All names: Gaia EDR3 670476216320207104, SDSS J080414.52+193607.1, GALEX J080414.5+193607, Gaia DR2 670476216320207104, LAMOST J080414.56+193607.2, SDSS J080414.52+193607.0, SDSS J080414.52+193607.02, Gaia DR3 670476216320207104
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Gaia DR2 | Stilism | Guo et al. 2015 | Kepler et al. 2015 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 04 14.52 (0.1) | 08 04 14.53 | 08 04 14.52 (0.1) | 08 04 14.52 | 08 04 14.53 (0.1) | ||||||
| Declination | 19 36 06.97 (0.08) | 19 36 07.06 | 19 36 06.98 (0.1) | 19 36 06.97 | 19 36 07.25 (0.08) | ||||||
| Spectral type | DA | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 24423.0 (90) | 24101.0 (1334) | ||||||||
| log(g) | [cgs] | 8.49 (0) | 8.44 (0.06) | ||||||||
| Mass | [M☉] | 0.912 (0) | 0.9 (0.04) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 4.82 (0.1) | 4.86 (0.2) | 4.82 | 4.82 (0.1) | ||||||
| Distance | [pc] | 207.68 (6) | 205.86 (8) | 207.68 | 207.68 (6) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -8.527872553 (0.1) | -8.370474683 (0.3) | -8.528 (0.1) | |||||||
| Proper motion (declination) | [mas/yr] | -17.51324915 (0.09) | -17.27095555 (0.2) | -17.513 (0.09) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 18.34 (0.05) | ||||||||||
| H magnitude | 18.40 (0.1) | ||||||||||
| K magnitude | |||||||||||
| u magnitude | 17.41 (0.009) | 17.41 (0.01) | 17.41 (0.009) | ||||||||
| g magnitude | 17.53 (0.006) | 17.53 (0.01) | 17.53 (0.006) | ||||||||
| r magnitude | 17.97 (0.007) | 17.97 (0.01) | 17.97 (0.007) | ||||||||
| i magnitude | 18.28 (0.01) | 18.28 (0.01) | 18.27 (0.01) | ||||||||
| z magnitude | 18.64 (0.03) | 18.64 (0.03) | 18.64 (0.03) | ||||||||
| G magnitude | 17.75 (0.009) | 17.78 | 17.75 | 17.75 (0.003) | |||||||
| BP magnitude | 17.67 (0.009) | 17.59 | |||||||||
| RP magnitude | 17.96 (0.01) | 17.92 | |||||||||
| Pan g magnitude | 17.58 (0.005) | ||||||||||
| Pan r magnitude | 17.95 (0.006) | ||||||||||
| Pan i magnitude | 18.27 (0.007) | ||||||||||
| Pan z magnitude | 18.54 (0.01) | ||||||||||
| Pan y magnitude | 18.73 (0.01) | ||||||||||
| E(B-V) | 0.009 | ||||||||||
* 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.