All names: SDSS J225707.72-085259.8, GALEX J225707.7-085259, Gaia DR2 2606979590291411840, Gaia EDR3 2606979590291411840, Gaia DR3 2606979590291411840
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 22 57 07.74 (0.4) | 22 57 07.72 | 22 57 07.74 (0.6) | 22 57 07.72 (0.4) | 22 57 07.72 | |||||
Declination | -08 53 00.83 (0.4) | -08 52 59.84 | -08 53 00.80 (0.6) | -08 52 59.71 (0.4) | -08 52 59.81 | |||||
Spectral type | DA | DA | DA | DA | ||||||
Effective temperature | [K] | 8099.0 | 7584.0 (81) | |||||||
log(g) | [cgs] | 8.19 | 7.57 (0.2) | |||||||
Mass | [M☉] | 0.715 | 0.407 (0.07) | |||||||
log(Luminosity) | [L☉] | |||||||||
Cooling age | [Gyr] | 1.4050 | ||||||||
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] | 4.83 (0.5) | 4.80 (0.9) | 4.83 (0.5) | ||||||
Distance | [pc] | 207.06 (21) | 208.45 (39) | 207.06 (21) | ||||||
Composition | H | |||||||||
Proper motion (right ascension) | [mas/yr] | 21.65596271 (0.5) | 20.727299 (1) | 21.656 (0.5) | ||||||
Proper motion (declination) | [mas/yr] | -70.02316709 (0.5) | -72.3409132 (1) | -70.023 (0.5) | ||||||
Variability | ||||||||||
Magnetic | ||||||||||
Bd | [MG] | |||||||||
Infrared excess (disk) | ||||||||||
Binarity | ||||||||||
B magnitude | ||||||||||
V magnitude | ||||||||||
R magnitude | ||||||||||
I magnitude | ||||||||||
J magnitude | ||||||||||
H magnitude | ||||||||||
K magnitude | ||||||||||
u magnitude | 20.47 (0.07) | 20.47 (0.07) | 20.54 (0.07) | |||||||
g magnitude | 19.90 (0.02) | 19.90 (0.02) | 19.89 (0.03) | |||||||
r magnitude | 19.82 (0.02) | 19.82 (0.02) | 19.84 (0.03) | |||||||
i magnitude | 19.83 (0.03) | 19.83 (0.03) | 19.84 (0.04) | |||||||
z magnitude | 19.86 (0.1) | 19.86 (0.1) | 19.90 (0.1) | |||||||
G magnitude | 19.80 (0.09) | 19.84 | 19.80 (0.006) | |||||||
BP magnitude | 19.81 (0.09) | 19.89 | ||||||||
RP magnitude | 19.31 (0.07) | 19.10 | ||||||||
Pan g magnitude | 19.90 (0.03) | |||||||||
Pan r magnitude | 19.83 (0.01) | |||||||||
Pan i magnitude | 19.81 (0.02) | |||||||||
Pan z magnitude | 20.08 (0.04) | |||||||||
Pan y magnitude | 19.63 (0.1) | |||||||||
E(B-V) | 0.034 |
* 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.