All names: 2MASS J23014582+1338374, TIC 217587019, UCAC4 519-142634, Gaia DR2 2815153223450428032, KUV 740-10, Gaia EDR3 2815153223450428032, WISEA J230145.81+133837.4, PG2259+134, Gaia DR3 2815153223450428032, LAMOST J230145.81+133837.4, PG 2259+134, WISE J230145.81+133837.8, SDSS J230145.82+133837.4, ATO J345.4409+13.6437, KUV 22593+1322, UCAC2 36749085, CRTS J230145.7+133837
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 23 01 45.82 (0.04) | 23 01 45.83 | 23 01 45.82 (0.04) | ||
| Declination | 13 38 37.35 (0.03) | 13 38 38.05 | 13 38 37.48 (0.03) | ||
| Spectral type | sdB | sdB1VIIHe9 | |||
| Effective temperature | [K] | 31190.0 (220) | |||
| log(g) | [cgs] | 5.73 (0.04) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.17 (0.05) | 1.17 (0.06) | 1.17 (0.05) | |
| Distance | [pc] | 856.60 (34) | 856.90 (46) | 856.60 (34) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -2.701 (0.04) | -2.663 (0.1) | -2.701 (0.04) | |
| Proper motion (declination) | [mas/yr] | -8.452 (0.04) | -8.465 (0.07) | -8.452 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.47 (0.03) | ||||
| V magnitude | 14.65 (0.08) | ||||
| R magnitude | 14.87 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 14.92 (0.04) | 14.92 (0.04) | |||
| H magnitude | 14.87 (0.05) | 14.87 (0.05) | |||
| K magnitude | 14.89 (0.1) | 14.89 (0.1) | |||
| u magnitude | 14.15 (0.004) | ||||
| g magnitude | 14.25 (0.003) | 14.39 (0.02) | |||
| r magnitude | 14.63 (0.004) | 14.79 (0.01) | |||
| i magnitude | 14.89 (0.005) | 15.13 (0.1) | |||
| z magnitude | 15.10 (0.005) | ||||
| G magnitude | 14.50 (0.004) | 14.52 (0.003) | 14.50 (0.004) | ||
| BP magnitude | 14.41 (0.007) | 14.36 (0.009) | |||
| RP magnitude | 14.68 (0.01) | 14.67 (0.01) | |||
| Pan g magnitude | 14.40 (0.01) | ||||
| Pan r magnitude | 14.69 (0.008) | ||||
| Pan i magnitude | 15.00 (0.01) | ||||
| Pan z magnitude | 15.26 (0.03) | ||||
| Pan y magnitude | 15.41 (0.007) | ||||
| E(B-V) | 0.051 | ||||
* 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.