All names: Gaia EDR3 3869075968106834176, SDSS J104240.80+090117.8, SDSS J104240.80+090117.82, Gaia DR2 3869075968106834176, Gaia DR3 3869075968106834176
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 42 40.81 (0.3) | 10 42 40.81 | 10 42 40.81 (0.5) | 10 42 40.81 (0.3) | ||||
| Declination | 09 01 17.79 (0.3) | 09 01 17.81 | 09 01 17.79 (0.4) | 09 01 17.85 (0.3) | ||||
| Spectral type | sdA | sdA | ||||||
| Effective temperature | [K] | 7017.0 (49) | ||||||
| log(g) | [cgs] | 5.59 (0.2) | ||||||
| Mass | [M☉] | 0.14507 (0.0005) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 0.25 (0.4) | -0.51 (0.5) | 0.25 (0.4) | ||||
| Distance | [pc] | 3947.05 (6080) | 3946.33 (6078) | |||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 0.219555724 (0.4) | 0.443322967 (0.9) | 0.22 (0.4) | ||||
| Proper motion (declination) | [mas/yr] | -3.4944299 (0.3) | -2.252579816 (0.7) | -3.494 (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 | 20.73 (0.07) | 20.70 (0.06) | 20.70 (0.06) | |||||
| g magnitude | 19.82 (0.02) | 19.83 (0.03) | 19.83 (0.03) | |||||
| r magnitude | 19.60 (0.02) | 19.60 (0.02) | 19.60 (0.02) | |||||
| i magnitude | 19.53 (0.02) | 19.52 (0.02) | 19.52 (0.02) | |||||
| z magnitude | 19.52 (0.07) | 19.50 (0.07) | 19.50 (0.07) | |||||
| G magnitude | 19.59 (0.06) | 19.62 | 19.59 (0.005) | |||||
| BP magnitude | 19.80 (0.06) | 19.59 | ||||||
| RP magnitude | 19.28 (0.07) | 19.13 | ||||||
| Pan g magnitude | 19.80 (0.01) | |||||||
| Pan r magnitude | 19.63 (0.01) | |||||||
| Pan i magnitude | 19.54 (0.01) | |||||||
| Pan z magnitude | 19.56 (0.01) | |||||||
| Pan y magnitude | 19.53 (0.05) | |||||||
| E(B-V) | 0.026 | |||||||
* 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.