Other names: 0806-661, L97-3, BPM 4834, NLTT 19008
Parameter | Unit | Giammichele et al. 2012 | Subasavage et al. 2009 | Holberg et al. 2008 | Subasavage et al. 2007 | Bergeron et al. 1997 | Simbad |
---|---|---|---|---|---|---|---|
Right ascension | 08 06 53.76 | 08 06 53.76 | 08 06 53.74 | ||||
Declination | -66 18 16.60 | -66 18 16.60 | -66 18 16.74 | ||||
Spectral type | DQ | DQ | DQ | DQ | DQ | DQ4 | |
Effective temperature | [K] | 10205.0 | 10250.0 | 10753.0 | 11940.0 | ||
log(g) | [cgs] | 8.00 | 8.06 | 8.00 | |||
Mass | [M☉] | 0.58 | 0.62 | 0.58 | |||
log(Luminosity) | [L☉] | -2.80 | -2.83 | -2.54 | |||
Age | [Gyr] | 0.6200 | 0.6700 | 0.5200 | |||
log(H/He) | |||||||
log(C/He) | -5.45 | -5.55 | |||||
log(Ca/He) | |||||||
log(N/He) | |||||||
log(O/He) | |||||||
log(Na/He) | |||||||
log(Mg/He) | |||||||
log(Al/He) | |||||||
log(Si/He) | |||||||
log(P/He) | |||||||
log(S/He) | |||||||
log(Cl/He) | |||||||
log(Sc/He) | |||||||
log(Ti/He) | |||||||
log(V/He) | |||||||
log(Cr/He) | |||||||
log(Mn/He) | |||||||
log(Fe/He) | |||||||
log(Co/He) | |||||||
log(Ni/He) | |||||||
log(Cu/He) | |||||||
log(Zn/He) | |||||||
log(Ga/He) | |||||||
log(Ge/He) | |||||||
log(Sr/He) | |||||||
Parallax | [mas] | 52.17 | 52.17 | 52.17 | |||
Distance | [pc] | 19.20 | 19.17 (1000/par) | 19.08 | 21.10 | 19.17 (1000/par) | |
Composition | He | He | He | He | He | ||
Proper motion (right ascension) | [mas/yr] | 340.3 | |||||
Proper motion (declination) | [mas/yr] | -289.6 | |||||
Variability | |||||||
Magnetic | |||||||
Has a disk | |||||||
Binarity | |||||||
B magnitude | 13.74 | 13.74 | 13.76 | ||||
V magnitude | 13.71 | 13.71 | 13.70 | ||||
R magnitude | 13.64 | 13.64 | 13.66 | ||||
I magnitude | 13.60 | 13.60 | 13.61 | ||||
J magnitude | 13.70 | 13.70 | 13.70 | 13.79 | 13.70 | ||
H magnitude | 13.74 | 13.74 | 13.74 | 13.85 | 13.74 | ||
K magnitude | 13.78 | 13.78 | 13.78 | 13.92 | 13.78 | ||
u magnitude | |||||||
g magnitude | |||||||
r magnitude | |||||||
i magnitude | |||||||
z magnitude |
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.