All names: Wolf 1373, CSI+22-20551, StKM 2-1485, PLX 5024, HIP 103441, GJ 813, CNS5 5181, UCAC2 39759312, LSPM J2057+2221, Ci 20 1248, NLTT 50224, LHS 3605, HIC 103441, Gaia DR3 1838855376946302720, PM 20552+2210, G 187-9, TIC 266023510, USNO-B1.0 1123-00601401, PM J20574+2221, TYC 1660-152-1, Gaia DR2 1838855376946302720, WISEA J205725.93+222143.5, LTT 16131, WD 2055+221, PLX 5024.00, ASCC 816172, [RHG95] 3273, 2MASS J20572537+2221457, LFT 1588, UCAC4 562-125381, Gaia EDR3 1838855376946302720
| 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.