FoF 1218
(LP 1218)
0.73
UTI
0.77
CN
1.0
Cdens
1.0
CC3
0.45
Clit
1.0
Cdup
Stellar density (N50/rad)
24.8 [N/pc2]
- CN 0.77 Rich
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.45 Poorly 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
FoF 1218 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, young cluster, but with a large variance across recent sources for the distance and age parameters (see Parameters). It is poorly studied in the literature.
Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 273.98 | -18.094 | 0.362 | -0.001 | -1.197 | 13.704 |
| Almeida et al. | 2025 | 273.966 | -18.092 | â | â | â | â |
| Hunt & Reffert | 2024 | 273.98 | -18.104 | 0.356 | -0.003 | -1.214 | 7.791 |
| Cavallo et al. | 2024 | 273.981 | -18.104 | 0.357 | â | â | â |
| Hunt & Reffert | 2023 | 273.98 | -18.104 | 0.356 | -0.003 | -1.214 | 7.791 |
| Dias et al. | 2021 | 273.966 | -18.092 | 0.357 | -0.061 | -1.22 | â |
| Cantat-Gaudin et al. | 2020 | 273.976 | -18.099 | 0.365 | -0.034 | -1.161 | â |
| Liu & Pang | 2019 | 273.96 | -18.089 | 0.359 | -0.074 | -1.196 | 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] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 2.56 | 2.66 | 2.73 | 68 | 0.340 | 1606 | â | â |
| Liu et al. | 2025 | 7.21 | 1.08 | â | 56 | â | â | â | â |
| Almeida et al. | 2025 | 2.58 | 2.66 | â | 8 | â | 963 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 2250(1) | â | â |
| Cavallo et al. | 2024 | 2.03 | 2.93 | â | 316 | 0.340 | â | â | â |
| Hunt & Reffert | 2023 | 2.46 | 3.30 | 2.73 | 68 | â | â | â | â |
| Dias et al. | 2021 | 2.58 | 2.66 | â | 8 | 0.259 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 2.54 | 1.86 | â | 257 | â | â | â | â |
| Liu & Pang | 2019 | â | â | â | 513 | 0.500 | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Liu et al. (2025)
Classified as primordial binary cluster 154 along with UBC_1010.
Palma et al. (2025)
Classified as optical pair P249, along with UBC_1010.
Cavallo et al. (2024)
Gold sample.
Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: intermediate fit. Silver sample.