OC 0391

0.00 UTI

0.44

C_N

1.0

C_dens

0.75

C_C3

0.0

C_lit

0.0

C_dup

N₅₀ (P>50% members) 44

Stellar density (N₅₀/rad) 23.5 [N/pc²]

C3 classification AB

C_N 0.44 Poorly populated
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.0 Rarely studied
C_dup 0.0 Very likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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OC 0391 is a poorly populated, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is rarely studied 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.

Low extinction Near-solar metallicity Intermediate age

Data

🔍 Search references for OC 0391 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	99999–	109.451	-15.627	0.979	0.406	5.55	27.507
Hao et al.	2022	109.454	-15.653	1.051	0.424	5.58	–

💡 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–	–	0.77	–	794	0.051	–	–	–
Hao et al.	2022	–	0.77	–	794	0.051	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Melotte 64	100.0	109.44	-15.63	0.92	0.38	5.63	27.69	1.0
HSC 1815	15.9	109.44	-15.78	1.1	0.49	5.45	–	0.02

💡 Note: The % column shows the percentage of members that OC 0391 shares with each listed object.

Visualization

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