CWNU 2877
0.18
UTI
0.0
CN
0.38
Cdens
0.38
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
23
Core radius and density
1.2 [pc], 1.9 [pc-2]
- CN 0.0 Sparse
- Cdens 0.38 Loose
- CC3 0.38 Low 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
CWNU 2877 is a sparse, loose object of low C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high 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 was recently reported in the literature.
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 | 235.092 | -56.256 | 0.348 | -3.803 | -3.005 | -17.378 |
| Hunt & Reffert | 2024 | 235.083 | -56.261 | 0.344 | -3.808 | -3.035 | -17.603 |
| Cavallo et al. | 2024 | 235.083 | -56.258 | 0.345 | â | â | â |
| Hunt & Reffert | 2023 | 235.083 | -56.261 | 0.344 | -3.808 | -3.035 | -17.603 |
| He et al. | 2023 | 235.087 | -56.264 | 0.347 | -3.798 | -3.001 | -17.59 |
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 | 2.805 | 4.4 | 1.89 | 138 | -0.450 | 411 | â | â |
| Hunt & Reffert | 2024 | 2.66 | 4.35 | 1.89 | 138 | â | 411(1) | â | â |
| Cavallo et al. | 2024 | 3.36 | 4.45 | â | 224 | -0.450 | â | â | â |
| Hunt & Reffert | 2023 | 2.66 | 4.35 | 1.89 | 138 | â | â | â | â |
| He et al. | 2023 | 2.95 | 6.30 | â | 1 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.36 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.36 (50th percentile).