HSC 1820
Summary
HSC 1820 is a sparse, very loose object of intermediate C3 quality. It is located at a large distance from the Sun, above the mid-plane. It was recently reported in the literature.
This is very likely a unique object, which shares a small percentage of members with at least one previously reported entry.
Warning: contains less than 25 stars with P>0.5 estimated.
Warning: the low UTI value and no obvious signs of duplication (C_dup=0.84) indicates that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Hunt & Reffert (2023) | 111.981 | -15.38 | 0.169 | -1.526 | 1.45 | – |
| Cavallo et al. (2024) | 111.951 | -15.411 | 0.17 | – | – | – |
| Hunt & Reffert (2024) | 111.981 | -15.38 | 0.169 | -1.526 | 1.45 | – |
| UCC | 111.979 | -15.399 | 0.172 | -1.512 | 1.468 | – |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Hunt & Reffert (2023) | AV50=2.154, diffAV50=1.207, MOD50=13.345, logAge50=7.737 |
| Cavallo et al. (2024) | AV50=2.14, dMod50=12.85, logAge50=7.97, [Fe/H]50=0.07 |
| Hunt & Reffert (2024) | MassJ=267.823, MassTot=285.244 |
Search coordinates in Bayestar19
Cluster region map
Objects with shared members
| Cluster | % | RA | DEC | Plx | pmRA | pmDE | Rv | UTI |
|---|---|---|---|---|---|---|---|---|
| Haffner 10 | 16.0 | 112.15 | -15.36 | 0.26 | -1.18 | 1.57 | 87.99 | 1.0 |
| Czernik 29 | 8.0 | 112.11 | -15.4 | 0.24 | -1.55 | 1.32 | 88.41 | 0.69 |