HSC 458
0.24
UTI
0.25
CN
0.45
Cdens
0.5
CC3
0.0
Clit
1.0
Cdup
Nm (P>50%)
25
Core radius and density
0.9 [pc], 2.2 [pc-2]
- CN 0.25 Poorly populated
- Cdens 0.45 Loose
- CC3 0.5 Intermediate quality
- Clit 0.0 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 458 is a poorly populated, loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a young cluster (see Parameters). It was recently reported in the literature.
Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.
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 | 294.283 | 20.493 | 0.205 | -2.658 | -5.793 | 180.824 |
| Hunt & Reffert | 2024 | 294.276 | 20.491 | 0.21 | -2.643 | -5.792 | â |
| Hunt & Reffert | 2023 | 294.276 | 20.491 | 0.21 | -2.643 | -5.792 | 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 | 4.6 | 4.4 | 2.07 | 29 | â | 547 | â | â |
| Hunt & Reffert | 2024 | 4.60 | 4.40 | 2.07 | 29 | â | 547(1) | â | â |
| Hunt & Reffert | 2023 | 4.60 | 4.40 | 2.07 | 29 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.10 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.10 (50th percentile).