All names: SDSS J125607.24+155115.1, GALEX J125607.2+155114, Gaia EDR3 3931506719368273792, SDSS J125607.24+155115.2, J1256+1551, WDJ125607.26+155115.33, Gaia DR3 3931506719368273792, SDSS J125607.23+155115.2, Gaia DR2 3931506719368273792, ULAS J125607.22+155115.1
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 | 12 56 07.17 (0.1) | 12 56 07.24 | 12 56 07.18 (0.1) | 12 56 07.17 | 12 56 07.26 (0.1) | 12 56 07.18 | 12 56 07.24 | ||||||||
Declination | 15 51 14.84 (0.07) | 15 51 15.22 | 15 51 14.85 (0.09) | 15 51 14.84 | 15 51 15.32 (0.07) | 15 51 14.85 | 15 51 15.20 | ||||||||
Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | |||||||
Effective temperature | [K] | 8643.0 (98) | 8924.0 (90) | 8644.0 (98) | 8686.0 | 9075.0 (155) | 8702.0 (38) | ||||||||
log(g) | [cgs] | 8.39 (0.02) | 8.45 (0.02) | 8.38 (0.02) | 8.39 | 8.47 (0.03) | 8.51 (0.05) | ||||||||
Mass | [M☉] | 0.843 (0.02) | 0.882 (0.02) | 0.839 (0.02) | 0.845 | 0.896 (0.02) | 0.91 (0.03) | ||||||||
log(Luminosity) | [L☉] | ||||||||||||||
Cooling age | [Gyr] | 1.8900 | 1.7080 | ||||||||||||
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] | 12.48 (0.1) | 12.43 (0.1) | 12.43 (0.2) | 12.48 | 12.48 (0.1) | 12.43 (0.2) | ||||||||
Distance | [pc] | 80.16 (0.8) | 80.45 (1) | 80.48 (1) | 80.16 | 80.16 (0.8) | 80.48 (1) | ||||||||
Composition | H | H | H | ||||||||||||
Proper motion (right ascension) | [mas/yr] | -78.42381042 (0.1) | -78.32252673 (0.3) | -78.424 (0.1) | -78.32252673 | ||||||||||
Proper motion (declination) | [mas/yr] | -30.29734781 (0.2) | -30.51303744 (0.2) | -30.297 (0.2) | -30.51303744 | ||||||||||
Variability | |||||||||||||||
Magnetic | |||||||||||||||
Bd | [MG] | ||||||||||||||
Infrared excess (disk) | |||||||||||||||
Binarity | |||||||||||||||
B magnitude | 17.60 | ||||||||||||||
V magnitude | |||||||||||||||
R magnitude | 17.90 | ||||||||||||||
I magnitude | |||||||||||||||
J magnitude | 17.57 (0.04) | 17.56 (0.04) | |||||||||||||
H magnitude | 17.43 (0.04) | 17.43 (0.04) | |||||||||||||
K magnitude | 17.45 (0.1) | 17.45 (0.1) | |||||||||||||
u magnitude | 18.23 (0.01) | 18.23 (0.01) | 18.23 (0.01) | 18.49 (0.01) | 18.23 (0.03) | ||||||||||
g magnitude | 17.85 (0.006) | 17.85 (0.006) | 19.22 (0.01) | 17.86 (0.02) | |||||||||||
r magnitude | 17.84 (0.006) | 17.84 (0.006) | 17.85 (0.006) | 17.87 (0.02) | |||||||||||
i magnitude | 17.89 (0.008) | 17.89 (0.008) | 17.89 (0.008) | 17.86 (0.02) | |||||||||||
z magnitude | 18.04 (0.03) | 18.04 (0.03) | 21.10 (0.4) | 18.06 (0.03) | |||||||||||
G magnitude | 17.78 (0.009) | 17.81 | 17.78 | 17.78 (0.003) | 17.81 | ||||||||||
BP magnitude | 17.87 (0.009) | 17.87 | 17.87 | ||||||||||||
RP magnitude | 17.60 (0.01) | 17.61 | 17.61 | ||||||||||||
Pan g magnitude | 17.85 (0.006) | 17.85 (0.007) | |||||||||||||
Pan r magnitude | 17.86 (0.004) | 17.86 (0.004) | |||||||||||||
Pan i magnitude | 17.91 (0.007) | 17.91 (0.007) | |||||||||||||
Pan z magnitude | 18.03 (0.009) | 18.03 (0.008) | |||||||||||||
Pan y magnitude | 18.10 (0.04) | 18.10 (0.04) | |||||||||||||
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.