OCSN 202

(Huluwa 5)

0.09 UTI

0.75

C_N

1.0

C_dens

1.0

C_C3

0.0

C_lit

0.16

C_dup

N₅₀ (P>50% members) 105

Stellar density (N₅₀/rad) 17.0 [N/pc²]

C3 classification AA

C_N 0.75 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.0 Rarely studied
C_dup 0.16 Likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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OCSN 202 is a rich, very dense object of very high C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as a very young cluster (see Parameters). It was recently reported in the literature.

⚠️ Warning: This is 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 Low extinction Very young

Data

🔍 Search references for OCSN 202 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–	126.927	-34.738	2.808	-6.958	10.896	13.129
Qin et al.	2023	126.93	-34.79	2.81	-6.98	10.84	22.37

💡 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–	0.39	0.22	–	8	–	–	–	–
Qin et al.	2023	0.39	0.22	–	8	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Theia 31	83.8	126.96	-34.76	2.8	-6.94	10.85	21.02	0.54

💡 Note: The % column shows the percentage of members that OCSN 202 shares with each listed object.

Visualization

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