All names: WIRED J074853.07+302543.5, ** SLN 10A, SDSS J074853.08+302543.6, SDSS J074853.07+302543.5, Gaia DR2 879036662822100224, WD 0745+305, Gaia EDR3 879036662822100224, WDS J07489+3026A, Gaia DR3 879036662822100224
Parameter | Unit | Gaia EDR3 | SDSS DR12 | Hardy et al. 2023a | MWDD H | Gaia DR2 | Stilism | Ferrario et al. 2015 | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 07 48 53.07 (0.2) | 07 48 53.08 | 07 48 53.07 (0.3) | 07 48 53.07 | 07 48 53.08 (0.2) | 07 48 53.08 | 07 48 52.85 | 07 48 53.08 | ||||||
Declination | 30 25 43.31 (0.1) | 30 25 43.58 | 30 25 43.32 (0.2) | 30 25 43.31 | 30 25 43.59 (0.1) | 30 25 43.55 | 30 25 39.72 | 30 25 43.56 | ||||||
Spectral type | DAH | DA | DA | DA: | DAH | DAH | DAH | DAH | DAH | |||||
Effective temperature | [K] | 23077.7 (1810) | 23488.0 | 21000.0 (2000) | 21913.0 (1967) | 29354.0 (137) | 28932.0 (116) | |||||||
log(g) | [cgs] | 8.38 (0.5) | 8.41 | 8.34 (0.08) | 9.00 (0.002) | 9.73 (0.04) | ||||||||
Mass | [M☉] | 0.8632434075257925 (0.6) | 0.877 | 0.81 (0.09) | 0.835 (0.07) | |||||||||
log(Luminosity) | [L☉] | |||||||||||||
Cooling age | [Gyr] | 0.0974 | ||||||||||||
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] | 5.20 (0.2) | 5.10 (0.4) | 5.20 | 5.20 (0.2) | |||||||||
Distance | [pc] | 192.20 (8) | 195.97 (16) | 192.20 | 192.20 (8) | |||||||||
Composition | H | |||||||||||||
Proper motion (right ascension) | [mas/yr] | -9.923091759 (0.2) | -9.780533928 (0.6) | -9.923 (0.2) | 6.3 | |||||||||
Proper motion (declination) | [mas/yr] | -17.71968625 (0.1) | -17.71848984 (0.4) | -17.72 (0.1) | -20.8 | |||||||||
Variability | ||||||||||||||
Magnetic | yes | yes | yes | yes | ||||||||||
Bd | [MG] | 8.86852104614212 | 11.4 | |||||||||||
Infrared excess (disk) | ||||||||||||||
Binarity | ||||||||||||||
B magnitude | ||||||||||||||
V magnitude | ||||||||||||||
R magnitude | ||||||||||||||
I magnitude | ||||||||||||||
J magnitude | ||||||||||||||
H magnitude | ||||||||||||||
K magnitude | ||||||||||||||
u magnitude | 17.35 (0.009) | 17.35 (0.009) | 17.39 (0.07) | 17.38 | 17.41 (0.07) | |||||||||
g magnitude | 17.41 (0.005) | 17.41 (0.005) | 17.58 (0.05) | 17.57 | 17.59 (0.05) | |||||||||
r magnitude | 17.82 (0.006) | 17.82 (0.006) | 17.87 (0.05) | 17.87 | 17.88 (0.05) | |||||||||
i magnitude | 18.20 (0.009) | 18.20 (0.009) | 18.49 (0.1) | 18.49 | 18.49 (0.1) | |||||||||
z magnitude | 18.34 (0.03) | 18.34 (0.03) | 18.55 (0.06) | 18.55 | 18.57 (0.06) | |||||||||
G magnitude | 17.72 (0.03) | 17.71 | 17.72 | 17.72 (0.004) | ||||||||||
BP magnitude | 17.36 (0.03) | 17.30 | ||||||||||||
RP magnitude | 17.65 (0.04) | 17.68 | ||||||||||||
Pan g magnitude | ||||||||||||||
Pan r magnitude | ||||||||||||||
Pan i magnitude | ||||||||||||||
Pan z magnitude | ||||||||||||||
Pan y magnitude | ||||||||||||||
E(B-V) | 0.011 |
* 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.