All names: UCAC4 530-009980, Gaia DR3 3405118997904684032, LAMOST J045027.67+155909.9, 2MASS J04502767+1559100, LAMOSTJ045027.67+155909.9, Gaia DR2 3405118997904684032, GALEX J045027.6+155910
Parameter | Unit | Geier 2020 | Stilism | Simbad |
---|---|---|---|---|
Right ascension | 04 50 27.68 | 04 50 27.68 (0.06) | ||
Declination | 15 59 10.00 | 15 59 10.03 (0.03) | ||
Spectral type | He-sdOB | sdOBHe | ||
Effective temperature | [K] | 37480.0 (270) | ||
log(g) | [cgs] | 5.73 (0.07) | ||
Mass | [M☉] | |||
log(Luminosity) | [L☉] | |||
Cooling age | [Gyr] | |||
log(H/He) | ||||
log(C/He) | ||||
log(Ca/He) | ||||
log(Ca/H) | ||||
Parallax | [mas] | 0.57 (0.09) | 0.53 (0.06) | |
Distance | [pc] | 1767.72 (293) | 1876.52 (221) | |
Composition | ||||
Proper motion (right ascension) | [mas/yr] | 2.503 (0.2) | 2.479 (0.07) | |
Proper motion (declination) | [mas/yr] | -1.467 (0.09) | -1.539 (0.05) | |
Variability | ||||
Magnetic | ||||
Bd | [MG] | |||
Infrared excess (disk) | ||||
Binarity | ||||
B magnitude | 16.80 (0.1) | |||
V magnitude | 16.64 (0.08) | |||
R magnitude | ||||
I magnitude | ||||
J magnitude | 16.42 (0.1) | 16.42 (0.1) | ||
H magnitude | 16.92 | |||
K magnitude | 15.71 | |||
u magnitude | ||||
g magnitude | 16.74 (0.03) | |||
r magnitude | 16.67 (0.2) | |||
i magnitude | ||||
z magnitude | ||||
G magnitude | 16.64 (0.0008) | 16.61 (0.003) | ||
BP magnitude | 16.65 (0.006) | |||
RP magnitude | 16.50 (0.007) | |||
Pan g magnitude | 16.65 (0.006) | |||
Pan r magnitude | 16.72 (0.003) | |||
Pan i magnitude | 16.84 (0.004) | |||
Pan z magnitude | 16.96 (0.008) | |||
Pan y magnitude | 17.05 (0.006) | |||
E(B-V) | 0.266 |
* 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.