All names: Gaia DR3 921543511769342208, Gaia EDR3 921543511769342208, [HHD2009] SDSS J0804+4138, SDSS J080414.56+413833.5, SDSS J080414.56+413833.4, GALEX J080414.5+413833, SDSS J080414.55+413833.5, LAMOST J080414.56+413833.5, WD 0800+417, WIRED J080414.56+413833.5, WISE J080414.55+413833.5, WISEA J080414.56+413833.5, SDSS J080414.56+413833.6
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 04 14.56 (7) | 08 04 14.56 | 08 04 14.56 (7) | 08 04 14.56 | 08 04 13.97 | 08 04 14.56 | ||
| Declination | 41 38 33.34 (7) | 41 38 33.45 | 41 38 33.34 (7) | 41 38 33.53 | 41 38 29.40 | 41 38 33.57 | ||
| Spectral type | DA+dMe | DA+M | DA dM | DA+M | ||||
| Effective temperature | [K] | 6836.0 (143) | 6476.0 (86) | |||||
| log(g) | [cgs] | 6.87 (0.5) | 6.94 (0.3) | |||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | |||||||
| Distance | [pc] | |||||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 1.0 (4) | 0.6 | |||||
| Proper motion (declination) | [mas/yr] | -4.0 (4) | -5.8 | |||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | WDMS | WDMS | ||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 19.63 (0.03) | 19.63 (0.03) | 19.62 (0.04) | 19.62 | 19.65 (0.04) | |||
| g magnitude | 19.39 (0.01) | 19.39 (0.01) | 19.42 (0.02) | 19.42 | 19.42 (0.02) | |||
| r magnitude | 19.29 (0.01) | 19.29 (0.01) | 19.32 (0.02) | 19.32 | 19.31 (0.02) | |||
| i magnitude | 18.67 (0.01) | 18.67 (0.01) | 18.68 (0.02) | 18.68 | 18.68 (0.02) | |||
| z magnitude | 18.14 (0.02) | 18.14 (0.02) | 18.17 (0.03) | 18.17 | 18.16 (0.03) | |||
| G magnitude | 19.59 (0.06) | 19.59 (0.02) | ||||||
| BP magnitude | 19.49 (0.06) | |||||||
| RP magnitude | 18.31 (0.04) | |||||||
| Pan g magnitude | 19.40 (0.009) | |||||||
| Pan r magnitude | 19.29 (0.005) | |||||||
| Pan i magnitude | 18.68 (0.004) | |||||||
| Pan z magnitude | 18.24 (0.01) | |||||||
| Pan y magnitude | 18.00 (0.04) | |||||||
| E(B-V) | ||||||||
* 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.