OC 0305

0.00 UTI

0.36

C_N

1.0

C_dens

1.0

C_C3

0.0

C_lit

0.0

C_dup

C3 classification AA

Number of members (P>50%) 36

Radius (P>50% members) 2.3 [arcmin]

C_N 0.36 Poorly populated
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.0 Rarely studied
C_dup 0.0 Very likely duplicate

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

Overview

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OC 0305 is a poorly populated, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate 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.

Moderate extinction Near-solar metallicity Intermediate age

Data

🔍 Search references for OC 0305 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	–	91.195	24.094	0.471	0.968	-2.99	–
Hao et al.	2022	91.192	24.083	0.523	1.041	-2.942	–

💡 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
Hao et al.	2022	–	1.68	–	251	0.169	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Trumpler 4	100.0	91.18	24.1	0.46	0.96	-2.99	-27.39	0.9

💡 Note: The % column shows the percentage of members that OC 0305 shares with each listed object.

Visualization

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