All names: Gaia DR3 4459225816274819712, Gaia EDR3 4459225816274819712, Gaia DR2 4459225811975921664, GALEX J163429.2+113119, SDSS J163429.28+113119.16, SDSS J163429.28+113119.1
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Bedard et al. 2020 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 34 29.28 (0.4) | 16 34 29.28 | 16 34 29.28 (0.4) | 16 34 29.29 (0.4) | |||||
| Declination | 11 31 19.11 (0.3) | 11 31 19.17 | 11 31 19.11 (0.3) | 11 31 19.18 (0.3) | |||||
| Spectral type | DA+M | DA+M | DA+M | ||||||
| Effective temperature | [K] | 37838.0 (1286) | 44994.0 (2023) | ||||||
| log(g) | [cgs] | 7.16 (0.2) | 6.96 (0.2) | ||||||
| Mass | [M☉] | 0.34 (0.05) | 0.352 (0.06) | ||||||
| log(Luminosity) | [L☉] | 0.08 (0.1) | |||||||
| Cooling age | [Gyr] | 0.0001 | |||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| log(C/H) | |||||||||
| log(N/H) | |||||||||
| log(O/H) | |||||||||
| log(Na/H) | |||||||||
| log(Mg/H) | |||||||||
| log(Al/H) | |||||||||
| log(Si/H) | |||||||||
| log(P/H) | |||||||||
| log(S/H) | |||||||||
| log(Sc/H) | |||||||||
| log(Ti/H) | |||||||||
| log(Cr/H) | |||||||||
| log(Mn/H) | |||||||||
| log(Fe/H) | |||||||||
| log(Ni/H) | |||||||||
| Parallax | [mas] | 1.22 (0.5) | 1.12 (0.6) | 1.22 (0.5) | |||||
| Distance | [pc] | 819.54 (338) | 890.71 (438) | 819.54 (338) | |||||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -10.65735987 (0.4) | -14.095 (0.8) | -10.657 (0.4) | |||||
| Proper motion (declination) | [mas/yr] | -4.53596907 (0.3) | -5.792 (0.6) | -4.536 (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 | 19.18 (0.02) | 19.17 (0.03) | 19.18 (0.03) | ||||||
| g magnitude | 19.45 (0.01) | 19.45 (0.01) | 19.45 (0.01) | ||||||
| r magnitude | 19.57 (0.01) | 19.57 (0.02) | 19.57 (0.01) | ||||||
| i magnitude | 19.49 (0.02) | 19.50 (0.02) | 19.49 (0.02) | ||||||
| z magnitude | 19.36 (0.05) | 19.36 (0.05) | 19.36 (0.05) | ||||||
| G magnitude | 19.73 (0.03) | 19.64 | 19.73 (0.009) | ||||||
| BP magnitude | 19.48 (0.03) | 19.44 | |||||||
| RP magnitude | 19.15 (0.03) | 19.06 | |||||||
| Pan g magnitude | 19.47 (0.009) | ||||||||
| Pan r magnitude | 19.62 (0.005) | ||||||||
| Pan i magnitude | 19.50 (0.01) | ||||||||
| Pan z magnitude | 19.41 (0.02) | ||||||||
| Pan y magnitude | 19.24 (0.02) | ||||||||
| E(B-V) | 0.053 | ||||||||
* 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.