Czernik 27
(OCL 526; MWSC 1078)
0.89
UTI
0.72
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
Radius (P>50% members)
2.1 [arcmin]
- CN 0.72 Moderately populated
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 1.0 Very well-studied
- Cdup 1.0 Unique
Overview
Czernik 27 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, old cluster, but with a large variance across recent sources for the absorption and metallicity parameters (see Parameters). It is very well-studied in the literature.
Distant
Low extinction
Near-solar metallicity
Old
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | β | 105.832 | 6.384 | 0.202 | -0.49 | -1.421 | 57.059 |
| Li et al. | 2025 | 105.83 | 6.382 | 0.221 | -0.505 | -1.395 | β |
| Hu & Soubiran | 2025 | 105.838 | 6.375 | β | β | β | β |
| Almeida et al. | 2025 | 105.827 | 6.386 | β | β | β | β |
| Zhang et al. | 2024 | 105.833 | 6.383 | β | β | β | β |
| Hunt & Reffert | 2024 | 105.833 | 6.383 | 0.209 | -0.475 | -1.427 | 58.966 |
| Cavallo et al. | 2024 | 105.838 | 6.375 | 0.208 | β | β | β |
| Hunt & Reffert | 2023 | 105.833 | 6.383 | 0.209 | -0.475 | -1.427 | 58.966 |
| Almeida et al. | 2023 | 105.828 | 6.387 | β | β | β | β |
| Dias et al. | 2021 | 105.827 | 6.386 | 0.209 | -0.547 | -1.393 | β |
| Cantat-Gaudin et al. | 2020 | 105.83 | 6.382 | 0.221 | -0.505 | -1.395 | β |
| SΓ‘nchez et al. | 2020 | 105.8 | 6.417 | β | -0.61 | -1.587 | β |
| Cantat-Gaudin & Anders | 2020 | 105.83 | 6.382 | 0.221 | -0.505 | -1.395 | β |
| Bossini et al. | 2019 | 105.83 | 6.382 | β | β | β | β |
| Soubiran et al. | 2018 | 105.83 | 6.382 | β | β | β | 41.33 |
| Bica et al. | 2019 | 105.82 | 6.382 | β | β | β | β |
| Cantat-Gaudin et al. | 2018 | 105.83 | 6.382 | 0.221 | -0.505 | -1.395 | β |
| Loktin & Popova | 2017 | 105.825 | 6.413 | β | -2.177 | -0.59 | β |
| Dias et al. | 2014 | 105.8 | 6.417 | β | -2.32 | -1.94 | β |
| Gozha et al. | 2012 | 105.8 | 6.417 | β | β | β | β |
| Dias et al. | 2002 | 105.8 | 6.417 | β | -2.32 | -1.94 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Li et al. | 2025 | 4.63 | 0.42 | β | 1026 | -0.018 | β | β | β |
| Hu & Soubiran | 2025 | β | β | β | β | -0.250* | β | β | β |
| Almeida et al. | 2025 | 3.97 | 0.60 | β | 1159 | β | 322 | β | β |
| Zhang et al. | 2024 | β | β | β | β | -0.220* | β | β | β |
| Hunt & Reffert | 2024 | β | β | β | β | β | 572* | β | β |
| Cavallo et al. | 2024 | 3.21 | 1.14 | β | 977 | -0.730 | β | β | β |
| Hunt & Reffert | 2023 | 4.06 | 0.12 | 0.36 | 933 | β | β | β | β |
| Almeida et al. | 2023 | 4.06 | 0.39 | β | 1268 | -0.162 | 595* | 0.64 | β |
| Dias et al. | 2021 | 3.97 | 0.60 | β | 1159 | -0.281 | β | β | β |
| Cantat-Gaudin et al. | 2020 | 4.31 | 0.44 | β | 871 | β | β | β | β |
| Cantat-Gaudin & Anders | 2020 | 4.00 | β | β | β | β | β | β | β |
| Bossini et al. | 2019 | 3.92 | 0.54 | β | 1161 | -0.380 | β | β | β |
| Soubiran et al. | 2018 | 4.00 | β | β | β | β | β | β | β |
| Cantat-Gaudin et al. | 2018 | 4.00 | β | β | β | β | β | β | β |
| Loktin & Popova | 2017 | 6.08 | 0.59 | β | 575 | β | β | β | β |
| Gozha et al. | 2012 | 4.29 | β | β | 1122 | -0.380 | β | β | β |
| Dias et al. | 2002 | 4.29 | 0.22 | β | 1122 | -0.380 | β | β | β |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.


Almeida et al. (2025)
Mass determination: invalid due to poor quality CMD. Isochrone match: worst fit.
Cavallo et al. (2024)
Gold sample.