CWNU 1126

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0.39 UTI
0.36
CN
0.82
Cdens
0.75
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad) 4.1 [N/pc2]
  • CN 0.36 Poorly populated
  • Cdens 0.82 Dense
  • CC3 0.75 High quality
  • Clit 0.0 Rarely studied
  • Cdup 1.0 Unique

Overview

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CWNU 1126 is a poorly populated, dense object of high C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the absorption parameter (see Parameters). It is rarely studied in the literature.

Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.

Liu et al. (2025)
Classified as primordial binary cluster 95 along with OC_0185, and of multiple system 34 along with Pismis-Moreno_1, CWNU_1228, HSC_853, OC_0185 and HSC_824.

Palma et al. (2025)
Part of multiple system G30, along with Pismis-Moreno_1, OC_0185, HSC_824, CWNU_1228, FSR_0398 and CWNU_446.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Data

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Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 332.1 64.071 1.082 -1.462 -3.226 -21.606
Liu et al. 2025 332.32 64.08 1.08 -1.41 -3.25 -25.15
Hunt & Reffert 2024 332.32 64.076 1.075 -1.414 -3.246 -25.15
Cavallo et al. 2024 332.186 64.095 1.073 – – –
Hunt & Reffert 2023 332.32 64.076 1.075 -1.414 -3.246 -25.15
He et al. 2022 332.254 64.073 1.077 -1.452 -3.22 –

💡 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 99999– 1.03 0.98 1.4 12 0.150 126 – –
Liu et al. 2025 1.14 0.37 – 23 – – – –
Hunt & Reffert 2024 – – – – – 126(1) – –
Cavallo et al. 2024 1.03 1.30 – 8 0.150 – – –
Hunt & Reffert 2023 0.90 1.06 1.40 16 – – – –
He et al. 2022 – 0.90 – 8 – – – –

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Cluster % RA DEC Plx pmRA pmDE Rv UTI
CWWDL 14500 80.6 332.12 64.08 1.08 -1.49 -3.22 -20.31 0.03

💡 Note: The % column shows the percentage of members that CWNU 1126 shares with each listed object.

Visualization

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