OCSN 23

0.52 UTI

0.85

C_N

1.0

C_dens

1.0

C_C3

0.0

C_lit

0.91

C_dup

C3 classification AA

Number of members (P>50%) 363

Radius (P>50% members) 62.7 [arcmin]

C_N 0.85 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.0 Rarely studied
C_dup 0.91 Very likely unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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OCSN 23 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 young cluster (see Parameters). It was recently reported 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, and a very small percentage with at least one entry reported in the same catalogue. See table with shared members information.

Very close Low extinction Young

Data

🔍 Search references for OCSN 23 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	–	305.131	48.625	2.863	3.161	1.974	-7.704
Qin et al.	2023	305.3	48.52	2.89	3.3	2.02	-7.69

💡 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]	Bfr	BSS
Qin et al.	2023	0.39	0.34	–	32	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
LISC-III 3723	52.6	304.16	46.65	2.92	3.51	1.72	-7.45	0.27
Theia 96	38.6	305.28	48.77	2.84	3.0	1.96	-7.96	0.0
RSG5	8.8	303.5	45.6	2.96	3.62	1.55	-7.39	0.89
OCSN 256	7.4	303.59	45.59	2.96	3.63	1.56	-7.39	0.01

💡 Note: The % column shows the percentage of members that OCSN 23 shares with each listed object.

Visualization

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