OCSN 320

(UPK 622)

0.55 UTI

0.75

C_N

1.0

C_dens

1.0

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 112

Stellar density (N₅₀/rad) 11.7 [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 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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OCSN 320 is a rich, very dense object of very high C3 quality. Its parallax locates it at a very close distance, above the mid-plane, affected by low extinction. It is catalogued as a very young cluster (see Parameters). It was recently reported in the literature.

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

Very close Low extinction Very young

Data

🔍 Search references for OCSN 320 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–	228.119	-44.136	6.814	-20.499	-21.893	4.7
Qin et al.	2023	227.95	-44.35	6.79	-20.4	-21.83	5.11

💡 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–	0.15	0.06	–	16	–	–	–	–
Qin et al.	2023	0.15	0.06	–	16	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
HSC 2733	88.4	227.97	-44.3	6.84	-20.59	-21.95	5.34	0.03

💡 Note: The % column shows the percentage of members that OCSN 320 shares with each listed object.

Visualization

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