All names: Gaia DR3 1035222289547372800, Gaia EDR3 1035222289547372800, Gaia DR2 1035222289547372800, SDSS J081544.65+581446.3, USNO-B1.0 1482-00223824, WDJ081544.72+581447.24, LSPM J0815+5814, SDSS J081544.64+581446.3, J0815+5814, GALEX J081544.5+581445
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 08 15 44.44 (0.07) | 08 15 44.65 | 08 15 44.45 (0.09) | 08 15 44.44 | 08 15 44.72 (0.07) | 08 15 44.45 | 08 15 44.64 | ||||||||
Declination | 58 14 43.71 (0.06) | 58 14 46.34 | 58 14 43.82 (0.08) | 58 14 43.71 | 58 14 47.24 (0.06) | 58 14 43.82 | 58 14 46.35 | ||||||||
Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | |||||||
Effective temperature | [K] | 7630.0 (50) | 7725.0 (46) | 7631.0 (50) | 7620.0 | 7688.0 (97) | 7590.0 (45) | ||||||||
log(g) | [cgs] | 8.39 (0.01) | 8.41 (0.01) | 8.39 (0.01) | 8.39 | 8.41 (0.02) | 8.37 (0.08) | ||||||||
Mass | [M☉] | 0.846 (0.009) | 0.861 (0.01) | 0.842 (0.01) | 0.842 | 0.86 (0.02) | 0.819 (0.05) | ||||||||
log(Luminosity) | [L☉] | ||||||||||||||
Cooling age | [Gyr] | 2.8000 | 2.6250 | ||||||||||||
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] | 16.82 (0.09) | 16.75 (0.1) | 16.75 (0.1) | 16.82 | 16.82 (0.09) | 16.75 (0.1) | ||||||||
Distance | [pc] | 59.47 (0.3) | 59.70 (0.4) | 59.70 (0.4) | 59.47 | 59.47 (0.3) | 59.70 (0.4) | ||||||||
Composition | H | H | H | ||||||||||||
Proper motion (right ascension) | [mas/yr] | -135.7849893 (0.07) | -135.759259 (0.2) | -135.785 (0.07) | -135.759259 | ||||||||||
Proper motion (declination) | [mas/yr] | -220.5452889 (0.08) | -220.8063488 (0.2) | -220.545 (0.08) | -220.8063488 | ||||||||||
Variability | |||||||||||||||
Magnetic | |||||||||||||||
Bd | [MG] | ||||||||||||||
Infrared excess (disk) | |||||||||||||||
Binarity | |||||||||||||||
B magnitude | 17.60 | ||||||||||||||
V magnitude | |||||||||||||||
R magnitude | 17.50 | ||||||||||||||
I magnitude | |||||||||||||||
J magnitude | 17.10 (0.02) | ||||||||||||||
H magnitude | |||||||||||||||
K magnitude | |||||||||||||||
u magnitude | 18.17 (0.01) | 18.16 (0.01) | 18.17 (0.01) | 18.17 (0.01) | 18.16 (0.02) | ||||||||||
g magnitude | 17.73 (0.005) | 17.73 (0.005) | 17.73 (0.005) | 17.75 (0.02) | |||||||||||
r magnitude | 17.63 (0.006) | 17.63 (0.006) | 17.63 (0.006) | 17.64 (0.01) | |||||||||||
i magnitude | 17.62 (0.007) | 17.62 (0.007) | 17.62 (0.007) | 17.62 (0.02) | |||||||||||
z magnitude | 17.70 (0.02) | 17.70 (0.02) | 17.70 (0.02) | 17.71 (0.02) | |||||||||||
G magnitude | 17.58 (0.009) | 17.61 | 17.58 | 17.58 (0.003) | 17.61 | ||||||||||
BP magnitude | 17.75 (0.009) | 17.74 | 17.74 | ||||||||||||
RP magnitude | 17.33 (0.01) | 17.31 | 17.31 | ||||||||||||
Pan g magnitude | 17.72 (0.006) | 17.72 (0.006) | |||||||||||||
Pan r magnitude | 17.62 (0.004) | 17.62 (0.004) | |||||||||||||
Pan i magnitude | 17.64 (0.003) | 17.64 (0.002) | |||||||||||||
Pan z magnitude | 17.72 (0.005) | 17.72 (0.005) | |||||||||||||
Pan y magnitude | 17.74 (0.02) | 17.74 (0.02) | |||||||||||||
E(B-V) | 0.002 |
* 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.