OC 0256

0.03 UTI

0.0

C_N

0.19

C_dens

0.5

C_C3

0.0

C_lit

0.24

C_dup

C3 classification BB

Number of members (P>50%) 22

Radius (P>50% members) 6.5 [arcmin]

C_N 0.0 Sparse
C_dens 0.19 Very loose
C_C3 0.5 Intermediate quality
C_lit 0.0 Rarely studied
C_dup 0.24 Likely duplicate

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

Overview

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OC 0256 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a metal-rich, very young cluster (see Parameters). It is rarely studied in the literature.

⚠️ Warning: This is 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 Metal-rich Very young

Data

🔍 Search references for OC 0256 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	–	42.978	56.76	0.396	0.399	-1.292	-64.951
Hao et al.	2022	42.937	56.739	0.398	0.416	-1.292	–

💡 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	–	1.03	–	1	0.611	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 1244	76.0	42.99	56.84	0.39	0.37	-1.27	–	0.31
CWNU 473	52.0	42.93	56.82	0.39	0.37	-1.27	-64.95	0.01
CWWDL 13371	36.0	42.85	56.89	0.41	0.32	-1.26	–	0.12

💡 Note: The % column shows the percentage of members that OC 0256 shares with each listed object.

Visualization

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