CWNU 1076

(OCSN 173)

0.33 UTI

0.46

C_N

0.12

C_dens

0.75

C_C3

0.16

C_lit

1.0

C_dup

N_m (P>50%) 46

Core radius and density 2.7 [pc], 0.6 [pc^-2]

C3 classification BA

C_N 0.46 Poorly populated
C_dens 0.12 Very loose
C_C3 0.75 High quality
C_lit 0.16 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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CWNU 1076 is a poorly populated, very loose object of high C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is rarely studied in the literature.

Very close Low extinction Near-solar metallicity Intermediate age

Palma et al. (2025)
Classified as optical pair P291, along with Stock_2.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as moving group. CMD class: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Data

🔍 Search references for CWNU 1076 in: SciX Simbad

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Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	40.719	56.755	2.789	8.776	-4.026	-1.586
Yang et al.	2025	41.235	56.709	–	–	–	–
Wei et al.	2025	40.361	56.864	2.788	8.74	-4.005	–
Zhang et al.	2024	41.235	56.709	–	–	–	–
Cavallo et al.	2024	40.756	56.882	2.794	–	–	–
Hunt & Reffert	2023	41.235	56.709	2.772	8.698	-4.095	-2.327
Qin et al.	2023	40.93	56.68	2.8	8.71	-3.98	-3.17
He et al.	2022	40.98	56.579	2.77	8.78	-4.026	–

💡 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]	B_frac	BSS
UCC	99999–	0.37	0.51	0.56	110	0.101	78	0.31	–
Yang et al.	2025	–	–	–	110	-0.070⁽³⁾	–	–	–
Wei et al.	2025	0.38	0.51	–	135	0.250	78	0.31	–
Zhang et al.	2024	–	–	–	–	-0.049⁽¹⁾	–	–	–
Cavallo et al.	2024	0.36	0.64	–	145	0.310	–	–	–
Hunt & Reffert	2023	0.34	0.36	0.56	111	–	–	–	–
Qin et al.	2023	0.40	0.54	–	100	–	–	–	–
He et al.	2022	–	0.45	–	79	–	–	–	–

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

Visualization

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