All names: GALEX J083827.0+415014, 2MASS J08382711+4150152, SDSS J083827.09+415015.5, Gaia DR2 913478383525222400, WD 0835+420, [HHD2009] SDSS J0838+4150, Gaia EDR3 913478383525222400, Gaia DR3 913478383525222400, TIC 188390375, SDSS J083827.09+415015.4, SDSS J083827.10+415015.5
| 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) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 38 27.10 (0.2) | 08 38 27.10 | 08 38 27.10 (0.2) | 08 38 27.09 | 08 38 27.10 (0.2) | 08 38 27.24 | |||
| Declination | 41 50 15.44 (0.1) | 41 50 15.48 | 41 50 15.44 (0.2) | 41 50 15.50 | 41 50 15.46 (0.1) | 41 50 08.88 | |||
| Spectral type | DA+M | DA+M | DA3.2 M | ||||||
| Effective temperature | [K] | 15246.0 (4311) | |||||||
| log(g) | [cgs] | 8.76 (0.7) | |||||||
| Mass | [M☉] | 1.07 (0.4) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 1.09 (0.2) | 0.07 (0.3) | 1.09 (0.2) | |||||
| Distance | [pc] | 917.45 (191) | 13941.30 (65687) | 1760.00 (582) | 917.43 (191) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 0.070465986 (0.2) | -1.39509395 (0.5) | 0.07 (0.2) | |||||
| Proper motion (declination) | [mas/yr] | -1.289853469 (0.2) | -0.207523391 (0.4) | -1.29 (0.2) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | ||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.79 (0.2) | ||||||||
| H magnitude | 16.18 (0.2) | ||||||||
| K magnitude | |||||||||
| u magnitude | 20.85 (0.08) | 20.85 | 20.85 (0.09) | 20.84 | |||||
| g magnitude | 20.10 (0.02) | 20.13 | 20.12 (0.02) | 20.12 | |||||
| r magnitude | 19.02 (0.01) | 19.03 | 19.03 (0.01) | 19.02 | |||||
| i magnitude | 18.28 (0.009) | 18.30 | 18.28 (0.009) | 18.28 | |||||
| z magnitude | 17.89 (0.02) | 17.91 | 17.91 (0.02) | 17.89 | |||||
| G magnitude | 18.80 (0.06) | 18.85 | 18.80 (0.003) | ||||||
| BP magnitude | 19.64 (0.06) | 19.73 | |||||||
| RP magnitude | 17.87 (0.02) | 17.89 | |||||||
| Pan g magnitude | 19.97 (0.02) | ||||||||
| Pan r magnitude | 19.00 (0.008) | ||||||||
| Pan i magnitude | 18.27 (0.003) | ||||||||
| Pan z magnitude | 17.94 (0.007) | ||||||||
| Pan y magnitude | 17.77 (0.03) | ||||||||
| 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.