HSC 2621
0.05
UTI
0.0
CN
0.02
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad)
0.1 [N/pc2]
- CN 0.0 Sparse
- Cdens 0.02 Very loose
- CC3 0.25 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 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 2621 is a sparse, very loose object of low C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as an 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.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 210.861 | -64.306 | 2.053 | -7.779 | -3.666 | -8.431 |
| Hunt & Reffert | 2023 | 210.857 | -64.458 | 2.101 | -7.785 | -3.691 | 5.432 |
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 | 0.45 | 0.29 | 0.36 | 465 | â | â | â | â |
| Hunt & Reffert | 2023 | 0.45 | 0.29 | 0.36 | 465 | â | â | â | â |
Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P477, along with Platais_12.
Hunt & Reffert (2024)
Classified as a moving group.