.....89...41S. doi:10.1002/asna.18770890304.

[lock-8] Lockyer, J. Norman. On the Causes which Produce the Phenomena of New Stars. Philosophical Transactions of the Royal Society of London, Series A. January 1891, 182: 397–448. Bibcode:1891RSPTA.182..397L. doi:10.1098/rsta.1891.0011 .

[duer-9] Duerbeck, Hilmar W. A Reference Catalogue and Atlas of Galactic Novae. Space Science Reviews. March 1987, 45 (1–2): 1–14. Bibcode:1987SSRv...45....1D. S2CID 115854775. doi:10.1007/BF00187826.

[ngc-10] NGC 7000 - 7840. [2016-09-07]. （原始内容存档于2016-09-16）.

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天鵝座Q

參考資料

外部連結

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