OC 0011

0.60 UTI

0.88

C_N

1.0

C_dens

1.0

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 451

Core radius and density 1.0 [pc], 36 [pc^-2]

C3 classification AA

C_N 0.88 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.06 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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OC 0011 is a rich, 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 very massive, near-solar metallicity, old cluster (see Parameters). It is rarely studied in the literature.

Note: This object shares a very small percentage of members with a later reported entry. See table with shared members information.

Relatively close High extinction Very massive Near-solar metallicity Old

Cavallo et al. (2024)
Bronze sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.12 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.12 (50th percentile).

Data

🔍 Search references for OC 0011 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–	272.992	-22.964	0.614	0.46	0.81	12.11
Hunt & Reffert	2024	272.993	-22.971	0.615	0.473	0.794	11.477
Cavallo et al.	2024	272.982	-22.963	0.615	–	–	–
Hunt & Reffert	2023	272.993	-22.971	0.615	0.473	0.794	11.477
Hao et al.	2022	272.989	-22.971	0.611	0.452	0.806	11.413

💡 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–	1.54	3.63	3.03	1323	0.044	8978	–	–
Hunt & Reffert	2024	1.54	3.33	3.03	1388	–	8978⁽¹⁾	–	–
Cavallo et al.	2024	1.66	3.93	–	832	-0.030	–	–	–
Hunt & Reffert	2023	1.54	3.33	3.03	1387	–	–	–	–
Hao et al.	2022	–	4.79	–	1259	0.119	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Theia 1927	0.9	273.02	-22.91	0.81	0.27	0.74	12.18	0.19

💡 Note: The % column shows the percentage of members that OC 0011 shares with each listed object.

Visualization

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