All names: SDSS J123620.03+283143.8, Gaia DR3 4010630359242098688, GALEX J123620.0+283143, Gaia DR2 4010630359242098688, Gaia EDR3 4010630359242098688, SDSSJ123620.03+283143.8, KUV 12339+2848
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 12 36 20.03 (0.2) | 12 36 20.03 | 12 36 20.03 (0.2) | ||
| Declination | 28 31 43.71 (0.1) | 28 31 43.80 | 28 31 43.81 (0.1) | ||
| Spectral type | sdB | 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] | 0.25 (0.2) | 0.48 (0.3) | 0.25 (0.2) | |
| Distance | [pc] | 4061.74 (3545) | 2097.32 (1197) | 4061.74 (3545) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -1.588 (0.2) | -1.236 (0.4) | -1.588 (0.2) | |
| Proper motion (declination) | [mas/yr] | -6.466 (0.2) | -6.656 (0.3) | -6.466 (0.2) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 18.00 | ||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | |||||
| H magnitude | |||||
| K magnitude | |||||
| u magnitude | 18.56 (0.02) | 18.56 (0.02) | |||
| g magnitude | 18.66 (0.008) | 18.66 (0.008) | |||
| r magnitude | 19.03 (0.01) | 19.03 (0.01) | |||
| i magnitude | 19.23 (0.02) | 19.23 (0.02) | |||
| z magnitude | 19.39 (0.07) | 19.51 (0.07) | |||
| G magnitude | 18.89 (0.004) | 18.91 (0.002) | 18.89 (0.004) | ||
| BP magnitude | 18.79 (0.02) | 18.73 (0.02) | |||
| RP magnitude | 18.89 (0.03) | 18.92 (0.04) | |||
| Pan g magnitude | 18.73 (0.01) | ||||
| Pan r magnitude | 19.07 (0.004) | ||||
| Pan i magnitude | 19.32 (0.01) | ||||
| Pan z magnitude | 19.44 (0.02) | ||||
| Pan y magnitude | 19.51 (0.03) | ||||
| E(B-V) | 0.014 | ||||
* 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.