All names: KUV 23158+0855, TIC 423313802, uvby98 601105324, KUV 813-29, Balloon 93500001, PB 5324, Gaia DR2 2762123915081739264, GALEX J231819.0+091148, PG 2315+089, Gaia EDR3 2762123915081739264, 2MASS J23181902+0911484, [RRW93] Pn23l2-62, Gaia DR3 2762123915081739264, PG2315+089
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 23 18 19.02 (0.04) | 23 18 19.03 | 23 18 19.03 (0.04) | ||
| Declination | 09 11 48.35 (0.03) | 09 11 48.95 | 09 11 48.47 (0.03) | ||
| 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] | 0.86 (0.04) | 0.75 (0.06) | 0.86 (0.04) | |
| Distance | [pc] | 1167.68 (58) | 1334.40 (114) | 1167.68 (58) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -4.415 (0.04) | -4.362 (0.2) | -4.415 (0.04) | |
| Proper motion (declination) | [mas/yr] | -7.158 (0.04) | -7.051 (0.09) | -7.158 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.49 | ||||
| V magnitude | 14.63 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 15.13 (0.05) | 15.13 (0.05) | |||
| H magnitude | 15.15 (0.08) | 15.15 (0.08) | |||
| K magnitude | 15.46 (0.2) | 15.46 (0.2) | |||
| u magnitude | 13.89 (0.003) | ||||
| g magnitude | 14.17 (0.003) | ||||
| r magnitude | 14.70 (0.004) | ||||
| i magnitude | 15.03 (0.004) | ||||
| z magnitude | 15.34 (0.005) | ||||
| G magnitude | 14.44 (0.003) | 14.45 (0.0008) | 14.44 (0.003) | ||
| BP magnitude | 14.29 (0.004) | 14.23 (0.007) | |||
| RP magnitude | 14.71 (0.004) | 14.71 (0.002) | |||
| Pan g magnitude | 14.29 (0.008) | ||||
| Pan r magnitude | 14.70 (0.003) | ||||
| Pan i magnitude | 15.05 (0.0005) | ||||
| Pan z magnitude | 15.33 (0.002) | ||||
| Pan y magnitude | 15.50 (0.006) | ||||
| E(B-V) | 0.048 | ||||
* 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.