HSC 1487
0.16
UTI
0.26
CN
0.21
Cdens
0.12
CC3
0.1
Clit
1.0
Cdup
Nm (P>50%)
26
Core radius and density
1.2 [pc], 1.1 [pc-2]
- CN 0.26 Poorly populated
- Cdens 0.21 Very loose
- CC3 0.12 Very low quality
- Clit 0.1 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 1487 is a poorly populated, very loose object of very low 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, but with a large variance across recent sources for the metallicity parameter (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 | 92.838 | 23.647 | 0.227 | 0.895 | -0.264 | 31.975 |
| Hu & Soubiran | 2025 | 92.847 | 23.664 | â | â | â | â |
| Zhang et al. | 2024 | 92.846 | 23.649 | â | â | â | â |
| Hunt & Reffert | 2024 | 92.846 | 23.649 | 0.225 | 0.925 | -0.3 | 40.441 |
| Cavallo et al. | 2024 | 92.847 | 23.664 | 0.218 | â | â | â |
| Hunt & Reffert | 2023 | 92.846 | 23.649 | 0.225 | 0.925 | -0.3 | 40.441 |
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 | 3.99 | 1.59 | 1.44 | 874 | -0.229 | 195 | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.250(5) | â | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.229(1) | â | â | â |
| Hunt & Reffert | 2024 | 3.99 | 1.59 | 1.44 | 874 | â | 195(1) | â | â |
| Cavallo et al. | 2024 | 3.65 | 1.78 | â | 631 | 0.140 | â | â | â |
| Hunt & Reffert | 2023 | 3.99 | 1.59 | 1.44 | 875 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.70 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.70 (50th percentile).