All names: WISEA J121348.83+642520.0, SDSS J121348.81+642520.1, SDSS J121348.80+642520.1, Gaia DR2 1584816548240757120, [VV2006b] J121348.8+642520, SDSS J121348.81+642520.2, Gaia EDR3 1584816548240757120, [VV2010b] J121348.8+642520, WISE J121348.83+642520.0, [MML2015] 5BZB J1213+6425, [MGL2009] BZB J1213+6425, WIRED J121348.80+642520.1, Gaia DR3 1584816548240757120
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 13 48.81 (0.3) | 12 13 48.81 | 12 13 48.81 (0.4) | 12 13 48.81 (0.3) | 12 13 48.81 | |||
| Declination | 64 25 20.19 (0.3) | 64 25 20.24 | 64 25 20.19 (0.3) | 64 25 20.19 (0.3) | 64 25 20.17 | |||
| Spectral type | DC | DC | ||||||
| Effective temperature | [K] | 6306.0 (12) | ||||||
| log(g) | [cgs] | 10.00 (0.006) | ||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | -0.28 (0.4) | 0.01 (0.4) | 0.01 (0.4) | ||||
| Distance | [pc] | 170009.54 (12727867) | 169491.53 (12651537) | |||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 0.177925052 (0.5) | -0.383879762 (0.7) | 0.178 (0.5) | ||||
| Proper motion (declination) | [mas/yr] | 0.287770365 (0.4) | -0.972258291 (0.6) | 0.288 (0.4) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 19.78 | |||||||
| V magnitude | 19.32 | |||||||
| R magnitude | 19.40 | |||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 19.90 (0.04) | 19.76 (0.05) | 19.79 (0.05) | |||||
| g magnitude | 19.43 (0.01) | 19.42 (0.01) | 19.44 (0.03) | |||||
| r magnitude | 19.14 (0.01) | 19.16 (0.01) | 19.19 (0.02) | |||||
| i magnitude | 18.99 (0.02) | 18.98 (0.01) | 19.01 (0.03) | |||||
| z magnitude | 18.78 (0.04) | 18.79 (0.04) | 18.80 (0.04) | |||||
| G magnitude | 19.88 (0.07) | 19.87 | 19.88 (0.01) | |||||
| BP magnitude | 20.32 (0.07) | 20.10 | ||||||
| RP magnitude | 19.29 (0.06) | 19.14 | ||||||
| Pan g magnitude | 19.61 (0.03) | |||||||
| Pan r magnitude | 19.43 (0.03) | |||||||
| Pan i magnitude | 19.22 (0.01) | |||||||
| Pan z magnitude | 18.95 (0.04) | |||||||
| Pan y magnitude | 18.91 (0.07) | |||||||
| E(B-V) | 0.019 | |||||||
* 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.