OCSN 49

0.01 UTI

0.25

C_N

0.3

C_dens

0.25

C_C3

0.0

C_lit

0.04

C_dup

C3 classification DB

Number of members (P>50%) 25

Radius (P>50% members) 65.0 [arcmin]

C_N 0.25 Poorly populated
C_dens 0.3 Loose
C_C3 0.25 Low quality
C_lit 0.0 Rarely studied
C_dup 0.04 Very likely duplicate

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

Overview

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OCSN 49 is a poorly populated, loose object of low C3 quality. Its parallax locates it at a very close distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, 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 Near-solar metallicity Intermediate age

Hunt & Reffert (2024)
Classified as a moving group.

Data

🔍 Search references for OCSN 49 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	–	90.601	45.07	4.633	-4.063	-7.835	-0.485
Zhang et al.	2024	89.917	45.496	–	–	–	–
Qin et al.	2023	90.55	45.26	4.64	-3.97	-7.64	-0.93

💡 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
Zhang et al.	2024	–	–	–	–	0.013*	–	–	–
Qin et al.	2023	0.21	0.09	–	708	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Theia 684	96.0	90.31	45.12	4.68	-4.1	-7.93	-0.55	0.24

💡 Note: The % column shows the percentage of members that OCSN 49 shares with each listed object.

Visualization

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