All names: Gaia EDR3 689641283811454080, SDSS J085412.32+234244.3, SDSS J085412.33+234244.3, GALEX J085412.3+234245, Gaia DR2 689641283811454080, Gaia DR3 689641283811454080, SDSS J085412.33+234244.4
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 | 08 54 12.34 (0.3) | 08 54 12.33 | 08 54 12.34 (0.4) | 08 54 12.32 (0.3) | 08 54 12.33 | |||||
Declination | 23 42 44.05 (0.1) | 23 42 44.37 | 23 42 44.06 (0.2) | 23 42 44.37 (0.1) | 23 42 44.35 | |||||
Spectral type | DA | DA | DA | DA | ||||||
Effective temperature | [K] | 14255.0 | 16041.0 (327) | |||||||
log(g) | [cgs] | 8.11 | 7.80 (0.08) | |||||||
Mass | [M☉] | 0.678 | 0.517 (0.04) | |||||||
log(Luminosity) | [L☉] | |||||||||
Cooling age | [Gyr] | 0.2733 | ||||||||
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] | 2.52 (0.4) | 2.79 (0.6) | 2.52 (0.4) | ||||||
Distance | [pc] | 396.59 (58) | 358.62 (71) | 396.59 (58) | ||||||
Composition | H | |||||||||
Proper motion (right ascension) | [mas/yr] | 19.77430622 (0.4) | 20.15928306 (0.7) | 19.774 (0.4) | ||||||
Proper motion (declination) | [mas/yr] | -19.71672668 (0.2) | -19.94338144 (0.4) | -19.717 (0.2) | ||||||
Variability | ||||||||||
Magnetic | ||||||||||
Bd | [MG] | |||||||||
Infrared excess (disk) | ||||||||||
Binarity | ||||||||||
B magnitude | ||||||||||
V magnitude | ||||||||||
R magnitude | ||||||||||
I magnitude | ||||||||||
J magnitude | ||||||||||
H magnitude | ||||||||||
K magnitude | ||||||||||
u magnitude | 19.55 (0.03) | 19.55 (0.03) | 19.56 (0.04) | |||||||
g magnitude | 19.21 (0.01) | 19.21 (0.01) | 19.22 (0.02) | |||||||
r magnitude | 19.47 (0.02) | 19.47 (0.02) | 19.49 (0.02) | |||||||
i magnitude | 19.66 (0.03) | 19.66 (0.03) | 19.66 (0.03) | |||||||
z magnitude | 19.98 (0.1) | 19.98 (0.1) | 19.99 (0.1) | |||||||
G magnitude | 19.36 (0.02) | 19.39 | 19.36 (0.004) | |||||||
BP magnitude | 19.30 (0.02) | 19.38 | ||||||||
RP magnitude | 19.42 (0.07) | 19.47 | ||||||||
Pan g magnitude | 19.23 (0.007) | |||||||||
Pan r magnitude | 19.48 (0.02) | |||||||||
Pan i magnitude | 19.75 (0.01) | |||||||||
Pan z magnitude | 20.01 (0.04) | |||||||||
Pan y magnitude | 19.82 (0.1) | |||||||||
E(B-V) | 0.026 |
* 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.