All names: Gaia DR3 2841680934336158976, Gaia EDR3 2841680934336158976, SDSS J232755.35+263822.6, GALEX J232755.3+263824, LSPM J2327+2638S, NLTT 56950, WDS J23279+2638A, USNO-B1.0 1166-00598528, ** LDS 5094A, LP 402-29, WD 2325+263.1, SDSS J232755.35+263822.7, WDJ232755.40+263824.46, J2327+2638, Gaia DR2 2841680934336158976
| 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 | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 27 55.32 (0.06) | 23 27 55.32 (0.09) | 23 27 55.32 | 23 27 55.40 (0.06) | 23 27 55.32 | 23 27 58.94 | |||||||||
| Declination | 26 38 21.62 (0.05) | 26 38 21.71 (0.06) | 26 38 21.62 | 26 38 24.46 (0.05) | 26 38 21.71 | 26 38 31.56 | |||||||||
| Spectral type | DA | DA | DA | DA | DA | DA7.3 | DA | ||||||||
| Effective temperature | [K] | 6645.0 (43) | 6631.0 (37) | 6646.0 (42) | 6639.0 | 6383.0 | 6860.0 (134) | 6670.0 (60) | |||||||
| log(g) | [cgs] | 8.43 (0.01) | 8.43 (0.01) | 8.43 (0.01) | 8.43 | 8.32 | 8.56 (0.2) | 8.44 (0.01) | |||||||
| Mass | [M☉] | 0.867 (0.009) | 0.867 (0.01) | 0.869 (0.01) | 0.868 | 0.777 | 0.96 (0.1) | 0.872 (0.01) | |||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 4.2800 | 3.9830 | 3.9170 | |||||||||||
| 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] | 21.66 (0.09) | 21.70 (0.1) | 21.70 (0.1) | 21.66 | 21.66 (0.09) | 21.70 (0.1) | ||||||||
| Distance | [pc] | 46.18 (0.2) | 46.08 (0.3) | 46.09 (0.3) | 29.00 | 46.18 | 46.18 (0.2) | 46.09 (0.3) | |||||||
| Composition | H | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -72.16178811 (0.09) | -72.14409545 (0.2) | -72.162 (0.09) | -72.14409545 | ||||||||||
| Proper motion (declination) | [mas/yr] | -177.7782469 (0.07) | -177.5180854 (0.1) | -177.778 (0.07) | -177.5180854 | ||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | yes | ||||||||||||||
| B magnitude | 16.90 | ||||||||||||||
| V magnitude | 16.00 | ||||||||||||||
| R magnitude | 16.10 | ||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 16.84 (0.02) | ||||||||||||||
| H magnitude | |||||||||||||||
| K magnitude | |||||||||||||||
| u magnitude | 18.49 (0.02) | 18.49 (0.02) | 18.49 (0.02) | ||||||||||||
| g magnitude | 17.84 (0.006) | 17.84 (0.006) | |||||||||||||
| r magnitude | 17.59 (0.006) | 17.59 (0.006) | |||||||||||||
| i magnitude | 17.56 (0.007) | 17.56 (0.007) | |||||||||||||
| z magnitude | 17.59 (0.02) | 17.59 (0.02) | |||||||||||||
| G magnitude | 17.58 (0.009) | 17.60 | 17.58 | 17.58 (0.003) | 17.60 | ||||||||||
| BP magnitude | 17.81 (0.009) | 17.81 | 17.81 | ||||||||||||
| RP magnitude | 17.21 (0.005) | 17.21 | 17.21 | ||||||||||||
| Pan g magnitude | 17.82 (0.009) | 17.82 (0.007) | |||||||||||||
| Pan r magnitude | 17.60 (0.008) | 17.60 (0.007) | |||||||||||||
| Pan i magnitude | 17.54 (0.005) | 17.54 (0.004) | |||||||||||||
| Pan z magnitude | 17.56 (0.008) | 17.56 (0.007) | |||||||||||||
| Pan y magnitude | 17.60 (0.009) | 17.60 (0.008) | |||||||||||||
| 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.