All names: Gaia DR2 1838855376946302720, TIC 266023510, NLTT 50224, ASCC 816172, [RHG95] 3273, CNS5 5181, Gaia DR3 1838855376946302720, Wolf 1373, Ci 20 1248, LTT 16131, CSI+22-20551, WD 2055+221, LSPM J2057+2221, TYC 1660-152-1, LHS 3605, StKM 2-1485, HIP 103441, USNO-B1.0 1123-00601401, GJ 813, WISEA J205725.93+222143.5, Gaia EDR3 1838855376946302720, PLX 5024.00, HIC 103441, UCAC4 562-125381, PLX 5024, UCAC2 39759312, PM J20574+2221, G 187-9, LFT 1588, 2MASS J20572537+2221457, PM 20552+2210
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|
| Right ascension | 20 57 26.24 (0.02) | 20 57 26.22 (0.05) | 20 57 25.36 (0.02) | 20 57 23.11 | |||
| Declination | 22 21 42.40 (0.01) | 22 21 42.50 (0.06) | 22 21 45.81 (0.01) | 22 21 48.96 | |||
| Spectral type | M3V | DC | |||||
| 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] | 69.30 (0.02) | 69.31 (0.07) | 69.30 (0.02) | |||
| Distance | [pc] | 14.43 (0.005) | 14.43 (0.01) | 14.43 (0.005) | |||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | 769.6436385 (0.02) | 769.821 (0.1) | 769.644 (0.02) | |||
| Proper motion (declination) | [mas/yr] | -213.506571 (0.02) | -213.274 (0.09) | -213.507 (0.02) | |||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | 13.63 | ||||||
| V magnitude | 12.01 | ||||||
| R magnitude | 10.96 | ||||||
| I magnitude | 9.70 | ||||||
| J magnitude | 8.41 (0.03) | ||||||
| H magnitude | 7.87 (0.05) | ||||||
| K magnitude | 7.64 (0.02) | ||||||
| u magnitude | |||||||
| g magnitude | |||||||
| r magnitude | |||||||
| i magnitude | |||||||
| z magnitude | |||||||
| G magnitude | 11.01 (0.0008) | 11.00 | 11.01 (0.003) | ||||
| BP magnitude | 12.26 (0.0008) | 12.28 | |||||
| RP magnitude | 9.90 (0.0003) | 9.92 | |||||
| Pan g magnitude | 13.05 (0.03) | ||||||
| Pan r magnitude | 12.21 (0.2) | ||||||
| Pan i magnitude | 9.97 (0.008) | ||||||
| Pan z magnitude | 11.78 (0.01) | ||||||
| Pan y magnitude | 12.24 (0.001) | ||||||
| E(B-V) | 0.000 | ||||||
* 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.