All names: LAMOST J123652.66+501513.5, LAMOST J123652.66+501513.8, Gaia DR2 1568451554613413888, SDSS J123652.66+501513.5, Balloon 114041001, 2MASS J12365266+5015135, UCAC4 702-052043, Ton 90, PG1234+505, GALEX J123652.6+501511, Gaia DR3 1568451554613870848, PG 1234+505, SBSS 1234+505, TIC 444045357, Gaia EDR3 1568451554613870848
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 12 36 52.64 (0.03) | 12 36 52.72 | 12 36 52.66 (0.03) | ||
| Declination | 50 15 13.52 (0.03) | 50 15 13.60 | 50 15 13.53 (0.03) | ||
| Spectral type | sdO | sdOHe2 | |||
| Effective temperature | [K] | 42190.0 (1200) | |||
| log(g) | [cgs] | 5.37 (0.07) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.66 (0.05) | 0.68 (0.05) | 0.66 (0.05) | |
| Distance | [pc] | 1519.30 (106) | 1464.34 (100) | 1519.30 (106) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -12.232 (0.03) | -12.333 (0.05) | -12.232 (0.03) | |
| Proper motion (declination) | [mas/yr] | -0.312 (0.04) | -0.439 (0.06) | -0.312 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.45 (0.02) | ||||
| V magnitude | 14.68 (0.01) | ||||
| R magnitude | 14.95 (0.04) | ||||
| I magnitude | |||||
| J magnitude | 15.45 (0.05) | 15.45 (0.05) | |||
| H magnitude | 15.68 (0.1) | 15.68 (0.1) | |||
| K magnitude | 15.60 (0.2) | 15.60 (0.2) | |||
| u magnitude | 14.00 (0.004) | 13.89 (0.02) | |||
| g magnitude | 14.37 (0.004) | 14.38 (0.01) | |||
| r magnitude | 14.93 (0.004) | 14.93 (0.02) | |||
| i magnitude | 15.28 (0.004) | 15.29 (0.01) | |||
| z magnitude | 15.66 (0.006) | 15.66 (0.01) | |||
| G magnitude | 14.65 (0.003) | 14.65 (0.0008) | 14.65 (0.003) | ||
| BP magnitude | 14.46 (0.003) | 14.38 (0.009) | |||
| RP magnitude | 14.97 (0.004) | 14.96 (0.003) | |||
| Pan g magnitude | 14.47 (0.004) | ||||
| Pan r magnitude | 14.93 (0.001) | ||||
| Pan i magnitude | 15.31 (0.002) | ||||
| Pan z magnitude | 15.61 (0.003) | ||||
| Pan y magnitude | 15.80 (0.004) | ||||
| E(B-V) | 0.018 | ||||
* 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.