OCSN 30

0.19 UTI

0.53

C_N

0.37

C_dens

0.75

C_C3

0.0

C_lit

0.57

C_dup

C3 classification AB

Number of members (P>50%) 56

Radius (P>50% members) 39.4 [arcmin]

C_N 0.53 Moderately populated
C_dens 0.37 Loose
C_C3 0.75 High quality
C_lit 0.0 Rarely studied
C_dup 0.57 Likely unique

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

Overview

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OCSN 30 is a moderately populated, loose object of high C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as an intermediate-age cluster (see Parameters). It was recently reported in the literature.

Note: This is likely a unique object, which shares a moderate percentage of members with at least one previously reported entry. See table with shared members information.

Close Low extinction Intermediate age

Data

🔍 Search references for OCSN 30 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	–	323.814	53.282	2.096	8.913	6.503	-16.601
Qin et al.	2023	323.91	53.32	2.1	8.83	6.51	-16.38

💡 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	0.67	0.87	–	398	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Theia 248	42.9	324.03	53.3	2.09	8.98	6.47	-14.96	0.3

💡 Note: The % column shows the percentage of members that OCSN 30 shares with each listed object.

Visualization

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