All names: SDSS J090439.84+562141.9, TIC 385452183, SDSS J090439.85+562141.9, WD 0900+565, 2MASS J09043983+5621421, Gaia EDR3 1036091114187606016, Gaia DR2 1036091114187606016, WIRED J090439.84+562141.9, Gaia DR3 1036091114187606016, [SGR2010] J0904+5621, [HHD2009] SDSS J0904+5621
| 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 | 09 04 39.82 (0.1) | 09 04 39.86 | 09 04 39.82 (0.2) | 09 04 39.84 | 09 04 39.86 (0.1) | 09 04 39.85 | 09 04 39.12 | 09 04 39.85 | |||
| Declination | 56 21 40.21 (0.1) | 56 21 41.99 | 56 21 40.26 (0.2) | 56 21 41.90 | 56 21 41.94 (0.1) | 56 21 41.98 | 56 21 38.88 | 56 21 41.93 | |||
| Spectral type | DA+M | DA+M | DA+M | DA6+M | DA+M | ||||||
| Effective temperature | [K] | 8944.0 (208) | 6302.0 (5) | 6300.0 (2) | |||||||
| log(g) | [cgs] | 8.31 (0.4) | 5.07 (0.09) | 7.05 (0.2) | |||||||
| Mass | [M☉] | 0.793 (0.3) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 4.30 (0.2) | 4.04 (0.3) | 4.30 (0.2) | |||||||
| Distance | [pc] | 232.43 (11) | 247.67 (17) | 240.00 (7) | 232.43 (11) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -18.85740872 (0.2) | -18.82597688 (0.4) | -18.857 (0.2) | -24.7 | ||||||
| Proper motion (declination) | [mas/yr] | -108.4258151 (0.2) | -107.899488 (0.4) | -108.426 (0.2) | -110.6 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | yes | WDMS | |||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.48 (0.1) | ||||||||||
| H magnitude | 15.68 (0.1) | ||||||||||
| K magnitude | 15.46 (0.2) | ||||||||||
| u magnitude | 19.75 (0.03) | 19.86 | 19.84 (0.04) | 19.86 (0.04) | 19.86 | 19.84 (0.04) | |||||
| g magnitude | 19.38 (0.01) | 19.36 | 19.34 (0.01) | 19.36 (0.03) | 19.36 | 19.35 (0.03) | |||||
| r magnitude | 19.20 (0.01) | 19.23 | 19.22 (0.01) | 19.23 (0.03) | 19.23 | 19.23 (0.03) | |||||
| i magnitude | 18.47 (0.01) | 18.53 | 18.50 (0.01) | 18.53 (0.03) | 18.54 | 18.52 (0.03) | |||||
| z magnitude | 17.79 (0.02) | 17.79 | 17.77 (0.02) | 17.79 (0.02) | 17.80 | 17.79 (0.02) | |||||
| G magnitude | 18.82 (0.04) | 18.83 | 18.82 (0.003) | ||||||||
| BP magnitude | 19.37 (0.04) | 19.37 | |||||||||
| RP magnitude | 17.96 (0.02) | 17.97 | |||||||||
| Pan g magnitude | 19.34 (0.02) | ||||||||||
| Pan r magnitude | 19.21 (0.007) | ||||||||||
| Pan i magnitude | 18.48 (0.004) | ||||||||||
| Pan z magnitude | 17.89 (0.005) | ||||||||||
| Pan y magnitude | 17.56 (0.01) | ||||||||||
| E(B-V) | 0.014 | ||||||||||
* 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.