All names: SDSS J103127.92+444754.0, SDSS J103127.91+444754.0, GALEX J103127.8+444752, SDSS J103127.92+444754.1, Gaia DR2 830002812207609472, Gaia EDR3 830002812207609472, Gaia DR3 830002812207609472
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 10 31 27.88 (0.5) | 10 31 27.92 | 10 31 27.88 (0.7) | 10 31 27.93 (0.5) | 10 31 27.92 | ||||||
Declination | 44 47 53.68 (0.5) | 44 47 54.06 | 44 47 53.69 (0.9) | 44 47 54.11 (0.5) | 44 47 54.05 | ||||||
Spectral type | DC | DC | DC | DC | DC: | ||||||
Effective temperature | [K] | 11480.0 | 10707.0 | 10213.0 (137) | |||||||
log(g) | [cgs] | 9.52 | 9.40 | 9.12 (0.6) | |||||||
Mass | [M☉] | 1.374 | 1.324 | ||||||||
log(Luminosity) | [L☉] | ||||||||||
Cooling age | [Gyr] | 1.6340 | 1.6030 | ||||||||
log(H/He) | |||||||||||
log(C/He) | |||||||||||
log(Ca/He) | |||||||||||
log(Ca/H) | |||||||||||
Parallax | [mas] | 4.26 (0.9) | 7.11 (1) | 4.26 (0.9) | |||||||
Distance | [pc] | 234.65 (49) | 140.63 (28) | 234.65 (49) | |||||||
Composition | |||||||||||
Proper motion (right ascension) | [mas/yr] | -28.90184923 (0.6) | -26.36681954 (2) | -28.902 (0.6) | |||||||
Proper motion (declination) | [mas/yr] | -26.83487017 (0.6) | -29.65187445 (2) | -26.835 (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 | 20.71 (0.06) | 20.71 (0.06) | 20.68 (0.06) | ||||||||
g magnitude | 20.45 (0.02) | 20.45 (0.02) | 20.47 (0.04) | ||||||||
r magnitude | 20.55 (0.03) | 20.55 (0.03) | 20.55 (0.04) | ||||||||
i magnitude | 20.54 (0.05) | 20.54 (0.05) | 20.54 (0.05) | ||||||||
z magnitude | 20.98 (0.2) | 20.98 (0.2) | 20.97 (1) | ||||||||
G magnitude | 20.45 (0.09) | 20.56 | 20.45 (0.007) | ||||||||
BP magnitude | 20.67 (0.09) | 20.73 | |||||||||
RP magnitude | 20.02 (0.1) | 20.12 | |||||||||
Pan g magnitude | 20.47 (0.04) | ||||||||||
Pan r magnitude | 20.52 (0.01) | ||||||||||
Pan i magnitude | 20.63 (0.02) | ||||||||||
Pan z magnitude | 20.86 (0.06) | ||||||||||
Pan y magnitude | |||||||||||
E(B-V) | 0.013 |
* 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.