All names: Gaia DR3 6217739938701063808, Gaia DR2 6217739938701063808, PSO J221.8417-30.5906, 2MASS J14472235-3035236, Gaia EDR3 6217739938701063808, J1447-3035, TIC 47956105, GALEX J144722.1-303525, NLTT 38356, WDJ144722.32-303523.63, LP 914-20
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Caron et al. 2023 | Blouin et al. 2019 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 47 21.99 (0.08) | 14 47 22.00 (0.1) | 14 47 21.99 | 14 47 22.32 (0.08) | 14 47 22.00 | |||||||
| Declination | -30 35 26.37 (0.07) | -30 35 26.29 (0.07) | -30 35 26.37 | -30 35 23.63 (0.07) | -30 35 26.29 | |||||||
| Spectral type | DA | DA | DA | DA | ||||||||
| Effective temperature | [K] | 6944.0 (45) | 6910.0 (70) | 6939.0 | 6683.0 | 7142.0 (82) | ||||||
| log(g) | [cgs] | 8.02 (0.01) | 8.01 (0.03) | 8.02 | 7.89 | 8.08 (0.02) | ||||||
| Mass | [M☉] | 0.602 (0.01) | 0.598 (0.01) | 0.6 | 0.513 | 0.641 (0.02) | ||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 1.6400 | 1.5960 (0.07) | 1.5870 | 1.5280 | |||||||
| 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] | 17.86 (0.09) | 17.89 (0.1) | 17.89 (0.1) | 17.89 (0.1) | 17.86 | 17.86 (0.09) | 17.89 (0.1) | ||||
| Distance | [pc] | 56.00 (0.3) | 55.90 (0.3) | 55.90 (0.3) | 55.90 (0.3) | 56.00 | 56.00 (0.3) | 55.90 (0.3) | ||||
| Composition | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -266.4849162 (0.1) | -266.263 (0.2) | -266.485 (0.1) | -266.2626749 | |||||||
| Proper motion (declination) | [mas/yr] | -171.5343006 (0.09) | -171.482 (0.2) | -171.534 (0.09) | -171.4816025 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | 17.31 | |||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 16.56 (0.1) | 16.56 (0.1) | 16.56 (0.1) | |||||||||
| H magnitude | 16.35 (0.2) | 16.35 (0.2) | 16.35 (0.2) | |||||||||
| K magnitude | ||||||||||||
| u magnitude | ||||||||||||
| g magnitude | 17.41 (0.008) | |||||||||||
| r magnitude | 17.24 (0.005) | |||||||||||
| i magnitude | 17.22 (0.008) | |||||||||||
| z magnitude | 17.26 (0.006) | |||||||||||
| G magnitude | 17.21 (0.007) | 17.22 | 17.21 | 17.21 (0.003) | 17.22 | |||||||
| BP magnitude | 17.39 (0.007) | 17.38 | 17.38 | |||||||||
| RP magnitude | 16.88 (0.007) | 16.90 | 16.90 | |||||||||
| Pan g magnitude | 17.41 (0.008) | 17.41 (0.008) | 17.41 (0.008) | |||||||||
| Pan r magnitude | 17.24 (0.005) | 17.24 (0.005) | 17.24 (0.005) | |||||||||
| Pan i magnitude | 17.22 (0.008) | 17.22 (0.008) | 17.22 (0.008) | |||||||||
| Pan z magnitude | 17.26 (0.006) | 17.26 (0.006) | 17.26 (0.006) | |||||||||
| Pan y magnitude | 17.26 (0.004) | 17.26 (0.004) | 17.26 (0.004) | |||||||||
| E(B-V) | 0.003 | |||||||||||
* 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.