All names: WD 0306-012, SDSS J030904.82-010101.0, SDSS J030904.83-010101.0, SDSS J030904.82-010100.9, SDSS J030904.82-010100.8, Gaia DR2 3265505828907625856, WIRED J030904.82-010100.8, TIC 49800305, SDSS J030904.81-010100.8, 2MASS J03090482-0101005, Gaia EDR3 3265505828907625856, Gaia DR3 3265505828907625856
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 03 09 04.85 (0.2) | 03 09 04.83 | 03 09 04.85 (0.3) | 03 09 04.82 (0.2) | 03 09 04.83 | 03 09 04.80 | 03 09 04.82 | |||
| Declination | -01 01 00.76 (0.2) | -01 01 00.94 | -01 01 00.77 (0.2) | -01 01 00.95 (0.2) | -01 01 00.98 | -01 00 53.64 | -01 01 00.88 | |||
| Spectral type | DA+dM | DA+M | DA d | DA+M | ||||||
| Effective temperature | [K] | 6300.0 (1) | 6300.0 (3) | |||||||
| log(g) | [cgs] | 8.60 (0.2) | 10.00 (0.003) | |||||||
| Mass | [M☉] | |||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 1.13 (0.2) | 1.12 (0.3) | 1.13 (0.2) | ||||||
| Distance | [pc] | 881.37 (190) | 895.13 (267) | 881.37 (190) | ||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 27.39232794 (0.3) | 27.47797841 (0.5) | 27.392 (0.3) | 23.2 | |||||
| Proper motion (declination) | [mas/yr] | 11.78663203 (0.2) | 12.19342505 (0.5) | 11.787 (0.2) | 8.9 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | ||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 16.34 (0.01) | |||||||||
| H magnitude | 15.85 (0.009) | |||||||||
| K magnitude | 15.60 (0.01) | |||||||||
| u magnitude | 20.90 (0.07) | 20.78 (0.09) | 20.77 (0.09) | 20.78 | 20.78 (0.09) | |||||
| g magnitude | 20.19 (0.02) | 20.23 (0.03) | 20.24 (0.03) | 20.24 | 20.26 (0.03) | |||||
| r magnitude | 19.54 (0.01) | 19.50 (0.02) | 19.50 (0.02) | 19.50 | 19.51 (0.02) | |||||
| i magnitude | 18.45 (0.01) | 18.43 (0.01) | 18.43 (0.03) | 18.43 | 18.43 (0.03) | |||||
| z magnitude | 17.74 (0.02) | 17.76 (0.02) | 17.77 (0.02) | 17.77 | 17.76 (0.02) | |||||
| G magnitude | 19.00 (0.07) | 19.03 | 19.00 (0.004) | |||||||
| BP magnitude | 20.01 (0.07) | 19.97 | ||||||||
| RP magnitude | 17.97 (0.02) | 17.92 | ||||||||
| Pan g magnitude | 20.10 (0.03) | |||||||||
| Pan r magnitude | 19.46 (0.02) | |||||||||
| Pan i magnitude | 18.40 (0.01) | |||||||||
| Pan z magnitude | 17.83 (0.01) | |||||||||
| Pan y magnitude | 17.55 (0.01) | |||||||||
| E(B-V) | 0.042 | |||||||||
* 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.