HSC 2268
0.16
UTI
0.0
CN
0.06
Cdens
0.62
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
23
Core radius and density
2.6 [pc], 0.3 [pc-2]
- CN 0.0 Sparse
- Cdens 0.06 Very loose
- CC3 0.62 Intermediate quality
- Clit 0.06 Rarely studied
- Cdup 1.0 Unique
đĨ Members
đ Colab
đŦ Bayestar19
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
Overview
HSC 2268 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by low 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 was recently reported in the literature.
â ī¸ Warning: the low UTI value and no obvious signs of duplication (Cdup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 150.587 | -52.972 | 0.511 | -9.574 | 4.642 | 18.518 |
| Hu & Soubiran | 2025 | 150.548 | -52.903 | â | â | â | â |
| Hunt & Reffert | 2024 | 150.53 | -53.014 | 0.507 | -9.561 | 4.617 | 22.713 |
| Cavallo et al. | 2024 | 150.548 | -52.903 | 0.503 | â | â | â |
| Hunt & Reffert | 2023 | 150.53 | -53.014 | 0.507 | -9.561 | 4.617 | 22.713 |
đĄ 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] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 1.84 | 0.59 | 0.4 | 634 | -0.090 | 128 | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.290(5) | â | â | â |
| Hunt & Reffert | 2024 | 1.84 | 0.59 | 0.40 | 634 | â | 128(1) | â | â |
| Cavallo et al. | 2024 | 1.90 | 1.12 | â | 501 | 0.110 | â | â | â |
| Hunt & Reffert | 2023 | 1.84 | 0.59 | 0.40 | 634 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.96 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.96 (50th percentile).