All names: NAME GS 259-8, AC2000 1396983, 2MASS J22475638+3753515, GSC 03214-02615, UCAC4 640-119187, UCAC2 45096878, TIC 129135005, USNO-B1.0 1278-00633810, Gaia DR3 1928721966977837184, GS259-8, Gaia DR2 1928721966977837184
Parameter | Unit | Geier 2020 | Stilism | Simbad |
---|---|---|---|---|
Right ascension | 22 47 56.21 | 22 47 56.38 (0.02) | ||
Declination | 37 53 52.00 | 37 53 51.52 (0.03) | ||
Spectral type | sdO | sdO | ||
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] | 1.57 (0.06) | 1.60 (0.04) | |
Distance | [pc] | 635.81 (26) | 624.38 (16) | |
Composition | ||||
Proper motion (right ascension) | [mas/yr] | -18.373 (0.07) | -18.477 (0.05) | |
Proper motion (declination) | [mas/yr] | -9.03 (0.08) | -9.092 (0.04) | |
Variability | ||||
Magnetic | ||||
Bd | [MG] | |||
Infrared excess (disk) | ||||
Binarity | ||||
B magnitude | 12.87 (0.01) | |||
V magnitude | 13.03 (0.03) | |||
R magnitude | 13.27 (0.1) | |||
I magnitude | ||||
J magnitude | 13.51 (0.02) | 13.51 (0.02) | ||
H magnitude | 13.65 (0.03) | 13.65 (0.03) | ||
K magnitude | 13.86 (0.05) | 13.86 (0.05) | ||
u magnitude | ||||
g magnitude | ||||
r magnitude | ||||
i magnitude | ||||
z magnitude | ||||
G magnitude | 12.97 (0.001) | 12.95 (0.003) | ||
BP magnitude | 12.78 (0.004) | |||
RP magnitude | 13.17 (0.002) | |||
Pan g magnitude | 12.55 | |||
Pan r magnitude | 13.07 | |||
Pan i magnitude | 13.44 | |||
Pan z magnitude | 13.77 (0.003) | |||
Pan y magnitude | 13.93 (0.002) | |||
E(B-V) | 0.091 |
* 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.