All names: [HHD2009] SDSS J0320-0638, [SGR2010] J0320-0638, WD 0318-068, WIRED J032038.72-063822.9, SDSS J032038.72-063822.8, Gaia DR2 5169658173472195072, SDSS J032038.72-063823.0, USNO-A2.0 0825-00758598, TIC 9943937, Gaia DR3 5169658173472195072, SBC9 3360, 2MASS J03203873-0638229, SDSS J032038.72-063822.9, GALEX J032038.7-063822, Gaia EDR3 5169658173472195072
| 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 | 03 20 38.70 (0.2) | 03 20 38.73 | 03 20 38.70 (0.2) | 03 20 38.72 | 03 20 38.73 (0.2) | 03 20 38.73 | 03 20 37.73 | 03 20 38.72 | |||
| Declination | -06 38 23.37 (0.2) | -06 38 22.88 | -06 38 23.35 (0.3) | -06 38 22.88 | -06 38 22.92 (0.2) | -06 38 22.88 | -06 38 19.68 | -06 38 22.99 | |||
| Spectral type | DA+M | DA+M | DA+M | DA+ME | DA+M | ||||||
| Effective temperature | [K] | 11173.0 (361) | 7624.0 (69) | 7231.0 (118) | |||||||
| log(g) | [cgs] | 8.30 (0.3) | 5.78 (0.1) | 5.24 (0.2) | |||||||
| Mass | [M☉] | 0.79 (0.2) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 3.50 (0.3) | 3.60 (0.4) | 3.50 (0.3) | |||||||
| Distance | [pc] | 285.93 (20) | 277.96 (28) | 1048.00 (248) | 285.93 (20) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -22.50969949 (0.2) | -22.46155365 (0.5) | -22.51 (0.2) | -21.3 | ||||||
| Proper motion (declination) | [mas/yr] | -27.85872145 (0.2) | -28.49830941 (0.5) | -27.859 (0.2) | -21.1 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | yes | WDMS | |||||||
| B magnitude | 18.70 (0.3) | ||||||||||
| V magnitude | |||||||||||
| R magnitude | 18.90 (0.3) | ||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.58 (0.1) | ||||||||||
| H magnitude | 15.63 (0.1) | ||||||||||
| K magnitude | 15.60 (0.05) | ||||||||||
| u magnitude | 19.79 (0.04) | 19.76 | 19.77 (0.04) | 19.76 (0.04) | 19.74 | 19.77 (0.04) | |||||
| g magnitude | 19.27 (0.01) | 19.27 | 19.26 (0.01) | 19.27 (0.02) | 19.27 | 19.28 (0.02) | |||||
| r magnitude | 19.15 (0.01) | 19.15 | 19.16 (0.01) | 19.15 (0.01) | 19.15 | 19.16 (0.01) | |||||
| i magnitude | 18.53 (0.01) | 18.51 | 18.51 (0.01) | 18.51 (0.02) | 18.51 | 18.52 (0.02) | |||||
| z magnitude | 17.90 (0.02) | 17.90 | 17.90 (0.02) | 17.90 (0.03) | 17.90 | 17.89 (0.03) | |||||
| G magnitude | 18.84 (0.05) | 18.85 | 18.84 (0.004) | ||||||||
| BP magnitude | 19.25 (0.05) | 19.32 | |||||||||
| RP magnitude | 18.08 (0.02) | 18.05 | |||||||||
| Pan g magnitude | 19.25 (0.01) | ||||||||||
| Pan r magnitude | 19.14 (0.01) | ||||||||||
| Pan i magnitude | 18.55 (0.008) | ||||||||||
| Pan z magnitude | 18.03 (0.01) | ||||||||||
| Pan y magnitude | 17.70 (0.01) | ||||||||||
| E(B-V) | 0.022 | ||||||||||
* 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.