OC 0412
0.23
UTI
0.35
CN
0.17
Cdens
0.5
CC3
0.06
Clit
1.0
Cdup
Stellar density (N50/rad)
0.8 [N/pc2]
- CN 0.35 Poorly populated
- Cdens 0.17 Very loose
- CC3 0.5 Intermediate 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
OC 0412 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a large* distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is rarely studied in the literature.
(*): The parallax distance estimate (~8.27 kpc) differs significantly from the median photometric distance (~5.71 kpc).
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 | 113.388 | -23.958 | 0.121 | -1.118 | 2.07 | â |
| Hunt & Reffert | 2024 | 113.348 | -23.963 | 0.135 | -1.109 | 2.056 | 76.236 |
| Cavallo et al. | 2024 | 113.399 | -23.974 | 0.133 | â | â | â |
| Hunt & Reffert | 2023 | 113.348 | -23.963 | 0.135 | -1.109 | 2.056 | 76.236 |
| Hao et al. | 2022 | 113.389 | -23.963 | 0.109 | -1.115 | 2.066 | 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 | 5.71 | 1.55 | 2.42 | 107 | -0.013 | 775 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 775(1) | â | â |
| Cavallo et al. | 2024 | 4.21 | 1.49 | â | 107 | -0.100 | â | â | â |
| Hunt & Reffert | 2023 | 7.21 | 1.55 | 2.42 | 153 | â | â | â | â |
| Hao et al. | 2022 | â | 1.95 | â | 3 | 0.073 | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Silver sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.54 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.54 (50th percentile).