OCSN 1

0.42 UTI

0.57

C_N

0.9

C_dens

0.62

C_C3

0.0

C_lit

1.0

C_dup

C3 classification AC

Number of members (P>50%) 65

Radius (P>50% members) 88.2 [arcmin]

C_N 0.57 Moderately populated
C_dens 0.9 Very dense
C_C3 0.62 Intermediate 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 1 is a moderately populated, very dense object of intermediate C3 quality. Its parallax locates it at a very close distance, near 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 1 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	–	259.768	-24.908	6.735	-4.715	-21.591	-3.501
Qin et al.	2023	260.16	-24.86	6.73	-4.75	-21.64	-4.46

💡 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	0.15	0.06	–	16	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Theia 67	84.6	259.96	-24.96	6.75	-4.61	-21.65	-3.45	0.0

💡 Note: The % column shows the percentage of members that OCSN 1 shares with each listed object.

Visualization

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