All names: Gaia EDR3 1867119388493088384, 2MASS J21061562+3419146, UCAC4 622-111360, UCAC2 43870275, LAMOST J210615.61+341914.6, KPD2104+3407, TIC 163485661, KPD 2104+3407, Gaia DR3 1867119354139385984, PSO J316.5650+34.3207, Gaia DR2 1867119354139385984
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 21 06 10.02 (0.4) | 21 06 15.67 | 21 06 15.63 (0.02) | ||
| Declination | 34 19 05.96 (0.5) | 34 19 14.72 | 34 19 14.63 (0.03) | ||
| Spectral type | sdO | sdOBHe | |||
| 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] | 1.05 (0.6) | 0.49 (0.05) | 0.42 (0.03) | |
| Distance | [pc] | 954.56 (537) | 2039.15 (193) | 2357.38 (191) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -3.782 (0.5) | -7.829 (0.06) | -7.654 (0.03) | |
| Proper motion (declination) | [mas/yr] | -3.936 (0.5) | -2.163 (0.07) | -2.002 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.81 | ||||
| V magnitude | 15.95 | ||||
| R magnitude | 16.05 (0.3) | ||||
| I magnitude | |||||
| J magnitude | 16.36 (0.09) | 16.36 (0.09) | |||
| H magnitude | 16.40 (0.2) | 16.40 (0.2) | |||
| K magnitude | 15.98 | ||||
| u magnitude | |||||
| g magnitude | 15.78 (0.003) | ||||
| r magnitude | 16.10 (0.002) | ||||
| i magnitude | 16.40 (0.005) | ||||
| z magnitude | 16.63 (0.002) | ||||
| G magnitude | 20.42 (0.006) | 15.91 (0.001) | 15.89 (0.003) | ||
| BP magnitude | 20.86 (0.2) | 15.73 (0.009) | |||
| RP magnitude | 20.06 (0.1) | 16.04 (0.006) | |||
| Pan g magnitude | 15.78 (0.003) | ||||
| Pan r magnitude | 16.10 (0.002) | ||||
| Pan i magnitude | 16.39 (0.005) | ||||
| Pan z magnitude | 16.63 (0.002) | ||||
| Pan y magnitude | 16.79 (0.003) | ||||
| E(B-V) | 0.173 | ||||
* 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.