All names: Gaia EDR3 588813460499195264, SDSS J093958.46+102136.0, WD 0937+105, Gaia DR3 588813460499195264, SDSS J093958.46+102136.1, SDSS J093958.45+102135.9, J0939+1021, WDJ093958.48+102135.86, Gaia DR2 588813460499195264, LAMOST J093958.46+102136.0
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Caron et al. 2023 | Gaia DR2 | Stilism | Guo et al. 2015 | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 39 58.38 (0.1) | 09 39 58.45 | 09 39 58.38 (0.2) | 09 39 58.38 | 09 39 58.48 (0.1) | 09 39 58.38 | 09 39 58.46 | 09 39 57.89 | 09 39 58.46 | |||||||
| Declination | 10 21 36.93 (0.09) | 10 21 35.94 | 10 21 36.90 (0.2) | 10 21 36.93 | 10 21 35.86 (0.09) | 10 21 36.90 | 10 21 36.06 | 10 21 34.56 | 10 21 36.05 | |||||||
| Spectral type | DA | DA? | DA | DA | DA | DA_auto | DA | DA | DA | |||||||
| Effective temperature | [K] | 8317.0 (46) | 8270.0 (40) | 8347.0 (122) | 8567.0 (26) | 8192.0 (31) | ||||||||||
| log(g) | [cgs] | 8.03 (0.02) | 8.30 (0.06) | 8.03 (0.03) | 8.49 (0.04) | 8.14 (0.05) | ||||||||||
| Mass | [M☉] | 0.612 (0.02) | 0.79 (0.04) | 0.616 (0.03) | 0.677 (0.03) | |||||||||||
| log(Luminosity) | [L☉] | |||||||||||||||
| Cooling age | [Gyr] | 1.0500 | 1.6596 | |||||||||||||
| 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] | 10.56 (0.1) | 10.55 (0.2) | 10.55 (0.2) | 10.56 | 10.56 (0.1) | 10.55 (0.2) | |||||||||
| Distance | [pc] | 94.67 (1) | 94.79 (2) | 94.79 (2) | 94.67 | 94.67 (1) | 94.79 (2) | |||||||||
| Composition | H | H | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -96.8842918 (0.1) | -97.45222074 (0.3) | -96.884 (0.1) | -97.45222074 | |||||||||||
| Proper motion (declination) | [mas/yr] | 66.7208457 (0.1) | 66.88717119 (0.3) | 66.721 (0.1) | 66.88717119 | |||||||||||
| Variability | ||||||||||||||||
| Magnetic | ||||||||||||||||
| Bd | [MG] | |||||||||||||||
| Infrared excess (disk) | ||||||||||||||||
| Binarity | ||||||||||||||||
| B magnitude | ||||||||||||||||
| V magnitude | ||||||||||||||||
| R magnitude | ||||||||||||||||
| I magnitude | ||||||||||||||||
| J magnitude | 17.37 (0.02) | 17.35 (0.02) | ||||||||||||||
| H magnitude | 17.23 (0.04) | 17.23 (0.04) | ||||||||||||||
| K magnitude | 17.19 (0.06) | 17.19 (0.06) | ||||||||||||||
| u magnitude | 18.25 (0.01) | 18.25 (0.01) | 18.25 (0.01) | 18.20 (0.01) | 18.21 (0.03) | 18.21 | 18.21 (0.03) | |||||||||
| g magnitude | 17.81 (0.006) | 17.81 (0.006) | 17.81 (0.005) | 17.83 (0.01) | 17.83 | 17.82 (0.01) | ||||||||||
| r magnitude | 17.78 (0.006) | 17.78 (0.006) | 17.78 (0.006) | 17.77 (0.02) | 17.77 | 17.77 (0.02) | ||||||||||
| i magnitude | 17.80 (0.007) | 17.80 (0.007) | 17.81 (0.008) | 17.82 (0.02) | 17.82 | 17.80 (0.02) | ||||||||||
| z magnitude | 17.91 (0.02) | 17.91 (0.02) | 17.92 (0.02) | 17.94 (0.04) | 17.94 | 17.92 (0.04) | ||||||||||
| G magnitude | 17.73 (0.01) | 17.75 | 17.73 | 17.73 (0.003) | 17.75 | |||||||||||
| BP magnitude | 17.84 (0.01) | 17.84 | 17.84 | |||||||||||||
| RP magnitude | 17.52 (0.009) | 17.53 | 17.53 | |||||||||||||
| Pan g magnitude | 17.82 (0.005) | 17.82 (0.005) | ||||||||||||||
| Pan r magnitude | 17.78 (0.004) | 17.78 (0.003) | ||||||||||||||
| Pan i magnitude | 17.85 (0.003) | 17.85 (0.003) | ||||||||||||||
| Pan z magnitude | 17.92 (0.003) | 17.92 (0.003) | ||||||||||||||
| Pan y magnitude | 18.01 (0.02) | 18.01 (0.02) | ||||||||||||||
| E(B-V) | 0.005 | |||||||||||||||
* 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.