All names: GALEX J084841.0+232052, EPIC 212164051, 2MASS J08484119+2320516, TIC 332023767, Gaia DR3 689473234627550080, [SGR2010] J0848+2320, SDSS J084841.17+232051.7, Gaia DR2 689473234627550080, SDSS J084841.17+232051.8, Gaia EDR3 689473234627550080, WD 0845+235
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 48 41.16 (0.08) | 08 48 41.17 | 08 48 41.16 (0.1) | 08 48 41.17 | 08 48 41.18 (0.08) | 08 48 41.33 | |||
| Declination | 23 20 51.53 (0.04) | 23 20 51.70 | 23 20 51.54 (0.06) | 23 20 51.68 | 23 20 51.76 (0.04) | 23 20 45.96 | |||
| Spectral type | WD+M | D+M3 | WD M | ||||||
| Effective temperature | [K] | ||||||||
| log(g) | [cgs] | ||||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 3.61 (0.09) | 3.55 (0.1) | 3.61 (0.1) | |||||
| Distance | [pc] | 276.73 (7) | 281.60 (10) | 396.00 (39) | 276.72 (7) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -22.96098646 (0.1) | -23.17947103 (0.2) | -22.961 (0.1) | |||||
| Proper motion (declination) | [mas/yr] | -14.71159871 (0.08) | -14.53736623 (0.1) | -14.712 (0.08) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | ||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 14.27 (0.03) | ||||||||
| H magnitude | 13.61 (0.03) | ||||||||
| K magnitude | 13.32 (0.03) | ||||||||
| u magnitude | 20.28 (0.05) | 20.28 | 20.29 (0.06) | 20.28 | |||||
| g magnitude | 18.82 (0.009) | 18.81 | 18.81 (0.009) | 18.81 | |||||
| r magnitude | 17.67 (0.006) | 17.67 | 17.67 (0.006) | 17.67 | |||||
| i magnitude | 16.38 (0.005) | 16.37 | 16.38 (0.005) | 16.38 | |||||
| z magnitude | 15.65 (0.007) | 15.67 | 15.65 (0.007) | 15.67 | |||||
| G magnitude | 17.05 (0.02) | 17.08 | 17.05 (0.003) | ||||||
| BP magnitude | 18.36 (0.02) | 18.39 | |||||||
| RP magnitude | 15.89 (0.004) | 15.90 | |||||||
| Pan g magnitude | 18.68 (0.004) | ||||||||
| Pan r magnitude | 17.69 (0.007) | ||||||||
| Pan i magnitude | 16.40 (0.004) | ||||||||
| Pan z magnitude | 15.78 (0.004) | ||||||||
| Pan y magnitude | 15.49 (0.01) | ||||||||
| E(B-V) | 0.017 | ||||||||
* 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.