All names: TIC 377248901, Gaia DR2 3900265303351399424, UCAC4 478-052893, SDSS J122535.23+053559.8, SDSS J122535.23+053559.78, GALEX J122535.2+053600, SDSSJ122535.22+053559.8, LAMOST J122535.22+053559.8, Gaia EDR3 3900265303351399424, Gaia DR3 3900265303351399424, PG 1223+059, 2MASS J12253523+0535599, SDSS J122535.23+053559.7, SDSS J122535.22+053559.8
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 25 35.23 (0.06) | 12 25 35.23 | 12 25 35.23 | 12 25 35.23 (0.1) | 12 25 35.23 (0.06) | ||||
| Declination | 05 35 59.77 (0.04) | 05 35 59.87 | 05 35 59.86 | 05 35 59.78 (0.07) | 05 35 59.92 (0.04) | ||||
| Spectral type | sdB | DAB | sdB | ||||||
| Effective temperature | [K] | 21961.0 (115) | |||||||
| log(g) | [cgs] | 5.00 (0) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.02 (0.07) | 0.06 (0.1) | 0.06 (0.1) | 0.02 (0.07) | ||||
| Distance | [pc] | 50589.09 (175434) | 16949.15 (34300) | 16948.15 (34291) | 50505.05 (174727) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -7.276682577 (0.07) | -7.469 (0.2) | -7.46874064 (0.2) | -7.277 (0.07) | ||||
| Proper motion (declination) | [mas/yr] | -9.305547599 (0.05) | -9.36 (0.1) | -9.360277379 (0.1) | -9.306 (0.05) | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 16.31 (0.05) | ||||||||
| V magnitude | 16.41 (0.01) | ||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.48 (0.1) | 16.56 (0.01) | |||||||
| H magnitude | 16.28 | 16.66 (0.02) | |||||||
| K magnitude | 15.08 | 16.72 (0.04) | |||||||
| u magnitude | 16.36 (0.006) | 16.36 (0.006) | 16.37 (0.01) | 16.36 (0.006) | |||||
| g magnitude | 16.06 (0.003) | 16.06 (0.003) | 16.09 (0.02) | 16.06 (0.003) | |||||
| r magnitude | 16.43 (0.004) | 16.43 (0.004) | 16.43 (0.02) | 16.43 (0.004) | |||||
| i magnitude | 16.67 (0.005) | 16.67 (0.005) | 16.68 (0.02) | 16.67 (0.005) | |||||
| z magnitude | 16.91 (0.01) | 16.91 (0.01) | 16.90 (0.03) | 16.91 (0.01) | |||||
| G magnitude | 16.25 (0.003) | 16.26 (0.001) | 16.26 | 16.25 (0.003) | |||||
| BP magnitude | 16.18 (0.003) | 16.16 (0.008) | 16.16 | ||||||
| RP magnitude | 16.38 (0.006) | 16.37 (0.008) | 16.37 | ||||||
| Pan g magnitude | 16.12 (0.005) | 16.12 (0.005) | |||||||
| Pan r magnitude | 16.42 (0.004) | 16.42 (0.004) | |||||||
| Pan i magnitude | 16.69 (0.003) | 16.70 (0.003) | |||||||
| Pan z magnitude | 16.91 (0.003) | 16.91 (0.003) | |||||||
| Pan y magnitude | 17.02 (0.009) | 17.02 (0.009) | |||||||
| E(B-V) | 0.026 | ||||||||
* 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.