OCSN 18

0.29 UTI

0.0

C_N

0.45

C_dens

1.0

C_C3

0.0

C_lit

1.0

C_dup

C3 classification AA

Number of members (P>50%) 21

Radius (P>50% members) 28.2 [arcmin]

C_N 0.0 Sparse
C_dens 0.45 Loose
C_C3 1.0 Very high quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

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

Overview

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OCSN 18 is a sparse, loose 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 object shares a very small percentage of members 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 18 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	–	282.143	34.374	2.691	0.735	-3.155	-17.534
Qin et al.	2023	282.05	34.27	2.69	0.75	-3.14	1.05

💡 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	0.41	0.22	–	28	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
OCSN 16	4.0	283.65	32.19	2.7	1.17	-3.57	-15.94	0.45

💡 Note: The % column shows the percentage of members that OCSN 18 shares with each listed object.

Visualization

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