All names: Gaia EDR3 678656307954729600, Gaia DR2 678656307954187392, Gaia DR3 678656307954729600, TIC 3645308, 2MASS J08283500+2415476, GALEX J082835.0+241547, SDSS J082835.00+241547.6
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 28 35.00 (0.3) | 08 28 35.00 | 08 28 35.00 (1) | 08 28 35.00 | 08 28 35.01 (0.3) | 08 28 35.00 | ||
| Declination | 24 15 47.57 (0.2) | 24 15 47.59 | 24 15 47.57 (0.5) | 24 15 47.59 | 24 15 47.64 (0.2) | 24 15 47.61 | ||
| Spectral type | DA+M | DA+M | DA+M | |||||
| Effective temperature | [K] | 23343.0 (185) | 6300.0 (1) | |||||
| log(g) | [cgs] | 8.12 (0.4) | 5.63 (0.2) | |||||
| Mass | [M☉] | 0.7 (0.2) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 0.64 (0.3) | -2.35 (1) | 0.64 (0.3) | ||||
| Distance | [pc] | 1572.44 (764) | 1154.00 (276) | 1572.33 (764) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -7.380355203 (0.4) | -9.424927194 (0.9) | -7.38 (0.4) | ||||
| Proper motion (declination) | [mas/yr] | -4.492959221 (0.2) | -5.604339423 (0.5) | -4.493 (0.2) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | WDMS | WDMS | ||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 16.71 (0.2) | |||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 20.53 (0.06) | 20.50 | 20.50 (0.07) | 20.50 (0.07) | ||||
| g magnitude | 20.03 (0.02) | 20.05 | 20.05 (0.02) | 20.05 (0.02) | ||||
| r magnitude | 19.35 (0.01) | 19.38 | 19.38 (0.02) | 19.38 (0.02) | ||||
| i magnitude | 18.44 (0.009) | 18.45 | 18.45 (0.02) | 18.45 (0.02) | ||||
| z magnitude | 17.95 (0.02) | 17.96 | 17.96 (0.02) | 17.96 (0.02) | ||||
| G magnitude | 19.28 (0.06) | 19.23 | 19.28 (0.004) | |||||
| BP magnitude | 19.87 (0.06) | 19.77 | ||||||
| RP magnitude | 18.09 (0.02) | 18.04 | ||||||
| Pan g magnitude | ||||||||
| Pan r magnitude | ||||||||
| Pan i magnitude | ||||||||
| Pan z magnitude | ||||||||
| Pan y magnitude | ||||||||
| 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.