All names: Gaia DR3 30269452033850624, 2MASS J03173802+1446240, GALEX J031738.0+144624, PG0314+146, GSC 00655-00182, UCAC3 210-12622, Gaia DR2 30269452033850624, GALEX J031737.9+144622, PG 0314+146, UCAC2 36939140, US 3815, TIC 333703065, TYC 655-182-1
Parameter | Unit | Geier 2020 | Stilism | Simbad |
---|---|---|---|---|
Right ascension | 03 17 38.05 | 03 17 38.03 (0.04) | ||
Declination | 14 46 25.71 | 14 46 24.05 (0.04) | ||
Spectral type | He-sdO | sdOC7VIIHe40 | ||
Effective temperature | [K] | 47520.0 (1030) | ||
log(g) | [cgs] | 5.96 (0.2) | ||
Mass | [M☉] | |||
log(Luminosity) | [L☉] | |||
Cooling age | [Gyr] | |||
log(H/He) | ||||
log(C/He) | ||||
log(Ca/He) | ||||
log(Ca/H) | ||||
Parallax | [mas] | 2.20 (0.09) | 2.20 (0.05) | |
Distance | [pc] | 453.80 (19) | 454.03 (10) | |
Composition | ||||
Proper motion (right ascension) | [mas/yr] | -9.148 (0.2) | -9.237 (0.06) | |
Proper motion (declination) | [mas/yr] | -29.519 (0.2) | -29.538 (0.05) | |
Variability | ||||
Magnetic | ||||
Bd | [MG] | |||
Infrared excess (disk) | ||||
Binarity | ||||
B magnitude | 12.42 (0.2) | |||
V magnitude | 12.73 (0.3) | |||
R magnitude | 12.96 (0.2) | |||
I magnitude | ||||
J magnitude | 12.84 (0.02) | 12.84 (0.02) | ||
H magnitude | 12.91 (0.03) | 12.91 (0.03) | ||
K magnitude | 13.03 (0.03) | 13.03 (0.03) | ||
u magnitude | ||||
g magnitude | ||||
r magnitude | ||||
i magnitude | ||||
z magnitude | ||||
G magnitude | 12.52 (0.0007) | 12.50 (0.003) | ||
BP magnitude | 12.39 (0.007) | |||
RP magnitude | 12.62 (0.003) | |||
Pan g magnitude | 12.30 | |||
Pan r magnitude | 12.68 | |||
Pan i magnitude | 12.95 | |||
Pan z magnitude | 13.19 (0.0004) | |||
Pan y magnitude | 13.32 (0.005) | |||
E(B-V) | 0.180 |
* 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.