OC 0081

0.50 UTI

0.5

C_N

1.0

C_dens

1.0

C_C3

0.0

C_lit

1.0

C_dup

C3 classification AA

Number of members (P>50%) 50

Radius (P>50% members) 13.5 [arcmin]

C_N 0.5 Moderately populated
C_dens 1.0 Very dense
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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OC 0081 is a moderately populated, very dense object of very high C3 quality. Its parallax locates it at a very close^* distance, near the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, very young cluster (see Parameters). It is rarely studied in the literature.

(*): The parallax distance estimate (~0.50 kpc) differs significantly from the median photometric distance (~0.90 kpc).

Note: This object shares a significant percentage of members with at least one entry reported in the same catalogue. See table with shared members information.

Close High extinction Near-solar metallicity Very young

Data

🔍 Search references for OC 0081 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	–	291.803	20.882	2.015	1.653	-6.781	-11.01
Wei et al.	2025	291.923	20.682	2.006	1.661	-6.856	–
Hao et al.	2022	291.866	20.8	2.038	1.702	-6.725	9.593

💡 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
Wei et al.	2025	0.90	2.39	–	13	0.250	156	0.52	–
Hao et al.	2022	–	4.85	–	3	0.611	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
OCSN 13	98.0	291.75	21.11	2.0	1.55	-6.64	-10.02	0.33
OC 0083	60.0	291.76	21.1	1.99	1.58	-6.74	-8.47	0.54

💡 Note: The % column shows the percentage of members that OC 0081 shares with each listed object.

Visualization

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