OC 0021

0.33 UTI

0.52

C_N

1.0

C_dens

1.0

C_C3

0.0

C_lit

0.66

C_dup

C3 classification AA

Number of members (P>50%) 55

Radius (P>50% members) 3.1 [arcmin]

C_N 0.52 Moderately populated
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.0 Rarely studied
C_dup 0.66 Likely unique

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

Overview

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OC 0021 is a moderately populated, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by high extinction. It is catalogued as a metal-rich, very young cluster (see Parameters). It is rarely studied 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.

High extinction Metal-rich Very young

Data

🔍 Search references for OC 0021 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	–	274.35	-19.09	0.553	0.677	-2.411	–
Hao et al.	2022	274.358	-19.09	0.549	0.642	-2.426	–

💡 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	–	3.22	–	16	0.611	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Turner 3	34.5	274.37	-18.95	0.57	0.52	-2.47	-45.67	0.79

💡 Note: The % column shows the percentage of members that OC 0021 shares with each listed object.

Visualization

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