HSC 2584
0.26
UTI
0.38
CN
0.06
Cdens
0.75
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
38
Core radius and density
2.7 [pc], 0.3 [pc-2]
- CN 0.38 Poorly populated
- Cdens 0.06 Very 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 2584 is a poorly populated, very loose object of high C3 quality. Its parallax locates it at a moderate 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 age and metallicity parameters (see Parameters). It was recently reported in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 202.237 | -64.78 | 0.362 | -9.041 | -1.921 | -45.16 |
| Hu & Soubiran | 2025 | 202.163 | -64.773 | â | â | â | â |
| Hunt & Reffert | 2024 | 202.146 | -64.777 | 0.365 | -9.033 | -1.919 | -46.307 |
| Cavallo et al. | 2024 | 202.163 | -64.773 | 0.365 | â | â | â |
| Hunt & Reffert | 2023 | 202.146 | -64.777 | 0.365 | -9.033 | -1.919 | -46.307 |
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 | 2.54 | 1.54 | 2.11 | 244 | -0.140 | 200 | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.350(5) | â | â | â |
| Hunt & Reffert | 2024 | 2.54 | 1.54 | 2.11 | 244 | â | 200(1) | â | â |
| Cavallo et al. | 2024 | 2.25 | 1.32 | â | 1096 | 0.070 | â | â | â |
| Hunt & Reffert | 2023 | 2.54 | 1.54 | 2.11 | 244 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Classified as optical pair P282, along with Collinder_271.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.55 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.55 (50th percentile).