All names: SDSS J142459.58+031943.3, PG 1422+036, USNO-B1.0 0933-00259022, Gaia EDR3 3668499109893566464, Gaia DR2 3668499109893566464, GALEX J142459.6+031944, LAMOST J142459.57+031943.3, HIDDEN NAME PG 1422+035, Gaia DR3 3668499109893566464, WISEA J142459.55+031943.7, WISE J142459.57+031944.1, PG1422+035
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 24 59.58 (0.07) | 14 24 59.58 | 14 24 59.59 | 14 24 59.58 (0.09) | 14 24 59.58 (0.07) | 14 24 59.58 | |||
| Declination | 03 19 43.29 (0.05) | 03 19 43.34 | 03 19 43.44 | 03 19 43.29 (0.06) | 03 19 43.30 (0.05) | 03 19 43.33 | |||
| Spectral type | sdOB | sdO | SDO | ||||||
| Effective temperature | [K] | 34957.0 (945) | 35000.0 (194) | ||||||
| log(g) | [cgs] | 5.71 (0.1) | 5.59 (0.04) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.48 (0.07) | 0.47 (0.09) | 0.47 (0.09) | 0.48 (0.07) | ||||
| Distance | [pc] | 2069.02 (286) | 2135.84 (396) | 2135.84 (396) | 2069.11 (286) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -4.621658945 (0.08) | -4.47 (0.2) | -4.47 (0.2) | -4.622 (0.08) | 2.8 | |||
| Proper motion (declination) | [mas/yr] | -0.955019043 (0.06) | -0.537 (0.1) | -0.537 (0.1) | -0.955 (0.06) | -3.6 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 16.50 | ||||||||
| V magnitude | |||||||||
| R magnitude | 16.40 | ||||||||
| I magnitude | |||||||||
| J magnitude | 17.01 (0.02) | ||||||||
| H magnitude | 16.98 (0.04) | ||||||||
| K magnitude | 17.11 (0.09) | ||||||||
| u magnitude | 15.89 (0.004) | 15.89 (0.004) | 15.89 (0.004) | 15.89 (0.03) | |||||
| g magnitude | 16.18 (0.003) | 16.18 (0.003) | 16.18 (0.003) | 16.21 (0.01) | |||||
| r magnitude | 16.68 (0.004) | 16.68 (0.004) | 16.68 (0.004) | 16.68 (0.02) | |||||
| i magnitude | 17.03 (0.005) | 17.03 (0.005) | 17.03 (0.005) | 17.05 (0.04) | |||||
| z magnitude | 17.30 (0.01) | 17.30 (0.01) | 17.30 (0.01) | 17.32 (0.03) | |||||
| G magnitude | 16.44 (0.003) | 16.48 (0.003) | 16.48 | 16.44 (0.003) | |||||
| BP magnitude | 16.30 (0.003) | 16.25 (0.01) | 16.25 | ||||||
| RP magnitude | 16.73 (0.005) | 16.71 (0.005) | 16.71 | ||||||
| Pan g magnitude | 16.28 (0.003) | 16.28 (0.003) | |||||||
| Pan r magnitude | 16.72 (0.002) | 16.72 (0.002) | |||||||
| Pan i magnitude | 17.06 (0.004) | 17.06 (0.004) | |||||||
| Pan z magnitude | 17.31 (0.008) | 17.31 (0.008) | |||||||
| Pan y magnitude | 17.45 (0.01) | 17.45 (0.01) | |||||||
| E(B-V) | 0.029 | ||||||||
* 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.