OCSN 4
- CN 0.27 Poorly populated
- Cdens 0.51 Moderately dense
- CC3 0.75 High quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
OCSN 4 is a poorly populated, moderately dense object of high C3 quality. Its parallax locates it at a very close* distance, near the mid-plane. It is catalogued as a young cluster (see Parameters). It was recently reported in the literature. (*): The parallax distance estimate (~0.48 kpc) differs significantly from the median photometric distance (~0.71 kpc).
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 | – | 272.02 | -16.604 | 2.065 | -0.001 | -3.873 | -12.302 |
| Qin et al. | 2023 | 272.15 | -16.51 | 2.08 | 0.02 | -3.93 | -10.09 |
💡 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 |
|---|---|---|---|---|---|---|---|---|---|
| Qin et al. | 2023 | 0.71 | 1.08 | – | 89 | – | – | – | – |
💡 Note: The parameters are sometimes transformed from their original values to match the format of the columns shown here, see FAQ. The columns DAv, Bfr, BSS correspond to differential extinction, binary fraction, and blue stragglers, respectively. BSS values can be listed as fractions or integers.
