All names: SDSS J143144.83+375011.9, Gaia DR3 1487348067958833536, Gaia EDR3 1487348067958833536, Gaia DR2 1487348067958833536, WD 1429+380, SDSS J143144.83+375011.8, WIRED J143144.83+375011.8, J1431+3750
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Coutu et al. 2019 | Gaia DR2 | Stilism | Koester et al. 2006 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 14 31 44.76 (0.2) | 14 31 44.83 | 14 31 44.85 | 14 31 44.76 (0.2) | 14 31 44.76 | 14 31 44.85 (0.2) | 14 31 44.93 | 14 31 44.83 | |||||
Declination | 37 50 12.13 (0.2) | 37 50 11.88 | 37 50 11.79 | 37 50 12.12 (0.2) | 37 50 12.13 | 37 50 11.79 (0.2) | 37 50 04.92 | 37 50 11.88 | |||||
Spectral type | DQ | DQ | DQ: | DQ | DQ8.2 | DQ | DQ | ||||||
Effective temperature | [K] | 6319.0 (132) | 6173.0 | 6758.0 (80) | 6309.0 (15) | ||||||||
log(g) | [cgs] | 7.37 | 8.00 (0) | 7.57 (0.05) | 10.00 (0.009) | ||||||||
Mass | [M☉] | 0.2747 | 0.353 (0.03) | ||||||||||
log(Luminosity) | [L☉] | ||||||||||||
Cooling age | [Gyr] | 1.0400 | |||||||||||
log(H/He) | |||||||||||||
log(C/He) | -6.9676 (0.1) | -6.97 (0.02) | |||||||||||
log(Ca/He) | |||||||||||||
log(Ca/H) | |||||||||||||
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] | 6.54 (0.2) | 6.32 | 6.32 (0.3) | 6.54 | 6.54 (0.2) | |||||||
Distance | [pc] | 152.80 (6) | 158.21 (8) | 158.21 (8) | 152.80 | 152.80 (6) | |||||||
Composition | He | He | |||||||||||
Proper motion (right ascension) | [mas/yr] | -64.16581048 (0.2) | -64.70376259 (0.4) | -64.166 (0.2) | |||||||||
Proper motion (declination) | [mas/yr] | 21.23788624 (0.2) | 21.14810638 (0.5) | 21.238 (0.2) | |||||||||
Variability | |||||||||||||
Magnetic | |||||||||||||
Bd | [MG] | ||||||||||||
Infrared excess (disk) | |||||||||||||
Binarity | |||||||||||||
B magnitude | 19.25 | ||||||||||||
V magnitude | 19.18 | ||||||||||||
R magnitude | |||||||||||||
I magnitude | |||||||||||||
J magnitude | |||||||||||||
H magnitude | |||||||||||||
K magnitude | |||||||||||||
u magnitude | 19.93 (0.04) | 19.93 (0.04) | 19.99 (0.04) | ||||||||||
g magnitude | 19.33 (0.01) | 19.33 (0.01) | 19.33 (0.02) | ||||||||||
r magnitude | 19.05 (0.01) | 19.05 (0.01) | 19.05 (0.02) | ||||||||||
i magnitude | 19.01 (0.01) | 19.01 (0.01) | 19.02 (0.02) | ||||||||||
z magnitude | 19.06 (0.05) | 19.06 (0.05) | 19.06 (0.06) | ||||||||||
G magnitude | 19.12 (0.03) | 19.12 | 19.12 | 19.12 (0.004) | |||||||||
BP magnitude | 19.32 (0.03) | 19.25 | |||||||||||
RP magnitude | 18.74 (0.02) | 18.69 | |||||||||||
Pan g magnitude | 19.28 (0.01) | ||||||||||||
Pan r magnitude | 19.06 (0.01) | ||||||||||||
Pan i magnitude | 19.02 (0.007) | ||||||||||||
Pan z magnitude | 19.06 (0.02) | ||||||||||||
Pan y magnitude | 18.98 (0.03) | ||||||||||||
E(B-V) | 0.015 |
* 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.