DM Lyrae

Dwarf nova in the constellation Lyra

DM Lyrae
Observation data Epoch J2000.0 Equinox J2000.0
A visual band light curve for DM Lyrae, adapted from Nogami et al. (2003).^[1] The inset plot shows the superhump variations.
Constellation	Lyra
Right ascension	18^h 58^m 44.43^s^[2]
Declination	+30° 15′ 33.0″^[2]
Apparent magnitude (V)	+18 (quiet), +13.6 (burst)^[2]
Characteristics
Spectral type	? / White dwarf
Variable type	SU UMa^[1]
Orbit^[3]
Period (P)	0.0654092±0.000002 d
Periastron epoch (T)	2,451,343.8565±0.0015 HJD
Semi-amplitude (K₁) (primary)	37±5 km/s
Details
Donor star
Mass	0.095±0.022^[4] `M`_☉
Radius	0.145±0.011^[4] `R`_☉

Other designations
Lyr 1928, AN 250.1929, 1RXS J185845.1+301548, AAVSO 1854+30, DM Lyr^[5]
Database references
SIMBAD	data

DM Lyrae (DM Lyr for short) is a dwarf nova in the constellation Lyra. This binary system is composed of a primary star of unknown type, and a white dwarf companion. It erupted in 1928 and 1996 and reached about magnitude 13.^[1]

References

^ ^a ^b ^c Nogami, D.; et al. (2003). "The SU UMa Nature of the Dwarf Nova, DM Lyrae". Publications of the Astronomical Society of Japan. 55 (2): 483–488. arXiv:astro-ph/0301036. Bibcode:2003PASJ...55..483N. doi:10.1093/pasj/55.2.483. S2CID 18844865.
^ ^a ^b ^c Downes, Ronald A.; et al. (2001). "A Catalog and Atlas of Cataclysmic Variables: The Living Edition". Publications of the Astronomical Society of the Pacific. 113 (784): 764. arXiv:astro-ph/0102302. Bibcode:2001PASP..113..764D. doi:10.1086/320802. S2CID 16285959.
^ Thorstensen, John R.; Fenton, William H. (January 2003). "Five Dwarf Novae with Orbital Periods below Two Hours". The Publications of the Astronomical Society of the Pacific. 115 (803): 37–42. arXiv:astro-ph/0209172. Bibcode:2003PASP..115...37T. doi:10.1086/345103. S2CID 119343404.
^ ^a ^b Knigge, Christian (December 2006). "The donor stars of cataclysmic variables". Monthly Notices of the Royal Astronomical Society. 373 (2): 484–502. arXiv:astro-ph/0609671. Bibcode:2006MNRAS.373..484K. doi:10.1111/j.1365-2966.2006.11096.x. S2CID 2616606.
^ "DM Lyr". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-11-15.

External links

"DM Lyr: A new UGSU Star". Retrieved June 22, 2006.
"DM Lyr". VSNET. Retrieved June 22, 2006.

Constellation of Lyra

Stars

Bayer	α (Vega) β (Sheliak) γ (Sulafat) δ¹ δ² ε¹ ε² ζ¹ ζ² η (Aladfar) θ ι κ λ μ (Alathfar) ν¹ ν²
Flamsteed	16 17 19
Variable	R (13) S T V W RR RV RZ TT TZ UZ XY AY CC CN CY DM EP EZ FL HK HP HR KX MV V344 V361 V404 V473 V477 V478 V533 V542 V543 V545 V550 V558
HR	6845 6847 6853 6901 6968 6984 6997 7016 7017 7019 7030 7033 7041 7043 (Xihe) 7044 7064 7073 7081 7112 7115 7118 7132 7140 7146 7162 7181 7202 7204 7212 7237 7238 7244 7253 7272 7280 7284 7302 7338 7345 7346 7359 7376 7382
HD	177830 179070 180314 181068
Kepler	7 8 9 13 14 19 20 24 25 26 30 37 38 46 59 60 62 65 75 88 91 92 93 94 95 98 100 102 103 104 105 109 128 130 131 138 160 174 177 238 277 279 282 350 410 421 429 444 635 705
Other	Gliese 758 GJ 4063 GSC 02652-01324 HAT-P-5 (Chasoň) KSw 71 LHS 6343 LSR J1835+3259 WASP-3 WASP-58 WISE 1828+2650

Exoplanets

Kepler	7b 8b 9b c d 14b 20b c d e f g 24b c d e 25b c 26e 37b c d 59b 60d 62b c d e f 91b 93b 277b c 438b 440b 422b 453b 705b 1513b
Other	HAT-P-5b (Kráľomoc) HD 173416 b (Wangshu) HD 178911 Bb TrES-1b

Star clusters

Nebulae

Ring Nebula

Galaxies

NGC	6606 6612 6640 6646 6657 6662 6663 6665 6671 6672 6675 6685 6686 6688 6692 6695 6700 6702 6703 6710 6713 6740 6745 6765 6792
Other	IC 1296