All names: 2QZ J144552.5+004015, SDSS J144552.51+004014.4, Gaia DR3 3652139094131361536, WD 1443+008, SDSS J144552.50+004014.3, SDSS J144552.51+004014.3, Gaia DR2 3652139094131361536, Gaia EDR3 3652139094131361536
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Stilism | Harris et al. 2003 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Kleinman et al. 2004 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 45 52.52 (0.5) | 14 45 52.51 | 14 45 52.52 (0.8) | 14 45 52.51 (0.5) | 14 45 52.51 | 14 45 52.18 | 14 45 52.51 | 14 45 52.51 | ||||
| Declination | 00 40 14.29 (0.6) | 00 40 14.38 | 00 40 14.29 (1) | 00 40 14.43 (0.6) | 00 40 14.38 | 00 40 07.32 | 00 40 14.38 | 00 40 14.30 | ||||
| Spectral type | DA1.5: | DA1.5 | DA | DA1.7 | DA | DA | ||||||
| Effective temperature | [K] | 29595.0 (799) | 29251.0 (373) | 29787.0 (810) | ||||||||
| log(g) | [cgs] | 8.12 (0.2) | 7.75 (0.08) | 8.16 (0.2) | ||||||||
| Mass | [M☉] | 0.53 (0.04) | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | |||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 0.98 (0.8) | 0.98 (0.8) | |||||||||
| Distance | [pc] | 1023.88 (794) | 1023.86 (794) | |||||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 5.770025695 (0.8) | 5.77 (0.8) | |||||||||
| Proper motion (declination) | [mas/yr] | -8.915077315 (0.8) | -8.915 (0.8) | |||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 19.78 (0.03) | 19.79 | 19.78 (0.03) | 19.79 (0.03) | 19.79 | 19.80 (0.03) | 19.79 (0.04) | |||||
| g magnitude | 19.97 (0.02) | 19.98 | 19.98 (0.01) | 19.98 (0.02) | 19.98 | 19.98 (0.02) | 19.98 (0.02) | |||||
| r magnitude | 20.35 (0.03) | 20.35 | 20.35 (0.03) | 20.35 (0.03) | 20.35 | 20.35 (0.03) | 20.35 (0.03) | |||||
| i magnitude | 20.68 (0.05) | 20.67 | 20.68 (0.05) | 20.67 (0.05) | 20.67 | 20.68 (0.05) | 20.67 (0.05) | |||||
| z magnitude | 21.35 (0.3) | 21.42 | 21.38 (0.3) | 21.42 (0.3) | 21.43 | 21.43 (0.3) | 21.43 (0.3) | |||||
| G magnitude | 20.18 (0.2) | 20.25 | 20.18 (0.007) | |||||||||
| BP magnitude | 20.15 (0.2) | 20.09 | ||||||||||
| RP magnitude | 20.27 (0.1) | 19.95 | ||||||||||
| Pan g magnitude | ||||||||||||
| Pan r magnitude | ||||||||||||
| Pan i magnitude | ||||||||||||
| Pan z magnitude | ||||||||||||
| Pan y magnitude | ||||||||||||
| E(B-V) | 0.040 | |||||||||||
* 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.