All names: EQ J1956.9+4350, LAMOST J195655.56+435016.5, KIC 8054179, 2MASS J19565555+4350171, TIC 268605693, Gaia EDR3 2079009641541181312, Gaia DR2 2079009641541181312, Gaia DR3 2079009641541181312, KIC8054179
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 19 56 55.58 (0.02) | 19 56 55.57 | 19 56 55.57 (0.02) | ||
| Declination | 43 50 16.99 (0.02) | 43 50 16.59 | 43 50 17.15 (0.02) | ||
| Spectral type | He-sdOB | sdOBHe | |||
| Effective temperature | [K] | 39060.0 (180) | |||
| log(g) | [cgs] | 5.72 (0.04) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.47 (0.02) | 1.42 (0.04) | 1.47 (0.02) | |
| Distance | [pc] | 680.87 (10) | 704.92 (18) | 680.87 (10) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 4.479 (0.02) | 4.459 (0.06) | 4.479 (0.02) | |
| Proper motion (declination) | [mas/yr] | -9.761 (0.03) | -9.841 (0.07) | -9.761 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 14.80 (0.07) | 14.80 (0.07) | |||
| H magnitude | 14.86 (0.07) | 14.86 (0.07) | |||
| K magnitude | 15.16 (0.1) | 15.16 (0.1) | |||
| u magnitude | |||||
| g magnitude | 14.13 | ||||
| r magnitude | |||||
| i magnitude | 14.83 | ||||
| z magnitude | |||||
| G magnitude | 14.32 (0.003) | 14.34 (0.0009) | 14.32 (0.003) | ||
| BP magnitude | 14.22 (0.004) | 14.18 (0.006) | |||
| RP magnitude | 14.50 (0.004) | 14.51 (0.002) | |||
| Pan g magnitude | 14.22 (0.002) | ||||
| Pan r magnitude | 14.54 (0.007) | ||||
| Pan i magnitude | 14.87 (0.003) | ||||
| Pan z magnitude | 15.09 (0.005) | ||||
| Pan y magnitude | 15.25 (0.003) | ||||
| E(B-V) | 0.087 | ||||
* 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.