OCSN 13

0.33 UTI

0.79

C_N

1.0

C_dens

1.0

C_C3

0.0

C_lit

0.6

C_dup

C3 classification AA

Number of members (P>50%) 210

Radius (P>50% members) 17.4 [arcmin]

C_N 0.79 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.0 Rarely studied
C_dup 0.6 Likely unique

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

Overview

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OCSN 13 is a rich, very dense object of very high 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 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 Very young

Data

🔍 Search references for OCSN 13 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	–	291.746	21.107	2.002	1.546	-6.639	-10.02
Qin et al.	2023	291.75	21.1	2.0	1.43	-6.47	-10.37

💡 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	0.59	0.46	–	8	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
OC 0083	40.5	291.76	21.1	1.99	1.58	-6.74	-8.47	0.54
OC 0081	23.3	291.8	20.88	2.01	1.65	-6.78	-11.01	0.5
Theia 38	11.9	291.82	21.14	2.02	1.23	-6.4	19.11	0.0

💡 Note: The % column shows the percentage of members that OCSN 13 shares with each listed object.

Visualization

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