GQ Muscae
{{Short description|Nova in the constellation Musca}}
{{Starbox begin
| name = GQ Muscae
}}
{{Starbox image
| image = 250px
| caption = A visual band light curve for GQ Muscae. The main plot shows the decline from the 1983 eruption, plotted with data from the AAVSO, Whitelock et al. and Liller. The inset plot (adapted from Narloch et al.) shows the post-eruption variability seen in 1992.
}}
{{Starbox observe
| epoch = J2000
| constell = Musca
| dec = {{DEC|-67|12|20.9911}}
}}
{{Starbox character
| class =
| b-v =
| u-b =
| variable = Nova
}}
{{Starbox astrometry
| radial_v =
| prop_mo_ra = {{val|−5.056|0.451}}
| prop_mo_dec = {{val|1.193|0.324}}
| parallax = 0.4702
| p_error = 0.2193
| dist_pc = {{val|2480|3780|300}}
| absmag_v =
}}
{{Starbox catalog
| names = {{odlist | name=AAVSO 1147-66 | name2=Nova Mus 1983 | Gaia DR2=5236081560713688448 }}
}}
{{Starbox reference
| Simbad = GQ+Mus
}}
{{Starbox end}}
GQ Muscae, also known as Nova Muscae 1983 is a nova in the constellation Musca, which was discovered by William Liller at 03:20 UT on 18 January 1983. At the time of its discovery it was a magnitude ≈7.2 object, and it subsequently faded.
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. GQ Muscae was the first nova from which X-rays were detected.
References
{{Reflist|refs=
{{cite book|last=Liller|first=William|title=Cambridge Astronomy Guide|publisher=CUP Archive|location=Cambridge, United Kingdom|date=1990|page=105|isbn=0-521-39915-7|url=https://books.google.com/books?id=yl04AAAAIAAJ&pg=PA105}}
{{Cite Gaia DR2|5236081560713688448}}
{{cite simbad | title=GQ Muscae | accessdate=2019-08-19 }}
}}
{{Musca}}
{{DEFAULTSORT:GQ Muscae}}
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