Collinder 111

(MWSC 944; OCL 505)

0.18 UTI

0.0

C_N

0.07

C_dens

0.12

C_C3

0.35

C_lit

1.0

C_dup

N₅₀ (P>50% members) 17

Stellar density (N₅₀/rad) 0.3 [N/pc²]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.07 Very loose
C_C3 0.12 Very low quality
C_lit 0.35 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Collinder 111 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by low extinction. It is catalogued as a low-mass, young cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~3.64 kpc) differs significantly from the median photometric distance (~1.19 kpc).

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close Low extinction Low mass Young

Data

🔍 Search references for Collinder 111 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–	99.694	6.936	0.275	-0.989	-0.078	100.121
Just et al.	2023	99.701	6.916	–	–	–	–
Bica et al.	2019	99.663	6.908	–	–	–	–
Loktin & Popova	2017	99.675	6.901	–	-0.954	-0.431	32.0
Kharchenko et al.	2016	99.701	6.916	–	–	–	–
Dias et al.	2014	99.675	6.9	–	1.19	0.16	–
Kharchenko et al.	2013	99.708	6.915	–	-2.06	-1.6	32.0

💡 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–	1.19	0.19	–	50	–	15	–	–
Just et al.	2023	–	–	–	50	–	15	–	–
Loktin & Popova	2017	2.64	1.19	–	1445	–	–	–	–
Kharchenko et al.	2016	1.19	0.19	–	50	–	–	–	–
Kharchenko et al.	2013	1.19	0.19	–	50	–	–	–	–

Visualization

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