All names: GALEX J081101.6+404258, WD 0807+408, Gaia DR2 921585014037470464, Gaia DR3 921585014037470464, Gaia EDR3 921585014037470464, SDSS J081101.60+404257.5, SDSS J081101.60+404257.6, SDSS J081101.59+404257.4
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 08 11 01.58 (0.4) | 08 11 01.60 | 08 11 01.58 (0.6) | 08 11 01.60 (0.4) | 08 11 01.60 | 08 11 01.44 | 08 11 01.60 | ||||||
Declination | 40 42 57.24 (0.4) | 40 42 57.49 | 40 42 57.25 (0.5) | 40 42 57.51 (0.4) | 40 42 57.58 | 40 42 52.20 | 40 42 57.56 | ||||||
Spectral type | DC: | DC: | DC | DC: | DC: | DC: | DC:+MS | ||||||
Effective temperature | [K] | 9728.0 | 9880.0 | 11193.0 (470) | 10874.0 (443) | ||||||||
log(g) | [cgs] | 7.73 | 7.69 | 7.90 (0.5) | 8.24 (0.6) | ||||||||
Mass | [M☉] | 0.456 | 0.415 | ||||||||||
log(Luminosity) | [L☉] | ||||||||||||
Cooling age | [Gyr] | 0.4711 | 0.4396 | ||||||||||
log(H/He) | |||||||||||||
log(C/He) | |||||||||||||
log(Ca/He) | |||||||||||||
log(Ca/H) | |||||||||||||
Parallax | [mas] | 3.76 (0.5) | 2.53 (0.8) | 3.76 (0.5) | |||||||||
Distance | [pc] | 265.68 (36) | 395.69 (126) | 265.67 (36) | |||||||||
Composition | |||||||||||||
Proper motion (right ascension) | [mas/yr] | -12.21186599 (0.5) | -12.07903641 (1) | -12.212 (0.5) | -17.8 | ||||||||
Proper motion (declination) | [mas/yr] | -16.8349516 (0.4) | -14.2976041 (1) | -16.835 (0.4) | -27.0 | ||||||||
Variability | |||||||||||||
Magnetic | |||||||||||||
Bd | [MG] | ||||||||||||
Infrared excess (disk) | |||||||||||||
Binarity | WDMS | ||||||||||||
B magnitude | |||||||||||||
V magnitude | |||||||||||||
R magnitude | |||||||||||||
I magnitude | |||||||||||||
J magnitude | |||||||||||||
H magnitude | |||||||||||||
K magnitude | |||||||||||||
u magnitude | 19.94 (0.04) | 19.94 (0.04) | 20.01 (0.04) | 20.01 | 20.03 (0.04) | ||||||||
g magnitude | 19.85 (0.01) | 19.85 (0.01) | 19.82 (0.03) | 19.82 | 19.82 (0.03) | ||||||||
r magnitude | 19.94 (0.02) | 19.94 (0.02) | 19.91 (0.03) | 19.91 | 19.91 (0.03) | ||||||||
i magnitude | 20.10 (0.03) | 20.11 (0.03) | 20.09 (0.03) | 20.09 | 20.09 (0.03) | ||||||||
z magnitude | 20.41 (0.1) | 20.41 (0.1) | 20.41 (0.1) | 20.41 | 20.43 (0.1) | ||||||||
G magnitude | 19.86 (0.05) | 19.92 | 19.86 (0.007) | ||||||||||
BP magnitude | 19.94 (0.05) | 19.97 | |||||||||||
RP magnitude | 19.81 (0.1) | 19.88 | |||||||||||
Pan g magnitude | 19.87 (0.01) | ||||||||||||
Pan r magnitude | 19.95 (0.01) | ||||||||||||
Pan i magnitude | 20.11 (0.01) | ||||||||||||
Pan z magnitude | 20.22 (0.03) | ||||||||||||
Pan y magnitude | 19.98 (0.2) | ||||||||||||
E(B-V) | 0.021 |
* 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.