All names: Gaia DR3 3672177904001643904, GALEX J140443.0+052131, Gaia EDR3 3672177904001643904, SDSSJ140443.03+052130.6, Gaia DR2 3672177904001464960, SDSS J140443.03+052130.6
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 04 43.03 (0.5) | 14 04 43.03 | 14 04 43.03 | 14 04 43.03 (0.8) | 14 04 43.03 (0.5) | 14 04 43.03 | ||
| Declination | 05 21 30.42 (0.4) | 05 21 30.63 | 05 21 30.60 | 05 21 30.42 (0.5) | 05 21 30.55 (0.4) | 05 21 30.61 | ||
| Spectral type | sdOB | sdO | SDO | |||||
| Effective temperature | [K] | 36655.0 (1226) | ||||||
| log(g) | [cgs] | 5.71 (0.2) | ||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | -0.90 (0.6) | -0.84 (0.7) | -0.84 (0.7) | ||||
| Distance | [pc] | |||||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -2.30717393 (0.5) | 0.054 (2) | 0.053560994 (2) | -2.307 (0.5) | 1.3 | ||
| Proper motion (declination) | [mas/yr] | -8.01840734 (0.4) | -6.149 (1) | -6.148673441 (1) | -8.018 (0.4) | -10.3 | ||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 19.18 (0.03) | 19.18 (0.03) | 19.19 (0.03) | 19.19 (0.04) | ||||
| g magnitude | 19.49 (0.01) | 19.49 (0.01) | 19.49 (0.01) | 19.52 (0.02) | ||||
| r magnitude | 19.98 (0.02) | 19.98 (0.02) | 20.00 (0.02) | 20.01 (0.03) | ||||
| i magnitude | 20.34 (0.05) | 20.34 (0.05) | 20.36 (0.05) | 20.38 (0.05) | ||||
| z magnitude | 20.95 (0.3) | 20.95 (0.3) | 20.91 (0.3) | 20.90 (0.3) | ||||
| G magnitude | 19.74 (0.05) | 19.78 (0.008) | 19.78 | 19.74 (0.006) | ||||
| BP magnitude | 19.68 (0.05) | 19.61 (0.07) | 19.61 | |||||
| RP magnitude | 20.18 (0.1) | 19.98 (0.1) | 19.98 | |||||
| Pan g magnitude | 19.57 (0.01) | 19.57 (0.01) | ||||||
| Pan r magnitude | 19.98 (0.01) | 19.98 (0.01) | ||||||
| Pan i magnitude | 20.35 (0.02) | 20.35 (0.02) | ||||||
| Pan z magnitude | 20.70 (0.05) | 20.70 (0.05) | ||||||
| Pan y magnitude | ||||||||
| E(B-V) | ||||||||
* 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.