# GQ Muscae

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Nova in the constellation Musca

GQ Muscae A visual band light curve for GQ Muscae. The main plot shows the decline from the 1983 eruption, plotted with data from the AAVSO,[1] Whitelock et al.[2] and Liller.[3] The inset plot (adapted from Narloch et al.[4]) shows the post-eruption variability seen in 1992. Observation data Epoch J2000 Equinox J2000 Constellation Musca Right ascension 11h 52m 02.4285s[5] Declination −67° 12′ 20.991″[5] Apparent magnitude (V) 7.2 Max. 21 Min.[6] Characteristics Variable type Nova[6] Astrometry Proper motion (μ) RA: −5.056±0.451[5] mas/yr Dec.: 1.193±0.324[5] mas/yr Parallax (π) 0.4702±0.2193 mas[5] Distance 2480+3780 −300[6] pc Other designations AAVSO 1147-66, Nova Mus 1983, Gaia DR2 5236081560713688448[7] Database references SIMBAD data

**GQ Muscae**, also known as **Nova Muscae 1983** is a [nova](/source/Nova) in the [constellation](/source/Constellation) [Musca](/source/Musca_(constellation)), which was discovered by [William Liller](/source/William_Liller) at 03:20 [UT](/source/Universal_Time) on 18 January 1983.[8] At the time of its discovery it was a magnitude ≈7.2 object, and it subsequently faded.[3][9]

GQ Muscae is a binary star system composed of a white dwarf and small star, the donor star, that is about 10% as massive as the Sun. The two orbit each other every 1.4 hours. The white dwarf accumulates material from the donor star until a runaway nuclear thermonuclear reaction erupts, as it did in 1983.[9] GQ Muscae was the first nova from which X-rays were detected.[10]

## References

1. **[^](#cite_ref-aavso_1-0)** ["Download Data"](https://www.aavso.org/data-download). *aavso.org*. AAVSO. Retrieved 1 October 2021.

1. **[^](#cite_ref-Whitelock_2-0)** Whitelock, P. A.; Carter, B. S.; Feast, M. W.; Glass, I. S.; Laney, D.; Menzies, J. W.; Walsh, J.; Williams, P. M. (November 1984). ["Infrared and optical observations of Nova Mus 1983"](https://doi.org/10.1093%2Fmnras%2F211.2.421). *Monthly Notices of the Royal Astronomical Society*. **211** (2): 421–432. [Bibcode](/source/Bibcode_(identifier)):[1984MNRAS.211..421W](https://ui.adsabs.harvard.edu/abs/1984MNRAS.211..421W). [doi](/source/Doi_(identifier)):[10.1093/mnras/211.2.421](https://doi.org/10.1093%2Fmnras%2F211.2.421).

1. ^ [***a***](#cite_ref-liller90_3-0) [***b***](#cite_ref-liller90_3-1) Liller, William (1990). [*Cambridge Astronomy Guide*](https://books.google.com/books?id=yl04AAAAIAAJ&pg=PA105). Cambridge, United Kingdom: [CUP Archive](/source/CUP_Archive). p. 105. [ISBN](/source/ISBN_(identifier)) [0-521-39915-7](https://en.wikipedia.org/wiki/Special:BookSources/0-521-39915-7).

1. **[^](#cite_ref-Narloch_4-0)** Narloch, W.; Kaluzny, J.; Krzeminski, W.; Pych, W.; Rozyczka, M.; Shectman, S.; Thompson, I. B.; Tomov, T. (January 2014). "New Observations of the Old Magnetic Nova GQ Muscae". *Baltic Astronomy*. **23**: 1–7. [arXiv](/source/ArXiv_(identifier)):[1401.7177](https://arxiv.org/abs/1401.7177). [Bibcode](/source/Bibcode_(identifier)):[2014BaltA..23....1N](https://ui.adsabs.harvard.edu/abs/2014BaltA..23....1N). [doi](/source/Doi_(identifier)):[10.1515/astro-2017-0168](https://doi.org/10.1515%2Fastro-2017-0168). [S2CID](/source/S2CID_(identifier)) [119291924](https://api.semanticscholar.org/CorpusID:119291924).

