HSC 1520
0.21
UTI
0.4
CN
0.04
Cdens
0.62
CC3
0.0
Clit
1.0
Cdup
Nm (P>50%)
40
Core radius and density
5.3 [pc], 0.2 [pc-2]
- CN 0.4 Poorly populated
- Cdens 0.04 Very loose
- CC3 0.62 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 1520 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (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 | 95.176 | 19.409 | 0.217 | 0.066 | -0.285 | -5.532 |
| Zhang et al. | 2024 | 95.172 | 19.388 | â | â | â | â |
| Hunt & Reffert | 2024 | 95.172 | 19.388 | 0.229 | 0.066 | -0.298 | 29.821 |
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 | 3.74 | 1.72 | 2.54 | 159 | -0.227 | 278 | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.227(1) | â | â | â |
| Hunt & Reffert | 2024 | 3.74 | 1.72 | 2.54 | 159 | â | 278(1) | 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: 0.94 (50th percentile).
Hunt & Reffert (2023)
Classified as moving group. CMD class: 0.94 (50th percentile).