All names: SDSS J094500.05+422626.4, Gaia DR3 819687499055488768, GALEX J094500.1+422627, SDSS J094500.06+422626.5, Gaia DR2 819687499055488768, Gaia EDR3 819687499055488768, WD 0941+426, SDSS J094500.04+422626.4
Parameter | Unit | Gaia EDR3 | SDSS DR12 | Hardy et al. 2023a | MWDD H | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 09 45 00.04 (0.7) | 09 45 00.04 | 09 45 00.04 (0.9) | 09 45 00.06 (0.7) | 09 45 00.06 | 09 45 00.17 | 09 45 00.06 | |||||
Declination | 42 26 26.09 (0.5) | 42 26 26.44 | 42 26 26.10 (0.8) | 42 26 26.49 (0.5) | 42 26 26.46 | 42 26 22.56 | 42 26 26.48 | |||||
Spectral type | DA | DAH | DAH | DA: | DA: | DAH | DA | |||||
Effective temperature | [K] | 21458.1 (893) | 25862.0 | 20496.0 (1075) | 21203.0 (1097) | |||||||
log(g) | [cgs] | 7.37 (0.2) | 6.70 | 7.79 (0.3) | 7.73 (0.3) | |||||||
Mass | [M☉] | 0.3586722268729285 (0.1) | 0.245 | |||||||||
log(Luminosity) | [L☉] | |||||||||||
Cooling age | [Gyr] | |||||||||||
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] | 0.68 (0.9) | -0.33 (1) | 0.68 (0.9) | ||||||||
Distance | [pc] | 1472.67 (1872) | 1472.75 (1873) | |||||||||
Composition | H | |||||||||||
Proper motion (right ascension) | [mas/yr] | -14.6573134 (1) | -16.61982794 (2) | -14.657 (1) | 2.3 | |||||||
Proper motion (declination) | [mas/yr] | -25.11375354 (0.7) | -24.11461841 (1) | -25.114 (0.7) | -24.2 | |||||||
Variability | ||||||||||||
Magnetic | ||||||||||||
Bd | [MG] | |||||||||||
Infrared excess (disk) | ||||||||||||
Binarity | ||||||||||||
B magnitude | ||||||||||||
V magnitude | ||||||||||||
R magnitude | ||||||||||||
I magnitude | ||||||||||||
J magnitude | ||||||||||||
H magnitude | ||||||||||||
K magnitude | ||||||||||||
u magnitude | 20.36 (0.05) | 20.38 (0.05) | 20.36 (0.06) | 20.36 | 20.35 (0.05) | |||||||
g magnitude | 20.34 (0.02) | 20.33 (0.02) | 20.34 (0.03) | 20.34 | 20.33 (0.03) | |||||||
r magnitude | 20.72 (0.04) | 20.72 (0.04) | 20.71 (0.04) | 20.71 (0.04) | ||||||||
i magnitude | 21.16 (0.08) | 21.16 (0.08) | 21.11 (0.1) | 21.11 (0.1) | ||||||||
z magnitude | 21.36 (0.3) | 21.38 (0.3) | 21.38 (0.3) | 21.38 (0.3) | ||||||||
G magnitude | 20.60 (0.05) | 20.66 | 20.60 (0.009) | |||||||||
BP magnitude | 20.37 (0.05) | 20.36 | ||||||||||
RP magnitude | 20.67 (0.2) | 20.25 | ||||||||||
Pan g magnitude | ||||||||||||
Pan r magnitude | ||||||||||||
Pan i magnitude | ||||||||||||
Pan z magnitude | ||||||||||||
Pan y magnitude | ||||||||||||
E(B-V) | 0.018 |
* 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.