All names: 2MASS J09462299+0404561, WISEA J094623.00+040456.4, GALEX J094623.0+040456, Gaia EDR3 3848227342153889280, Gaia DR2 3848227342153889280, UCAC4 471-042880, PG0943+043, SDSS J094623.02+040456.1, Gaia DR3 3848227342153889280, WISE J094623.02+040455.7, SDSS J094623.02+040456.0, PG 0943+043, LAMOST J094623.10+040456.0, TIC 455275325
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 46 23.02 (0.05) | 09 46 23.02 | 09 46 23.04 | 09 46 23.02 (0.08) | 09 46 23.02 (0.05) | 09 46 23.02 | |||
| Declination | 04 04 56.06 (0.04) | 04 04 56.10 | 04 04 56.61 | 04 04 56.07 (0.06) | 04 04 56.13 (0.04) | 04 04 56.09 | |||
| Spectral type | sdOB | sdO | SDO | ||||||
| Effective temperature | [K] | 37110.0 (1020) | 36026.0 (103) | ||||||
| log(g) | [cgs] | 5.77 (0.2) | 5.74 (0.03) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.64 (0.06) | 0.64 (0.1) | 0.64 (0.1) | 0.64 (0.06) | ||||
| Distance | [pc] | 1555.40 (134) | 1571.34 (247) | 1571.27 (247) | 1555.45 (134) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -7.878929966 (0.06) | -7.687 (0.1) | -7.686764939 (0.1) | -7.879 (0.06) | -3.6 | |||
| Proper motion (declination) | [mas/yr] | -4.365319362 (0.04) | -4.389 (0.1) | -4.389403717 (0.1) | -4.365 (0.04) | -9.7 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 15.48 (0.03) | ||||||||
| V magnitude | 15.73 (0.08) | ||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.26 (0.1) | 16.26 (0.1) | |||||||
| H magnitude | 16.01 | 16.48 (0.02) | |||||||
| K magnitude | 15.74 | 16.59 (0.05) | |||||||
| u magnitude | 15.17 (0.004) | 15.17 (0.004) | 15.17 (0.004) | 15.15 (0.01) | |||||
| g magnitude | 15.44 (0.003) | 15.44 (0.003) | 15.44 (0.003) | 15.44 (0.01) | |||||
| r magnitude | 15.92 (0.004) | 15.92 (0.004) | 15.92 (0.004) | 15.91 (0.02) | |||||
| i magnitude | 16.26 (0.004) | 16.26 (0.004) | 16.26 (0.004) | 16.27 (0.01) | |||||
| z magnitude | 16.58 (0.009) | 16.58 (0.009) | 16.58 (0.009) | 16.58 (0.01) | |||||
| G magnitude | 15.69 (0.002) | 15.71 (0.001) | 15.71 | 15.69 (0.003) | |||||
| BP magnitude | 15.55 (0.002) | 15.50 (0.01) | 15.50 | ||||||
| RP magnitude | 15.96 (0.003) | 15.95 (0.004) | 15.95 | ||||||
| Pan g magnitude | 15.53 (0.005) | 15.53 (0.005) | |||||||
| Pan r magnitude | 15.93 (0.003) | 15.93 (0.003) | |||||||
| Pan i magnitude | 16.30 (0.006) | 16.30 (0.006) | |||||||
| Pan z magnitude | 16.57 (0.005) | 16.57 (0.005) | |||||||
| Pan y magnitude | 16.75 (0.007) | 16.75 (0.007) | |||||||
| 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.