All names: PB 5246, HS 2304+0118, TIC 310937782, 2MASS J23063818+0135100, PG2303+013, ULAS J230638.16+013509.2, PG 2303+013, UCAC4 458-127804, GALEX J230638.1+013509, Gaia EDR3 2652331593079280000, PHL 402, Gaia DR2 2652331593079280000, SDSS J230638.16+013509.0, Gaia DR3 2652331593079280000
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 23 06 38.17 (0.05) | 23 06 38.14 | 23 06 38.17 (0.05) | ||
| Declination | 01 35 08.95 (0.05) | 01 35 10.07 | 01 35 09.18 (0.05) | ||
| Spectral type | He-sdO | sdO(He) | |||
| Effective temperature | [K] | 46000.0 | |||
| log(g) | [cgs] | 5.50 | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.50 (0.06) | 0.38 (0.07) | 0.50 (0.06) | |
| Distance | [pc] | 1980.98 (233) | 2604.17 (483) | 1980.98 (233) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 1.326 (0.07) | 1.688 (0.1) | 1.326 (0.07) | |
| Proper motion (declination) | [mas/yr] | -14.254 (0.05) | -14.333 (0.1) | -14.254 (0.05) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.74 (0.08) | ||||
| V magnitude | 15.74 (0.03) | ||||
| R magnitude | 16.36 | ||||
| I magnitude | |||||
| J magnitude | 16.65 (0.1) | 16.66 (0.01) | |||
| H magnitude | 16.27 (0.2) | 16.75 (0.03) | |||
| K magnitude | 16.41 | 16.95 (0.06) | |||
| u magnitude | 15.29 (0.005) | 15.29 (0.005) | |||
| g magnitude | 15.67 (0.004) | 15.67 (0.004) | |||
| r magnitude | 16.19 (0.005) | 16.19 (0.005) | |||
| i magnitude | 16.52 (0.005) | 16.52 (0.005) | |||
| z magnitude | 16.85 (0.01) | 16.85 (0.01) | |||
| G magnitude | 15.95 (0.003) | 15.97 (0.002) | 15.95 (0.003) | ||
| BP magnitude | 15.80 (0.007) | 15.76 (0.01) | |||
| RP magnitude | 16.24 (0.008) | 16.23 (0.005) | |||
| Pan g magnitude | 15.79 (0.005) | ||||
| Pan r magnitude | 16.21 (0.005) | ||||
| Pan i magnitude | 16.56 (0.003) | ||||
| Pan z magnitude | 16.83 (0.009) | ||||
| Pan y magnitude | 17.03 (0.01) | ||||
| E(B-V) | 0.053 | ||||
* 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.