All names: Gaia DR3 3378155777335873664, UCAC4 557-033009, LAMOSTJ064508.27+211815.0, LAMOST J064508.27+211815.0, Gaia DR2 3378155777335873664, 2MASS J06450827+2118148
Parameter | Unit | Geier 2020 | Stilism | Simbad |
---|---|---|---|---|
Right ascension | 06 45 08.27 | 06 45 08.27 (0.04) | ||
Declination | 21 18 15.00 | 21 18 15.00 (0.04) | ||
Spectral type | sdB | sdB | ||
Effective temperature | [K] | 25156.0 (180) | ||
log(g) | [cgs] | 4.99 (0.01) | ||
Mass | [M☉] | |||
log(Luminosity) | [L☉] | |||
Cooling age | [Gyr] | |||
log(H/He) | ||||
log(C/He) | ||||
log(Ca/He) | ||||
log(Ca/H) | ||||
Parallax | [mas] | 0.45 (0.08) | 0.42 (0.05) | |
Distance | [pc] | 2212.39 (378) | 2383.79 (285) | |
Composition | ||||
Proper motion (right ascension) | [mas/yr] | 5.375 (0.1) | 5.021 (0.06) | |
Proper motion (declination) | [mas/yr] | -4.792 (0.1) | -4.583 (0.05) | |
Variability | ||||
Magnetic | ||||
Bd | [MG] | |||
Infrared excess (disk) | ||||
Binarity | ||||
B magnitude | 16.00 (0.08) | |||
V magnitude | 16.04 (0.01) | |||
R magnitude | ||||
I magnitude | ||||
J magnitude | 16.54 (0.1) | 16.54 (0.1) | ||
H magnitude | 16.31 (0.2) | 16.31 (0.2) | ||
K magnitude | 15.85 | |||
u magnitude | ||||
g magnitude | 16.01 (0.08) | |||
r magnitude | 16.33 (0.04) | |||
i magnitude | ||||
z magnitude | ||||
G magnitude | 16.16 (0.003) | 16.13 (0.003) | ||
BP magnitude | 16.04 (0.01) | |||
RP magnitude | 16.25 (0.01) | |||
Pan g magnitude | 16.04 (0.003) | |||
Pan r magnitude | 16.31 (0.003) | |||
Pan i magnitude | 16.57 (0.005) | |||
Pan z magnitude | 16.83 (0.006) | |||
Pan y magnitude | 16.93 (0.02) | |||
E(B-V) | 0.132 |
* 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.