OC 0003

0.12 UTI

0.0

C_N

0.23

C_dens

0.38

C_C3

0.0

C_lit

1.0

C_dup

N_m (P>50%) 19

Core radius and density 2.0 [pc], 1.2 [pc^-2]

C3 classification CB

C_N 0.0 Sparse
C_dens 0.23 Very loose
C_C3 0.38 Low 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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OC 0003 is a sparse, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (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.

⚠️ 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.

High extinction Near-solar metallicity Intermediate age

Data

🔍 Search references for OC 0003 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–	270.239	-24.912	0.557	0.976	-0.119	8.574
Hao et al.	2022	270.242	-24.87	0.546	0.999	-0.192	–

💡 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–	–	3.24	–	631	0.265	–	–	–
Hao et al.	2022	–	3.24	–	631	0.265	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
HSC 71	88.0	270.3	-24.92	0.57	0.99	-0.08	8.57	0.11

💡 Note: The % column shows the percentage of members that OC 0003 shares with each listed object.

Visualization

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