HSC 2986
0.07
UTI
0.8
CN
1.0
Cdens
1.0
CC3
0.0
Clit
0.12
Cdup
Stellar density (N50/rad)
10.8 [N/pc2]
- CN 0.8 Rich
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.0 Rarely studied
- Cdup 0.12 Likely duplicate
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 2986 is a rich, very dense object of very high C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the absorption parameter (see Parameters). It was recently reported in the literature.
â ī¸ Warning: This is likely a duplicate object, which shares a large 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 | 283.033 | -36.862 | 6.6 | 3.099 | -27.515 | -2.654 |
| Cavallo et al. | 2024 | 282.061 | -36.267 | 6.684 | â | â | â |
| Hunt & Reffert | 2023 | 285.317 | -36.883 | 6.694 | 2.209 | -27.556 | -3.472 |
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 | 0.15 | 0.17 | 0.72 | 9 | -0.040 | â | â | â |
| Liu et al. | 2025 | 0.15 | 0.06 | â | 12 | â | â | â | â |
| Cavallo et al. | 2024 | 0.15 | 0.89 | â | 9 | -0.040 | â | â | â |
| Hunt & Reffert | 2023 | 0.15 | 0.17 | 0.72 | 7 | â | â | â | â |
Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 257 along with OCSN_3.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.