HSC 869
0.34
UTI
0.0
CN
1.0
Cdens
0.62
CC3
0.03
Clit
1.0
Cdup
Nm (P>50%)
23
Core radius and density
0.4 [pc], 14 [pc-2]
- CN 0.0 Sparse
- Cdens 1.0 Very dense
- CC3 0.62 Intermediate quality
- Clit 0.03 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 869 is a sparse, very dense object of intermediate C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by high extinction. It is catalogued as a metal-poor, very young cluster, but with a large variance across recent sources for the age parameter (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 | 345.185 | 61.323 | 0.855 | -3.065 | -2.952 | â |
| Hunt & Reffert | 2024 | 345.175 | 61.313 | 0.858 | -3.08 | -2.978 | â |
| Cavallo et al. | 2024 | 345.181 | 61.324 | 0.877 | â | â | â |
| Hunt & Reffert | 2023 | 345.175 | 61.313 | 0.858 | -3.08 | -2.978 | 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 | 1.12 | 3.28 | 1.47 | 4 | -0.880 | 141 | â | â |
| Hunt & Reffert | 2024 | 1.12 | 3.28 | 1.47 | 4 | â | 141(1) | â | â |
| Cavallo et al. | 2024 | 3.15 | 2.62 | â | 145 | -0.880 | â | â | â |
| Hunt & Reffert | 2023 | 1.12 | 3.28 | 1.47 | 4 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Wood 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).