HSC 243
0.32
UTI
0.77
CN
1.0
Cdens
1.0
CC3
0.0
Clit
0.57
Cdup
Stellar density (N50/rad)
11.2 [N/pc2]
- CN 0.77 Rich
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.0 Rarely studied
- Cdup 0.57 Likely 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 243 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, very young cluster (see Parameters). It was recently reported in the literature.
Note: This is likely a unique object, which shares a moderate percentage of members with at least one previously reported entry. See table with shared members information.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 279.081 | -6.74 | 0.354 | -0.139 | -2.245 | 39.939 |
| Hunt & Reffert | 2024 | 279.073 | -6.763 | 0.354 | -0.136 | -2.243 | 95.009 |
| Cavallo et al. | 2024 | 279.084 | -6.726 | 0.355 | â | â | â |
| Hunt & Reffert | 2023 | 279.073 | -6.763 | 0.354 | -0.136 | -2.243 | 95.009 |
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 | 2.775 | 4.525 | 3.04 | 10 | 0.430 | 2594 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 2594(1) | â | â |
| Cavallo et al. | 2024 | 2.96 | 4.55 | â | 7 | 0.430 | â | â | â |
| Hunt & Reffert | 2023 | 2.59 | 4.50 | 3.04 | 12 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P228, along with OC_0043.
Cavallo et al. (2024)
Wood sample.