All names: Gaia EDR3 3696320705446822016, TIC 350544130, 2QZ J123922.3+005548, SDSS J123922.33+005548.7, SDSS J123922.33+005548.8, Gaia DR3 3696320705446822016, SDSS J123922.34+005548.8, Gaia DR2 3696320705445678848, [SGR2010] J1239+0055, 2MASS J12392231+0055484, [HHD2009] SDSS J1239+0055, WD 1236+012, WIRED J123922.33+005548.7
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Harris et al. 2003 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 39 22.33 (5) | 12 39 22.33 | 12 39 22.33 (3) | 12 39 22.33 (5) | 12 39 22.33 | 12 39 21.55 | 12 39 22.33 | |||
| Declination | 00 55 48.53 (2) | 00 55 48.85 | 00 55 48.56 (2) | 00 55 48.53 (2) | 00 55 48.82 | 00 55 43.68 | 00 55 48.82 | |||
| Spectral type | DA4:+M | DA3.0+dM | DA+M | DA3.0+dM | DA+M | |||||
| Effective temperature | [K] | 6302.0 (7) | 8058.0 (57) | |||||||
| log(g) | [cgs] | 5.05 (0.06) | 5.72 (0.1) | |||||||
| Mass | [M☉] | |||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | |||||||||
| Distance | [pc] | |||||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 12.0 (4) | 13.2 | |||||||
| Proper motion (declination) | [mas/yr] | -19.0 (4) | -21.3 | |||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | yes | WDMS | |||||||
| B magnitude | 19.48 | |||||||||
| V magnitude | 19.40 | |||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 16.15 (0.09) | |||||||||
| H magnitude | 15.87 (0.1) | |||||||||
| K magnitude | 15.37 (0.2) | |||||||||
| u magnitude | 19.57 (0.03) | 19.59 | 19.56 (0.03) | 19.57 (0.03) | 19.58 | 19.57 (0.03) | ||||
| g magnitude | 19.25 (0.01) | 19.27 | 19.26 (0.01) | 19.27 (0.03) | 19.27 | 19.27 (0.03) | ||||
| r magnitude | 19.19 (0.01) | 19.21 | 19.20 (0.01) | 19.21 (0.02) | 19.21 | 19.21 (0.02) | ||||
| i magnitude | 18.40 (0.01) | 18.40 | 18.40 (0.01) | 18.40 (0.02) | 18.40 | 18.40 (0.02) | ||||
| z magnitude | 17.72 (0.02) | 17.78 | 17.75 (0.02) | 17.77 (0.02) | 17.78 | 17.79 (0.02) | ||||
| G magnitude | 19.17 (0.03) | 19.03 | 19.17 (0.01) | |||||||
| BP magnitude | 19.34 (0.03) | 19.28 | ||||||||
| RP magnitude | 17.89 (0.01) | 17.89 | ||||||||
| Pan g magnitude | 19.30 (0.007) | |||||||||
| Pan r magnitude | 19.24 (0.008) | |||||||||
| Pan i magnitude | 18.41 (0.005) | |||||||||
| Pan z magnitude | 17.85 (0.007) | |||||||||
| Pan y magnitude | 17.52 (0.006) | |||||||||
| E(B-V) | ||||||||||
* 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.