All names: USNO-B1.0 1619-00140431, Gaia DR3 2263690864438162944, Gaia EDR3 2263690864438162944, TIC 280033055, HS 1951+7147, 2MASS J19504582+7155392, J1950+7155, WDJ195045.81+715539.71, Gaia DR2 2263690864438162944, WD 1951+717, GALEX J195045.8+715539
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Vincent et al. 2020 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 19 50 45.89 (0.05) | 19 50 45.89 (0.05) | 19 50 45.89 | 19 50 45.81 (0.05) | 19 50 45.89 | 19 50 45.31 | ||||
| Declination | 71 55 40.97 (0.05) | 71 55 40.93 (0.07) | 71 55 40.97 | 71 55 39.70 (0.05) | 71 55 40.93 | 71 55 34.68 | ||||
| Spectral type | DA | DA | DA4.3 | |||||||
| Effective temperature | [K] | 11451.0 (90) | 11549.0 (151) | |||||||
| log(g) | [cgs] | 8.18 (0.01) | ||||||||
| Mass | [M☉] | 0.711 (0.008) | 0.715 (0.01) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 11.61 (0.05) | 11.68 (0.07) | 11.61 | 11.61 (0.05) | 11.68 (0.07) | ||||
| Distance | [pc] | 86.11 (0.4) | 85.61 (0.5) | 86.11 | 86.11 (0.4) | 85.61 (0.5) | ||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 22.79797329 (0.06) | 22.78176665 (0.1) | 22.798 (0.06) | 22.78176665 | |||||
| Proper motion (declination) | [mas/yr] | 79.31856941 (0.06) | 78.95404886 (0.2) | 79.319 (0.06) | 78.95404886 | |||||
| Variability | NOV | |||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 16.60 | |||||||||
| V magnitude | ||||||||||
| R magnitude | 16.60 | |||||||||
| I magnitude | ||||||||||
| J magnitude | 16.52 (0.1) | |||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 16.70 (0.005) | 16.71 | 16.70 | 16.70 (0.003) | 16.71 | |||||
| BP magnitude | 16.72 (0.005) | 16.72 | 16.72 | |||||||
| RP magnitude | 16.71 (0.008) | 16.72 | 16.72 | |||||||
| Pan g magnitude | 16.65 (0.005) | |||||||||
| Pan r magnitude | 16.81 (0.004) | |||||||||
| Pan i magnitude | 17.02 (0.002) | |||||||||
| Pan z magnitude | 17.22 (0.005) | |||||||||
| Pan y magnitude | 17.35 (0.01) | |||||||||
| E(B-V) | 0.008 | |||||||||
* 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.