OC 0368

0.14 UTI

0.0

C_N

0.12

C_dens

0.5

C_C3

0.06

C_lit

0.92

C_dup

N_m (P>50%) 23

Core radius and density 2.6 [pc], 0.6 [pc^-2]

C3 classification BB

C_N 0.0 Sparse
C_dens 0.12 Very loose
C_C3 0.5 Intermediate quality
C_lit 0.06 Rarely studied
C_dup 0.92 Very likely unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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OC 0368 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a relatively close distance, above 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 absorption and metallicity parameters (see Parameters). It is rarely studied in the literature.

Note: This is very likely a unique object, which shares a very small percentage of members with at least one previously reported entry. See table with shared members information.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=0.92) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Data

🔍 Search references for OC 0368 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–	107.124	-5.877	0.503	-1.242	1.346	15.365
Hunt & Reffert	2024	107.119	-5.907	0.497	-1.227	1.328	15.366
Cavallo et al.	2024	107.113	-5.899	0.497	–	–	–
Hunt & Reffert	2023	107.119	-5.907	0.497	-1.227	1.328	15.366
Hao et al.	2022	107.131	-5.845	0.534	-1.233	1.343	–

💡 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–	1.84	0.17	0.91	377	-0.082	190	–	–
Hunt & Reffert	2024	1.84	0.17	0.91	377	–	190⁽¹⁾	–	–
Cavallo et al.	2024	1.75	0.17	–	457	-0.380	–	–	–
Hunt & Reffert	2023	1.84	0.17	0.91	377	–	–	–	–
Hao et al.	2022	–	1.55	–	158	0.216	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
NGC 2338	8.0	106.98	-5.75	0.32	-1.14	1.22	102.0	0.2

💡 Note: The % column shows the percentage of members that OC 0368 shares with each listed object.

Visualization

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