All names: Gaia EDR3 4422344004387082624, GALEX J151755.4+033349, SDSS J151755.47+033349.9, SDSS J151755.48+033349.7, Gaia DR2 4422344000091179392, SDSS J151755.47+033349.7, SDSS J151755.48+033349.72
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Gaia DR2 | Kepler et al. 2015 | Simbad |
---|---|---|---|---|---|---|---|
Right ascension | 15 17 55.46 (2) | 15 17 55.47 | 15 17 55.46 (11) | 15 17 55.47 (10) | |||
Declination | 03 33 49.51 (4) | 03 33 49.92 | 03 33 49.53 (2) | 03 33 49.92 (10) | |||
Spectral type | DA | DA | |||||
Effective temperature | [K] | 7335.0 (50) | |||||
log(g) | [cgs] | 8.89 (0.07) | |||||
Mass | [M☉] | 1.113 (0.03) | |||||
log(Luminosity) | [L☉] | ||||||
Cooling age | [Gyr] | ||||||
log(H/He) | |||||||
log(C/He) | |||||||
log(Ca/He) | |||||||
log(Ca/H) | |||||||
Parallax | [mas] | ||||||
Distance | [pc] | ||||||
Composition | |||||||
Proper motion (right ascension) | [mas/yr] | ||||||
Proper motion (declination) | [mas/yr] | ||||||
Variability | |||||||
Magnetic | |||||||
Bd | [MG] | ||||||
Infrared excess (disk) | |||||||
Binarity | |||||||
B magnitude | |||||||
V magnitude | |||||||
R magnitude | |||||||
I magnitude | |||||||
J magnitude | |||||||
H magnitude | |||||||
K magnitude | |||||||
u magnitude | 18.93 (0.02) | 19.00 (0.02) | 18.93 (0.02) | ||||
g magnitude | 18.70 (0.008) | 18.76 (0.02) | 18.70 (0.008) | ||||
r magnitude | 18.78 (0.01) | 18.86 (0.02) | 18.78 (0.01) | ||||
i magnitude | 18.90 (0.01) | 18.99 (0.02) | 18.90 (0.01) | ||||
z magnitude | 18.98 (0.05) | 19.08 (0.05) | 18.98 (0.05) | ||||
G magnitude | 19.35 (0.04) | 19.18 | |||||
BP magnitude | 18.80 (0.04) | 18.69 | |||||
RP magnitude | 18.61 (0.08) | 18.51 | |||||
Pan g magnitude | 18.74 (0.02) | ||||||
Pan r magnitude | 18.87 (0.01) | ||||||
Pan i magnitude | 19.02 (0.01) | ||||||
Pan z magnitude | 19.17 (0.05) | ||||||
Pan y magnitude | 19.26 (0.03) | ||||||
E(B-V) |
* 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.