All names: WISEA J093540.68+022159.9, TIC 275182605, WISE J093540.68+022200.0, SDSS J093540.70+022159.6, 2MASS J09354067+0222005, Gaia EDR3 3847565573592529920, USNO-B1.0 0923-00231599, Gaia DR2 3847565573592529920, WD 0933+025, PG, UCAC4 462-044894, WDS J09357+0222AB, ** FAR 56, SDSS J093540.70+022159.5, PG 0933+026
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Koester et al. 2014 | Gianninas et al. 2011 | Zuckerman et al. 2003 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 35 40.70 (0.09) | 09 35 40.70 (0.1) | 09 35 40.71 (69) | 09 35 40.46 | |||||
| Declination | 02 21 58.35 (0.05) | 02 21 58.38 (0.07) | 02 21 59.72 (81) | 02 22 03.36 | |||||
| Spectral type | DA | DA2+dM | DA7 | ||||||
| Effective temperature | [K] | 20987.0 (285) | 20780.0 (383) | 22800.0 | |||||
| log(g) | [cgs] | 7.82 (0.09) | 7.84 (0.06) | 8.00 | |||||
| Mass | [M☉] | 0.532 (0.04) | 0.54 (0.03) | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | <-6.678 | ||||||||
| log(C/H) | |||||||||
| log(N/H) | |||||||||
| log(O/H) | |||||||||
| log(Na/H) | |||||||||
| log(Mg/H) | |||||||||
| log(Al/H) | |||||||||
| log(Si/H) | <-8.30 | ||||||||
| 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] | 7.47 (0.1) | 7.58 (0.1) | ||||||
| Distance | [pc] | 133.95 (2) | 131.98 (2) | 130.00 | |||||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -6.981261066 (0.1) | -6.733067491 (0.2) | -4.1 (3) | |||||
| Proper motion (declination) | [mas/yr] | -68.484231 (0.06) | -68.58082035 (0.1) | -68.7 (3) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | yes | |||||||
| B magnitude | 16.07 (0.01) | ||||||||
| V magnitude | 15.93 (0.03) | 15.92 (0.03) | |||||||
| R magnitude | 15.18 (0.2) | ||||||||
| I magnitude | |||||||||
| J magnitude | 13.31 | 13.27 (0.02) | |||||||
| H magnitude | 12.80 | 12.73 (0.02) | |||||||
| K magnitude | 12.51 | 12.48 (0.02) | |||||||
| u magnitude | 16.18 (0.006) | ||||||||
| g magnitude | 16.04 (0.004) | ||||||||
| r magnitude | 15.95 (0.003) | ||||||||
| i magnitude | 15.25 (0.004) | ||||||||
| z magnitude | 14.71 (0.005) | ||||||||
| G magnitude | 16.30 (0.01) | 16.34 | |||||||
| BP magnitude | 16.12 (0.01) | ||||||||
| RP magnitude | 15.09 (0.2) | ||||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.006 | ||||||||
* 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.