All names: LAMOST J123731.44+344822.5, SDSS J123731.44+344822.4, Gaia EDR3 1518352719609121280, WDJ123731.44+344822.61, Gaia DR3 1518352719609121280, SDSS J123731.44+344822.5, J1237+3448, Gaia DR2 1518352719609121280, GALEX J123731.4+344822
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 | Guo et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 12 37 31.47 (0.05) | 12 37 31.44 | 12 37 31.47 (0.09) | 12 37 31.47 | 12 37 31.44 (0.05) | 12 37 31.47 | 12 37 31.44 | |||||||||
Declination | 34 48 22.25 (0.06) | 34 48 22.46 | 34 48 22.26 (0.06) | 34 48 22.25 | 34 48 22.61 (0.06) | 34 48 22.26 | 34 48 22.51 | |||||||||
Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | DA | |||||||
Effective temperature | [K] | 8966.0 (74) | 9066.0 (71) | 8967.0 (73) | 8858.0 | 9282.0 (117) | 9029.0 (29) | |||||||||
log(g) | [cgs] | 8.28 (0.01) | 8.30 (0.01) | 8.27 (0.01) | 8.25 | 8.35 (0.02) | 8.43 (0.04) | |||||||||
Mass | [M☉] | 0.774 (0.01) | 0.785 (0.01) | 0.769 (0.01) | 0.755 | 0.818 (0.02) | 0.86 (0.03) | |||||||||
log(Luminosity) | [L☉] | |||||||||||||||
Cooling age | [Gyr] | 1.2700 | 1.1920 | |||||||||||||
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] | 12.66 (0.08) | 12.60 (0.1) | 12.60 (0.1) | 12.66 | 12.66 (0.08) | 12.60 (0.1) | |||||||||
Distance | [pc] | 78.98 (0.5) | 79.37 (0.6) | 79.34 (0.7) | 78.98 | 78.98 (0.5) | 79.34 (0.7) | |||||||||
Composition | H | H | H | |||||||||||||
Proper motion (right ascension) | [mas/yr] | 27.19401383 (0.05) | 27.2094124 (0.2) | 27.194 (0.05) | 27.2094124 | |||||||||||
Proper motion (declination) | [mas/yr] | -22.16490394 (0.09) | -22.1096173 (0.1) | -22.165 (0.09) | -22.1096173 | |||||||||||
Variability | ||||||||||||||||
Magnetic | ||||||||||||||||
Bd | [MG] | |||||||||||||||
Infrared excess (disk) | ||||||||||||||||
Binarity | ||||||||||||||||
B magnitude | ||||||||||||||||
V magnitude | ||||||||||||||||
R magnitude | ||||||||||||||||
I magnitude | ||||||||||||||||
J magnitude | 17.24 (0.03) | |||||||||||||||
H magnitude | ||||||||||||||||
K magnitude | ||||||||||||||||
u magnitude | 17.88 (0.01) | 17.88 (0.01) | 17.89 (0.01) | 17.89 (0.01) | 17.88 (0.01) | |||||||||||
g magnitude | 17.50 (0.005) | 17.50 (0.005) | 17.50 (0.005) | 17.50 (0.02) | ||||||||||||
r magnitude | 17.51 (0.005) | 17.51 (0.005) | 17.51 (0.005) | 17.52 (0.02) | ||||||||||||
i magnitude | 17.60 (0.007) | 17.60 (0.007) | 17.60 (0.007) | 17.59 (0.03) | ||||||||||||
z magnitude | 17.73 (0.02) | 17.73 (0.02) | 17.73 (0.02) | 17.75 (0.03) | ||||||||||||
G magnitude | 17.45 (0.006) | 17.48 | 17.45 | 17.45 (0.003) | 17.48 | |||||||||||
BP magnitude | 17.54 (0.006) | 17.55 | 17.55 | |||||||||||||
RP magnitude | 17.32 (0.008) | 17.32 | 17.32 | |||||||||||||
Pan g magnitude | 17.52 (0.005) | 17.52 (0.005) | ||||||||||||||
Pan r magnitude | 17.54 (0.005) | 17.54 (0.006) | ||||||||||||||
Pan i magnitude | 17.61 (0.007) | 17.61 (0.008) | ||||||||||||||
Pan z magnitude | 17.73 (0.008) | 17.73 (0.006) | ||||||||||||||
Pan y magnitude | 17.82 (0.01) | 17.82 (0.01) | ||||||||||||||
E(B-V) | 0.003 |
* 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.