All names: Gaia EDR3 4449370275078251776, Gaia DR3 4449370275078251776, TIC 377457122, 2MASS J16474629+1319233, Gaia DR2 4449370275077572608, SDSS J164746.27+131923.4, SDSS J164746.26+131923.4, WIRED J164746.26+131923.4, GALEX J164746.3+131923
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 47 46.25 (0.2) | 16 47 46.27 | 16 47 46.25 (0.3) | 16 47 46.27 (0.2) | 16 47 46.27 | ||||
| Declination | 13 19 23.69 (0.2) | 13 19 23.43 | 13 19 23.67 (0.2) | 13 19 23.38 (0.2) | 13 19 23.43 | ||||
| Spectral type | DA+M | DA+M | DA+M | ||||||
| Effective temperature | [K] | 34018.0 (365) | 35719.0 (304) | ||||||
| log(g) | [cgs] | 7.84 (0.07) | 7.45 (0.05) | ||||||
| Mass | [M☉] | 0.57 (0.03) | |||||||
| log(Luminosity) | [L☉] | -0.56 (0.05) | |||||||
| Cooling age | [Gyr] | 0.0059 (0.0003) | |||||||
| 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] | 1.30 (0.3) | 0.02 (0.4) | 1.30 (0.3) | |||||
| Distance | [pc] | 770.29 (189) | 64106.88 (1782821) | 770.30 (189) | |||||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -19.21257214 (0.3) | -20.47387818 (0.5) | -19.213 (0.3) | |||||
| Proper motion (declination) | [mas/yr] | 19.30647486 (0.2) | 19.81860288 (0.4) | 19.306 (0.2) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | ||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.41 (0.1) | ||||||||
| H magnitude | 16.23 (0.1) | ||||||||
| K magnitude | 15.63 (0.2) | ||||||||
| u magnitude | 17.74 (0.01) | 17.73 (0.02) | 17.73 (0.02) | ||||||
| g magnitude | 17.96 (0.006) | 17.97 (0.01) | 17.97 (0.01) | ||||||
| r magnitude | 18.27 (0.008) | 18.29 (0.01) | 18.29 (0.01) | ||||||
| i magnitude | 18.07 (0.008) | 18.09 (0.01) | 18.09 (0.01) | ||||||
| z magnitude | 17.73 (0.02) | 17.80 (0.02) | 17.80 (0.02) | ||||||
| G magnitude | 18.27 (0.01) | 18.22 | 18.27 (0.004) | ||||||
| BP magnitude | 18.07 (0.01) | 18.02 | |||||||
| RP magnitude | 17.68 (0.01) | 17.69 | |||||||
| Pan g magnitude | 18.03 (0.006) | ||||||||
| Pan r magnitude | 18.30 (0.005) | ||||||||
| Pan i magnitude | 18.10 (0.005) | ||||||||
| Pan z magnitude | 17.86 (0.007) | ||||||||
| Pan y magnitude | 17.69 (0.009) | ||||||||
| E(B-V) | 0.061 | ||||||||
* 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.