All names: GALEXJ17533+6618, UCAC4 782-027303, Gaia DR3 1633291851249300608, TIC 362103375, 2MASS J17531835+6618306, WISE J175318.34+661830.6, AP J17531835+6618306, Gaia DR2 1633291851249300608, WISEA J175318.34+661830.6
Parameter | Unit | Geier 2020 | Stilism | Simbad |
---|---|---|---|---|
Right ascension | 17 53 18.32 | 17 53 18.35 (0.01) | ||
Declination | 66 18 30.46 | 66 18 30.63 (0.01) | ||
Spectral type | He-sdOB | |||
Effective temperature | [K] | 45000.0 | ||
log(g) | [cgs] | 5.80 | ||
Mass | [M☉] | |||
log(Luminosity) | [L☉] | |||
Cooling age | [Gyr] | |||
log(H/He) | ||||
log(C/He) | ||||
log(Ca/He) | ||||
log(Ca/H) | ||||
Parallax | [mas] | 1.28 (0.02) | 1.30 (0.01) | |
Distance | [pc] | 779.30 (11) | 769.82 (6) | |
Composition | ||||
Proper motion (right ascension) | [mas/yr] | -1.101 (0.03) | -1.007 (0.01) | |
Proper motion (declination) | [mas/yr] | -4.139 (0.03) | -4.159 (0.01) | |
Variability | ||||
Magnetic | ||||
Bd | [MG] | |||
Infrared excess (disk) | ||||
Binarity | ||||
B magnitude | ||||
V magnitude | ||||
R magnitude | 12.97 (0.06) | |||
I magnitude | ||||
J magnitude | 12.01 (0.02) | 12.01 (0.02) | ||
H magnitude | 11.77 (0.03) | 11.77 (0.03) | ||
K magnitude | 11.63 (0.03) | 11.63 (0.03) | ||
u magnitude | ||||
g magnitude | ||||
r magnitude | ||||
i magnitude | ||||
z magnitude | ||||
G magnitude | 13.04 (0.0002) | 13.04 (0.003) | ||
BP magnitude | 13.39 (0.0005) | |||
RP magnitude | 12.55 (0.0003) | |||
Pan g magnitude | 13.48 | |||
Pan r magnitude | 13.12 | |||
Pan i magnitude | 12.98 | |||
Pan z magnitude | 12.92 | |||
Pan y magnitude | 12.87 (0.002) | |||
E(B-V) | 0.031 |
* 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.