All names: Gaia EDR3 899270223691812096, SDSS J073700.59+384733.8, Gaia DR3 899270223691812096, SDSS J073700.60+384733.8, WIRED J073700.60+384733.8, Gaia DR2 899270219394157184, SDSS J073700.59+384733.7, WD 0733+389, [HHD2009] SDSS J0737+3847
| 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 | 07 37 00.59 (1) | 07 37 00.60 | 07 37 00.59 (4) | 07 37 00.60 | 07 37 00.59 (1) | 07 37 00.60 | 07 36 59.95 | 07 37 00.60 | |||
| Declination | 38 47 33.78 (2) | 38 47 33.85 | 38 47 33.77 (2) | 38 47 33.79 | 38 47 33.78 (2) | 38 47 33.78 | 38 47 27.24 | 38 47 33.81 | |||
| Spectral type | DA+M | DA+M | DA:+M | DA+M | DA+M | ||||||
| Effective temperature | [K] | 32595.0 (1616) | 8483.0 (100) | 8900.0 (165) | |||||||
| log(g) | [cgs] | 7.84 (0.5) | 8.98 (0.03) | 9.76 (0.2) | |||||||
| Mass | [M☉] | 0.57 (0.3) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | ||||||||||
| Distance | [pc] | 495.00 (36) | |||||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 5.0 (4) | 7.0 | ||||||||
| Proper motion (declination) | [mas/yr] | 1.0 (4) | -2.9 | ||||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | yes | WDMS | |||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 19.93 (0.04) | 19.98 | 19.97 (0.04) | 19.98 (0.04) | 20.00 | 19.97 (0.04) | |||||
| g magnitude | 20.20 (0.02) | 20.26 | 20.20 (0.02) | 20.26 (0.02) | 20.27 | 20.26 (0.02) | |||||
| r magnitude | 20.44 (0.04) | 20.51 | 20.45 (0.04) | 20.51 (0.04) | 20.52 | 20.51 (0.04) | |||||
| i magnitude | 20.01 (0.03) | 20.09 | 20.03 (0.03) | 20.09 (0.03) | 20.08 | 20.08 (0.03) | |||||
| z magnitude | 19.66 (0.08) | 19.70 | 19.67 (0.09) | 19.70 (0.09) | 19.69 | 19.67 (0.08) | |||||
| G magnitude | 20.34 (0.1) | 20.25 | 20.34 (0.02) | ||||||||
| BP magnitude | 20.42 (0.1) | 20.38 | |||||||||
| RP magnitude | 19.68 (0.1) | 19.65 | |||||||||
| Pan g magnitude | 20.29 (0.01) | ||||||||||
| Pan r magnitude | 20.49 (0.02) | ||||||||||
| Pan i magnitude | 20.11 (0.01) | ||||||||||
| Pan z magnitude | 19.78 (0.03) | ||||||||||
| Pan y magnitude | 19.51 (0.04) | ||||||||||
| E(B-V) | 0.034 | ||||||||||
* 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.