All names: SDSS J102043.35+185410.7, Gaia DR2 624222476557683072, Gaia DR3 624222476557683072, Gaia EDR3 624222476557683072, SDSS J102043.35+185410.73
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 20 43.36 (0.4) | 10 20 43.35 | 10 20 43.36 (0.7) | 10 20 43.36 (0.4) | ||||
| Declination | 18 54 10.68 (0.4) | 18 54 10.73 | 18 54 10.68 (0.6) | 18 54 10.73 (0.4) | ||||
| Spectral type | DAZ: | DAZ | ||||||
| Effective temperature | [K] | 6681.0 (108) | ||||||
| log(g) | [cgs] | 5.30 (0.2) | ||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 0.21 (0.6) | 1.22 (0.9) | 0.21 (0.6) | ||||
| Distance | [pc] | 4792.76 (13120) | 816.92 (590) | 4793.86 (13127) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -1.397355122 (0.5) | -3.414970392 (1) | -1.397 (0.5) | ||||
| Proper motion (declination) | [mas/yr] | -2.830555163 (0.4) | -4.322591984 (1) | -2.831 (0.4) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 20.98 (0.08) | 20.94 (0.08) | 20.94 (0.08) | |||||
| g magnitude | 20.29 (0.02) | 20.29 (0.03) | 20.29 (0.03) | |||||
| r magnitude | 20.02 (0.02) | 19.98 (0.03) | 19.98 (0.03) | |||||
| i magnitude | 20.07 (0.03) | 20.06 (0.03) | 20.06 (0.03) | |||||
| z magnitude | 20.06 (0.1) | 20.03 (0.09) | 20.03 (0.09) | |||||
| G magnitude | 20.06 (0.05) | 20.11 | 20.06 (0.006) | |||||
| BP magnitude | 20.16 (0.05) | 20.36 | ||||||
| RP magnitude | 19.59 (0.07) | 19.45 | ||||||
| Pan g magnitude | 20.29 (0.02) | |||||||
| Pan r magnitude | 20.03 (0.01) | |||||||
| Pan i magnitude | 19.98 (0.02) | |||||||
| Pan z magnitude | 20.02 (0.01) | |||||||
| Pan y magnitude | 19.84 (0.08) | |||||||
| E(B-V) | 0.022 | |||||||
* 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.