Trumpler 4

(IC 2157; Collinder 80; OCL 465; FSR 0867; MWSC 722)

UCC G186.3+01.2a
C1	C2	C3	N_50	r_50
0.93	0.62	AB	56	3.1

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Positions

Reference	RA	DEC	Plx	pmRA	pmDE	Rv
Kharchenko et al. (2012)	91.207	24.07	–	-0.54	-3.01	–
Loktin & Popova (2017)	91.215	24.07	–	-0.172	-0.85	–
Bica et al. (2019)	91.2	24.077	–	–	–	–
Bossini et al. (2019)	91.183	24.091	–	–	–	–
Cantat-Gaudin et al. (2020)	91.183	24.091	0.448	0.959	-2.982	–
Dias et al. (2021)	91.186	24.084	0.442	0.966	-2.99	–
Jaehnig et al. (2021)	91.195	24.077	0.487	0.953	-2.981	–
Hunt & Reffert (2023)	91.201	24.087	0.474	0.978	-3.019	–
Cavallo et al. (2024)	91.184	24.088	0.475	–	–	–
UCC	91.188	24.105	0.46	0.961	-3.033	-27.386

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Estimated members

1 2 3

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Fundamental parameters

Reference	Values
Kharchenko et al. (2012)	e_bv=0.562, distance=2311, log_age=7.9
Loktin & Popova (2017)	E(B-V)=0.551, Dmod=11.388, logt=7.814
Bossini et al. (2019)	AV=1.507, Dist=11.909, logA=7.618, Fe/H=0.0
Cantat-Gaudin et al. (2020)	AVNN=1.1, DMNN=11.53, AgeNN=8.18
Dias et al. (2021)	Av=1.651, Dist=1885, logage=7.552, [Fe/H]=-0.098
Hunt & Reffert (2023)	AV50=1.414, diffAV50=0.598, MOD50=11.417, logAge50=7.872
Cavallo et al. (2024)	AV50=1.3, dMod50=11.5, logAge50=8.25, [Fe/H]50=0.53

Probable duplicates

Cluster	P (%)	RA	DEC	Plx	pmRA	pmDE	Rv
OC 0305	89	91.188	24.097	0.468	0.968	-3.04	–

Last modified: 2024-12-10