All names: USNO-B1.0 1460-00328007, WDJ202744.09+560256.75, TIC 469378611, 2MASS J20274409+5602568, Gaia EDR3 2186925397832320512, Gaia DR2 2186925397832320512, LSPM J2027+5602, Gaia DR3 2186925397832320512
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 20 27 44.26 (0.1) | 20 27 44.26 | 20 27 44.09 (0.1) | |||
| Declination | 56 02 59.83 (0.1) | 56 02 59.73 | 56 02 56.75 (0.1) | |||
| Spectral type | CND | |||||
| 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] | 10.58 (0.2) | 10.57 (0.2) | 10.58 (0.2) | ||
| Distance | [pc] | 94.51 (1) | 94.65 (2) | 94.51 (1) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | 92.58824853 (0.2) | 92.60726796 (0.4) | 92.588 (0.2) | ||
| Proper motion (declination) | [mas/yr] | 192.2822445 (0.2) | 192.1651223 (0.4) | 192.282 (0.2) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | 20.30 | |||||
| V magnitude | ||||||
| R magnitude | 19.60 | |||||
| I magnitude | ||||||
| J magnitude | 15.64 (0.07) | |||||
| H magnitude | 15.08 (0.09) | |||||
| K magnitude | 14.75 (0.09) | |||||
| u magnitude | ||||||
| g magnitude | ||||||
| r magnitude | ||||||
| i magnitude | ||||||
| z magnitude | ||||||
| G magnitude | 18.71 (0.03) | 18.74 | 18.71 (0.003) | |||
| BP magnitude | 19.46 (0.03) | 19.40 | ||||
| RP magnitude | 17.78 (0.02) | 17.79 | ||||
| Pan g magnitude | 19.46 (0.007) | |||||
| Pan r magnitude | 19.01 (0.004) | |||||
| Pan i magnitude | 18.44 (0.006) | |||||
| Pan z magnitude | 17.72 (0.004) | |||||
| Pan y magnitude | 17.17 (0.004) | |||||
| E(B-V) | 0.007 | |||||
* 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.