FSR 0046
(MWSC 2850)
0.24
UTI
0.35
CN
0.29
Cdens
0.12
CC3
0.23
Clit
1.0
Cdup
Nm (P>50%)
35
Core radius and density
1.1 [pc], 1.4 [pc-2]
- CN 0.35 Poorly populated
- Cdens 0.29 Loose
- CC3 0.12 Very low quality
- Clit 0.23 Rarely studied
- Cdup 1.0 Unique
Overview
FSR 0046 is a poorly populated, loose object of very low C3 quality. Its parallax locates it at a moderate* distance, near the mid-plane, affected by very high extinction. It is catalogued as an extremely massive, intermediate-age cluster (see Parameters). It is rarely studied in the literature.
(*): The parallax distance estimate (~2.19 kpc) differs significantly from the median photometric distance (~4.74 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 | 273.587 | -17.343 | 0.457 | -0.052 | -3.495 | 17.323 |
| Just et al. | 2023 | 273.569 | -17.326 | â | â | â | â |
| Dias et al. | 2018 | â | â | â | -0.01 | -3.66 | â |
| Sampedro et al. | 2017 | 273.583 | -17.322 | â | -0.31 | -5.41 | â |
| Kharchenko et al. | 2016 | 273.569 | -17.326 | â | â | â | â |
| Dias et al. | 2014 | 273.583 | -17.322 | â | 0.42 | -3.47 | â |
| Kharchenko et al. | 2013 | 273.577 | -17.325 | â | 4.8 | -2.77 | â |
| Morales et al. | 2013 | 273.583 | -17.322 | â | â | â | â |
| Froebrich et al. | 2007 | 273.583 | -17.322 | â | â | â | â |
| Dias et al. | 2002 | 273.583 | -17.322 | â | 0.42 | -3.47 | 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 | 4.74 | 6.11 | â | 251 | â | 15631 | â | â |
| Just et al. | 2023 | â | â | â | 251 | â | 15631 | â | â |
| Kharchenko et al. | 2016 | 4.74 | 6.11 | â | 251 | â | â | â | â |
| Kharchenko et al. | 2013 | 4.74 | 6.11 | â | 251 | â | â | â | â |
| Dias et al. | 2002 | 4.74 | 6.11 | â | 251 | â | â | â | â |
MOCA

Morales et al. (2013)
Classified as morphological type 'OC2' (totally exposed cluster without correlation with ATLASGAL emission). Morphological flag: one or a few submm emission within the cluster area.