All names: Gaia DR2 799256069046789888, WISEA J093341.92+372701.2, WD 0930+376, SDSS J093341.95+372701.7, GALEX J093341.9+372701, Gaia EDR3 799256069046789888, SDSSJ093341.95+372701.7, USNO-B1.0 1274-00213722, Gaia DR3 799256069046789888, WISE J093341.93+372701.4, KUV 09306+3740, Case A-F 440, CSO 230
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Geier 2020 | Gaia DR2 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|
| Right ascension | 09 33 41.96 (0.06) | 09 33 41.96 | 09 33 41.95 | 09 33 41.96 (0.08) | 09 33 41.96 (0.06) | 09 33 41.64 | |
| Declination | 37 27 01.75 (0.05) | 37 27 01.79 | 37 27 01.80 | 37 27 01.75 (0.07) | 37 27 01.81 (0.05) | 37 27 03.24 | |
| Spectral type | sdB | sdB | DA | ||||
| Effective temperature | [K] | ||||||
| log(g) | [cgs] | ||||||
| Mass | [M☉] | ||||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | ||||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | -0.12 (0.08) | -0.15 (0.1) | -0.15 (0.1) | |||
| Distance | [pc] | ||||||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | -0.444104736 (0.06) | -0.516 (0.2) | -0.515860285 (0.2) | -0.444 (0.06) | ||
| Proper motion (declination) | [mas/yr] | -3.960744817 (0.05) | -3.914 (0.1) | -3.913774663 (0.1) | -3.961 (0.05) | ||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | 16.60 | ||||||
| V magnitude | |||||||
| R magnitude | 16.90 | ||||||
| I magnitude | |||||||
| J magnitude | |||||||
| H magnitude | |||||||
| K magnitude | |||||||
| u magnitude | 17.72 (0.01) | 17.73 (0.01) | 17.73 (0.01) | ||||
| g magnitude | 16.99 (0.004) | 16.98 (0.004) | 16.98 (0.004) | ||||
| r magnitude | 17.27 (0.005) | 17.27 (0.005) | 17.27 (0.005) | ||||
| i magnitude | 17.51 (0.007) | 17.50 (0.007) | 17.50 (0.007) | ||||
| z magnitude | 17.59 (0.01) | 17.59 (0.01) | 17.59 (0.01) | ||||
| G magnitude | 17.14 (0.005) | 17.16 (0.001) | 17.16 | 17.14 (0.003) | |||
| BP magnitude | 17.13 (0.005) | 17.11 (0.007) | 17.11 | ||||
| RP magnitude | 17.17 (0.007) | 17.18 (0.007) | 17.18 | ||||
| Pan g magnitude | 17.04 (0.005) | ||||||
| Pan r magnitude | 17.30 (0.002) | ||||||
| Pan i magnitude | 17.52 (0.003) | ||||||
| Pan z magnitude | 17.66 (0.005) | ||||||
| Pan y magnitude | 17.70 (0.01) | ||||||
| E(B-V) | |||||||
* 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.