All names: Gaia DR2 140270608230727680, SDSS J025206.82+350322.7, SDSS J025206.82+350322.6, Gaia DR3 140270608230727680, GALEX J025206.8+350322, Gaia EDR3 140270608230727680
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Bedard et al. 2020 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 52 06.83 (0.3) | 02 52 06.83 (0.3) | 02 52 06.81 (0.3) | 02 52 06.82 | |||||
| Declination | 35 03 22.62 (0.2) | 35 03 22.62 (0.3) | 35 03 22.72 (0.2) | 35 03 22.71 | |||||
| Spectral type | DA | DA | DA | DA | |||||
| Effective temperature | [K] | 33165.0 (471) | 32984.0 (324) | ||||||
| log(g) | [cgs] | 7.26 (0.09) | 7.31 (0.07) | ||||||
| Mass | [M☉] | 0.36 (0.03) | 0.446 (0.02) | ||||||
| log(Luminosity) | [L☉] | -0.22 (0.07) | |||||||
| Cooling age | [Gyr] | 0.0004 (0.0003) | |||||||
| 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] | 2.05 (0.4) | 1.99 (0.5) | 2.05 (0.4) | |||||
| Distance | [pc] | 487.58 (87) | 502.94 (117) | 487.57 (87) | |||||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | 14.83070652 (0.4) | 14.868 (0.7) | 14.831 (0.4) | |||||
| Proper motion (declination) | [mas/yr] | -6.098960849 (0.3) | -5.532 (0.7) | -6.099 (0.3) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 18.93 (0.03) | 18.93 (0.03) | |||||||
| g magnitude | 19.07 (0.01) | 19.07 (0.01) | |||||||
| r magnitude | 19.40 (0.02) | 19.40 (0.02) | |||||||
| i magnitude | 19.67 (0.02) | 19.67 (0.02) | |||||||
| z magnitude | 19.85 (0.09) | 19.85 (0.09) | |||||||
| G magnitude | 19.22 (0.03) | 19.26 | 19.22 (0.004) | ||||||
| BP magnitude | 19.23 (0.03) | 19.05 | |||||||
| RP magnitude | 19.34 (0.06) | 19.29 | |||||||
| Pan g magnitude | 19.09 (0.008) | ||||||||
| Pan r magnitude | 19.43 (0.009) | ||||||||
| Pan i magnitude | 19.68 (0.009) | ||||||||
| Pan z magnitude | 19.85 (0.05) | ||||||||
| Pan y magnitude | 19.93 (0.01) | ||||||||
| E(B-V) | 0.074 | ||||||||
* 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.