All names: Gaia DR3 3274761620869767168, LSPM J0338+0409, WD 0336+040, 2MASS J03385615+0409445, J0338+0409, TIC 299551824, KUV 03363+0400, LAMOST J033856.19+040943.9, GALEX J033856.2+040944, SDSS J033856.20+040944.0, Gaia DR2 3274761620869767168, SDSS J033856.19+040943.9, WDJ033856.15+040944.39, USNO-B1.0 0941-00036298, Gaia EDR3 3274761620869767168
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Guo et al. 2015 | Gianninas et al. 2011 | Koester et al. 2009 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 03 38 56.29 (0.06) | 03 38 56.29 (0.09) | 03 38 56.29 | 03 38 56.15 (0.06) | 03 38 56.29 | 03 38 55.63 | |||||||||||
| Declination | 04 09 43.06 (0.05) | 04 09 43.10 (0.07) | 04 09 43.06 | 04 09 44.39 (0.05) | 04 09 43.10 | 04 09 43.56 | |||||||||||
| Spectral type | DA | DA | DA | DA? | DA | DA | DA5.7 | DA | |||||||||
| Effective temperature | [K] | 8762.0 (42) | 8838.0 (36) | 8762.0 (40) | 8654.0 | 8467.0 | 28542.0 (739) | 8870.0 (129) | 8703.0 (12) | 8899.0 (102) | |||||||
| log(g) | [cgs] | 7.87 (0.01) | 7.89 (0.01) | 7.86 (0.01) | 7.84 | 7.75 | 7.37 (0.1) | 8.18 (0.06) | 7.83 (0.02) | 7.92 (0.02) | |||||||
| Mass | [M☉] | 0.523 (0.008) | 0.532 (0.009) | 0.519 (0.009) | 0.506 | 0.441 | 0.39 (0.03) | 0.71 (0.04) | 0.549 (0.02) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||||||||
| Cooling age | [Gyr] | 0.7500 | 0.7113 | 0.7030 | |||||||||||||
| 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] | 14.54 (0.08) | 14.48 (0.1) | 14.48 (0.1) | 14.54 | 14.54 (0.08) | 14.48 (0.1) | ||||||||||
| Distance | [pc] | 68.77 (0.4) | 69.06 (0.5) | 69.08 (0.5) | 39.00 | 68.77 | 68.77 (0.4) | 69.08 (0.5) | |||||||||
| Composition | H | H | H | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | 133.3327596 (0.09) | 133.5810651 (0.2) | 133.333 (0.09) | 133.5810651 | ||||||||||||
| Proper motion (declination) | [mas/yr] | -82.97114717 (0.06) | -82.73289532 (0.2) | -82.971 (0.06) | -82.73289532 | ||||||||||||
| Variability | |||||||||||||||||
| Magnetic | |||||||||||||||||
| Bd | [MG] | ||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||
| Binarity | |||||||||||||||||
| B magnitude | 17.50 | ||||||||||||||||
| V magnitude | 15.90 | ||||||||||||||||
| R magnitude | 16.70 | ||||||||||||||||
| I magnitude | |||||||||||||||||
| J magnitude | 16.37 (0.01) | 16.37 (0.01) | |||||||||||||||
| H magnitude | 16.27 (0.02) | 16.27 (0.02) | |||||||||||||||
| K magnitude | 16.27 (0.03) | 16.27 (0.03) | |||||||||||||||
| u magnitude | 17.10 (0.008) | 17.11 (0.008) | 17.11 (0.008) | ||||||||||||||
| g magnitude | 16.68 (0.004) | 16.68 (0.004) | |||||||||||||||
| r magnitude | 16.69 (0.004) | 16.69 (0.004) | |||||||||||||||
| i magnitude | 16.75 (0.005) | 16.75 (0.005) | |||||||||||||||
| z magnitude | 16.88 (0.01) | 16.88 (0.01) | |||||||||||||||
| G magnitude | 16.63 (0.004) | 16.65 | 16.63 | 16.63 (0.003) | 16.65 | ||||||||||||
| BP magnitude | 16.73 (0.004) | 16.72 | 16.72 | ||||||||||||||
| RP magnitude | 16.47 (0.007) | 16.47 | 16.47 | ||||||||||||||
| Pan g magnitude | 16.71 (0.003) | 16.71 (0.003) | |||||||||||||||
| Pan r magnitude | 16.70 (0.002) | 16.70 (0.003) | |||||||||||||||
| Pan i magnitude | 16.77 (0.003) | 16.77 (0.004) | |||||||||||||||
| Pan z magnitude | 16.88 (0.005) | 16.88 (0.004) | |||||||||||||||
| Pan y magnitude | 16.98 (0.008) | 16.98 (0.009) | |||||||||||||||
| 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.