Collinder 107

(MWSC 943)

0.45 UTI

0.0

C_N

0.15

C_dens

0.12

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 22

Stellar density (N₅₀/rad) 0.7 [N/pc²]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.15 Very loose
C_C3 0.12 Very low 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

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Collinder 107 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the absorption, metallicity, and mass parameters (see Parameters). It is very well-studied in the literature.

Note: This object shares a significant percentage of members with at least one entry reported in the same catalogue. See table with shared members information.

Relatively close Moderate extinction Near-solar metallicity Very young

Liu et al. (2025)
Classified as primordial binary cluster 125 along with HSC_1629, and of multiple system 42 along with NGC_2244, Collinder_106 and HSC_1629.

Palma et al. (2025)
Part of multiple system G20, along with HSC_1629, Desvoivres_2, NGC_2244 and Collinder_106.

Piecka & Paunzen (2021)
Belongs to cluster aggregate 'Agg19' along with Collinder 106 and NGC 2244.

Cavallo et al. (2024)
Gold sample.

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

Data

🔍 Search references for Collinder 107 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–	99.255	4.904	0.614	-1.361	0.654	–
Liu et al.	2025	99.62	4.64	0.65	-2.43	-0.2	7.28
Almeida et al.	2025	99.231	4.972	–	–	–	–
Zhang et al.	2024	99.622	4.635	–	–	–	–
Hunt & Reffert	2024	99.622	4.635	0.649	-2.43	-0.202	7.284
Celli et al.	2024	99.203	4.972	–	–	–	–
Cavallo et al.	2024	99.576	4.402	0.655	–	–	–
He et al.	2023	99.612	4.565	0.657	-2.401	-0.177	8.14
Hunt & Reffert	2023	99.622	4.635	0.649	-2.43	-0.202	7.284
Just et al.	2023	99.618	4.637	–	–	–	–
Dias et al.	2021	99.231	4.972	0.617	-1.316	0.652	–
Cantat-Gaudin et al.	2020	99.203	4.972	0.617	-1.325	0.659	–
Zhong et al.	2020	99.203	4.972	–	-1.325	0.659	35.349
Cantat-Gaudin & Anders	2020	99.203	4.972	0.617	-1.325	0.659	–
Dias et al.	2019	99.204	4.972	0.617	-1.325	0.659	131.6
Soubiran et al.	2018	99.203	4.972	–	–	–	11.01
Cantat-Gaudin et al.	2018	99.203	4.972	0.617	-1.325	0.659	–
Kharchenko et al.	2016	99.618	4.637	–	–	–	–
Dias et al.	2014	99.425	4.733	–	0.37	-1.29	–
Kharchenko et al.	2013	99.625	4.635	–	-2.5	-0.26	21.6
Gozha et al.	2012	99.425	4.733	–	–	–	–
Piskunov et al.	2008	99.625	4.627	–	–	–	–
Kharchenko et al.	2007	99.42	4.73	–	0.15	–	17.73
van den Bergh	2006	99.625	4.633	–	–	–	–
Kharchenko et al.	2005	99.63	4.63	–	-2.58	-0.75	17.73
Dias et al.	2002	99.425	4.733	–	0.37	-1.29	12.31

💡 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–	1.47	1.29	2.35	15	-0.100	302	–	–
Liu et al.	2025	2.14	0.41	–	17	–	–	–	–
Almeida et al.	2025	1.47	1.47	–	15	–	727	–	–
Zhang et al.	2024	–	–	–	–	0.072⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	302⁽¹⁾	–	–
Celli et al.	2024	–	–	–	18	–	579	–	–
Cavallo et al.	2024	1.43	1.29	–	12	0.260	–	–	–
He et al.	2023	1.58	1.60	–	8	–	–	–	–
Hunt & Reffert	2023	1.40	1.35	2.35	15	–	–	–	–
Just et al.	2023	–	–	–	15	–	72	–	–
Dias et al.	2021	1.47	1.47	–	15	-0.100	–	–	–
Cantat-Gaudin et al.	2020	1.67	0.95	–	18	–	–	–	–
Zhong et al.	2020	1.45	1.29	–	7165	-0.274	–	–	–
Cantat-Gaudin & Anders	2020	1.55	–	–	–	–	–	–	–
Dias et al.	2019	1.33	1.27	–	14	-1.335	–	–	–
Soubiran et al.	2018	1.55	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	1.55	–	–	–	–	–	–	–
Kharchenko et al.	2016	1.45	1.29	–	15	–	–	–	–
Kharchenko et al.	2013	1.45	1.29	–	15	–	–	–	–
Gozha et al.	2012	1.74	–	–	10	–	98	–	–
Piskunov et al.	2008	1.45	1.24	–	11	–	–	–	–
van den Bergh	2006	1.74	1.67	–	10	–	–	–	–
Kharchenko et al.	2005	1.45	1.24	–	11	–	–	–	–
Dias et al.	2002	1.74	1.67	–	10	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Collinder 104	60.0	99.19	4.79	0.61	-1.42	0.6	36.18	0.74
CWWDL 14136	40.0	99.16	4.85	0.64	-1.43	0.63	–	0.04

💡 Note: The % column shows the percentage of members that Collinder 107 shares with each listed object.

Visualization

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