HSC 2893
0.12
UTI
0.0
CN
0.1
Cdens
0.38
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
23
Core radius and density
2.7 [pc], 0.5 [pc-2]
- CN 0.0 Sparse
- Cdens 0.1 Very loose
- CC3 0.38 Low 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 2893 is a sparse, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, above 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 absorption and age parameters (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 | 258.178 | -36.514 | 0.708 | 2.094 | -1.374 | 26.673 |
| Hunt & Reffert | 2024 | 258.154 | -36.528 | 0.708 | 2.078 | -1.354 | â |
| Cavallo et al. | 2024 | 258.162 | -36.492 | 0.708 | â | â | â |
| Hunt & Reffert | 2023 | 258.154 | -36.528 | 0.708 | 2.078 | -1.354 | 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 | 1.42 | 1.395 | 0.77 | 109 | 0.480 | 162 | â | â |
| Liu et al. | 2025 | 1.98 | 0.46 | â | 107 | â | â | â | â |
| Hunt & Reffert | 2024 | 1.37 | 1.67 | 0.77 | 109 | â | 162(1) | â | â |
| Cavallo et al. | 2024 | 1.47 | 1.12 | â | 447 | 0.480 | â | â | â |
| Hunt & Reffert | 2023 | 1.37 | 1.67 | 0.77 | 109 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 252 along with UFMG_24.
Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P47, along with UFMG_24.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.99 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).