All names: PG2303+013, SDSS J230638.16+013509.0, 2MASS J23063818+0135100, Gaia DR3 2652331593079280000, Gaia DR2 2652331593079280000, PG 2303+013, ULAS J230638.16+013509.2, TIC 310937782, GALEX J230638.1+013509, PHL 402, Gaia EDR3 2652331593079280000, UCAC4 458-127804, PB 5246, HS 2304+0118
| 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.