All names: 2QZ J114751.6+001700, SDSS J114751.73+001701.2, Gaia DR2 3795994178987566336, SDSS J114751.73+001701.20, Gaia EDR3 3795994178987566336, GALEX J114751.7+001701, WD 1145+005, SDSS J114751.72+001701.2, SDSS J114751.73+001701.3, MGC 24688, Gaia DR3 3795994178987566336
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Genest-Beaulieu & Bergeron 2019 (spectroscopic) | Gaia DR2 | Stilism | Harris et al. 2003 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 11 47 51.72 (0.4) | 11 47 51.73 | 11 47 51.72 (0.6) | 11 47 51.73 (0.4) | 11 47 51.73 | 11 47 50.78 | 11 47 51.73 | ||||||
| Declination | 00 17 01.18 (0.3) | 00 17 01.27 | 00 17 01.18 (0.4) | 00 17 01.27 (0.3) | 00 17 01.25 | 00 16 55.56 | 00 17 01.18 | ||||||
| Spectral type | DB4 | DB4 | DB | DB2.2 | DB | DB | |||||||
| Effective temperature | [K] | 25892.0 | 23420.0 (1524) | 22909.0 (1406) | |||||||||
| log(g) | [cgs] | 7.53 | 7.81 (0.2) | 7.82 (0.2) | |||||||||
| Mass | [M☉] | 0.395 | 0.511 (0.09) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | ||||||||||||
| log(H/He) | <-3.956 | ||||||||||||
| log(C/He) | |||||||||||||
| log(Ca/He) | |||||||||||||
| log(Ca/H) | |||||||||||||
| Parallax | [mas] | 1.05 (0.5) | 0.31 (0.9) | 1.05 (0.5) | |||||||||
| Distance | [pc] | 950.94 (446) | 3227.77 (9483) | 950.93 (446) | |||||||||
| Composition | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -6.681662108 (0.6) | -6.725612215 (1) | -6.682 (0.6) | |||||||||
| Proper motion (declination) | [mas/yr] | -5.912772848 (0.3) | -5.129583761 (0.7) | -5.913 (0.3) | |||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 19.89 | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 19.68 (0.03) | 19.70 | 19.69 (0.03) | 19.70 (0.03) | 19.70 | 19.69 (0.03) | |||||||
| g magnitude | 19.78 (0.01) | 19.81 | 19.78 (0.01) | 19.81 (0.02) | 19.81 | 19.81 (0.02) | |||||||
| r magnitude | 20.09 (0.02) | 20.12 | 20.09 (0.02) | 20.12 (0.03) | 20.12 | 20.12 (0.02) | |||||||
| i magnitude | 20.28 (0.03) | 20.32 | 20.28 (0.03) | 20.32 (0.03) | 20.32 | 20.33 (0.03) | |||||||
| z magnitude | 20.39 (0.1) | 20.42 | 20.39 (0.2) | 20.43 (0.1) | 20.42 | 20.44 (0.1) | |||||||
| G magnitude | 19.94 (0.04) | 20.00 | 19.94 (0.005) | ||||||||||
| BP magnitude | 19.91 (0.04) | 19.77 | |||||||||||
| RP magnitude | 20.09 (0.1) | 20.02 | |||||||||||
| Pan g magnitude | 19.83 (0.01) | ||||||||||||
| Pan r magnitude | 20.13 (0.03) | ||||||||||||
| Pan i magnitude | 20.43 (0.03) | ||||||||||||
| Pan z magnitude | 20.59 (0.03) | ||||||||||||
| Pan y magnitude | 20.26 (0.05) | ||||||||||||
| E(B-V) | 0.022 | ||||||||||||
* 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.