All names: 2MASS J21232721+8333519, USNO-B1.0 1735-00037969, GALEX J212328.2+833350, Gaia DR3 2300497428494312960, HS 2126+8320, TIC 264305622, UCAC4 868-009384, Gaia DR2 2300497428494312960, GALEX J212328.2+833351, HS2126+8320
Parameter | Unit | Geier 2020 | Stilism | Simbad |
---|---|---|---|---|
Right ascension | 21 23 26.14 | 21 23 27.16 (0.02) | ||
Declination | 83 33 50.87 | 83 33 51.92 (0.02) | ||
Spectral type | sdB | sdB | ||
Effective temperature | [K] | 28100.0 (700) | ||
log(g) | [cgs] | 5.40 (0.2) | ||
Mass | [M☉] | |||
log(Luminosity) | [L☉] | |||
Cooling age | [Gyr] | |||
log(H/He) | ||||
log(C/He) | ||||
log(Ca/He) | ||||
log(Ca/H) | ||||
Parallax | [mas] | 1.26 (0.04) | 1.22 (0.02) | |
Distance | [pc] | 796.50 (24) | 821.22 (14) | |
Composition | ||||
Proper motion (right ascension) | [mas/yr] | 41.077 (0.07) | 41.128 (0.03) | |
Proper motion (declination) | [mas/yr] | 13.135 (0.06) | 13.117 (0.02) | |
Variability | ||||
Magnetic | ||||
Bd | [MG] | |||
Infrared excess (disk) | ||||
Binarity | ||||
B magnitude | 13.70 | |||
V magnitude | 13.95 | |||
R magnitude | 14.20 (0.1) | |||
I magnitude | ||||
J magnitude | 14.46 (0.05) | 14.46 (0.05) | ||
H magnitude | 14.46 (0.07) | 14.46 (0.07) | ||
K magnitude | 14.65 (0.1) | 14.65 (0.1) | ||
u magnitude | ||||
g magnitude | ||||
r magnitude | ||||
i magnitude | ||||
z magnitude | ||||
G magnitude | 14.01 (0.0005) | 13.99 (0.003) | ||
BP magnitude | 13.87 (0.007) | |||
RP magnitude | 14.16 (0.002) | |||
Pan g magnitude | 13.91 (0.005) | |||
Pan r magnitude | 14.21 (0.001) | |||
Pan i magnitude | 14.50 (0.003) | |||
Pan z magnitude | 14.73 (0.005) | |||
Pan y magnitude | 14.89 (0.004) | |||
E(B-V) | 0.162 |
* 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.