All names: WDJ121238.09-364240.22, UCAC4 267-062008, Gaia DR3 3461474230164981760, WISE J121237.99-364239.6, WISEA J121237.98-364239.5, 2MASS J12123809-3642402, TIC 134765602, DENIS J121238.0-364240, Gaia EDR3 3461474230164981760, WDJ121238.09-364240.21, Gaia DR2 3461474230164981760
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|
| Right ascension | 12 12 37.94 (0.03) | 12 12 37.94 | 12 12 37.94 | 12 12 38.09 (0.03) | 12 12 37.94 | ||
| Declination | -36 42 39.05 (0.02) | -36 42 39.08 | -36 42 39.05 | -36 42 40.22 (0.02) | -36 42 39.08 | ||
| Spectral type | DA | DA | |||||
| Effective temperature | [K] | 19889.0 (212) | |||||
| log(g) | [cgs] | 7.79 (0.01) | |||||
| Mass | [M☉] | 0.516 (0.006) | |||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | ||||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | 12.04 (0.04) | 12.10 (0.06) | 12.04 | 12.04 (0.04) | 12.10 (0.06) | |
| Distance | [pc] | 83.07 (0.3) | 82.64 (0.4) | 83.07 | 83.07 (0.3) | 82.64 (0.4) | |
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | -116.2379349 (0.04) | -116.2641494 (0.08) | -116.238 (0.04) | -116.2641494 | ||
| Proper motion (declination) | [mas/yr] | 73.23065373 (0.02) | 73.1543362 (0.04) | 73.231 (0.02) | 73.1543362 | ||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | 15.05 (0.08) | ||||||
| V magnitude | 15.10 (0.04) | ||||||
| R magnitude | 15.48 (0.06) | ||||||
| I magnitude | 15.31 (0.04) | ||||||
| J magnitude | 15.62 (0.05) | ||||||
| H magnitude | 15.48 (0.09) | ||||||
| K magnitude | |||||||
| u magnitude | |||||||
| g magnitude | 14.97 (0.05) | ||||||
| r magnitude | 15.30 (0.03) | ||||||
| i magnitude | 15.87 (0.4) | ||||||
| z magnitude | |||||||
| G magnitude | 15.09 (0.001) | 15.11 | 15.09 | 15.09 (0.003) | 15.11 | ||
| BP magnitude | 15.01 (0.001) | 14.99 | 14.99 | ||||
| RP magnitude | 15.28 (0.001) | 15.28 | 15.28 | ||||
| Pan g magnitude | |||||||
| Pan r magnitude | |||||||
| Pan i magnitude | |||||||
| Pan z magnitude | |||||||
| Pan y magnitude | |||||||
| E(B-V) | 0.004 | ||||||
* 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.