HSC 2651
0.23
UTI
0.0
CN
0.25
Cdens
0.75
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
22
Core radius and density
1.4 [pc], 1.3 [pc-2]
- CN 0.0 Sparse
- Cdens 0.25 Loose
- CC3 0.75 High 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 2651 is a sparse, loose object of high C3 quality. Its parallax locates it at a moderate distance, near 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 age 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 | 217.478 | -61.137 | 0.472 | -3.801 | -3.076 | â |
| Hu & Soubiran | 2025 | 217.519 | -61.14 | â | â | â | â |
| Hunt & Reffert | 2024 | 217.463 | -61.14 | 0.474 | -3.82 | -3.079 | â |
| Cavallo et al. | 2024 | 217.52 | -61.14 | 0.474 | â | â | â |
| Hunt & Reffert | 2023 | 217.463 | -61.14 | 0.474 | -3.82 | -3.079 | â |
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 | 2.02 | 1.96 | 0.405 | 125 | 0.030 | 133 | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.120(5) | â | â | â |
| Hunt & Reffert | 2024 | 2.02 | 1.96 | 0.40 | 125 | â | 133(1) | â | â |
| Cavallo et al. | 2024 | 1.70 | 1.81 | â | 676 | 0.180 | â | â | â |
| Hunt & Reffert | 2023 | 2.02 | 1.96 | 0.41 | 124 | 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: 0.97 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.97 (50th percentile).