All names: Gaia DR3 1229548806409101952, SDSS J140453.69+124428.4, SDSSJ140453.68+124428.5, Gaia DR2 1229548806409101952, GALEX J140453.7+124429, SDSS J140453.68+124428.5, Gaia EDR3 1229548806409101952
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 14 04 53.68 (0.06) | 14 04 53.68 | 14 04 53.68 (0.06) | ||
| Declination | 12 44 28.36 (0.05) | 12 44 28.50 | 12 44 28.58 (0.05) | ||
| Spectral type | He-sdOB | sdOBHe | |||
| Effective temperature | [K] | 40083.0 (2000) | |||
| log(g) | [cgs] | 5.80 (0.2) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.29 (0.08) | 0.22 (0.1) | 0.29 (0.08) | |
| Distance | [pc] | 3416.47 (885) | 4524.89 (2146) | 3416.47 (885) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -4.079 (0.08) | -4.136 (0.2) | -4.079 (0.08) | |
| Proper motion (declination) | [mas/yr] | -13.816 (0.07) | -13.867 (0.2) | -13.816 (0.07) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 17.81 (0.03) | ||||
| H magnitude | 18.02 (0.08) | ||||
| K magnitude | 18.20 (0.1) | ||||
| u magnitude | 16.44 (0.006) | 16.44 (0.006) | |||
| g magnitude | 16.79 (0.004) | 16.79 (0.004) | |||
| r magnitude | 17.30 (0.005) | 17.30 (0.005) | |||
| i magnitude | 17.68 (0.007) | 17.68 (0.007) | |||
| z magnitude | 18.02 (0.02) | 18.02 (0.02) | |||
| G magnitude | 17.06 (0.003) | 17.10 (0.003) | 17.06 (0.003) | ||
| BP magnitude | 16.90 (0.006) | 16.85 (0.01) | |||
| RP magnitude | 17.36 (0.01) | 17.35 (0.007) | |||
| Pan g magnitude | 16.89 (0.005) | ||||
| Pan r magnitude | 17.31 (0.003) | ||||
| Pan i magnitude | 17.69 (0.006) | ||||
| Pan z magnitude | 17.97 (0.009) | ||||
| Pan y magnitude | 18.19 (0.02) | ||||
| E(B-V) | 0.024 | ||||
* 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.