NGC 3446
0.03
UTI
0.0
CN
0.05
Cdens
0.12
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
6.1 [arcmin]
- CN 0.0 Sparse
- Cdens 0.05 Very loose
- CC3 0.12 Very low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
NGC 3446 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate* distance, well above the mid-plane, affected by low extinction. It is catalogued as an old cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 12 years.
(*): The parallax distance estimate (~4.92 kpc) differs significantly from the median photometric distance (~1.49 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.
Relatively close
Low extinction
Old
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 163.084 | -45.098 | 0.203 | -6.076 | 1.506 | â |
| Dias et al. | 2014 | 163.05 | -45.148 | â | -8.06 | 2.31 | â |
| Dias et al. | 2002 | 163.05 | -45.148 | â | -8.26 | 2.23 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Dias et al. | 2002 | 1.49 | 0.50 | â | 1000 | â | â | â | â |
