All names: WD 0343+247, Gaia DR2 66837563803594880, Gaia EDR3 66837563803594880, GSC2.3 NCG9005784, EQ J0346+249, Gaia DR3 66837563803594880, [HSH97] WD 0346+246, WDJ034646.52+245602.67, 0343+247, LSR J0346+2456, 03467+2456, GSC2 N33300215784, PM J03467+2456, LSPM J0346+2456, J0346+2455
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | Bergeron et al. 2022 | McCleery et al. 2020 | Leggett et al. 2018 | Gaia DR2 | Stilism | Limoges et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 03 46 47.13 (0.2) | 03 46 47.11 (0.3) | 03 46 47.11 (0.3) | 03 46 47.13 | 03 46 46.52 (0.2) | 03 46 47.11 | 03 46 45.50 | ||||||||
| Declination | 24 55 44.15 (0.1) | 24 55 44.73 (0.2) | 24 55 44.73 (0.2) | 24 55 44.15 | 24 56 02.67 (0.1) | 24 55 44.73 | 24 56 09.96 | ||||||||
| Spectral type | DC | DC | DC | DC | DC14.4 | DC | DA: | DC | ? | ||||||
| Effective temperature | [K] | 3534.0 (66) | 3643.0 (55) | 3506.0 (39) | 2970.0 (37) | 3845.0 (165) | |||||||||
| log(g) | [cgs] | 7.59 (0.02) | 7.52 (0.05) | 7.66 (0.3) | 7.70 (0.08) | ||||||||||
| Mass | [M☉] | 0.377 (0.01) | 0.423 (0.007) | 0.32 (0.03) | 0.39 (0.1) | 0.41 (0.06) | |||||||||
| log(Luminosity) | [L☉] | -4.79 | |||||||||||||
| Cooling age | [Gyr] | 12.1300 | 13.3300 | 5.4180 (0.4) | |||||||||||
| log(H/He) | 0.25 | 0.17 | |||||||||||||
| log(C/He) | |||||||||||||||
| log(Ca/He) | |||||||||||||||
| log(Ca/H) | |||||||||||||||
| Parallax | [mas] | 25.29 (0.2) | 25.29 (0.2) | 25.21 (0.3) | 25.21 (0.3) | 25.75 (0.6) | 25.21 (0.3) | 36.00 (5) | 25.29 | 25.29 (0.2) | 25.21 (0.3) | 36.00 (5) | |||
| Distance | [pc] | 39.53 (0.3) | 39.54 (0.3) | 39.67 (0.5) | 39.67 (0.5) | 38.83 (0.9) | 39.67 (0.5) | 27.80 (4) | 39.53 | 39.53 (0.3) | 39.67 (0.5) | 27.78 (4) | |||
| Composition | He+CIA | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 520.1773716 (0.2) | 520.9436224 (0.4) | 520.177 (0.2) | 520.9436224 | ||||||||||
| Proper motion (declination) | [mas/yr] | -1157.434442 (0.2) | -1157.487388 (0.3) | -1157.434 (0.2) | -1157.487388 | ||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | 20.13 (0.4) | ||||||||||||||
| V magnitude | 19.04 | ||||||||||||||
| R magnitude | 18.18 (0.4) | ||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 17.60 (0.03) | ||||||||||||||
| H magnitude | 17.92 (0.06) | ||||||||||||||
| K magnitude | 18.98 (0.2) | ||||||||||||||
| u magnitude | |||||||||||||||
| g magnitude | |||||||||||||||
| r magnitude | |||||||||||||||
| i magnitude | |||||||||||||||
| z magnitude | |||||||||||||||
| G magnitude | 18.57 (0.06) | 18.60 | 18.60 | 18.57 | 18.57 (0.003) | 18.60 | |||||||||
| BP magnitude | 19.32 (0.06) | 19.24 | 19.24 | ||||||||||||
| RP magnitude | 17.78 (0.01) | 17.73 | 17.73 | ||||||||||||
| Pan g magnitude | 19.55 (0.02) | 19.55 (0.02) | |||||||||||||
| Pan r magnitude | 18.54 (0.01) | 18.54 (0.01) | |||||||||||||
| Pan i magnitude | 18.09 (0.007) | 18.09 (0.007) | |||||||||||||
| Pan z magnitude | 17.97 (0.01) | 17.97 (0.01) | |||||||||||||
| Pan y magnitude | 17.93 (0.01) | 17.93 (0.01) | |||||||||||||
| E(B-V) | 0.001 | ||||||||||||||
* 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.