All names: LAMOST J081355.47+452623.0, SDSS J081355.47+452623.0, GALEX J081355.4+452622, SDSS J081355.48+452623.1, Gaia DR3 928715862339394944, SDSS J081355.47+452623.1, WIRED J081355.47+452623.0, WD 0810+455, Gaia DR2 928715862339394944, Gaia EDR3 928715862339394944, TIC 99137069, 2MASS J08135548+4526234, [HHD2009] SDSS J0813+4526
| 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 55.47 (0.3) | 08 13 55.48 | 08 13 55.47 (0.4) | 08 13 55.47 | 08 13 55.48 (0.3) | 08 13 55.48 | 08 13 54.77 | 08 13 55.47 | |||
| Declination | 45 26 23.08 (0.3) | 45 26 23.09 | 45 26 23.08 (0.4) | 45 26 22.99 | 45 26 23.17 (0.3) | 45 26 23.10 | 45 26 17.52 | 45 26 23.08 | |||
| Spectral type | DA+M | DA+dMe | DA+M | DA+M | DA+M | ||||||
| Effective temperature | [K] | 12110.0 (1090) | 6300.0 (1) | 6300.0 (1) | |||||||
| log(g) | [cgs] | 7.38 (0.4) | 7.06 (0.2) | 6.14 (0.2) | |||||||
| Mass | [M☉] | 0.33 (0.2) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 2.69 (0.4) | 3.25 (0.6) | 2.69 (0.4) | |||||||
| Distance | [pc] | 372.42 (55) | 307.57 (54) | 4950.00 (2422) | 372.41 (55) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -4.57512931 (0.4) | -4.054847977 (0.8) | -4.575 (0.4) | -4.0 | ||||||
| Proper motion (declination) | [mas/yr] | -5.925351728 (0.3) | -6.340117588 (0.6) | -5.925 (0.3) | -3.9 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | yes | WDMS | |||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | 15.99 (0.1) | ||||||||||
| K magnitude | |||||||||||
| u magnitude | 20.52 (0.06) | 20.53 | 20.52 (0.06) | 20.53 (0.06) | 20.55 | 20.52 (0.06) | |||||
| g magnitude | 19.78 (0.02) | 19.82 | 19.80 (0.02) | 19.82 (0.02) | 19.82 | 19.81 (0.02) | |||||
| r magnitude | 19.10 (0.01) | 19.12 | 19.11 (0.01) | 19.12 (0.02) | 19.13 | 19.12 (0.02) | |||||
| i magnitude | 18.34 (0.01) | 18.36 | 18.34 (0.01) | 18.36 (0.02) | 18.39 | 18.35 (0.02) | |||||
| z magnitude | 17.81 (0.02) | 17.84 | 17.82 (0.02) | 17.84 (0.03) | 17.87 | 17.84 (0.03) | |||||
| G magnitude | 19.22 (0.04) | 19.14 | 19.22 (0.005) | ||||||||
| BP magnitude | 19.69 (0.04) | 19.66 | |||||||||
| RP magnitude | 17.94 (0.02) | 17.94 | |||||||||
| Pan g magnitude | 19.74 (0.02) | ||||||||||
| Pan r magnitude | 19.12 (0.02) | ||||||||||
| Pan i magnitude | 18.36 (0.004) | ||||||||||
| Pan z magnitude | 17.93 (0.006) | ||||||||||
| Pan y magnitude | 17.70 (0.01) | ||||||||||
| E(B-V) | 0.033 | ||||||||||
* 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.