HSC 1550
0.13
UTI
0.0
CN
0.0
Cdens
0.62
CC3
0.0
Clit
1.0
Cdup
Nm (P>50%)
18
Core radius and density
9.8 [pc], 0.02 [pc-2]
- CN 0.0 Sparse
- Cdens 0.0 Very loose
- CC3 0.62 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 1550 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a large distance, well below the mid-plane, affected by low extinction. It is catalogued as an old 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 | 88.73 | 11.782 | 0.112 | 0.329 | -0.516 | 49.894 |
| Hunt & Reffert | 2023 | 88.689 | 11.749 | 0.115 | 0.308 | -0.515 | 66.247 |
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 | 6.97 | 0.49 | 1.97 | 1040 | â | â | â | â |
| Hunt & Reffert | 2023 | 6.97 | 0.49 | 1.97 | 1040 | â | â | â | â |
Hunt & Reffert (2024)
Classified as moving group. CMD classes: 0.27 (50th percentile), false positive? (human-assigned).
Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 0.27 (50th percentile), false positive? (human-assigned).