CWNU 1178

0.24 UTI

0.25

C_N

0.22

C_dens

0.75

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 25

Stellar density (N₅₀/rad) 1.1 [N/pc²]

C3 classification BA

C_N 0.25 Poorly populated
C_dens 0.22 Very loose
C_C3 0.75 High quality
C_lit 0.0 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 1178 is a poorly populated, very loose object of high C3 quality. Its parallax locates it at a very close distance, below 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 parameter (see Parameters). It is rarely studied in the literature.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Very close Low extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as a moving group.

Data

🔍 Search references for CWNU 1178 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–	67.614	-42.554	7.215	0.851	20.04	9.305
Cavallo et al.	2024	68.523	-40.968	7.223	–	–	–
Hunt & Reffert	2023	67.644	-43.185	7.219	0.446	19.613	9.302
He et al.	2022	68.118	-42.837	7.174	0.617	20.131	–

💡 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–	0.13	0.15	0.43	40	0.140	–	–	–
Cavallo et al.	2024	0.13	0.61	–	66	0.140	–	–	–
Hunt & Reffert	2023	0.13	0.06	0.43	37	–	–	–	–
He et al.	2022	–	0.15	–	40	–	–	–	–

Visualization

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