OC 0684
0.11
UTI
0.0
CN
0.42
Cdens
0.75
CC3
0.25
Clit
0.32
Cdup
Radius (P>50% members)
10.1 [arcmin]
- CN 0.0 Sparse
- Cdens 0.42 Loose
- CC3 0.75 High quality
- Clit 0.25 Poorly studied
- Cdup 0.32 Possibly duplicate
Overview
OC 0684 is a sparse, loose object of high C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, very young cluster (see Parameters). It is poorly studied in the literature.
â ī¸ Warning: This is possibly a duplicate object, which shares a significant percentage of members with at least one previously reported entry. See table with shared members information.
Relatively close
Moderate extinction
Massive
Near-solar metallicity
Very young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 256.794 | -35.731 | 0.906 | 1.242 | -2.354 | -1.291 |
| Hunt & Reffert | 2024 | 256.773 | -35.804 | 0.897 | 1.253 | -2.272 | 13.018 |
| Cavallo et al. | 2024 | 256.629 | -35.392 | 0.898 | â | â | â |
| Hunt & Reffert | 2023 | 256.773 | -35.804 | 0.897 | 1.253 | -2.272 | 13.018 |
| Hao et al. | 2022 | 256.809 | -35.796 | 0.901 | 1.254 | -2.399 | â |
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] | Bfr | BSS |
|---|---|---|---|---|---|---|---|---|---|
| Hunt & Reffert | 2024 | â | â | â | â | â | 1304* | â | â |
| Cavallo et al. | 2024 | 1.05 | 1.84 | â | 9 | -0.090 | â | â | â |
| Hunt & Reffert | 2023 | 1.05 | 1.68 | 2.65 | 6 | â | â | â | â |
| Hao et al. | 2022 | â | 2.33 | â | 5 | 0.414 | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.