Collinder 109

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

UTI: UCC Trust Index C_N C_dens C_C3 C_lit C_dup 0.83 1.0 0.75 1.0 1.0 Collinder 109 is a rich, very dense object of high C3 quality. It is very well-studied in the literature. This object shares a small percentage of members with 2 later reported entries.
C3	N_50	r_50
AB	326	2.4

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Positions

Reference	RA	DEC	Plx	pmRA	pmDE	Rv
Dias et al. (2002)	99.908	1.143	–	-0.71	-0.76	–
Kharchenko et al. (2012)	99.915	1.14	–	2.35	-0.06	–
Loktin & Popova (2017)	99.915	1.143	–	0.303	-0.083	–
Bica et al. (2019)	99.913	1.143	–	–	–	–
Liu & Pang (2019)	99.895	1.153	0.282	0.23	0.131	–
Cantat-Gaudin et al. (2020)	99.905	1.147	0.223	0.264	0.114	–
Dias et al. (2021)	99.903	1.151	0.228	0.289	0.109	–
Hunt & Reffert (2023)	99.908	1.143	0.267	0.298	0.106	62.055
Cavallo et al. (2024)	99.904	1.144	0.269	–	–	–
Hunt & Reffert (2024)	99.908	1.143	0.267	0.298	0.106	62.055
Hu & Soubiran (2025)	99.903	1.144	–	–	–	–
UCC	99.907	1.143	0.266	0.299	0.106	62.631

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Estimated members

1 2 3

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Fundamental parameters

Reference	Values
Dias et al. (2002)	E(B-V)=0.55, Dist=3600.0, Age=9.0, [Fe/H]=-0.38
Kharchenko et al. (2012)	e_bv=0.625, distance=2511, log_age=8.995, metallicity=-0.4
Loktin & Popova (2017)	E(B-V)=0.523, Dmod=13.69, logt=8.92
Liu & Pang (2019)	Age=1.29, Z=0.0
Cantat-Gaudin et al. (2020)	AVNN=1.67, DMNN=12.75, AgeNN=8.81
Dias et al. (2021)	Av=2.185, Dist=2908, logage=9.013, [Fe/H]=-0.107
Hunt & Reffert (2023)	AV50=2.527, diffAV50=1.634, MOD50=12.615, logAge50=8.635
Cavallo et al. (2024)	AV50=2.38, dMod50=12.45, logAge50=8.83, [Fe/H]50=0.14
Hunt & Reffert (2024)	MassJ=3923.36
Hu & Soubiran (2025)	MA22=-0.1, MA23f=-0.43, MA23g=-0.21, MZ23=-0.2, MK24=-0.26, MF24=-0.23

Search coordinates in Bayestar19

Cluster region

Objects with shared members

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