All names: GSC 00292-00387, Gaia DR3 3708157360436901248, [TFW97] J123312.56+045737.49, 2MASS J12331256+0457376, Gaia EDR3 3708157360436901248, Gaia DR2 3708157360436901248, PG 1230+052, PG1230+052, TIC 388940683, SBC9 3329, GALEX J123312.6+045738, USNO-A2.0 0900-07178323
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 12 33 12.55 (0.04) | 12 33 12.57 | 12 33 12.56 (0.04) | ||
| Declination | 04 57 37.38 (0.02) | 04 57 38.45 | 04 57 37.60 (0.02) | ||
| Spectral type | sdB+WD | sdB | |||
| Effective temperature | [K] | 28300.0 (1000) | |||
| log(g) | [cgs] | 5.72 (0.1) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.58 (0.04) | 1.60 (0.07) | 1.58 (0.04) | |
| Distance | [pc] | 630.99 (15) | 623.05 (27) | 630.99 (15) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -10.439 (0.06) | -10.776 (0.1) | -10.439 (0.06) | |
| Proper motion (declination) | [mas/yr] | -14.087 (0.04) | -14.02 (0.1) | -14.087 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 13.26 | ||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 13.80 (0.02) | 13.80 (0.02) | |||
| H magnitude | 13.93 (0.04) | 13.93 (0.04) | |||
| K magnitude | 14.03 (0.06) | 14.03 (0.06) | |||
| u magnitude | 13.12 (0.003) | ||||
| g magnitude | 13.21 (0.003) | ||||
| r magnitude | 13.67 (0.006) | ||||
| i magnitude | 13.95 (0.004) | ||||
| z magnitude | 14.17 (0.004) | ||||
| G magnitude | 13.22 (0.003) | 13.23 (0.0004) | 13.22 (0.003) | ||
| BP magnitude | 13.08 (0.003) | 13.03 (0.004) | |||
| RP magnitude | 13.49 (0.004) | 13.49 (0.001) | |||
| Pan g magnitude | 12.99 | ||||
| Pan r magnitude | 13.44 | ||||
| Pan i magnitude | 13.84 (0.002) | ||||
| Pan z magnitude | 14.10 (0.003) | ||||
| Pan y magnitude | 14.28 (0.003) | ||||
| 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.