HXHWL 7
0.42
UTI
0.59
CN
0.32
Cdens
1.0
CC3
0.1
Clit
1.0
Cdup
Nm (P>50%)
68
Core radius and density
2.3 [pc], 1.6 [pc-2]
- CN 0.59 Moderately populated
- Cdens 0.32 Loose
- CC3 1.0 Very high quality
- Clit 0.1 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
HXHWL 7 is a moderately populated, loose object of very high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the absorption and metallicity parameters (see Parameters). It is rarely studied in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 274.277 | -20.317 | 0.777 | 0.005 | -1.623 | -29.864 |
| Hunt & Reffert | 2024 | 274.277 | -20.345 | 0.78 | 0.019 | -1.632 | -23.678 |
| Cavallo et al. | 2024 | 274.27 | -20.319 | 0.779 | â | â | â |
| Hunt & Reffert | 2023 | 274.277 | -20.345 | 0.78 | 0.019 | -1.632 | -23.678 |
| He et al. | 2021 | 274.299 | -20.331 | 0.79 | -0.06 | -1.62 | 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 | 1.26 | 0.66 | 0.43 | 68 | -0.176 | 300 | â | â |
| Liu et al. | 2025 | 1.61 | 0.28 | â | 74 | â | â | â | â |
| Hunt & Reffert | 2024 | 1.21 | 0.66 | 0.43 | 68 | â | 300(1) | â | â |
| Cavallo et al. | 2024 | 1.44 | 1.17 | â | 36 | -0.550 | â | â | â |
| Hunt & Reffert | 2023 | 1.21 | 0.66 | 0.43 | 68 | â | â | â | â |
| He et al. | 2021 | 1.26 | 1.14 | â | 30 | 0.198 | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 60 along with CWNU_155.
Palma et al. (2025)
Classified as optical pair P316, along with CWNU_155.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).