HSC 1700
0.18
UTI
0.26
CN
0.27
Cdens
0.25
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
26
Core radius and density
1.0 [pc], 1.4 [pc-2]
- CN 0.26 Poorly populated
- Cdens 0.27 Loose
- CC3 0.25 Low quality
- Clit 0.06 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 1700 is a poorly populated, loose object of low C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (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 | 102.437 | -3.425 | 0.55 | -0.794 | 1.579 | 37.807 |
| Hu & Soubiran | 2025 | 102.44 | -3.403 | â | â | â | â |
| Hunt & Reffert | 2024 | 102.419 | -3.414 | 0.562 | -0.844 | 1.568 | 57.237 |
| Cavallo et al. | 2024 | 102.44 | -3.403 | 0.566 | â | â | â |
| Hunt & Reffert | 2023 | 102.419 | -3.414 | 0.562 | -0.844 | 1.568 | 57.237 |
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 | 1.67 | 0.38 | 1.02 | 636 | 0.040 | 97 | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.270(5) | â | â | â |
| Hunt & Reffert | 2024 | 1.67 | 0.38 | 1.02 | 636 | â | 97(1) | â | â |
| Cavallo et al. | 2024 | 1.67 | 0.41 | â | 1122 | 0.350 | â | â | â |
| Hunt & Reffert | 2023 | 1.67 | 0.38 | 1.02 | 635 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.89 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.89 (50th percentile).