All names: SDSS J002502.98+181909.7, SDSS J002502.98+181909.78, Gaia DR3 2794171444920541056, GALEX J002503.0+181911, Gaia EDR3 2794171444920541056, Gaia DR2 2794171444920541056
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Stilism | Kepler et al. 2016 | Simbad | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|
Right ascension | 00 25 03.02 (1) | 00 25 02.98 | 00 25 02.95 (1) | |||||
Declination | 18 19 09.80 (0.8) | 18 19 09.78 | 18 19 09.93 (0.8) | |||||
Spectral type | DC: | DC | DC | |||||
Effective temperature | [K] | 8018.0 (249) | ||||||
log(g) | [cgs] | 8.00 (0) | ||||||
Mass | [M☉] | |||||||
log(Luminosity) | [L☉] | |||||||
Cooling age | [Gyr] | |||||||
log(H/He) | ||||||||
log(C/He) | ||||||||
log(Ca/He) | ||||||||
log(Ca/H) | ||||||||
Parallax | [mas] | 3.97 (1) | 3.97 (1) | |||||
Distance | [pc] | 251.58 (93) | 251.58 (93) | |||||
Composition | ||||||||
Proper motion (right ascension) | [mas/yr] | 57.13054858 (2) | 57.131 (2) | |||||
Proper motion (declination) | [mas/yr] | -7.874038815 (1) | -7.874 (1) | |||||
Variability | ||||||||
Magnetic | ||||||||
Bd | [MG] | |||||||
Infrared excess (disk) | ||||||||
Binarity | ||||||||
B magnitude | ||||||||
V magnitude | ||||||||
R magnitude | ||||||||
I magnitude | ||||||||
J magnitude | ||||||||
H magnitude | ||||||||
K magnitude | ||||||||
u magnitude | 21.47 (0.1) | 21.42 (0.1) | 21.42 (0.1) | |||||
g magnitude | 20.94 (0.03) | 20.97 (0.03) | 20.97 (0.03) | |||||
r magnitude | 20.77 (0.04) | 20.80 (0.04) | 20.80 (0.04) | |||||
i magnitude | 20.75 (0.06) | 20.73 (0.05) | 20.73 (0.05) | |||||
z magnitude | 21.03 (0.2) | 20.90 (0.2) | 20.90 (0.2) | |||||
G magnitude | 20.74 (0.2) | 20.74 (0.01) | ||||||
BP magnitude | 20.61 (0.2) | |||||||
RP magnitude | 20.58 (0.1) | |||||||
Pan g magnitude | 20.88 (0.02) | |||||||
Pan r magnitude | 20.76 (0.02) | |||||||
Pan i magnitude | 20.74 (0.03) | |||||||
Pan z magnitude | 20.72 (0.04) | |||||||
Pan y magnitude | ||||||||
E(B-V) | 0.033 |
* 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.