CWNU 1639
0.27
UTI
0.0
CN
0.98
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad)
4.9 [N/pc2]
- CN 0.0 Sparse
- Cdens 0.98 Very dense
- CC3 0.38 Low quality
- Clit 0.0 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 1639 is a sparse, very dense object of low C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a metal-rich, intermediate-age cluster (see Parameters). It was recently reported in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 331.562 | 59.525 | 0.348 | -1.791 | -2.465 | -52.44 |
| Hunt & Reffert | 2024 | 331.548 | 59.518 | 0.352 | -1.786 | -2.456 | -52.382 |
| Cavallo et al. | 2024 | 331.579 | 59.518 | 0.352 | â | â | â |
| Hunt & Reffert | 2023 | 331.548 | 59.518 | 0.352 | -1.786 | -2.456 | -52.382 |
| He et al. | 2023 | 331.58 | 59.512 | 0.359 | -1.8 | -2.464 | -52.86 |
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 | 2.83 | 2.46 | 0.97 | 240 | 0.620 | 263 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 263(1) | â | â |
| Cavallo et al. | 2024 | 2.92 | 2.21 | â | 240 | 0.620 | â | â | â |
| Hunt & Reffert | 2023 | 2.83 | 2.46 | 0.97 | 143 | â | â | â | â |
| He et al. | 2023 | 2.57 | 2.70 | â | 251 | 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: 1.00 (50th percentile).