All names: 2MASS J13002554+0045300, WISE J130025.54+004530.1, UCAC4 454-052119, [HMD92] 862-5, TIC 411239870, Gaia EDR3 3689536684343245312, GALEX J130025.5+004530, Gaia DR2 3689536684343245312, Gaia DR3 3689536684343245312, LAMOST J130025.53+004530.1, PG1257+010, PG 1257+010, SDSS J130025.53+004530.1, SDSS J130025.52+004530.1
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Harris et al. 2003 | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 13 00 25.53 (0.04) | 13 00 25.52 | 13 00 25.53 | 13 00 25.53 (0.07) | 13 00 25.53 (0.04) | 13 00 25.52 | ||||
| Declination | 00 45 29.84 (0.03) | 00 45 30.14 | 00 45 31.10 | 00 45 29.85 (0.04) | 00 45 30.17 (0.03) | 00 45 30.12 | ||||
| Spectral type | sdOB+MS | sdO | sdB+? | SDB | ||||||
| Effective temperature | [K] | 37940.0 (730) | 36207.0 (286) | |||||||
| log(g) | [cgs] | 6.02 (0.1) | 5.29 (0.06) | |||||||
| Mass | [M☉] | |||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 0.62 (0.04) | 0.36 (0.07) | 0.36 (0.07) | 0.62 (0.04) | |||||
| Distance | [pc] | 1611.98 (101) | 2757.10 (536) | 2757.10 (536) | 1611.86 (101) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 2.011310195 (0.05) | 1.745 (0.1) | 1.745 (0.1) | 2.011 (0.05) | 3.8 | ||||
| Proper motion (declination) | [mas/yr] | -20.56934616 (0.04) | -20.567 (0.09) | -20.567 (0.09) | -20.569 (0.04) | -22.1 | ||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 15.81 (0.02) | |||||||||
| V magnitude | 15.85 (0.01) | |||||||||
| R magnitude | 16.07 (0.2) | |||||||||
| I magnitude | ||||||||||
| J magnitude | 15.41 (0.06) | 15.41 (0.06) | ||||||||
| H magnitude | 15.01 (0.09) | 15.01 (0.09) | ||||||||
| K magnitude | 15.01 (0.2) | 15.01 (0.2) | ||||||||
| u magnitude | 15.50 (0.004) | 15.50 (0.004) | 15.48 | 15.50 (0.004) | 15.51 (0.01) | |||||
| g magnitude | 15.66 (0.003) | 15.66 (0.003) | 15.67 | 15.71 (0.07) | 15.68 (0.02) | |||||
| r magnitude | 15.83 (0.003) | 15.83 (0.003) | 15.82 | 15.82 (0.1) | 15.83 (0.01) | |||||
| i magnitude | 15.92 (0.004) | 15.92 (0.004) | 15.91 | 15.92 (0.004) | 15.91 (0.02) | |||||
| z magnitude | 16.00 (0.006) | 16.00 (0.006) | 16.01 | 16.00 (0.006) | 16.03 (0.02) | |||||
| G magnitude | 15.70 (0.003) | 15.72 (0.001) | 15.72 | 15.70 (0.003) | ||||||
| BP magnitude | 15.70 (0.003) | 15.66 (0.008) | 15.66 | |||||||
| RP magnitude | 15.61 (0.003) | 15.62 (0.003) | 15.62 | |||||||
| Pan g magnitude | 15.71 (0.003) | 15.71 (0.003) | ||||||||
| Pan r magnitude | 15.85 (0.003) | 15.85 (0.003) | ||||||||
| Pan i magnitude | 15.98 (0.003) | 15.98 (0.003) | ||||||||
| Pan z magnitude | 16.04 (0.005) | 16.04 (0.005) | ||||||||
| Pan y magnitude | 16.09 (0.006) | 16.09 (0.006) | ||||||||
| E(B-V) | 0.021 | |||||||||
* 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.