All names: LAMOST J000824.52+490501.7, LAMOSTJ000824.52+490501.9, UCAC4 696-001088, 2MASS J00082452+4905021, Gaia DR3 393589879591384576, Gaia DR2 393589879591384576
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 00 08 24.53 | 00 08 24.52 (0.02) | ||
| Declination | 49 05 01.76 | 49 05 01.94 (0.03) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 26640.0 (700) | ||
| log(g) | [cgs] | 5.53 (0.08) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.64 (0.07) | 0.62 (0.04) | |
| Distance | [pc] | 1572.82 (162) | 1601.02 (111) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -2.15 (0.1) | -2.171 (0.03) | |
| Proper motion (declination) | [mas/yr] | -0.457 (0.06) | -0.61 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | 16.17 (0.2) | |||
| I magnitude | ||||
| J magnitude | 16.19 (0.1) | 16.19 (0.1) | ||
| H magnitude | 15.93 | |||
| K magnitude | 17.14 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.91 (0.0008) | 15.89 (0.003) | ||
| BP magnitude | 15.78 (0.004) | |||
| RP magnitude | 16.01 (0.004) | |||
| Pan g magnitude | 15.80 (0.006) | |||
| Pan r magnitude | 16.09 (0.004) | |||
| Pan i magnitude | 16.36 (0.005) | |||
| Pan z magnitude | 16.57 (0.004) | |||
| Pan y magnitude | 16.72 (0.01) | |||
| E(B-V) | 0.113 | |||
* 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.