HSC 40
0.47
UTI
0.59
CN
1.0
Cdens
0.75
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
2.2 [arcmin]
- CN 0.59 Moderately populated
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 40 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by very high extinction. It is catalogued as a massive, metal-poor, intermediate-age 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.
Relatively close
Very high extinction
Massive
Metal-poor
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 268.969 | -26.721 | 0.333 | -0.649 | -2.453 | -17.655 |
| Hunt & Reffert | 2024 | 268.971 | -26.726 | 0.349 | -0.635 | -2.414 | -10.691 |
| Cavallo et al. | 2024 | 268.971 | -26.715 | 0.354 | â | â | â |
| Hunt & Reffert | 2023 | 268.971 | -26.726 | 0.349 | -0.635 | -2.414 | -10.691 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Hunt & Reffert | 2024 | â | â | â | â | â | 2246* | â | â |
| Cavallo et al. | 2024 | 3.10 | 5.08 | â | 100 | -0.800 | â | â | â |
| Hunt & Reffert | 2023 | 2.58 | 4.97 | 2.83 | 108 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Silver sample.