All names: LAMOST J015055.13+025239.5, SDSS J015055.12+025239.5, GALEX J015055.0+025240, 2MASS J01505512+0252397, UCAC4 465-002395, LAMOSTJ015055.13+025239.5, Gaia DR2 2512523711740403584, Gaia DR3 2512523711740403584
| Parameter | Unit | Geier 2020 | Stilism | Guo et al. 2015 | Simbad |
|---|---|---|---|---|---|
| Right ascension | 01 50 55.13 | 01 50 55.12 (0.05) | |||
| Declination | 02 52 39.50 | 02 52 39.64 (0.04) | |||
| Spectral type | sdB+MS | DAB | sdB+? | ||
| 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] | 0.23 (0.08) | 0.23 (0.06) | ||
| Distance | [pc] | 4297.38 (1415) | 4438.53 (1125) | ||
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 24.942 (0.1) | 25.12 (0.06) | ||
| Proper motion (declination) | [mas/yr] | -9.12 (0.1) | -9.046 (0.05) | ||
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 16.51 (0.06) | ||||
| V magnitude | 16.35 (0.04) | ||||
| R magnitude | 16.47 (0.2) | ||||
| I magnitude | |||||
| J magnitude | 16.02 (0.07) | ||||
| H magnitude | 15.60 (0.1) | ||||
| K magnitude | 15.53 (0.2) | ||||
| u magnitude | 16.16 (0.006) | 16.16 (0.006) | |||
| g magnitude | 16.28 (0.004) | 16.35 (0.04) | |||
| r magnitude | 16.48 (0.005) | 16.37 (0.09) | |||
| i magnitude | 16.59 (0.006) | 16.41 (0.3) | |||
| z magnitude | 16.70 (0.009) | 16.70 (0.009) | |||
| G magnitude | 16.36 (0.002) | 16.33 (0.003) | |||
| BP magnitude | 16.30 (0.008) | ||||
| RP magnitude | 16.28 (0.007) | ||||
| Pan g magnitude | 16.31 (0.003) | ||||
| Pan r magnitude | 16.48 (0.005) | ||||
| Pan i magnitude | 16.61 (0.003) | ||||
| Pan z magnitude | 16.72 (0.003) | ||||
| Pan y magnitude | 16.78 (0.009) | ||||
| E(B-V) | 0.032 | ||||
* 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.