OC 0440
0.43
UTI
0.49
CN
0.16
Cdens
1.0
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members)
1.9 [arcmin]
- CN 0.49 Poorly populated
- Cdens 0.16 Very loose
- CC3 1.0 Very high quality
- Clit 0.25 Poorly studied
- Cdup 1.0 Unique
Overview
OC 0440 is a poorly populated, very loose object of very high C3 quality. Its parallax locates it at a very large* distance, well below 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 parameter (see Parameters). It is poorly studied in the literature.
(*): The parallax distance estimate (~13.97 kpc) differs significantly from the median photometric distance (~6.51 kpc).
Very distant
Moderate extinction
Massive
Near-solar metallicity
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 117.051 | -36.149 | 0.072 | -1.134 | 2.192 | â |
| Hunt & Reffert | 2024 | 117.05 | -36.148 | 0.061 | -1.143 | 2.193 | 114.67 |
| Cavallo et al. | 2024 | 117.068 | -36.163 | 0.066 | â | â | â |
| Hunt & Reffert | 2023 | 117.05 | -36.148 | 0.061 | -1.143 | 2.193 | 114.67 |
| Hao et al. | 2022 | 117.063 | -36.152 | 0.07 | -1.132 | 2.186 | 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 | 1301* | â | â |
| Cavallo et al. | 2024 | 2.68 | 2.26 | â | 71 | -1.050 | â | â | â |
| Hunt & Reffert | 2023 | 10.35 | 2.32 | 1.49 | 38 | â | â | â | â |
| Hao et al. | 2022 | â | 2.33 | â | 1 | 0.112 | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Silver sample.