All names: SDSS J081312.10+324758.7, 2MASS J08131213+3247585, [HHD2009] SDSS J0813+3247, SDSS J081312.09+324758.6, Gaia DR2 902042814057462912, WD 0810+329, Gaia EDR3 902042814057462912, SDSS J081312.10+324758.6, WIRED J081312.09+324758.6, Gaia DR3 902042814057462912, TIC 139229914
| 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 13 12.08 (0.3) | 08 13 12.10 | 08 13 12.08 (0.4) | 08 13 12.09 | 08 13 12.10 (0.3) | 08 13 12.10 | 08 13 12.00 | 08 13 12.10 | |||
| Declination | 32 47 58.41 (0.2) | 32 47 58.69 | 32 47 58.42 (0.3) | 32 47 58.60 | 32 47 58.77 (0.2) | 32 47 58.65 | 32 47 55.68 | 32 47 58.68 | |||
| Spectral type | DA+M | DA+M | DA+M | DA d | DA+M | ||||||
| Effective temperature | [K] | 10427.0 (309) | 6306.0 (11) | 6303.0 (8) | |||||||
| log(g) | [cgs] | 8.47 (0.4) | 5.08 (0.09) | 7.14 (0.2) | |||||||
| Mass | [M☉] | 0.9 (0.2) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 2.95 (0.3) | 2.45 (0.5) | 2.95 (0.3) | |||||||
| Distance | [pc] | 339.36 (39) | 408.73 (84) | 526.00 (100) | 339.36 (39) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -18.06827813 (0.3) | -18.8881041 (0.7) | -18.068 (0.3) | -14.4 | ||||||
| Proper motion (declination) | [mas/yr] | -22.45143518 (0.2) | -21.18765616 (0.5) | -22.451 (0.2) | -24.3 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.70 (0.1) | ||||||||||
| H magnitude | 16.16 (0.2) | ||||||||||
| K magnitude | 15.78 (0.09) | ||||||||||
| u magnitude | 20.35 (0.04) | 20.35 | 20.34 (0.04) | 20.35 (0.04) | 20.35 | 20.36 (0.04) | |||||
| g magnitude | 19.79 (0.01) | 19.81 | 19.79 (0.01) | 19.81 (0.02) | 19.81 | 19.80 (0.02) | |||||
| r magnitude | 19.62 (0.01) | 19.64 | 19.62 (0.01) | 19.64 (0.02) | 19.64 | 19.62 (0.02) | |||||
| i magnitude | 18.96 (0.01) | 18.99 | 18.97 (0.01) | 18.99 (0.02) | 18.99 | 18.98 (0.02) | |||||
| z magnitude | 18.26 (0.02) | 18.28 | 18.27 (0.02) | 18.28 (0.03) | 18.28 | 18.25 (0.03) | |||||
| G magnitude | 19.27 (0.05) | 19.30 | 19.27 (0.004) | ||||||||
| BP magnitude | 19.84 (0.05) | 19.79 | |||||||||
| RP magnitude | 18.56 (0.03) | 18.48 | |||||||||
| Pan g magnitude | 19.76 (0.01) | ||||||||||
| Pan r magnitude | 19.63 (0.008) | ||||||||||
| Pan i magnitude | 18.96 (0.006) | ||||||||||
| Pan z magnitude | 18.42 (0.009) | ||||||||||
| Pan y magnitude | 18.13 (0.02) | ||||||||||
| E(B-V) | 0.025 | ||||||||||
* 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.