OC 0232

0.19 UTI

0.0

C_N

0.08

C_dens

0.75

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 24

Core radius and density 2.5 [pc], 0.4 [pc^-2]

C3 classification AB

C_N 0.0 Sparse
C_dens 0.08 Very loose
C_C3 0.75 High quality
C_lit 0.06 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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OC 0232 is a sparse, very loose object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is rarely studied in the literature.

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

⚠️ 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.

Relatively close Moderate extinction Near-solar metallicity Young

Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P62, along with NGC_366.

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).

Data

🔍 Search references for OC 0232 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–	17.628	62.743	0.372	-2.061	-0.343	–
Hunt & Reffert	2024	17.573	62.732	0.364	-2.065	-0.352	–
Cavallo et al.	2024	17.636	62.749	0.363	–	–	–
Hunt & Reffert	2023	17.573	62.732	0.364	-2.065	-0.352	–
Hao et al.	2022	17.852	62.729	0.366	-2.019	-0.379	–

💡 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–	2.51	2.55	1.12	76	0.292	415	–	–
Hunt & Reffert	2024	2.51	2.53	1.12	76	–	415⁽¹⁾	–	–
Cavallo et al.	2024	2.68	2.57	–	107	0.320	–	–	–
Hunt & Reffert	2023	2.51	2.53	1.12	76	–	–	–	–
Hao et al.	2022	–	4.39	–	13	0.265	–	–	–

(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 8488	56.0	17.49	62.79	0.35	-2.06	-0.33	-82.23	0.05

💡 Note: The % column shows the percentage of members that OC 0232 shares with each listed object.

Visualization

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