All names: SDSS J102216.61+514149.5, Gaia DR2 848436154708548096, SDSS J102216.62+514149.5, Gaia EDR3 848436154708548096, SDSS J102216.66+514149.3, USNO-A2.0 1350-07759480, GALEX J102216.6+514150, Gaia DR3 848436154708548096
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Koester & Kepler 2015 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 22 16.67 (0.1) | 10 22 16.67 (0.1) | 10 22 16.67 | 10 22 16.60 (0.1) | ||||
| Declination | 51 41 49.51 (0.1) | 51 41 49.52 (0.2) | 51 41 49.51 | 51 41 49.64 (0.1) | ||||
| Spectral type | DB | DAB | DB | |||||
| Effective temperature | [K] | 14166.0 (92) | 13322.0 (651) | |||||
| log(g) | [cgs] | 8.00 (0) | 8.09 (0.08) | |||||
| Mass | [M☉] | 0.638 (0.07) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | -4.01 (0.2) | |||||||
| log(C/He) | ||||||||
| log(Ca/He) | <-7.98 | |||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 3.78 (0.2) | 3.51 (0.3) | 3.78 | 3.78 (0.2) | |||
| Distance | [pc] | 264.49 (13) | 284.75 (23) | 292.00 | 264.49 | 264.49 (13) | ||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 39.41244105 (0.2) | 39.473 (0.3) | 39.412 (0.2) | ||||
| Proper motion (declination) | [mas/yr] | -8.060218663 (0.2) | -8.221 (0.6) | -8.06 (0.2) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 17.50 (0.3) | |||||||
| V magnitude | ||||||||
| R magnitude | 17.90 (0.3) | |||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 18.58 (0.02) | |||||||
| g magnitude | 18.66 (0.008) | |||||||
| r magnitude | 18.91 (0.01) | |||||||
| i magnitude | 19.08 (0.02) | |||||||
| z magnitude | 19.31 (0.06) | |||||||
| G magnitude | 18.79 (0.02) | 18.82 | 18.79 | 18.79 (0.003) | ||||
| BP magnitude | 18.75 (0.02) | 18.69 | ||||||
| RP magnitude | 18.88 (0.04) | 18.80 | ||||||
| Pan g magnitude | ||||||||
| Pan r magnitude | ||||||||
| Pan i magnitude | ||||||||
| Pan z magnitude | ||||||||
| Pan y magnitude | ||||||||
| E(B-V) | 0.017 | |||||||
* 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.