All names: WDJ114734.45-745759.23, WDJ114734.45-745759.24, Gaia DR2 5224999346778496128, Gaia EDR3 5224999346778496128, SSSPM J1148-7458, CNS5 2885, 2MASS J11473444-7457592, 114734.45-745759.24, TIC 454815857, Gaia DR3 5224999346778496128
| Parameter | Unit | Gaia EDR3 | O'Brien et al. 2024 | O'Brien et al. 2022 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 11 47 30.06 (0.05) | 11 47 30.20 | 11 47 30.06 | 11 47 34.45 (0.05) | 11 47 30.20 | ||||
| Declination | -74 57 37.57 (0.05) | -74 57 38.25 | -74 57 37.57 | -74 57 59.24 (0.05) | -74 57 38.25 | ||||
| Spectral type | DC | DC: | DC: | DC11+ | |||||
| Effective temperature | [K] | 3821.0 (81) | 3820.0 (80) | 3872.0 (40) | |||||
| log(g) | [cgs] | 7.74 (0.05) | 7.74 (0.05) | 7.76 (0.02) | |||||
| Mass | [M☉] | 0.443 (0.02) | 0.442 (0.01) | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 50.08 (0.06) | 50.08 (0.06) | 50.08 (0.06) | 50.10 (0.08) | 50.08 | 50.08 (0.06) | 50.10 (0.08) | |
| Distance | [pc] | 19.97 (0.02) | 19.97 (0.02) | 19.97 (0.02) | 19.96 (0.03) | 19.97 | 19.97 (0.02) | 19.96 (0.03) | |
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -1067.84144 (0.08) | -1067.754132 (0.1) | -1067.841 (0.08) | -1067.754132 | ||||
| Proper motion (declination) | [mas/yr] | 1354.602749 (0.07) | 1354.636152 (0.1) | 1354.603 (0.07) | 1354.636152 | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 15.58 (0.06) | ||||||||
| H magnitude | 15.57 (0.1) | ||||||||
| K magnitude | 15.22 (0.2) | ||||||||
| u magnitude | |||||||||
| g magnitude | |||||||||
| r magnitude | |||||||||
| i magnitude | |||||||||
| z magnitude | |||||||||
| G magnitude | 17.15 (0.01) | 17.18 | 17.15 | 17.15 (0.003) | 17.18 | ||||
| BP magnitude | 17.91 (0.01) | 17.94 | 17.94 | ||||||
| RP magnitude | 16.34 (0.004) | 16.35 | 16.35 | ||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.001 | ||||||||
* 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.