All names: LAMOST J230526.84+191754.3, Gaia DR3 2831429843832458752, LAMOSTJ230526.84+191754.3, Gaia DR2 2831429843832458752, 2MASS J23052679+1917539, GALEX J230526.8+191754
Parameter | Unit | Geier 2020 | Stilism | Simbad |
---|---|---|---|---|
Right ascension | 23 05 26.84 | 23 05 26.84 (0.05) | ||
Declination | 19 17 54.39 | 19 17 54.23 (0.06) | ||
Spectral type | sdB | sdB | ||
Effective temperature | [K] | 30248.0 (301) | ||
log(g) | [cgs] | 5.63 (0.06) | ||
Mass | [M☉] | |||
log(Luminosity) | [L☉] | |||
Cooling age | [Gyr] | |||
log(H/He) | ||||
log(C/He) | ||||
log(Ca/He) | ||||
log(Ca/H) | ||||
Parallax | [mas] | 0.27 (0.1) | 0.28 (0.07) | |
Distance | [pc] | 3695.49 (1372) | 3608.81 (968) | |
Composition | ||||
Proper motion (right ascension) | [mas/yr] | 14.139 (0.2) | 14.428 (0.08) | |
Proper motion (declination) | [mas/yr] | 0.726 (0.1) | 0.405 (0.07) | |
Variability | ||||
Magnetic | ||||
Bd | [MG] | |||
Infrared excess (disk) | ||||
Binarity | ||||
B magnitude | ||||
V magnitude | ||||
R magnitude | ||||
I magnitude | ||||
J magnitude | 16.83 (0.2) | 16.83 (0.2) | ||
H magnitude | 16.32 (0.2) | 16.32 (0.2) | ||
K magnitude | 16.21 | |||
u magnitude | 17.13 (0.01) | |||
g magnitude | 16.97 (0.004) | |||
r magnitude | 17.15 (0.005) | |||
i magnitude | 17.29 (0.006) | |||
z magnitude | 17.41 (0.02) | |||
G magnitude | 17.04 (0.001) | 17.02 (0.003) | ||
BP magnitude | 17.01 (0.006) | |||
RP magnitude | 16.98 (0.006) | |||
Pan g magnitude | 17.00 (0.005) | |||
Pan r magnitude | 17.16 (0.006) | |||
Pan i magnitude | 17.32 (0.005) | |||
Pan z magnitude | 17.45 (0.003) | |||
Pan y magnitude | 17.51 (0.01) | |||
E(B-V) | 0.054 |
* 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.