All names: WISE J193740.17-430355.7, WISEA J193740.17-430355.9, TIC 425799931, UCAC2 13467703, GALEXJ19376-4303, 2MASS J19374017-4303557, GALEX J193740.3-430356, Gaia DR2 6688196710548976000, Gaia DR3 6688196710548976000, UCAC4 235-179284
Parameter | Unit | Geier 2020 | Stilism | Simbad |
---|---|---|---|---|
Right ascension | 19 37 40.39 | 19 37 40.18 (0.03) | ||
Declination | -43 03 56.54 | -43 03 55.83 (0.02) | ||
Spectral type | He-sdB | sdB2.5VHe21 | ||
Effective temperature | [K] | |||
log(g) | [cgs] | |||
Mass | [M☉] | |||
log(Luminosity) | [L☉] | |||
Cooling age | [Gyr] | |||
log(H/He) | ||||
log(C/He) | ||||
log(Ca/He) | ||||
log(Ca/H) | ||||
Parallax | [mas] | 0.76 (0.08) | 0.65 (0.04) | |
Distance | [pc] | 1319.44 (144) | 1532.80 (85) | |
Composition | ||||
Proper motion (right ascension) | [mas/yr] | 4.874 (0.1) | 4.98 (0.03) | |
Proper motion (declination) | [mas/yr] | -10.491 (0.08) | -10.298 (0.02) | |
Variability | ||||
Magnetic | ||||
Bd | [MG] | |||
Infrared excess (disk) | ||||
Binarity | ||||
B magnitude | 13.25 (0.02) | |||
V magnitude | 13.41 (0.01) | |||
R magnitude | 13.71 (0.2) | |||
I magnitude | ||||
J magnitude | 13.90 (0.03) | 13.90 (0.03) | ||
H magnitude | 13.99 (0.04) | 13.99 (0.04) | ||
K magnitude | 14.10 (0.06) | 14.10 (0.06) | ||
u magnitude | ||||
g magnitude | 13.22 (0.02) | |||
r magnitude | 13.62 (0.02) | |||
i magnitude | 13.87 (0.04) | |||
z magnitude | ||||
G magnitude | 13.38 (0.0007) | 13.36 (0.003) | ||
BP magnitude | 13.19 (0.006) | |||
RP magnitude | 13.56 (0.004) | |||
Pan g magnitude | ||||
Pan r magnitude | ||||
Pan i magnitude | ||||
Pan z magnitude | ||||
Pan y magnitude | ||||
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.