All names: SDSS J085557.45+053524.5, SDSS J085557.40+053524.5, WD 0853+057, Gaia EDR3 582018341200290688, SDSS J085557.46+053524.5, WIRED J085557.45+053524.5, SDSS J085557.45+053524.4, WISE J085557.46+053524.1, [HHD2009] SDSS J0855+0535, WISEA J085557.45+053523.9, Gaia DR2 582018341200290688
| 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 55 57.44 (3) | 08 55 57.46 | 08 55 57.44 (4) | 08 55 57.45 | 08 55 57.46 | 08 55 57.46 | 08 55 57.55 | 08 55 57.46 | |||
| Declination | 05 35 24.79 (0.4) | 05 35 24.50 | 05 35 24.79 (1) | 05 35 24.50 | 05 35 24.50 | 05 35 24.51 | 05 35 22.20 | 05 35 24.51 | |||
| Spectral type | DA+M | DA+dMe | DA+M | DA dM | DA+M | ||||||
| Effective temperature | [K] | 10670.0 (1677) | 6304.0 (9) | 6303.0 (8) | |||||||
| log(g) | [cgs] | 6.09 (1) | 7.40 (0.5) | 7.33 (0.3) | |||||||
| Mass | [M☉] | 0.02 (0.2) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | ||||||||||
| Distance | [pc] | 856.00 (110) | |||||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -1.0 (5) | 3.6 | ||||||||
| Proper motion (declination) | [mas/yr] | -9.0 (5) | -14.2 | ||||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 17.12 (0.02) | ||||||||||
| H magnitude | 16.55 (0.02) | ||||||||||
| K magnitude | 16.22 (0.03) | ||||||||||
| u magnitude | 21.00 (0.09) | 20.78 | 21.00 (0.09) | 20.78 (0.09) | 20.78 | 20.79 (0.09) | |||||
| g magnitude | 20.24 (0.02) | 20.38 | 20.24 (0.02) | 20.38 (0.03) | 20.38 | 20.39 (0.03) | |||||
| r magnitude | 20.01 (0.02) | 20.11 | 20.01 (0.02) | 20.11 (0.03) | 20.11 | 20.10 (0.03) | |||||
| i magnitude | 19.08 (0.02) | 19.17 | 19.08 (0.01) | 19.17 (0.02) | 19.17 | 19.17 (0.02) | |||||
| z magnitude | 18.43 (0.03) | 18.49 | 18.43 (0.03) | 18.49 (0.05) | 18.49 | 18.50 (0.05) | |||||
| G magnitude | 20.62 | 20.68 | |||||||||
| BP magnitude | |||||||||||
| RP magnitude | |||||||||||
| Pan g magnitude | 20.32 (0.01) | ||||||||||
| Pan r magnitude | 20.10 (0.02) | ||||||||||
| Pan i magnitude | 19.21 (0.01) | ||||||||||
| Pan z magnitude | 18.65 (0.01) | ||||||||||
| Pan y magnitude | 18.32 (0.02) | ||||||||||
| E(B-V) | 0.035 | ||||||||||
* 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.