Collinder 109

(NGC 2262; MWSC 946; OCL 531; FSR 1055; FoF 81)

0.92 UTI

0.83

C_N

1.0

C_dens

0.75

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 326

Stellar density (N₅₀/rad) 47.5 [N/pc²]

C3 classification AB

C_N 0.83 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 1.0 Very well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

Collinder 109 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the mass parameter (see Parameters). It is very well-studied in the literature.

Note: This object shares a small percentage of members with 2 later reported entries. See table with shared members information.

Distant Moderate extinction Massive Near-solar metallicity Intermediate age

Almeida et al. (2025)
Mass determination: good fit. Isochrone match: intermediate fit.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Collinder 109 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	99.907	1.143	0.266	0.299	0.106	62.631
Li et al.	2025	99.905	1.147	0.223	0.264	0.114	–
Hu & Soubiran	2025	99.903	1.144	–	–	–	–
Almeida et al.	2025	99.903	1.151	–	–	–	–
Zhang et al.	2024	99.908	1.143	–	–	–	–
Hunt & Reffert	2024	99.908	1.143	0.267	0.298	0.106	62.055
Cavallo et al.	2024	99.904	1.144	0.269	–	–	–
Hunt & Reffert	2023	99.908	1.143	0.267	0.298	0.106	62.055
Almeida et al.	2023	99.901	1.149	–	–	–	–
Just et al.	2023	99.908	1.141	–	–	–	–
Dias et al.	2021	99.903	1.151	0.228	0.289	0.109	–
Cantat-Gaudin et al.	2020	99.905	1.147	0.223	0.264	0.114	–
Cantat-Gaudin & Anders	2020	99.905	1.147	0.223	0.264	0.114	–
Liu & Pang	2019	99.895	1.153	0.282	0.23	0.131	–
Bica et al.	2019	99.913	1.143	–	–	–	–
Cantat-Gaudin et al.	2018	99.905	1.147	0.223	0.264	0.114	–
Loktin & Popova	2017	99.915	1.143	–	0.303	-0.083	–
Kharchenko et al.	2016	99.908	1.141	–	–	–	–
Dias et al.	2014	99.908	1.143	–	-0.71	-0.76	–
Kharchenko et al.	2013	99.915	1.14	–	2.35	-0.06	–
Gozha et al.	2012	99.908	1.143	–	–	–	–
Dias et al.	2002	99.908	1.143	–	-0.71	-0.76	–

💡 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–	3.29	2.19	1.63	989	-0.139	1520	0.66	–
Li et al.	2025	3.25	2.68	–	725	-0.135	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.100⁽⁵⁾	–	–	–
Almeida et al.	2025	2.91	2.19	–	1030	–	2035	–	–
Zhang et al.	2024	–	–	–	–	-0.142⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	3923⁽¹⁾	–	–
Cavallo et al.	2024	3.09	2.38	–	676	0.140	–	–	–
Hunt & Reffert	2023	3.33	2.53	1.63	432	–	–	–	–
Almeida et al.	2023	2.82	2.29	–	962	-0.142	1004⁽¹⁾	0.66	–
Just et al.	2023	–	–	–	989	–	375	–	–
Dias et al.	2021	2.91	2.19	–	1030	-0.107	–	–	–
Cantat-Gaudin et al.	2020	3.55	1.67	–	646	–	–	–	–
Cantat-Gaudin & Anders	2020	3.97	–	–	–	–	–	–	–
Liu & Pang	2019	–	–	–	1290	0.000	–	–	–
Cantat-Gaudin et al.	2018	3.97	–	–	–	–	–	–	–
Loktin & Popova	2017	5.47	1.62	–	832	–	–	–	–
Kharchenko et al.	2016	2.51	1.94	–	989	–	–	–	–
Kharchenko et al.	2013	2.51	1.94	–	989	-0.400	–	–	–
Gozha et al.	2012	3.60	–	–	1000	-0.400	–	–	–
Dias et al.	2002	3.60	1.71	–	1000	-0.380	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
OC 0349	23.0	99.91	1.14	0.29	0.3	0.11	62.9	0.0
OC 0348	17.5	99.91	1.14	0.27	0.29	0.1	62.55	0.0

💡 Note: The % column shows the percentage of members that Collinder 109 shares with each listed object.

Visualization

ℹ️

1 2 3