OCSN 38

(oc038)

0.01 UTI

0.41

C_N

1.0

C_dens

1.0

C_C3

0.0

C_lit

0.02

C_dup

N₅₀ (P>50% members) 41

Stellar density (N₅₀/rad) 9.6 [N/pc²]

C3 classification AA

C_N 0.41 Poorly populated
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.0 Rarely studied
C_dup 0.02 Very likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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OCSN 38 is a poorly populated, very dense object of very high C3 quality. Its parallax locates it at a very close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster (see Parameters). It was recently reported in the literature.

⚠️ Warning: This is very likely a duplicate object, which shares a large percentage of members with at least one previously reported entry. See table with shared members information.

Very close Moderate extinction Near-solar metallicity Very young

Data

🔍 Search references for OCSN 38 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–	332.888	73.154	2.926	5.365	1.579	-17.501
Wei et al.	2025	333.135	73.353	2.927	5.366	1.657	–
Qin et al.	2023	332.37	72.93	2.93	5.36	1.61	-17.5

💡 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–	0.49	1.02	–	7	0.250	71	0.21	–
Wei et al.	2025	0.48	1.11	–	8	0.250	71	0.21	–
Qin et al.	2023	0.50	0.93	–	6	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Theia 10	97.6	333.13	73.25	2.93	5.4	1.58	-16.15	0.24
Collinder 471	65.9	332.56	73.02	2.92	5.33	1.56	-17.78	0.63

💡 Note: The % column shows the percentage of members that OCSN 38 shares with each listed object.

Visualization

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