All names: LAMOST J094431.22+430123.9, PG 0941+433, SDSS J094431.22+430123.9, GALEX J094431.2+430124, SA 29-906, SDSS J094431.26+430124.5, FBS 0941+432, WD 0941+432, Gaia DR2 819948603003731072, Gaia EDR3 819948603003731072, Gaia DR3 819948603003731072, SDSS J094431.24+430124.5, SDSS J094431.23+430123.9, US 906, SDSS J094431.25+430124.5, FBS B 266
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Guo et al. 2015 | Gianninas et al. 2011 | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 44 31.21 (0.05) | 09 44 31.25 | 09 44 31.21 (0.07) | 09 44 31.21 | 09 44 31.26 (0.05) | 09 44 31.26 | 09 44 30.98 | 09 44 31.26 | |||||||
| Declination | 43 01 23.49 (0.04) | 43 01 24.58 | 43 01 23.53 (0.06) | 43 01 23.49 | 43 01 24.76 (0.04) | 43 01 24.54 | 43 01 23.88 | 43 01 24.53 | |||||||
| Spectral type | DA | DA | DA | DA | DA1.9 | DA_auto | DA4 | DA | DA | ||||||
| Effective temperature | [K] | 27094.0 (481) | 26660.0 (419) | 27160.0 (150) | 26699.0 (606) | 26923.0 (144) | 27010.0 (145) | ||||||||
| log(g) | [cgs] | 7.85 (0.08) | 7.95 (0.05) | 7.88 (0.03) | 7.93 (0.03) | 7.90 (0.02) | 7.89 (0.02) | ||||||||
| Mass | [M☉] | 0.56 (0.04) | 0.61 (0.03) | 0.58 (0.01) | 0.6 (0.02) | 0.585 (0.009) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 0.0132 | |||||||||||||
| 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] | 5.02 (0.06) | 4.97 (0.1) | 5.02 | 5.02 (0.07) | ||||||||||
| Distance | [pc] | 199.33 (3) | 201.23 (4) | 175.00 | 199.33 | 199.33 (3) | |||||||||
| Composition | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -37.55341102 (0.06) | -37.583844 (0.1) | -37.553 (0.06) | -33.5 | ||||||||||
| Proper motion (declination) | [mas/yr] | -79.09079776 (0.05) | -79.0838332 (0.1) | -79.091 (0.05) | -84.2 | ||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | 16.52 | ||||||||||||||
| V magnitude | 16.32 | ||||||||||||||
| R magnitude | |||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | |||||||||||||||
| H magnitude | |||||||||||||||
| K magnitude | |||||||||||||||
| u magnitude | 16.24 (0.006) | 16.23 (0.006) | 16.24 (0.03) | 16.23 | 16.24 (0.03) | ||||||||||
| g magnitude | 16.35 (0.003) | 16.35 (0.003) | 16.38 (0.02) | 16.37 | 16.36 (0.02) | ||||||||||
| r magnitude | 16.81 (0.004) | 16.81 (0.004) | 16.82 (0.02) | 16.81 | 16.82 (0.02) | ||||||||||
| i magnitude | 17.16 (0.005) | 17.16 (0.005) | 17.18 (0.02) | 17.17 | 17.17 (0.02) | ||||||||||
| z magnitude | 17.48 (0.02) | 17.48 (0.02) | 17.48 (0.02) | 17.48 | 17.49 (0.02) | ||||||||||
| G magnitude | 16.61 (0.003) | 16.63 | 16.61 | 16.61 (0.003) | |||||||||||
| BP magnitude | 16.50 (0.003) | 16.46 | |||||||||||||
| RP magnitude | 16.88 (0.007) | 16.87 | |||||||||||||
| Pan g magnitude | 16.43 (0.006) | ||||||||||||||
| Pan r magnitude | 16.82 (0.002) | ||||||||||||||
| Pan i magnitude | 17.19 (0.005) | ||||||||||||||
| Pan z magnitude | 17.44 (0.01) | ||||||||||||||
| Pan y magnitude | 17.62 (0.02) | ||||||||||||||
| E(B-V) | 0.010 | ||||||||||||||
* 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.