All names: Gaia EDR3 4016589510401457664, SDSS J121640.72+333126.4, SDSS J121640.73+333126.4, Gaia DR3 4016589510401457664, Gaia DR2 4016589510401457664, GALEX J121640.7+333127
| Parameter | Unit | Gaia EDR3 | Stilism | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|
| Right ascension | 12 16 40.76 (0.3) | 12 16 40.72 (0.3) | |||
| Declination | 33 31 26.35 (0.3) | 33 31 26.54 (0.3) | |||
| Spectral type | DC | DC: | |||
| 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] | 2.35 (0.4) | 2.35 (0.4) | ||
| Distance | [pc] | 425.03 (63) | 425.03 (63) | ||
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 24.683 (0.3) | 24.683 (0.3) | ||
| Proper motion (declination) | [mas/yr] | -11.686 (0.3) | -11.686 (0.3) | ||
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | |||||
| H magnitude | |||||
| K magnitude | |||||
| u magnitude | 19.80 (0.04) | ||||
| g magnitude | 19.62 (0.01) | ||||
| r magnitude | 19.81 (0.02) | ||||
| i magnitude | 19.95 (0.03) | ||||
| z magnitude | 20.25 (0.2) | ||||
| G magnitude | 19.72 (0.004) | 19.72 (0.004) | |||
| BP magnitude | 19.68 (0.06) | ||||
| RP magnitude | 19.59 (0.09) | ||||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.016 | ||||
* 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.