All names: SDSS J121004.51+190236.8, TIC 357289398, SDSS J121004.53+190236.7, [SGR2010] J1210+1902, 2MASS J12100451+1902369, WD 1207+193, Gaia DR3 3950180034580554624, Gaia EDR3 3950180034580554624, Gaia DR2 3950180034580554624
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 10 04.54 (0.2) | 12 10 04.52 | 12 10 04.54 (0.2) | 12 10 04.51 (0.2) | 12 10 03.86 | |||
| Declination | 19 02 36.35 (0.1) | 19 02 36.87 | 19 02 36.37 (0.1) | 19 02 37.13 (0.1) | 19 02 30.48 | |||
| Spectral type | D+M1 | WD+M1 | ||||||
| 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] | 1.47 (0.2) | 1.36 (0.2) | 1.47 (0.2) | ||||
| Distance | [pc] | 678.49 (82) | 735.73 (122) | 678.47 (82) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 33.52230426 (0.2) | 33.12231837 (0.4) | 33.522 (0.2) | ||||
| Proper motion (declination) | [mas/yr] | -48.96984822 (0.1) | -48.57714176 (0.3) | -48.97 (0.1) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | yes | |||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 16.15 (0.09) | |||||||
| H magnitude | 15.46 (0.1) | |||||||
| K magnitude | 15.41 (0.1) | |||||||
| u magnitude | 22.18 (0.2) | 22.23 (0.2) | 22.23 | |||||
| g magnitude | 20.23 (0.02) | 20.22 (0.02) | 20.22 | |||||
| r magnitude | 18.73 (0.009) | 18.76 (0.009) | 18.76 | |||||
| i magnitude | 17.90 (0.008) | 17.90 (0.008) | 17.90 | |||||
| z magnitude | 17.39 (0.01) | 17.41 (0.01) | 17.41 | |||||
| G magnitude | 18.51 (0.04) | 18.54 | 18.51 (0.003) | |||||
| BP magnitude | 19.64 (0.04) | 19.66 | ||||||
| RP magnitude | 17.47 (0.01) | 17.49 | ||||||
| Pan g magnitude | 19.96 (0.01) | |||||||
| Pan r magnitude | 18.74 (0.01) | |||||||
| Pan i magnitude | 17.87 (0.005) | |||||||
| Pan z magnitude | 17.48 (0.007) | |||||||
| Pan y magnitude | 17.27 (0.006) | |||||||
| E(B-V) | 0.021 | |||||||
* 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.