All names: GALEX J092433.9+204020, WD 0921+208, Gaia DR2 637480898866286592, Gaia EDR3 637480898866286592, SDSS J092433.99+204020.1, 2MASS J09243397+2040200, TIC 414968812, SDSS J092433.98+204020.0, Gaia DR3 637480898866286592
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 24 34.00 (0.3) | 09 24 33.98 | 09 24 34.00 (0.2) | 09 24 33.98 | 09 24 33.98 (0.3) | 09 24 33.77 | 09 24 33.99 | |||
| Declination | 20 40 19.83 (0.3) | 20 40 20.02 | 20 40 19.84 (0.2) | 20 40 19.99 | 20 40 20.11 (0.3) | 20 40 15.60 | 20 40 20.06 | |||
| Spectral type | DA+M | DA+M | DA5.3 M | DA+M | ||||||
| Effective temperature | [K] | 9509.0 (158) | 6300.0 (2) | |||||||
| log(g) | [cgs] | 8.71 (0.2) | 5.03 (0.04) | |||||||
| Mass | [M☉] | 1.04 (0.1) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 4.63 (0.4) | 5.67 (0.3) | 4.63 (0.4) | ||||||
| Distance | [pc] | 216.13 (18) | 176.48 (1e+01) | 1443.00 (466) | 216.13 (18) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 16.78125845 (0.4) | 22.11808124 (0.4) | 16.781 (0.4) | ||||||
| Proper motion (declination) | [mas/yr] | -17.70096087 (0.3) | -17.2450386 (0.3) | -17.701 (0.3) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | ||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 15.01 (0.04) | |||||||||
| H magnitude | 14.34 (0.05) | |||||||||
| K magnitude | 14.11 (0.05) | |||||||||
| u magnitude | 19.50 (0.03) | 19.50 | 19.48 (0.03) | 19.49 | 19.49 (0.03) | |||||
| g magnitude | 18.81 (0.008) | 18.85 | 18.82 (0.008) | 18.85 | 18.83 (0.02) | |||||
| r magnitude | 18.22 (0.007) | 18.24 | 18.22 (0.007) | 18.24 | 18.23 (0.02) | |||||
| i magnitude | 17.12 (0.006) | 17.12 | 17.12 (0.006) | 17.12 | 17.11 (0.02) | |||||
| z magnitude | 16.37 (0.008) | 16.36 | 16.37 (0.009) | 16.36 | 16.37 (0.02) | |||||
| G magnitude | 17.67 (0.02) | 17.69 | 17.67 (0.003) | |||||||
| BP magnitude | 18.68 (0.02) | 18.68 | ||||||||
| RP magnitude | 16.61 (0.005) | 16.63 | ||||||||
| Pan g magnitude | 18.73 (0.007) | |||||||||
| Pan r magnitude | 18.21 (0.004) | |||||||||
| Pan i magnitude | 17.12 (0.005) | |||||||||
| Pan z magnitude | 16.51 (0.003) | |||||||||
| Pan y magnitude | 16.19 (0.005) | |||||||||
| E(B-V) | 0.018 | |||||||||
* 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.