All names: WIRED J082554.95+340446.6, Gaia DR3 903109817077023360, SDSS J082554.95+340446.6, [HHD2009] SDSS J0825+3404, 2MASS J08255492+3404469, GALEX J082555.0+340446, SDSS J082554.94+340446.6, Gaia DR2 903109817077023360, TIC 172829112, WD 0822+342, Gaia EDR3 903109817077023360
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 25 54.93 (0.3) | 08 25 54.94 | 08 25 54.93 (0.4) | 08 25 54.95 | 08 25 54.95 (0.3) | 08 25 54.95 | 08 25 54.38 | 08 25 54.95 | |||
| Declination | 34 04 46.53 (0.2) | 34 04 46.47 | 34 04 46.53 (0.3) | 34 04 46.60 | 34 04 46.59 (0.2) | 34 04 46.66 | 34 04 39.72 | 34 04 46.65 | |||
| Spectral type | WD+M | DC | DC:+M | DC: dM | DC:M | ||||||
| Effective temperature | [K] | 6300.0 (2) | 6300.0 (3) | ||||||||
| log(g) | [cgs] | 8.93 (0.08) | 10.00 (0.003) | ||||||||
| Mass | [M☉] | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 1.19 (0.3) | 0.71 (0.6) | 1.19 (0.3) | |||||||
| Distance | [pc] | 838.10 (241) | 1400.71 (1106) | 526.00 (123) | 838.08 (241) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -14.42212504 (0.4) | -14.85049402 (0.8) | -14.422 (0.4) | -18.4 | ||||||
| Proper motion (declination) | [mas/yr] | -3.620318611 (0.3) | -2.860718645 (0.5) | -3.62 (0.3) | -3.1 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | |||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.56 (0.2) | ||||||||||
| H magnitude | 16.24 (0.05) | ||||||||||
| K magnitude | 15.66 (0.06) | ||||||||||
| u magnitude | 20.23 (0.04) | 20.16 | 20.15 (0.04) | 20.16 (0.04) | 20.16 | 20.16 (0.04) | |||||
| g magnitude | 20.07 (0.02) | 20.00 | 19.98 (0.02) | 20.00 (0.03) | 20.00 | 20.01 (0.03) | |||||
| r magnitude | 19.62 (0.02) | 19.62 | 19.59 (0.02) | 19.62 (0.03) | 19.62 | 19.62 (0.03) | |||||
| i magnitude | 18.71 (0.01) | 18.67 | 18.65 (0.01) | 18.67 (0.02) | 18.67 | 18.67 (0.02) | |||||
| z magnitude | 18.04 (0.02) | 18.05 | 18.02 (0.02) | 18.05 (0.04) | 18.05 | 18.05 (0.04) | |||||
| G magnitude | 19.25 (0.04) | 19.25 | 19.25 (0.004) | ||||||||
| BP magnitude | 19.97 (0.04) | 19.86 | |||||||||
| RP magnitude | 18.22 (0.02) | 18.22 | |||||||||
| Pan g magnitude | 19.99 (0.02) | ||||||||||
| Pan r magnitude | 19.64 (0.02) | ||||||||||
| Pan i magnitude | 18.68 (0.004) | ||||||||||
| Pan z magnitude | 18.17 (0.01) | ||||||||||
| Pan y magnitude | 17.88 (0.01) | ||||||||||
| 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.