All names: GD 395, PSO J323.6015+36.9217, 21344+3655, EGGR 448, 2MASS J21342449+3655197, USNO-B1.0 1269-00536813, Gaia DR2 1951870157081161216, LSPM J2134+3655, Gaia DR3 1951870157081161216, GALEX J213424.4+365519, J2134+3655, PM J21344+3655, BPM 96804, WD 2132+367, TIC 427819257, WDJ213424.51+365519.95, Gaia EDR3 1951870157081161216
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Blouin et al. 2019 | Gaia DR2 | Stilism | Limoges et al. 2015 | Gianninas et al. 2011 | Zuckerman et al. 2003 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 34 24.36 (0.03) | 21 34 24.37 (0.03) | 21 34 24.37 (0.03) | 21 34 24.36 | 21 34 24.51 (0.03) | 21 34 24.37 | 21 34 24.94 | |||||||||
| Declination | 36 55 18.07 (0.03) | 36 55 18.13 (0.04) | 36 55 18.13 (0.04) | 36 55 18.07 | 36 55 19.94 (0.03) | 36 55 18.13 | 36 55 23.88 | |||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA6.8 | DA4 | |||||||
| Effective temperature | [K] | 7556.0 (73) | 7791.0 (27) | 7365.3 (56) | 7415.0 (70) | 7370.0 (119) | 7420.0 (121) | 7390.0 | 7578.0 (36) | |||||||
| log(g) | [cgs] | 8.12 (0.03) | 8.22 (0.005) | 8.09 (0.02) | 8.12 (0.02) | 8.17 (0.1) | 8.16 (0.1) | 8.08 | 8.15 (0.008) | |||||||
| Mass | [M☉] | 0.669 (0.02) | 0.734 (0.005) | 0.665 (0.01) | 0.7 (0.07) | 0.69 (0.07) | 0.683 (0.007) | |||||||||
| log(Luminosity) | [L☉] | -3.46 | ||||||||||||||
| Cooling age | [Gyr] | 1.6700 | 1.5370 (0.06) | |||||||||||||
| log(H/He) | ||||||||||||||||
| log(C/He) | ||||||||||||||||
| log(Ca/He) | ||||||||||||||||
| log(Ca/H) | <-10.856 | |||||||||||||||
| 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] | 25.36 (0.04) | 25.36 (0.04) | 25.34 (0.05) | 25.34 (0.05) | 25.34 (0.05) | 25.34 (0.05) | 25.36 | 25.36 (0.04) | 25.34 (0.05) | ||||||
| Distance | [pc] | 39.44 (0.06) | 39.43 (0.06) | 39.46 (0.08) | 39.46 (0.08) | 39.46 (0.08) | 39.46 (0.08) | 35.60 (2) | 29.00 | 39.44 | 39.44 (0.06) | 39.46 (0.08) | ||||
| Composition | H | H | H | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -112.2575102 (0.03) | -112.1956194 (0.07) | -112.258 (0.03) | -112.1956194 | |||||||||||
| Proper motion (declination) | [mas/yr] | -116.9069426 (0.04) | -117.1337552 (0.09) | -116.907 (0.04) | -117.1337552 | |||||||||||
| Variability | ||||||||||||||||
| Magnetic | ||||||||||||||||
| Bd | [MG] | |||||||||||||||
| Infrared excess (disk) | ||||||||||||||||
| Binarity | ||||||||||||||||
| B magnitude | 16.00 | |||||||||||||||
| V magnitude | ||||||||||||||||
| R magnitude | 15.90 | |||||||||||||||
| I magnitude | ||||||||||||||||
| J magnitude | 15.90 (0.01) | 15.81 (0.07) | 15.81 (0.07) | |||||||||||||
| H magnitude | 15.93 (0.2) | 15.93 (0.2) | 15.93 (0.2) | |||||||||||||
| K magnitude | 15.45 (0.2) | 15.45 (0.2) | 15.45 (0.2) | |||||||||||||
| u magnitude | ||||||||||||||||
| g magnitude | 16.50 (0.003) | |||||||||||||||
| r magnitude | 16.38 (0.003) | |||||||||||||||
| i magnitude | 16.39 (0.002) | |||||||||||||||
| z magnitude | 16.46 (0.004) | |||||||||||||||
| G magnitude | 16.33 (0.003) | 16.35 | 16.35 | 16.33 | 16.33 (0.003) | 16.35 | ||||||||||
| BP magnitude | 16.49 (0.003) | 16.49 | 16.49 | |||||||||||||
| RP magnitude | 16.05 (0.003) | 16.05 | 16.05 | |||||||||||||
| Pan g magnitude | 16.50 (0.002) | 16.50 (0.003) | 16.50 (0.003) | |||||||||||||
| Pan r magnitude | 16.38 (0.003) | 16.38 (0.003) | 16.38 (0.003) | |||||||||||||
| Pan i magnitude | 16.39 (0.002) | 16.39 (0.002) | 16.39 (0.002) | |||||||||||||
| Pan z magnitude | 16.46 (0.004) | 16.46 (0.004) | 16.46 (0.004) | |||||||||||||
| Pan y magnitude | 16.50 (0.004) | 16.50 (0.005) | 16.50 (0.005) | |||||||||||||
| E(B-V) | 0.002 | |||||||||||||||
* 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.