DM Lyrae
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File:DMLyrLightCurve.png A visual band light curve for DM Lyrae, adapted from Nogami et al. (2003).[1] The inset plot shows the superhump variations. | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Lyra |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | +18 (quiet), +13.6 (burst)[2] |
| Characteristics | |
| Spectral type | ? / White dwarf |
| Variable type | SU UMa[1] |
| Orbit[3] | |
| Period (P) | Template:Val |
| Periastron epoch (T) | Template:Val |
| Semi-amplitude (K1) (primary) | 37±5 km/s |
| Details | |
| Donor star | |
| Mass | 0.095±0.022[4] Template:Solar mass |
| Radius | 0.145±0.011[4] Template:Solar radius |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[5] | |
| Database references | |
| SIMBAD | data |
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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]
See also
References
External links
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