All names: Gaia DR3 867132868902565760, SDSS J074555.04+231843.2, SDSS J074555.04+231843.3, Gaia DR2 867132868902565760, Gaia EDR3 867132868902565760, SDSS J074555.03+231843.3
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 | 07 45 55.02 (0.3) | 07 45 55.04 | 07 45 55.02 (0.4) | 07 45 55.03 (0.3) | 07 45 55.04 | ||||||
Declination | 23 18 43.20 (0.2) | 23 18 43.32 | 23 18 43.20 (0.3) | 23 18 43.41 (0.2) | 23 18 43.28 | ||||||
Spectral type | DC | DC | DC | DC | DC | ||||||
Effective temperature | [K] | 8799.0 | 8560.0 | 10100.0 (34) | |||||||
log(g) | [cgs] | 8.40 | 8.32 | 9.05 (0.7) | |||||||
Mass | [M☉] | 0.852 | 0.785 | ||||||||
log(Luminosity) | [L☉] | ||||||||||
Cooling age | [Gyr] | 1.6880 | 1.5970 | ||||||||
log(H/He) | |||||||||||
log(C/He) | |||||||||||
log(Ca/He) | |||||||||||
log(Ca/H) | |||||||||||
Parallax | [mas] | 6.12 (0.3) | 6.22 (0.5) | 6.12 (0.3) | |||||||
Distance | [pc] | 163.33 (8) | 160.76 (12) | 163.33 (8) | |||||||
Composition | |||||||||||
Proper motion (right ascension) | [mas/yr] | -14.29497156 (0.3) | -15.42515884 (0.8) | -14.295 (0.3) | |||||||
Proper motion (declination) | [mas/yr] | -13.2000351 (0.3) | -12.73222791 (0.6) | -13.2 (0.3) | |||||||
Variability | |||||||||||
Magnetic | |||||||||||
Bd | [MG] | ||||||||||
Infrared excess (disk) | |||||||||||
Binarity | |||||||||||
B magnitude | |||||||||||
V magnitude | |||||||||||
R magnitude | |||||||||||
I magnitude | |||||||||||
J magnitude | |||||||||||
H magnitude | |||||||||||
K magnitude | |||||||||||
u magnitude | 19.58 (0.03) | 19.58 (0.03) | 19.59 (0.03) | ||||||||
g magnitude | 19.33 (0.01) | 19.33 (0.01) | 19.33 (0.02) | ||||||||
r magnitude | 19.29 (0.01) | 19.29 (0.01) | 19.26 (0.02) | ||||||||
i magnitude | 19.38 (0.02) | 19.38 (0.02) | 19.37 (0.02) | ||||||||
z magnitude | 19.53 (0.06) | 19.53 (0.06) | 19.51 (0.06) | ||||||||
G magnitude | 19.27 (0.05) | 19.31 | 19.27 (0.004) | ||||||||
BP magnitude | 19.43 (0.05) | 19.25 | |||||||||
RP magnitude | 19.15 (0.07) | 18.96 | |||||||||
Pan g magnitude | 19.32 (0.006) | ||||||||||
Pan r magnitude | 19.33 (0.005) | ||||||||||
Pan i magnitude | 19.42 (0.01) | ||||||||||
Pan z magnitude | 19.50 (0.02) | ||||||||||
Pan y magnitude | 19.59 (0.04) | ||||||||||
E(B-V) | 0.007 |
* 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.