OCSN 7

0.09 UTI

0.0

C_N

0.18

C_dens

0.25

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 21

Radius (P>50% members) 38.0 [arcmin]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.18 Very loose
C_C3 0.25 Low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

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

Overview

ℹ️

OCSN 7 is a sparse, very loose object of low C3 quality. Its parallax locates it at a very close distance, near 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 significant percentage of members with a later reported entry. See table with shared members information.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Close Low extinction Young

Data

🔍 Search references for OCSN 7 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	282.406	-7.211	2.295	1.139	-11.291	-7.589
Qin et al.	2023	282.13	-7.71	2.29	1.12	-11.15	-10.04

💡 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–	0.54	0.68	–	89	–	–	–	–
Qin et al.	2023	0.54	0.68	–	89	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Theia 711	68.0	282.21	-7.56	2.3	1.13	-11.4	-10.75	0.04

💡 Note: The % column shows the percentage of members that OCSN 7 shares with each listed object.

Visualization

ℹ️