All names: Gaia DR2 2815577050823120256, SDSS J231133.89+144119.9, WIRED J231133.88+144119.9, SDSS J231133.88+144119.9, WD 2309+144, Gaia DR3 2815577050823120256, Gaia EDR3 2815577050823120256
Parameter | Unit | Gaia EDR3 | SDSS DR12 | Bedard et al. 2020 | MWDD H | Gaia DR2 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 23 11 33.89 (0.4) | 23 11 33.88 | 23 11 33.89 (0.5) | 23 11 33.89 (0.4) | 23 11 33.88 | 23 11 34.03 | 23 11 33.89 | |||
Declination | 14 41 19.95 (0.3) | 14 41 19.94 | 14 41 19.95 (0.3) | 14 41 19.94 (0.3) | 14 41 19.92 | 14 41 18.60 | 14 41 19.94 | |||
Spectral type | DA | DA | DA | DA_auto | DA | DA | ||||
Effective temperature | [K] | 38427.0 (691) | 22684.0 | 39161.0 (1369) | 39873.0 (1483) | |||||
log(g) | [cgs] | 7.74 (0.09) | 5.90 | 7.40 (0.2) | 7.36 (0.2) | |||||
Mass | [M☉] | 0.54 (0.04) | 0.093 | 0.473 (0.05) | ||||||
log(Luminosity) | [L☉] | -0.28 (0.07) | ||||||||
Cooling age | [Gyr] | 0.0041 (0.0004) | ||||||||
log(H/He) | ||||||||||
log(C/He) | ||||||||||
log(Ca/He) | ||||||||||
log(Ca/H) | ||||||||||
log(C/H) | ||||||||||
log(N/H) | ||||||||||
log(O/H) | ||||||||||
log(Na/H) | ||||||||||
log(Mg/H) | ||||||||||
log(Al/H) | ||||||||||
log(Si/H) | ||||||||||
log(P/H) | ||||||||||
log(S/H) | ||||||||||
log(Sc/H) | ||||||||||
log(Ti/H) | ||||||||||
log(Cr/H) | ||||||||||
log(Mn/H) | ||||||||||
log(Fe/H) | ||||||||||
log(Ni/H) | ||||||||||
Parallax | [mas] | -0.21 (0.4) | -0.41 (0.6) | |||||||
Distance | [pc] | |||||||||
Composition | H | H | ||||||||
Proper motion (right ascension) | [mas/yr] | 4.49537119 (0.4) | 2.384400835 (1) | 4.495 (0.4) | 2.6 | |||||
Proper motion (declination) | [mas/yr] | 0.346457818 (0.3) | 0.647188848 (0.7) | 0.346 (0.3) | -0.6 | |||||
Variability | ||||||||||
Magnetic | ||||||||||
Bd | [MG] | |||||||||
Infrared excess (disk) | ||||||||||
Binarity | ||||||||||
B magnitude | ||||||||||
V magnitude | ||||||||||
R magnitude | ||||||||||
I magnitude | ||||||||||
J magnitude | 19.17 (0.1) | |||||||||
H magnitude | 18.68 (0.2) | |||||||||
K magnitude | 17.89 (0.2) | |||||||||
u magnitude | 18.92 (0.02) | 18.91 (0.02) | 18.93 (0.03) | 18.92 | 18.93 (0.02) | |||||
g magnitude | 19.18 (0.01) | 19.18 (0.01) | 19.22 (0.02) | 19.21 | 19.22 (0.02) | |||||
r magnitude | 19.57 (0.02) | 19.56 (0.02) | 19.62 (0.02) | 19.61 | 19.61 (0.02) | |||||
i magnitude | 19.83 (0.03) | 19.83 (0.03) | 19.89 (0.03) | 19.88 | 19.88 (0.03) | |||||
z magnitude | 20.23 (0.2) | 20.18 (0.2) | 20.30 (0.2) | 20.29 | 20.29 (0.2) | |||||
G magnitude | 19.44 (0.04) | 19.49 | 19.44 (0.005) | |||||||
BP magnitude | 19.34 (0.04) | 19.23 | ||||||||
RP magnitude | 19.58 (0.07) | 19.34 | ||||||||
Pan g magnitude | ||||||||||
Pan r magnitude | ||||||||||
Pan i magnitude | ||||||||||
Pan z magnitude | ||||||||||
Pan y magnitude | ||||||||||
E(B-V) |
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.