All names: GALEX J073935.7+564233, Gaia DR2 986254272189606656, LAMOSTJ073935.74+564233.2, Gaia DR3 986254272189606656, LAMOST J073935.74+564233.2, TIC 742806233
Parameter | Unit | Geier 2020 | Stilism | Simbad |
---|---|---|---|---|
Right ascension | 07 39 35.75 | 07 39 35.75 (0.04) | ||
Declination | 56 42 33.27 | 56 42 33.24 (0.04) | ||
Spectral type | sdB | sdB/sdO | ||
Effective temperature | [K] | 29242.0 (381) | ||
log(g) | [cgs] | 5.77 (0.09) | ||
Mass | [M☉] | |||
log(Luminosity) | [L☉] | |||
Cooling age | [Gyr] | |||
log(H/He) | ||||
log(C/He) | ||||
log(Ca/He) | ||||
log(Ca/H) | ||||
Parallax | [mas] | 0.25 (0.08) | 0.42 (0.06) | |
Distance | [pc] | 4025.76 (1253) | 2399.81 (338) | |
Composition | ||||
Proper motion (right ascension) | [mas/yr] | -0.026 (0.1) | -0.033 (0.05) | |
Proper motion (declination) | [mas/yr] | -2.473 (0.09) | -2.72 (0.04) | |
Variability | ||||
Magnetic | ||||
Bd | [MG] | |||
Infrared excess (disk) | ||||
Binarity | ||||
B magnitude | ||||
V magnitude | ||||
R magnitude | ||||
I magnitude | ||||
J magnitude | ||||
H magnitude | ||||
K magnitude | ||||
u magnitude | ||||
g magnitude | ||||
r magnitude | ||||
i magnitude | ||||
z magnitude | ||||
G magnitude | 16.68 (0.002) | 16.65 (0.003) | ||
BP magnitude | 16.53 (0.008) | |||
RP magnitude | 16.81 (0.007) | |||
Pan g magnitude | 16.51 (0.005) | |||
Pan r magnitude | 16.83 (0.004) | |||
Pan i magnitude | 17.14 (0.004) | |||
Pan z magnitude | 17.38 (0.01) | |||
Pan y magnitude | 17.54 (0.01) | |||
E(B-V) | 0.049 |
* 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.