All names: [SGR2010] J2339+0744, 2MASS J23392228+0744002, Gaia EDR3 2757940342057283584, TIC 404522083, WD 2336+074, Gaia DR2 2757940342057283584, SDSS J233922.26+074400.3, SDSS J233922.27+074400.3, Gaia DR3 2757940342057283584, SDSS J233922.27+074400.4, LAMOST J233922.26+074400.3
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 39 22.25 (0.3) | 23 39 22.27 | 23 39 22.27 | 23 39 22.28 (0.3) | 23 39 21.91 | 23 39 22.27 | |||
| Declination | 07 44 00.10 (0.2) | 07 44 00.36 | 07 44 00.38 | 07 44 00.54 (0.2) | 07 43 55.56 | 07 44 00.39 | |||
| Spectral type | DA+M | DA+M2 | DA3.3+M2 | DA+M | |||||
| Effective temperature | [K] | 15071.0 (743) | 6300.0 (3) | ||||||
| log(g) | [cgs] | 7.78 (0.2) | 5.00 (0.005) | ||||||
| Mass | [M☉] | 0.49 (0.09) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 2.65 (0.3) | 2.65 (0.3) | ||||||
| Distance | [pc] | 377.95 (45) | 600.00 (62) | 377.96 (45) | |||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -28.69680459 (0.4) | -28.697 (0.4) | ||||||
| Proper motion (declination) | [mas/yr] | -27.91604984 (0.3) | -27.916 (0.3) | ||||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | yes | WDMS | ||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 15.60 (0.05) | ||||||||
| H magnitude | 15.23 (0.1) | ||||||||
| K magnitude | 14.67 (0.07) | ||||||||
| u magnitude | 19.87 (0.04) | 19.84 | 19.87 (0.04) | 19.84 | 19.84 (0.04) | ||||
| g magnitude | 19.07 (0.009) | 19.09 | 19.07 (0.009) | 19.07 | 19.09 (0.02) | ||||
| r magnitude | 18.22 (0.007) | 18.22 | 18.23 (0.007) | 18.23 | 18.22 (0.02) | ||||
| i magnitude | 17.39 (0.006) | 17.39 | 17.39 (0.006) | 17.40 | 17.39 (0.01) | ||||
| z magnitude | 16.88 (0.01) | 16.89 | 16.88 (0.01) | 16.88 | 16.89 (0.02) | ||||
| G magnitude | 18.06 (0.03) | 18.06 (0.006) | |||||||
| BP magnitude | 18.79 (0.03) | ||||||||
| RP magnitude | 16.99 (0.007) | ||||||||
| Pan g magnitude | 18.99 (0.01) | ||||||||
| Pan r magnitude | 18.24 (0.003) | ||||||||
| Pan i magnitude | 17.41 (0.004) | ||||||||
| Pan z magnitude | 16.98 (0.004) | ||||||||
| Pan y magnitude | 16.75 (0.003) | ||||||||
| E(B-V) | 0.084 | ||||||||
* 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.