HSC 1544
0.20
UTI
0.26
CN
0.12
Cdens
0.12
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members)
38.4 [arcmin]
- CN 0.26 Poorly populated
- Cdens 0.12 Very loose
- CC3 0.12 Very low quality
- Clit 0.25 Poorly studied
- Cdup 1.0 Unique
Overview
HSC 1544 is a poorly populated, very loose object of very low C3 quality. Its parallax locates it at a close distance, below the mid-plane, affected by low 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.
Close
Low extinction
Near-solar metallicity
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 67.779 | 0.328 | 1.694 | 0.635 | -6.505 | 13.838 |
| Hu & Soubiran | 2025 | 67.997 | 0.963 | â | â | â | â |
| Zhang et al. | 2024 | 67.779 | 0.107 | â | â | â | â |
| Cavallo et al. | 2024 | 67.997 | 0.963 | 1.709 | â | â | â |
| Hunt & Reffert | 2023 | 67.779 | 0.107 | 1.707 | 0.649 | -6.503 | 9.769 |
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] | Bfr | BSS |
|---|---|---|---|---|---|---|---|---|---|
| Hu & Soubiran | 2025 | â | â | â | â | -0.250* | â | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.165* | â | â | â |
| Cavallo et al. | 2024 | 0.58 | 0.46 | â | 562 | 0.290 | â | â | â |
| Hunt & Reffert | 2023 | 0.56 | 0.18 | 0.36 | 184 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.