All names: SDSS J083822.45+561955.03, Gaia DR3 1034174867282580352, Gaia EDR3 1034174867282580352, GALEX J083822.4+561955, Gaia DR2 1034174871578688768, SDSS J083822.45+561955.0
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Kepler et al. 2016 | Simbad |
---|---|---|---|---|---|---|---|
Right ascension | 08 38 22.49 (0.8) | 08 38 22.45 | 08 38 22.49 (2) | 08 38 22.45 (0.8) | |||
Declination | 56 19 54.92 (0.9) | 56 19 55.04 | 56 19 54.91 (1) | 56 19 54.94 (0.9) | |||
Spectral type | DA+M | DA+M | |||||
Effective temperature | [K] | 16521.0 (465) | |||||
log(g) | [cgs] | 8.27 (0.09) | |||||
Mass | [M☉] | 0.773 (0.06) | |||||
log(Luminosity) | [L☉] | ||||||
Cooling age | [Gyr] | ||||||
log(H/He) | |||||||
log(C/He) | |||||||
log(Ca/He) | |||||||
log(Ca/H) | |||||||
Parallax | [mas] | -0.57 (1) | |||||
Distance | [pc] | ||||||
Composition | |||||||
Proper motion (right ascension) | [mas/yr] | 22.13253949 (0.9) | 22.133 (0.9) | ||||
Proper motion (declination) | [mas/yr] | -1.344172042 (0.9) | -1.344 (0.9) | ||||
Variability | |||||||
Magnetic | |||||||
Bd | [MG] | ||||||
Infrared excess (disk) | |||||||
Binarity | |||||||
B magnitude | |||||||
V magnitude | |||||||
R magnitude | |||||||
I magnitude | |||||||
J magnitude | |||||||
H magnitude | |||||||
K magnitude | |||||||
u magnitude | 20.93 (0.09) | 20.90 (0.08) | 20.90 (0.08) | ||||
g magnitude | 20.52 (0.02) | 20.52 (0.03) | 20.53 (0.02) | ||||
r magnitude | 20.50 (0.04) | 20.49 (0.04) | 20.49 (0.04) | ||||
i magnitude | 19.92 (0.03) | 19.93 (0.04) | 19.92 (0.03) | ||||
z magnitude | 19.37 (0.07) | 19.36 (0.07) | 19.36 (0.07) | ||||
G magnitude | 20.63 (0.09) | 20.54 | 20.63 (0.01) | ||||
BP magnitude | 20.49 (0.09) | 20.50 | |||||
RP magnitude | 19.43 (0.07) | 19.57 | |||||
Pan g magnitude | 20.47 (0.02) | ||||||
Pan r magnitude | 20.45 (0.02) | ||||||
Pan i magnitude | 19.96 (0.01) | ||||||
Pan z magnitude | 19.49 (0.03) | ||||||
Pan y magnitude | 19.13 (0.04) | ||||||
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.