HSC 2490
0.21
UTI
0.36
CN
0.08
Cdens
0.62
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
34.3 [arcmin]
- CN 0.36 Poorly populated
- Cdens 0.08 Very loose
- CC3 0.62 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 2490 is a poorly populated, very loose object of intermediate 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 (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 | 178.115 | -68.448 | 1.04 | -5.323 | -1.013 | 10.707 |
| Cavallo et al. | 2024 | 178.491 | -68.545 | 1.042 | â | â | â |
| Hunt & Reffert | 2023 | 180.684 | -68.588 | 1.043 | -5.32 | -1.043 | 12.271 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Cavallo et al. | 2024 | 0.95 | 0.85 | â | 282 | 0.040 | â | â | â |
| Hunt & Reffert | 2023 | 0.91 | 0.45 | 0.81 | 246 | â | â | â | â |
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.