Melotte 28

(Collinder 57; NGC 1746; MWSC 461; OCL 452; FSR 0822)

UTI: UCC Trust Index C_N C_dens C_C3 C_lit C_dup 0.76 1.0 0.75 0.69 1.0
C3	N_50	r_50
AB	117	4.1

Summary

Melotte 28 is a rich, very dense object of high C3 quality. It is located at a close distance from the Sun, below the mid-plane. It is moderately studied in the literature.

This object shares a large percentage of members with at least one entry reported in the same catalogue.

Search object in SciX | Simbad

Positions

Reference	RA	DEC	Plx	pmRA	pmDE	Rv
Dias et al. (2002)	75.958	23.77	–	-1.58	-3.24	2.0
Kharchenko et al. (2003)	75.96	23.77	–	-1.27	-3.87	–
Kharchenko et al. (2005)	75.96	23.77	–	-1.87	-3.07	2.0
Piskunov et al. (2007)	75.951	23.771	–	–	–	–
Kharchenko et al. (2007)	75.96	23.77	–	0.57	–	2.0
Piskunov et al. (2008)	75.951	23.771	–	–	–	–
Kharchenko et al. (2012)	76.14	23.83	–	-2.13	-4.22	2.0
Kharchenko et al. (2013)	76.14	23.83	–	-2.13	-4.22	2.0
Kharchenko et al. (2016)	76.131	23.83	–	–	–	–
Bica et al. (2019)	76.139	23.824	–	–	–	–
Just et al. (2023)	76.131	23.83	–	–	–	–
UCC	76.163	23.817	1.127	3.126	-3.497	5.784

Galactocentric position

How are the galactocentric plots generated?

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Estimated members

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Fundamental parameters

Reference	Values
Dias et al. (2002)	E(B-V)=0.3, Dist=800.0, Age=8.645
Kharchenko et al. (2003)	E(B-V)=0.3, Dist=420
Kharchenko et al. (2005)	E(B-V)=0.25, Dist=760, logt=8.19
Piskunov et al. (2007)	E(B-V)=0.25, Dist=760, logt=8.19, logM=2.869
Piskunov et al. (2008)	E(B-V)=0.25, Dist=760, logt=8.19, logM=3.313, logMA=2.893
Kharchenko et al. (2012)	E(B-V)=0.3, d=800.0, logt=8.645
Kharchenko et al. (2013)	E(B-V)=0.3, d=800.0, logt=8.64
Kharchenko et al. (2016)	E(B-V)=0.3, d=800.0, logt=8.64
Just et al. (2023)	logt=8.64, logmt=2.401

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
NGC 1758	100.0	76.18	23.82	1.11	3.12	-3.48	3.55	0.93