All names: SDSS J083357.02+052901.1, Gaia DR2 3092758636490173440, Gaia EDR3 3092758636490173440, [HHD2009] SDSS J0833+0529, SDSS J083357.00+052901.1, WD 0831+056, SDSS J083357.03+052901.2, WIRED J083357.02+052901.1, Gaia DR3 3092758636490173440
| 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 33 57.02 (0.4) | 08 33 57.03 | 08 33 57.02 (0.5) | 08 33 57.02 | 08 33 57.03 (0.4) | 08 33 57.02 | 08 33 56.86 | 08 33 57.03 | |||
| Declination | 05 29 01.11 (0.2) | 05 29 01.16 | 05 29 01.11 (0.3) | 05 29 01.10 | 05 29 01.16 (0.2) | 05 29 01.17 | 05 28 58.80 | 05 29 01.16 | |||
| Spectral type | DA+M | DA+dM | DA+M | DA d | DA+M | ||||||
| Effective temperature | [K] | 11972.0 (2295) | 6303.0 (8) | 6303.0 (8) | |||||||
| log(g) | [cgs] | 7.30 (0.8) | 7.04 (0.4) | 7.53 (0.3) | |||||||
| Mass | [M☉] | 0.3 (0.4) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 1.40 (0.5) | 0.73 (0.7) | 1.40 (0.5) | |||||||
| Distance | [pc] | 712.06 (269) | 1375.62 (1238) | 386.00 (30) | 712.05 (269) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -7.248779064 (0.5) | -8.349947956 (1) | -7.249 (0.5) | 12.1 | ||||||
| Proper motion (declination) | [mas/yr] | -3.011226718 (0.3) | -2.237629154 (0.6) | -3.011 (0.3) | -13.3 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 17.22 (0.02) | ||||||||||
| H magnitude | 16.63 (0.02) | ||||||||||
| K magnitude | 16.31 (0.03) | ||||||||||
| u magnitude | 20.87 (0.07) | 20.87 | 20.88 (0.07) | 20.87 (0.07) | 20.87 | 20.88 (0.08) | |||||
| g magnitude | 20.48 (0.02) | 20.48 | 20.47 (0.02) | 20.48 (0.03) | 20.48 | 20.49 (0.03) | |||||
| r magnitude | 20.30 (0.03) | 20.29 | 20.30 (0.03) | 20.29 (0.03) | 20.29 | 20.29 (0.03) | |||||
| i magnitude | 19.47 (0.02) | 19.48 | 19.47 (0.03) | 19.48 (0.04) | 19.49 | 19.48 (0.03) | |||||
| z magnitude | 18.69 (0.05) | 18.71 | 18.71 (0.05) | 18.71 (0.05) | 18.71 | 18.71 (0.05) | |||||
| G magnitude | 19.85 (0.07) | 19.89 | 19.85 (0.005) | ||||||||
| BP magnitude | 20.44 (0.07) | 20.48 | |||||||||
| RP magnitude | 18.97 (0.03) | 18.99 | |||||||||
| Pan g magnitude | 20.44 (0.01) | ||||||||||
| Pan r magnitude | 20.33 (0.03) | ||||||||||
| Pan i magnitude | 19.47 (0.01) | ||||||||||
| Pan z magnitude | 18.83 (0.01) | ||||||||||
| Pan y magnitude | 18.43 (0.01) | ||||||||||
| E(B-V) | 0.028 | ||||||||||
* 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.