HSC 1969
0.18
UTI
0.26
CN
0.13
Cdens
0.5
CC3
0.0
Clit
1.0
Cdup
Nm (P>50%)
26
Core radius and density
2.0 [pc], 0.6 [pc-2]
- CN 0.26 Poorly populated
- Cdens 0.13 Very loose
- CC3 0.5 Intermediate 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 1969 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a very close distance, above 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.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 127.219 | -22.626 | 2.327 | -12.203 | 5.015 | 30.815 |
| Cavallo et al. | 2024 | 127.412 | -22.667 | 2.33 | â | â | â |
| Hunt & Reffert | 2023 | 127.045 | -22.552 | 2.333 | -12.246 | 4.999 | 34.85 |
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 | 0.425 | 0.275 | 0.46 | 112 | 0.310 | â | â | â |
| Cavallo et al. | 2024 | 0.44 | 0.37 | â | 87 | 0.310 | â | â | â |
| Hunt & Reffert | 2023 | 0.41 | 0.18 | 0.46 | 137 | â | â | â | â |
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as moving group. CMD class: 0.98 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.98 (50th percentile).