All names: TIC 251016254, UCAC4 633-015367, LAMOST J040012.58+363545.8, LAMOSTJ040012.58+363545.8, Gaia DR3 219511728348315520, Gaia DR2 219511728348315520, 2MASS J04001257+3635458
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 04 00 12.58 | 04 00 12.58 (0.02) | ||
| Declination | 36 35 45.85 | 36 35 45.82 (0.01) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 22480.0 (120) | ||
| log(g) | [cgs] | 5.36 (0.02) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 1.38 (0.03) | 1.43 (0.03) | |
| Distance | [pc] | 722.65 (18) | 700.18 (13) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 4.648 (0.07) | 4.708 (0.03) | |
| Proper motion (declination) | [mas/yr] | 6.918 (0.05) | 6.925 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.17 (0.02) | |||
| V magnitude | 14.96 (0.01) | |||
| R magnitude | 15.13 (0.1) | |||
| I magnitude | ||||
| J magnitude | 14.51 (0.03) | 14.51 (0.03) | ||
| H magnitude | 14.49 (0.04) | 14.49 (0.04) | ||
| K magnitude | 14.53 (0.07) | 14.53 (0.07) | ||
| u magnitude | ||||
| g magnitude | 15.02 (0.05) | |||
| r magnitude | 15.01 (0.03) | |||
| i magnitude | 15.03 (0.09) | |||
| z magnitude | ||||
| G magnitude | 14.89 (0.002) | 14.87 (0.003) | ||
| BP magnitude | 14.96 (0.005) | |||
| RP magnitude | 14.69 (0.004) | |||
| Pan g magnitude | 14.97 (0.002) | |||
| Pan r magnitude | 14.96 (0.003) | |||
| Pan i magnitude | 15.05 (0.004) | |||
| Pan z magnitude | 15.12 (0.005) | |||
| Pan y magnitude | 15.16 (0.003) | |||
| E(B-V) | 0.419 | |||
* 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.