All names: Gaia DR2 4975866534658142976, EC 00292-4741, CD-48 106, uvby98 600001559, GEN# +6.00001559, HIP 2499, JL 194, GALEX J003141.3-472519, UBV M 42239, uvby98 -004800106, LB 1559, TIC 80290366, GSC 08024-00844, TYC 8024-844-1, HIC 2499, 2MASS J00314165-4725200, JL194, Gaia DR3 4975866534658142976
Parameter | Unit | Geier 2020 | Stilism | Simbad |
---|---|---|---|---|
Right ascension | 00 31 41.62 | 00 31 41.65 (0.02) | ||
Declination | -47 25 19.80 | -47 25 20.03 (0.02) | ||
Spectral type | sdBV | sdB | ||
Effective temperature | [K] | 25200.0 (1200) | ||
log(g) | [cgs] | 5.20 (0.2) | ||
Mass | [M☉] | |||
log(Luminosity) | [L☉] | |||
Cooling age | [Gyr] | |||
log(H/He) | ||||
log(C/He) | ||||
log(Ca/He) | ||||
log(Ca/H) | ||||
Parallax | [mas] | 1.99 (0.05) | 2.09 (0.04) | |
Distance | [pc] | 502.08 (13) | 478.29 (9) | |
Composition | ||||
Proper motion (right ascension) | [mas/yr] | 20.929 (0.04) | 20.948 (0.02) | |
Proper motion (declination) | [mas/yr] | -26.607 (0.06) | -26.381 (0.03) | |
Variability | ||||
Magnetic | ||||
Bd | [MG] | |||
Infrared excess (disk) | ||||
Binarity | ||||
B magnitude | 12.12 | |||
V magnitude | 12.45 | |||
R magnitude | ||||
I magnitude | ||||
J magnitude | 12.99 (0.03) | 12.99 (0.03) | ||
H magnitude | 13.08 (0.03) | 13.08 (0.03) | ||
K magnitude | 13.16 (0.04) | 13.16 (0.04) | ||
u magnitude | ||||
g magnitude | ||||
r magnitude | ||||
i magnitude | ||||
z magnitude | ||||
G magnitude | 12.39 (0.0003) | 12.36 (0.003) | ||
BP magnitude | 12.18 (0.004) | |||
RP magnitude | 12.63 (0.001) | |||
Pan g magnitude | ||||
Pan r magnitude | ||||
Pan i magnitude | ||||
Pan z magnitude | ||||
Pan y magnitude | ||||
E(B-V) | 0.009 |
* 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.