All names: SDSS J082429.04+172345.6, SDSS J082429.02+172345.4, WIRED J082429.02+172345.4, TIC 6953493, WD 0821+175, GALEX J082429.0+172345, Gaia DR2 662104324331671424, EPIC 211805571, Gaia EDR3 662104328629405440, SDSS J082429.02+172345.5, [SGR2010] J0824+1723, SDSS J082429.01+172345.4, Gaia DR3 662104328629405440, 2MASS J08242899+1723453
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Pyrzas et al. 2015 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 24 29.05 (0.8) | 08 24 29.02 | 08 24 29.05 (0.8) | 08 24 29.05 (0.8) | 08 24 28.80 | 08 24 29.02 | |||
| Declination | 17 23 45.43 (0.5) | 17 23 45.48 | 17 23 45.43 (0.5) | 17 23 45.43 (0.5) | 17 23 38.40 | 17 23 45.50 | |||
| Spectral type | DA+dMe | DA dM | DA+M | ||||||
| Effective temperature | [K] | 11430.0 | 6300.0 (3) | ||||||
| log(g) | [cgs] | 8.21 | 5.00 (0.006) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | ||||||||
| Distance | [pc] | ||||||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | ||||||||
| Proper motion (declination) | [mas/yr] | ||||||||
| Variability | VAR | ||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | ||||||||
| B magnitude | |||||||||
| V magnitude | 18.30 | ||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 15.00 (0.04) | ||||||||
| H magnitude | 14.42 (0.05) | ||||||||
| K magnitude | 14.20 (0.06) | ||||||||
| u magnitude | 19.09 (0.02) | 19.06 (0.02) | 19.05 | 19.08 (0.03) | |||||
| g magnitude | 18.35 (0.007) | 18.34 (0.007) | 18.36 | 18.36 (0.02) | |||||
| r magnitude | 17.81 (0.007) | 17.83 (0.006) | 17.86 | 17.86 (0.01) | |||||
| i magnitude | 16.92 (0.006) | 16.92 (0.006) | 16.92 | 16.93 (0.02) | |||||
| z magnitude | 16.21 (0.007) | 16.33 (0.008) | 16.34 | 16.34 (0.02) | |||||
| G magnitude | 17.68 (0.01) | 17.57 | 17.68 (0.009) | ||||||
| BP magnitude | 18.23 (0.01) | 18.21 | |||||||
| RP magnitude | 16.49 (0.006) | 16.50 | |||||||
| Pan g magnitude | 18.32 (0.01) | ||||||||
| Pan r magnitude | 17.84 (0.004) | ||||||||
| Pan i magnitude | 16.93 (0.003) | ||||||||
| Pan z magnitude | 16.44 (0.004) | ||||||||
| Pan y magnitude | 16.18 (0.009) | ||||||||
| E(B-V) | |||||||||
| Period #1 | [s] | 513.9 | |||||||
| Amplitude #1 | [mma] | 9.2 | |||||||
| Period #2 | [s] | 623.7 | |||||||
| Amplitude #2 | [mma] | 20.4 | |||||||
| Period #3 | [s] | 807.2 | |||||||
| Amplitude #3 | [mma] | 13.9 | |||||||
| Period #4 | [s] | 987.9 | |||||||
| Amplitude #4 | [mma] | 12 | |||||||
* 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.