All names: SDSS J075709.19+464609.8, Gaia DR3 932673043343645952, Gaia DR2 932673039047389952, SDSS J075709.20+464610.0, SDSS J075709.20+464610.01, Gaia EDR3 932673043343645952, GALEX J075709.1+464610
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 07 57 09.16 (0.7) | 07 57 09.19 | 07 57 09.16 (2) | 07 57 09.19 (0.7) | |||||||
Declination | 46 46 09.40 (0.5) | 46 46 09.82 | 46 46 09.41 (0.7) | 46 46 09.82 (0.5) | |||||||
Spectral type | DC | DC | DC | DC | DC | ||||||
Effective temperature | [K] | 7411.0 | 7343.0 | 10629.0 (1000) | |||||||
log(g) | [cgs] | 7.39 | 7.35 | 6.84 (0.5) | |||||||
Mass | [M☉] | 0.307 | 0.274 | ||||||||
log(Luminosity) | [L☉] | ||||||||||
Cooling age | [Gyr] | 0.6979 | 0.7218 | ||||||||
log(H/He) | |||||||||||
log(C/He) | |||||||||||
log(Ca/He) | |||||||||||
log(Ca/H) | |||||||||||
Parallax | [mas] | 2.79 (0.8) | 2.66 (1) | 2.79 (0.8) | |||||||
Distance | [pc] | 358.20 (97) | 375.52 (168) | 358.20 (97) | |||||||
Composition | |||||||||||
Proper motion (right ascension) | [mas/yr] | -21.83221877 (0.9) | -24.87830465 (3) | -21.832 (0.9) | |||||||
Proper motion (declination) | [mas/yr] | -26.23483826 (0.6) | -25.69819793 (1) | -26.235 (0.6) | |||||||
Variability | |||||||||||
Magnetic | |||||||||||
Bd | [MG] | ||||||||||
Infrared excess (disk) | |||||||||||
Binarity | |||||||||||
B magnitude | |||||||||||
V magnitude | |||||||||||
R magnitude | |||||||||||
I magnitude | |||||||||||
J magnitude | |||||||||||
H magnitude | |||||||||||
K magnitude | |||||||||||
u magnitude | 21.06 (0.1) | 21.06 (0.1) | 21.07 (0.1) | ||||||||
g magnitude | 20.42 (0.02) | 20.42 (0.02) | 20.43 (0.03) | ||||||||
r magnitude | 20.31 (0.03) | 20.31 (0.03) | 20.32 (0.03) | ||||||||
i magnitude | 20.32 (0.04) | 20.32 (0.04) | 20.32 (0.04) | ||||||||
z magnitude | 20.37 (0.2) | 20.37 (0.1) | 20.37 (0.1) | ||||||||
G magnitude | 20.31 (0.08) | 20.35 | 20.31 (0.008) | ||||||||
BP magnitude | 20.48 (0.08) | 20.42 | |||||||||
RP magnitude | 20.05 (0.1) | 20.10 | |||||||||
Pan g magnitude | 20.44 (0.02) | ||||||||||
Pan r magnitude | 20.35 (0.03) | ||||||||||
Pan i magnitude | 20.36 (0.02) | ||||||||||
Pan z magnitude | 20.28 (0.1) | ||||||||||
Pan y magnitude | 19.79 (0.2) | ||||||||||
E(B-V) | 0.036 |
* 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.