All names: Gaia DR3 871356544038051712, TIC 126138222, 2MASS J07205970+2639087, GALEX J072059.6+263908, Gaia DR2 871356544038051712, UCAC4 584-038031, GALEXJ07209+2639, UCAC2 41184077
Parameter | Unit | Geier 2020 | Stilism | Simbad |
---|---|---|---|---|
Right ascension | 07 20 59.69 | 07 20 59.70 (0.04) | ||
Declination | 26 39 08.15 | 26 39 08.72 (0.04) | ||
Spectral type | sdOB | sdOB | ||
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] | 0.62 (0.06) | 0.49 (0.04) | |
Distance | [pc] | 1605.39 (163) | 2060.16 (171) | |
Composition | ||||
Proper motion (right ascension) | [mas/yr] | 0.303 (0.1) | 0.18 (0.04) | |
Proper motion (declination) | [mas/yr] | -0.027 (0.1) | -0.086 (0.04) | |
Variability | ||||
Magnetic | ||||
Bd | [MG] | |||
Infrared excess (disk) | ||||
Binarity | ||||
B magnitude | 14.85 (0.02) | |||
V magnitude | 15.04 (0.03) | |||
R magnitude | 15.27 (0.04) | |||
I magnitude | ||||
J magnitude | 15.72 (0.07) | 15.72 (0.07) | ||
H magnitude | 15.64 (0.2) | 15.64 (0.2) | ||
K magnitude | 15.57 | |||
u magnitude | ||||
g magnitude | 14.77 (0.03) | |||
r magnitude | ||||
i magnitude | 15.67 (0.01) | |||
z magnitude | ||||
G magnitude | 14.99 (0.001) | 14.97 (0.003) | ||
BP magnitude | 14.74 (0.02) | |||
RP magnitude | 15.22 (0.005) | |||
Pan g magnitude | 14.83 (0.004) | |||
Pan r magnitude | 15.21 (0.002) | |||
Pan i magnitude | 15.57 (0.002) | |||
Pan z magnitude | 15.82 (0.004) | |||
Pan y magnitude | 16.02 (0.005) | |||
E(B-V) | 0.044 |
* 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.