OCSN 304

0.02 UTI

0.58

C_N

0.93

C_dens

1.0

C_C3

0.0

C_lit

0.03

C_dup

N₅₀ (P>50% members) 67

Stellar density (N₅₀/rad) 4.7 [N/pc²]

C3 classification AA

C_N 0.58 Moderately populated
C_dens 0.93 Very dense
C_C3 1.0 Very high quality
C_lit 0.0 Rarely studied
C_dup 0.03 Very likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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OCSN 304 is a moderately populated, 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 an intermediate-age 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 Low extinction Intermediate age

Data

🔍 Search references for OCSN 304 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–	110.724	55.284	5.043	-2.844	-31.222	10.763
Qin et al.	2023	110.69	55.27	5.05	-2.93	-31.59	10.67

💡 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–	0.2	0.16	–	112	–	–	–	–
Qin et al.	2023	0.20	0.16	–	112	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
RSG2	97.0	110.72	55.28	5.04	-2.84	-31.21	10.89	0.64
CWNU 1128	67.2	110.61	55.28	5.04	-2.74	-31.14	11.02	0.0

💡 Note: The % column shows the percentage of members that OCSN 304 shares with each listed object.

Visualization

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