All names: SDSS J095646.99+335033.0, SDSS J095646.97+335033.4, Gaia EDR3 795004631242760960, SDSS J095646.98+335033.0, Gaia DR3 795004631242760960, GALEX J095647.0+335033, KUV 09538+3405, CSO 240, Gaia DR2 795004631242760960, WD 0953+340
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 56 46.99 (0.1) | 09 56 46.97 | 09 56 46.99 (0.2) | 09 56 46.99 | 09 56 46.96 (0.1) | 09 56 47.04 | |||||
| Declination | 33 50 32.81 (0.09) | 33 50 33.45 | 33 50 32.83 (0.1) | 33 50 32.81 | 33 50 33.55 (0.09) | 33 50 36.60 | |||||
| Spectral type | DA | DA | DA2.9 | DA | DA | ||||||
| Effective temperature | [K] | 17570.0 (318) | 16811.0 (598) | ||||||||
| log(g) | [cgs] | 7.99 (0.06) | 7.98 (0.04) | ||||||||
| Mass | [M☉] | 0.61 (0.03) | 0.605 (0.04) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| 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] | 4.46 (0.1) | 4.30 (0.2) | 4.46 | 4.46 (0.1) | ||||||
| Distance | [pc] | 224.10 (7) | 232.53 (11) | 143.00 | 224.10 | 224.10 (7) | |||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 20.76557202 (0.2) | 20.714199 (0.4) | 20.766 (0.2) | |||||||
| Proper motion (declination) | [mas/yr] | -45.98492774 (0.1) | -46.08163089 (0.3) | -45.985 (0.1) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 17.00 | ||||||||||
| V magnitude | 16.76 | ||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 17.86 (0.01) | 17.86 (0.01) | |||||||||
| g magnitude | 17.68 (0.005) | 17.68 (0.005) | |||||||||
| r magnitude | 17.99 (0.007) | 17.99 (0.007) | |||||||||
| i magnitude | 18.29 (0.009) | 18.29 (0.009) | |||||||||
| z magnitude | 18.62 (0.03) | 18.62 (0.03) | |||||||||
| G magnitude | 17.86 (0.01) | 17.88 | 17.86 | 17.86 (0.003) | |||||||
| BP magnitude | 17.81 (0.01) | 17.78 | |||||||||
| RP magnitude | 17.98 (0.02) | 17.94 | |||||||||
| Pan g magnitude | 17.73 (0.006) | ||||||||||
| Pan r magnitude | 18.01 (0.004) | ||||||||||
| Pan i magnitude | 18.31 (0.005) | ||||||||||
| Pan z magnitude | 18.55 (0.009) | ||||||||||
| Pan y magnitude | 18.64 (0.02) | ||||||||||
| E(B-V) | 0.013 | ||||||||||
* 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.