Czernik 18
(MWSC 381; OCL 426)
0.88
UTI
0.66
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
Radius (P>50% members)
4.3 [arcmin]
- CN 0.66 Moderately populated
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 1.0 Very well-studied
- Cdup 1.0 Unique
Overview
Czernik 18 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is very well-studied in the literature.
Relatively close
Moderate extinction
Near-solar metallicity
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | β | 66.963 | 30.93 | 0.748 | 1.722 | -3.079 | -13.183 |
| Zhang et al. | 2024 | 66.956 | 30.934 | β | β | β | β |
| Hunt & Reffert | 2024 | 66.956 | 30.934 | 0.75 | 1.706 | -3.072 | -9.617 |
| Cavallo et al. | 2024 | 66.96 | 30.918 | 0.753 | β | β | β |
| Hunt & Reffert | 2023 | 66.956 | 30.934 | 0.75 | 1.706 | -3.072 | -9.617 |
| Just et al. | 2023 | 66.948 | 30.945 | β | β | β | β |
| Tarricq et al. | 2022 | 66.963 | 30.947 | 0.739 | 1.705 | -3.076 | β |
| Cantat-Gaudin et al. | 2020 | 66.963 | 30.936 | 0.738 | 1.826 | -2.994 | β |
| SΓ‘nchez et al. | 2020 | 67.0 | 30.933 | β | 2.006 | -2.813 | β |
| Donor et al. | 2020 | 66.957 | 30.945 | β | 2.2 | -2.89 | -15.3 |
| Cantat-Gaudin & Anders | 2020 | 66.963 | 30.936 | 0.738 | 1.826 | -2.994 | β |
| Bica et al. | 2019 | 66.959 | 30.937 | β | β | β | β |
| Cantat-Gaudin et al. | 2018 | 66.963 | 30.936 | 0.738 | 1.826 | -2.994 | β |
| Loktin & Popova | 2017 | 66.96 | 30.945 | β | -3.618 | -6.296 | β |
| Kharchenko et al. | 2016 | 66.948 | 30.945 | β | β | β | β |
| Dias et al. | 2014 | 67.0 | 30.933 | β | 0.1 | -3.72 | β |
| Kharchenko et al. | 2013 | 66.957 | 30.945 | β | -2.65 | -6.15 | β |
| Kharchenko et al. | 2012 | 66.957 | 30.945 | β | -2.65 | -6.15 | β |
| Dias et al. | 2002 | 67.0 | 30.933 | β | 0.1 | -3.72 | β |
π‘ Note: The UCC values are estimated from its identified members.
| Reference | Year | Dist [kpc] | Av [mag] | DAv [mag] | Age [Myr] | [Fe/H] [dex] | Mass [Msun] | Bfr | BSS |
|---|---|---|---|---|---|---|---|---|---|
| Zhang et al. | 2024 | β | β | β | β | -0.330* | β | β | β |
| Hunt & Reffert | 2024 | β | β | β | β | β | 326* | β | β |
| Cavallo et al. | 2024 | 1.38 | 2.04 | β | 389 | 0.050 | β | β | β |
| Hunt & Reffert | 2023 | 1.27 | 1.74 | 2.01 | 247 | β | β | β | β |
| Just et al. | 2023 | β | β | β | 479 | β | 54 | β | β |
| Tarricq et al. | 2022 | 1.27 | β | β | 525 | β | β | β | β |
| Cantat-Gaudin et al. | 2020 | 1.32 | 1.34 | β | 525 | β | β | β | β |
| Donor et al. | 2020 | β | β | β | β | -0.070 | β | β | β |
| Cantat-Gaudin & Anders | 2020 | 1.30 | β | β | β | β | β | β | β |
| Cantat-Gaudin et al. | 2018 | 1.30 | β | β | β | β | β | β | β |
| Loktin & Popova | 2017 | 1.56 | 1.65 | β | 479 | β | β | β | β |
| Kharchenko et al. | 2016 | 1.26 | 1.86 | β | 479 | β | β | β | β |
| Kharchenko et al. | 2013 | 1.26 | 1.86 | β | 479 | β | β | β | β |
| Kharchenko et al. | 2012 | 1.26 | 1.86 | β | 479 | β | β | β | β |
| Dias et al. | 2002 | 1.05 | 0.84 | β | 1000 | β | β | β | β |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.