OC 0186

0.39 UTI

0.42

C_N

0.4

C_dens

1.0

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 42

Core radius and density 1.9 [pc], 2.0 [pc^-2]

C3 classification AA

C_N 0.42 Poorly populated
C_dens 0.4 Loose
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 0186 is a poorly populated, loose object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a metal-rich, young cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is rarely studied in the literature.

Relatively close Moderate extinction Metal-rich Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Data

🔍 Search references for OC 0186 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–	339.951	58.707	0.324	-2.629	-2.107	-40.248
Hunt & Reffert	2024	339.937	58.707	0.338	-2.639	-2.084	-40.216
Cavallo et al.	2024	339.956	58.695	0.337	–	–	–
Hunt & Reffert	2023	339.937	58.707	0.338	-2.639	-2.084	-40.216
Hao et al.	2022	339.975	58.703	0.324	-2.635	-2.11	-40.292

💡 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]	B_frac	BSS
UCC	99999–	2.74	2.74	1.51	97	0.661	935	–	–
Hunt & Reffert	2024	2.74	2.74	1.51	101	–	935⁽¹⁾	–	–
Cavallo et al.	2024	3.73	2.55	–	93	1.300	–	–	–
Hunt & Reffert	2023	2.74	2.74	1.51	101	–	–	–	–
Hao et al.	2022	–	5.12	–	63	0.022	–	–	–

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

Visualization

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