All names: COSMOS J100117.50+020956.0, SDSS J100117.50+020956.0, [HHD2009] SDSS J1001+0209, COSMOS 1589759, Gaia DR3 3836071588273693440, WD 0958+024, Gaia DR2 3836071588273693440, zCOSMOS 823810, GALEX J100117.5+020955, Gaia EDR3 3836071588273693440, SDSS J100117.49+020956.0
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 01 17.49 (0.6) | 10 01 17.50 | 10 01 17.49 | 10 01 17.50 (0.6) | 10 01 17.50 | 10 01 17.09 | 10 01 17.50 | |||
| Declination | 02 09 55.32 (0.7) | 02 09 56.00 | 02 09 56.02 | 02 09 55.99 (0.7) | 02 09 56.01 | 02 09 50.04 | 02 09 56.02 | |||
| Spectral type | DA+K | DA+K | DA+M: | DA+M | DA+M | |||||
| Effective temperature | [K] | 21535.0 (2709) | 8304.0 (126) | 8126.0 (136) | ||||||
| log(g) | [cgs] | 7.12 (0.4) | 8.31 (0.2) | 7.90 (0.2) | ||||||
| Mass | [M☉] | 0.3 (0.1) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 0.75 (0.6) | 0.75 (0.6) | |||||||
| Distance | [pc] | 1339.62 (992) | 512.00 (202) | 1339.58 (992) | ||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -6.308674889 (0.6) | -6.309 (0.6) | -4.5 | ||||||
| Proper motion (declination) | [mas/yr] | -41.68303581 (0.7) | -41.683 (0.7) | -37.4 | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | yes | WDMS | ||||||
| B magnitude | 20.17 (0.007) | |||||||||
| V magnitude | 20.22 (0.006) | |||||||||
| R magnitude | ||||||||||
| I magnitude | 19.75 | |||||||||
| J magnitude | ||||||||||
| H magnitude | 17.98 (0.08) | |||||||||
| K magnitude | 19.57 (0.05) | |||||||||
| u magnitude | 20.10 (0.05) | 20.08 | 20.10 (0.05) | 20.08 (0.05) | 20.11 | 20.09 (0.05) | ||||
| g magnitude | 20.00 (0.02) | 20.02 | 20.00 (0.02) | 20.02 (0.03) | 20.01 | 20.02 (0.03) | ||||
| r magnitude | 19.90 (0.02) | 19.92 | 19.90 (0.02) | 19.92 (0.02) | 19.91 | 19.90 (0.02) | ||||
| i magnitude | 19.68 (0.02) | 19.69 | 19.68 (0.02) | 19.69 (0.03) | 19.69 | 19.69 (0.03) | ||||
| z magnitude | 19.48 (0.08) | 19.50 | 19.48 (0.08) | 19.50 (0.09) | 19.49 | 19.50 (0.09) | ||||
| G magnitude | 19.82 (0.09) | 19.82 (0.007) | ||||||||
| BP magnitude | 20.10 (0.09) | |||||||||
| RP magnitude | 19.27 (0.07) | |||||||||
| Pan g magnitude | 20.03 (0.009) | |||||||||
| Pan r magnitude | 19.96 (0.01) | |||||||||
| Pan i magnitude | 19.68 (0.01) | |||||||||
| Pan z magnitude | 19.52 (0.01) | |||||||||
| Pan y magnitude | 19.29 (0.04) | |||||||||
| 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.