All names: Gaia DR2 6886766582082317440, LSIV-14116, Gaia EDR3 6886766582082317440, ALS 11634, uvby98 854140116, CSI-14-20549, GALEX J205738.7-142545, UCAC4 378-169675, TIC 442482669, Gaia DR3 6886766582082317440, LS IV -14 116, EC 20548-1437, UCAC2 26794502, V* V366 Aqr, 2MASS J20573887-1425437
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 20 57 38.88 (0.05) | 20 57 38.86 | 20 57 38.87 (0.05) | ||
| Declination | -14 25 46.04 (0.03) | -14 25 42.02 | -14 25 43.99 (0.03) | ||
| Spectral type | He-sdO | sdB0.5VIIHe18 | |||
| 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] | 2.34 (0.05) | 2.38 (0.08) | 2.34 (0.05) | |
| Distance | [pc] | 427.24 (1e+01) | 420.33 (15) | 427.24 (1e+01) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 7.409 (0.06) | 7.49 (0.1) | 7.409 (0.06) | |
| Proper motion (declination) | [mas/yr] | -128.265 (0.04) | -127.992 (0.08) | -128.265 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 12.73 | ||||
| V magnitude | 13.02 | ||||
| R magnitude | 13.28 (0.07) | ||||
| I magnitude | |||||
| J magnitude | 13.64 (0.03) | 13.64 (0.03) | |||
| H magnitude | 13.80 (0.03) | 13.80 (0.03) | |||
| K magnitude | 13.90 (0.05) | 13.90 (0.05) | |||
| u magnitude | 13.07 (0.003) | ||||
| g magnitude | 13.04 (0.003) | ||||
| r magnitude | 13.45 (0.004) | ||||
| i magnitude | 13.92 (0.004) | ||||
| z magnitude | 13.99 (0.005) | ||||
| G magnitude | 12.95 (0.003) | 12.98 (0.001) | 12.95 (0.003) | ||
| BP magnitude | 12.80 (0.003) | 12.75 (0.01) | |||
| RP magnitude | 13.25 (0.004) | 13.25 (0.001) | |||
| Pan g magnitude | 12.86 (0.001) | ||||
| Pan r magnitude | 13.78 (0.04) | ||||
| Pan i magnitude | 13.59 (0.006) | ||||
| Pan z magnitude | 13.86 (0.004) | ||||
| Pan y magnitude | 14.05 (0.003) | ||||
| E(B-V) | 0.029 | ||||
* 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.