1. ^ [***a***](#cite_ref-Gaia_DR2_5-0) [***b***](#cite_ref-Gaia_DR2_5-1) [***c***](#cite_ref-Gaia_DR2_5-2) [***d***](#cite_ref-Gaia_DR2_5-3) [***e***](#cite_ref-Gaia_DR2_5-4) [Brown, A. G. A.](/source/Anthony_Brown_(scientist)); et al. ([Gaia collaboration](/source/Data_Processing_and_Analysis_Consortium)) (August 2018). ["*Gaia* Data Release 2: Summary of the contents and survey properties"](https://doi.org/10.1051%2F0004-6361%2F201833051). *[Astronomy & Astrophysics](/source/Astronomy_%26_Astrophysics)*. **616**. A1. [arXiv](/source/ArXiv_(identifier)):[1804.09365](https://arxiv.org/abs/1804.09365). [Bibcode](/source/Bibcode_(identifier)):[2018A&A...616A...1G](https://ui.adsabs.harvard.edu/abs/2018A&A...616A...1G). [doi](/source/Doi_(identifier)):[10.1051/0004-6361/201833051](https://doi.org/10.1051%2F0004-6361%2F201833051). [Gaia DR2 record for this source](https://vizier.u-strasbg.fr/viz-bin/VizieR-S?Gaia%20DR2%205236081560713688448) at [VizieR](/source/VizieR).

1. ^ [***a***](#cite_ref-Schaefer2018_6-0) [***b***](#cite_ref-Schaefer2018_6-1) [***c***](#cite_ref-Schaefer2018_6-2) Schaefer, Bradley E. (2018). ["The distances to Novae as seen by Gaia"](https://doi.org/10.1093%2Fmnras%2Fsty2388). *Monthly Notices of the Royal Astronomical Society*. **481** (3): 3033–3051. [arXiv](/source/ArXiv_(identifier)):[1809.00180](https://arxiv.org/abs/1809.00180). [Bibcode](/source/Bibcode_(identifier)):[2018MNRAS.481.3033S](https://ui.adsabs.harvard.edu/abs/2018MNRAS.481.3033S). [doi](/source/Doi_(identifier)):[10.1093/mnras/sty2388](https://doi.org/10.1093%2Fmnras%2Fsty2388). [S2CID](/source/S2CID_(identifier)) [118925493](https://api.semanticscholar.org/CorpusID:118925493).

1. **[^](#cite_ref-Simbad_7-0)** ["GQ Muscae"](http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=GQ+Muscae). *[SIMBAD](/source/SIMBAD)*. [Centre de données astronomiques de Strasbourg](/source/Centre_de_donn%C3%A9es_astronomiques_de_Strasbourg). Retrieved 2019-08-19.

1. **[^](#cite_ref-IAUC3764_8-0)** Marsden, Brian G. (20 January 1983). ["Nova Muscae 1983"](http://www.cbat.eps.harvard.edu/iauc/03700/03764.html). *International Astronomical Union Circular* (3764). Retrieved 30 January 2022.

1. ^ [***a***](#cite_ref-Izumi_9-0) [***b***](#cite_ref-Izumi_9-1) Hachisu, Izumi; Kato, Mariko; Cassatella, Angelo (2008). "A Universal Decline Law of Classical Novae. III. GQ Muscae 1983". *The Astrophysical Journal*. **687** (2): 1236–52. [arXiv](/source/ArXiv_(identifier)):[0806.4253](https://arxiv.org/abs/0806.4253). [Bibcode](/source/Bibcode_(identifier)):[2008ApJ...687.1236H](https://ui.adsabs.harvard.edu/abs/2008ApJ...687.1236H). [doi](/source/Doi_(identifier)):[10.1086/591415](https://doi.org/10.1086%2F591415). [S2CID](/source/S2CID_(identifier)) [50476380](https://api.semanticscholar.org/CorpusID:50476380).

1. **[^](#cite_ref-duerbeck_10-0)** Duerbeck, H.W. (2009). ["New Stars and Telescopes: Nova Research in the Last Four Centuries"](https://web.archive.org/web/20150924073139/http://www.physics.usyd.edu.au/~laszlo/kepek/400ev_novai.pdf) (PDF). *Astronomische Nachrichten*. **330** (6): 568–73. [Bibcode](/source/Bibcode_(identifier)):[2009AN....330..568D](https://ui.adsabs.harvard.edu/abs/2009AN....330..568D). [doi](/source/Doi_(identifier)):[10.1002/asna.200911218](https://doi.org/10.1002%2Fasna.200911218). Archived from [the original](http://www.physics.usyd.edu.au/~laszlo/kepek/400ev_novai.pdf) (PDF) on 2015-09-24. Retrieved 2014-03-09.

v t e Constellation of Musca List of stars in Musca Musca in Chinese astronomy Stars Bayer α β γ δ ε ζ1 ζ2 η θ ι1 ι2 λ μ λ Cha Variable R S SY TU GQ GR GU GT KR MP V357 HR 4538 4549 5002 HD 111232 112410 Other Gliese 440 PSR J1141−6545 YSES 1 YSES 2 YSES 2b Exoplanets HD 111232 b Star clusters NGC 4372 NGC 4463 NGC 4815 NGC 4833 Nebulae NGC 5189 Other BHR 71 Dark Doodad Nebula Engraved Hourglass Nebula G299.2-2.9 Category

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