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V382 Velorum

Location of V382 Velorum (circled in red)
Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Vela
Right ascension	10 44 48.3978
Declination	−52° 25′ 31.1686″
Apparent magnitude (V)	2.8 Max. 16.6 Min.
Characteristics
Variable type	Nova
Astrometry
Proper motion (μ)	RA: −11.885±0.083 mas/yr Dec.: 2.690±0.079 mas/yr
Parallax (π)	0.5599 ± 0.0547 mas
Distance	1800+243 −133 pc
Other designations
Nova Vel 1999, AAVSO 1040-51, Gaia DR2 5354475121660180096
Database references
SIMBAD	data

V382 Velorum, also known as Nova Velorum 1999, was a bright nova which occurred in 1999 in the southern constellation Vela. V382 Velorum reached a brightness of 2.6 magnitude, making it easily visible to the naked eye. It was discovered by Peter Williams of Heathcote, New South Wales, Australia at 09:30 UT on 22 May 1999. Later that same day it was discovered independently at 10:49 UT by Alan C. Gilmore at Mount John University Observatory in New Zealand.

In its quiescent state, V382 Velorum has a mean visual magnitude of 16.56. It is classified as a fast nova with a smooth light curve.

Like all novae, V382 Velorum is a binary system with two stars orbiting so close to each other that one star, the "donor" star, transfers matter to its companion star which is a white dwarf. The orbital period is 3.5 hours. The white dwarf in this system has a mass of 1.23M_⊙. V382 Velorum is a neon nova, a relatively rare type of nova with a O-Ne-Mg white dwarf, rather than the more common C-O white dwarf.

The stars forming V382 Velorum are surrounded by a small emission nebula about 10 arc seconds in diameter.

References

1. ^ Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
2. ^ Schaefer, Bradley E. (2018). "The distances to Novae as seen by Gaia". Monthly Notices of the Royal Astronomical Society. 481 (3): 3033–3051. arXiv:1809.00180. Bibcode:2018MNRAS.481.3033S. doi:10.1093/mnras/sty2388. S2CID 118925493.
3. "V382 Velorum". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-08-26.
4. Shore, SN, et al., in The Astronomical Journal, vol. 125, pp. 1507-1518, March 2003
5. Williams, P.; Lee, S.; Pearce, A.; Gilmore, A.C.; Pollard, K.R.; McSaveney, J.A.; Kilmartin, P.M.; Caldwell, P. (May 1999). "Nova Velorum 1999". IAU Circular. 7176: 1. Bibcode:1999IAUC.7176....1L. Retrieved 7 December 2020.
6. Platais, Imants; Girard, Terrence M.; Kozhurina-Platais, Vera; Vanaltena, William F.; Jain, Raj K.; Lopez, Carlos E. (February 2000). "Nova Velorum 1999=V382 Vel: Astrometry and Photometry". Publications of the Astronomical Society of the Pacific. 112 (768): 224–227. Bibcode:2000PASP..112..224P. doi:10.1086/316505. S2CID 119706880.
7. Dellavalle, M.; Pasquini, L.; Daou, D.; Williams, R.E. (July 2002). "The evolution of Nova V382 Velorum 1999" (PDF). Astronomy & Astrophysics. 390: 155–166. arXiv:astro-ph/0205135. Bibcode:2002A&A...390..155D. doi:10.1051/0004-6361:20020611. Retrieved 7 December 2020.
8. Strope, Richard J.; Schaefer, Bradley E.; Henden, Arne A. (July 2010). "Catalog of 93 Nova Light Curves: Classification and Properties". The Astronomical Journal. 140 (1): 34–62. arXiv:1004.3698. Bibcode:2010AJ....140...34S. doi:10.1088/0004-6256/140/1/34.
9. Balman, Solen; Retter, Alon; Bos, Marc (May 2006). "The Detection of a 3.5 hr Period in the Classical Nova Velorum 1999 (V382 Vel) and the Long-Term Behavior of the Nova Light Curve". The Astronomical Journal. 131 (5): 2628–2633. arXiv:astro-ph/0601713. Bibcode:2006AJ....131.2628B. doi:10.1086/503161. S2CID 18321996. Retrieved 7 December 2020.
10. Hachisu, Izumi; Kato, Mariko (June 2019). "A Light-curve Analysis of 32 Recent Galactic Novae: Distances and White Dwarf Masses". The Astrophysical Journal Supplement Series. 242 (2): 18. arXiv:1905.10655. Bibcode:2019ApJS..242...18H. doi:10.3847/1538-4365/ab1b43. S2CID 166228785.
11. Hachisu, Izumi; Kato, Mariko (1 January 2016). "Light-curve Analysis of Neon Novae". The Astrophysical Journal. 816 (1): 26. arXiv:1511.06819. Bibcode:2016ApJ...816...26H. doi:10.3847/0004-637X/816/1/26. S2CID 118690985.
12. Takeda, Larissa; Marcos, Diaz (May 2019). "Imaging and Analysis of Neon Nova V382 Vel Shell". Publications of the Astronomical Society of the Pacific. 131 (999): 054205. arXiv:1909.02051. Bibcode:2019PASP..131e4205T. doi:10.1088/1538-3873/ab0a47.

External links

• https://web.archive.org/web/20060517025834/http://institutocopernico.org/cartas/v382velb.gif
• https://web.archive.org/web/20050915104557/http://www.tsm.toyama.toyama.jp/curators/aroom/var/nova/1990.htm

v t e Constellation of Vela
List of stars in Vela Vela in Chinese astronomy
Stars	Bayer γ (Regor) δ (Alsephina) κ (Markeb) λ (Suhail) μ ο φ (Tseen Ke) ψ Variable T W AH AI GP (X-1) GX GZ HU HX HY IM KQ MV (J) NX V378 V382 V390 HR 3294 (B) 3358 (A) 3407 (C) 3426 (e) 3445 (b) 3452 (n) 3477 (d) 3487 (a) 3497 3520 (g) 3570 3574 (H) 3591 (w) 3614 (c) 3682 (l) 3684 (k) 3753 (I) 3803 (N) 3819 (L) 3831 3836 (M) 3912 (m) 3990 (Q) 4023 (q) 4080 (r) 4134 4143 (t) 4167 (p) 4180 (x) 4293 (i) HD 73526 74438 83443 (Kalausi) 85390 (Natasha) 85512 93385 300933 Other DENIS J082303.1−491201 Gliese 367 (Añañuca) GJ 1132 Luhman 16 PSR J0855−4644 WASP-19
Exoplanets Gliese 367 b (Tahay) c d GJ 1132 b HD 73526 b c HD 75289 b HD 85390 b HD 83443 b c WASP-19b
Star clusters	NGC 2547 2659 3201 3228 Other IC 2391 IC 2395 IC 2488 RCW 38 Trumpler 10
Nebulae	NGC NGC 2626 NGC 2736 NGC 2792 NGC 2899 NGC 3132 Other Gum 15 HH 46/47 RCW 34 Vela Supernova Remnant
Galaxies	NGC 3256
Galaxy clusters Vela Supercluster
Category

• Novae
• Vela (constellation)
• 1999 in science
• Objects with variable star designations