All names: SDSS J081933.29+293334.3, WDJ081933.29+293334.55, 2MASS J08193327+2933344, Gaia DR3 708292166410436608, PG 0816+297, TIC 462513335, LAMOST J081933.29+293333.3, SDSS J081933.28+293334.3, SDSS J081933.29+293334.1, J0819+2933, Gaia EDR3 708292166410436608, WD 0816+297, Gaia DR2 708292166410436608, GALEX J081933.3+293334
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Guo et al. 2015 | Gianninas et al. 2011 | Liebert et al. 2005 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 08 19 33.29 (0.04) | 08 19 33.29 (0.05) | 08 19 33.29 | 08 19 33.29 (0.04) | 08 19 33.29 | 08 19 33.07 | |||||||||
Declination | 29 33 32.62 (0.03) | 29 33 32.68 (0.04) | 29 33 32.62 | 29 33 34.55 (0.03) | 29 33 32.68 | 29 33 38.52 | |||||||||
Spectral type | DA | DA | DA | DA | DA | DA | DA2.9 | DA3 | |||||||
Effective temperature | [K] | 17064.0 (222) | 17064.0 (222) | 15732.0 | 16371.0 (371) | 17200.0 (276) | 16660.0 (267) | 17273.0 (239) | |||||||
log(g) | [cgs] | 7.92 (0.01) | 7.92 (0.01) | 7.83 | 7.79 (0.08) | 7.93 (0.05) | 7.84 (0.05) | 7.94 (0.01) | |||||||
Mass | [M☉] | 0.571 (0.008) | 0.571 (0.009) | 0.52 | 0.5 (0.04) | 0.58 (0.03) | 0.53 (0.03) | 0.582 (0.01) | |||||||
log(Luminosity) | [L☉] | -1.83 | |||||||||||||
Cooling age | [Gyr] | 0.1262 | 0.1288 | ||||||||||||
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] | 10.63 (0.04) | 10.63 (0.07) | 10.63 | 10.63 (0.04) | 10.63 (0.07) | |||||||||
Distance | [pc] | 94.04 (0.4) | 94.06 (0.6) | 100.00 | 105.00 | 94.04 | 94.05 (0.4) | 94.06 (0.6) | |||||||
Composition | H | H | H | ||||||||||||
Proper motion (right ascension) | [mas/yr] | 5.31667923 (0.04) | 5.205796016 (0.1) | 5.317 (0.04) | 5.205796015 | ||||||||||
Proper motion (declination) | [mas/yr] | -120.3686557 (0.03) | -120.3174705 (0.07) | -120.369 (0.03) | -120.3174705 | ||||||||||
Variability | |||||||||||||||
Magnetic | |||||||||||||||
Bd | [MG] | ||||||||||||||
Infrared excess (disk) | |||||||||||||||
Binarity | |||||||||||||||
B magnitude | 15.95 | ||||||||||||||
V magnitude | 15.93 | ||||||||||||||
R magnitude | |||||||||||||||
I magnitude | |||||||||||||||
J magnitude | 16.27 (0.01) | ||||||||||||||
H magnitude | 16.27 (0.02) | ||||||||||||||
K magnitude | 16.31 (0.04) | ||||||||||||||
u magnitude | 15.81 (0.005) | 15.82 (0.005) | |||||||||||||
g magnitude | 15.65 (0.003) | 15.63 (0.003) | |||||||||||||
r magnitude | 15.99 (0.004) | 15.98 (0.004) | |||||||||||||
i magnitude | 16.25 (0.004) | 16.24 (0.004) | |||||||||||||
z magnitude | 16.53 (0.008) | 16.53 (0.009) | |||||||||||||
G magnitude | 15.83 (0.003) | 15.85 | 15.83 | 15.83 (0.003) | 15.85 | ||||||||||
BP magnitude | 15.77 (0.003) | 15.75 | 15.75 | ||||||||||||
RP magnitude | 15.97 (0.006) | 15.97 | 15.97 | ||||||||||||
Pan g magnitude | 15.70 (0.006) | ||||||||||||||
Pan r magnitude | 16.00 (0.002) | ||||||||||||||
Pan i magnitude | 16.28 (0.002) | ||||||||||||||
Pan z magnitude | 16.54 (0.004) | ||||||||||||||
Pan y magnitude | 16.68 (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.