All names: 2MASS J23121852+0112336, SDSS J231218.54+011233.2, TIC 262582777, SDSS J231218.53+011233.1, SDSS J231218.53+011233.2, WD 2309+009.1, [SGR2010] J2312+0112, Gaia EDR3 2657464014573745536, Gaia DR2 2657464014573745536, Gaia DR3 2657464014573745536
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 12 18.55 (0.3) | 23 12 18.55 | 23 12 18.55 (0.4) | 23 12 18.54 (0.3) | 23 12 18.50 | |||
| Declination | 01 12 32.96 (0.3) | 01 12 33.08 | 01 12 32.97 (0.3) | 01 12 33.21 (0.3) | 01 12 31.32 | |||
| Spectral type | D+M3 | WD M | ||||||
| Effective temperature | [K] | |||||||
| log(g) | [cgs] | |||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 2.89 (0.4) | 3.39 (0.5) | 2.89 (0.4) | ||||
| Distance | [pc] | 345.97 (44) | 295.25 (43) | 345.96 (44) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 7.674378802 (0.4) | 6.004948712 (0.8) | 7.674 (0.4) | ||||
| Proper motion (declination) | [mas/yr] | -15.43123373 (0.3) | -15.75058442 (0.6) | -15.431 (0.3) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 16.43 (0.01) | |||||||
| H magnitude | 15.80 (0.1) | |||||||
| K magnitude | 15.79 (0.2) | |||||||
| u magnitude | 21.82 (0.1) | 21.49 (0.1) | 21.51 | |||||
| g magnitude | 20.93 (0.03) | 20.83 (0.03) | 20.85 | |||||
| r magnitude | 19.84 (0.02) | 19.79 (0.02) | 19.85 | |||||
| i magnitude | 18.58 (0.01) | 18.57 (0.01) | 18.62 | |||||
| z magnitude | 17.88 (0.02) | 17.61 (0.02) | 17.64 | |||||
| G magnitude | 19.43 (0.1) | 19.43 | 19.43 (0.005) | |||||
| BP magnitude | 20.54 (0.1) | 20.60 | ||||||
| RP magnitude | 18.18 (0.02) | 18.15 | ||||||
| Pan g magnitude | 20.78 (0.02) | |||||||
| Pan r magnitude | 19.87 (0.01) | |||||||
| Pan i magnitude | 18.61 (0.006) | |||||||
| Pan z magnitude | 18.00 (0.006) | |||||||
| Pan y magnitude | 17.69 (0.01) | |||||||
| E(B-V) | 0.050 | |||||||
* 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.