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Table 1.
Description of the open cluster properties catalog.
| Column | Format | Unit | Description |
|---|---|---|---|
| CLUSTER | String | – | Cluster name |
| RA | Float | deg | Mean right ascension of members in CG18 (J2000) |
| DEC | Float | deg | Mean declination of members in CG18 (J2000) |
| PMRA | Float | mas yr−1 | Mean proper motion along RA of members in CG18 |
| PMRA_std | Float | mas yr−1 | Standard deviation of pmRA of members in CG18 |
| PMDE | Float | mas yr−1 | Mean proper motion along DE of members in CG18 |
| PMDE_std | Float | mas yr−1 | Standard deviation of pmDE of members in CG18 |
| DMODE | Float | pc | Most likely distance of clusters in CG18 |
| RV | Float | km s−1 | Mean radial velocity measured from member spectra in LAMOST |
| RV_std | Float | km s−1 | Standard deviation of RVs |
| RV_num | Integer | – | Number of stars used for RVs estimation |
| RV_flag | String | – | Flag of Gaussian fitting process for RVs estimation |
| FEH | Float | dex | Mean [Fe/H] measured from member spectra in LAMOST |
| FEH_std | Float | dex | Standard deviation of [Fe/H] |
| FEH_num | Integer | – | Number of stars used for [Fe/H] estimation |
| FEH_flag | String | – | Flag of Gaussian fitting process for [Fe/H] estimation |
| GX | Float | pc | Galactocentric coordinate points to the direction opposite to that of the Sun |
| GX_err | Float | pc | Mean errors of GX coordinate calculation |
| GY | Float | pc | Galactocentric coordinate points to the direction of Galactic rotation |
| GY_err | Float | pc | Mean errors of GY coordinate calculation |
| GZ | Float | pc | Galactocentric coordinate points toward the North Galactic Pole |
| GZ_err | Float | pc | Mean errors of GZ coordinate calculation |
| U | Float | km s−1 | Galactocentric space velocity in X axis |
| U_err | Float | km s−1 | Mean errors of U velocity calculation |
| V | Float | km s−1 | Galactocentric space velocity in Y axis |
| V_err | Float | km s−1 | Mean errors of V velocity calculation |
| W | Float | km s−1 | Galactocentric space velocity in Z axis |
| W_err | Float | km s−1 | Mean errors of W velocity calculation |
| Rap | Float | pc | Averaged apogalactic distances from the Galactic centre |
| Rperi | Float | pc | Averaged perigalactic distances from the Galactic centre |
| EC | Float | – | Eccentricity calculated as e = (Rap–Rperi)/(Rap + Rperi) |
| ZMAX | Float | pc | Averaged maximum vertical distances above the Galactic plane |
| Rgc | Float | pc | Galactocentric distance assuming the Sun is located at 8340 pc |
| Rgc_err | Float | pc | Mean errors of Galactocentric distance calculation |
| AGE_ref | Float | Gyr | Age from literature results determined by the isochrone fit |
| DIST_ref | Float | pc | Distance from literature results determined by the isochrone fit |
| EBV_ref | Float | – | Reddening from literature results determined by the isochrone fit |
| REF (1) | String | – | Label of referred literature for age, distance and EBV determination |
Notes. (1)Three labels are used to refer to different sources: (1) = Bossini et al. (2019); (2) = Kharchenko et al. (2013); (3) = Dias et al. (2002).
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