All names: WDJ025936.00+172532.56, NLTT 9537, WD 0256+172, GSC2U J025936.9+172533, Gaia DR3 35497904701569920, LP 411-34, J0259+1725, Gaia EDR3 35497904701569920, USNO-B1.0 1074-00040657, LSPM J0259+1725, Gaia DR2 35497904701569920
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Caron et al. 2023 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 59 36.32 (0.2) | 02 59 36.31 (0.3) | 02 59 36.32 | 02 59 36.00 (0.2) | 02 59 36.31 | 02 59 35.38 | ||||
| Declination | 17 25 31.02 (0.2) | 17 25 31.07 (0.2) | 17 25 31.02 | 17 25 32.58 (0.2) | 17 25 31.07 | 17 25 30.36 | ||||
| Spectral type | DA | DC: | DA | DA | ||||||
| Effective temperature | [K] | 5108.0 (30) | 5266.0 (109) | |||||||
| log(g) | [cgs] | 7.76 (0.03) | 7.78 (0.06) | |||||||
| Mass | [M☉] | 0.446 (0.02) | 0.459 (0.04) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 2.8500 | ||||||||
| 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] | 13.82 (0.2) | 14.33 (0.3) | 14.33 (0.3) | 13.82 | 13.82 (0.2) | 14.33 (0.3) | |||
| Distance | [pc] | 72.34 (1) | 69.78 (2) | 69.77 (2) | 72.34 | 72.34 (1) | 69.77 (2) | |||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | 283.8494596 (0.3) | 284.3666317 (0.7) | 283.849 (0.3) | 284.3666317 | |||||
| Proper motion (declination) | [mas/yr] | -97.73890492 (0.2) | -96.47627139 (0.5) | -97.739 (0.2) | -96.47627139 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 19.40 | |||||||||
| V magnitude | ||||||||||
| R magnitude | 18.70 | |||||||||
| I magnitude | ||||||||||
| J magnitude | 17.43 (0.04) | |||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 18.67 (0.04) | 18.70 | 18.67 | 18.67 (0.004) | 18.70 | |||||
| BP magnitude | 19.09 (0.04) | 19.03 | 19.03 | |||||||
| RP magnitude | 18.06 (0.03) | 18.04 | 18.04 | |||||||
| Pan g magnitude | 19.21 (0.01) | 19.21 (0.01) | ||||||||
| Pan r magnitude | 18.64 (0.005) | 18.64 (0.005) | ||||||||
| Pan i magnitude | 18.40 (0.005) | 18.40 (0.004) | ||||||||
| Pan z magnitude | 18.32 (0.005) | 18.32 (0.006) | ||||||||
| Pan y magnitude | 18.26 (0.009) | 18.26 (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.