Collinder 70

0.41 UTI

0.38

C_N

0.12

C_dens

0.38

C_C3

0.6

C_lit

1.0

C_dup

C3 classification BC

Number of members (P>50%) 38

Radius (P>50% members) 6.5 [arcmin]

C_N 0.38 Poorly populated
C_dens 0.12 Very loose
C_C3 0.38 Low quality
C_lit 0.6 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Collinder 70 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a moderate^* distance, well below the mid-plane, affected by low extinction. It is catalogued as a massive, near-solar metallicity, very young cluster (see Parameters). It is moderately studied in the literature, with no articles listed in the last 6 years.

(*): The parallax distance estimate (~4.22 kpc) differs significantly from the median photometric distance (~0.39 kpc).

Very close Low extinction Massive Near-solar metallicity Very young

Data

🔍 Search references for Collinder 70 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	–	83.896	-1.115	0.237	0.947	-0.246	41.52
Donor et al.	2020	83.948	-0.88	–	1.77	-0.92	20.3
Loktin & Popova	2017	83.88	-1.099	–	0.15	-0.7	19.9
Dias et al.	2014	83.875	-1.1	–	-0.17	-1.59	–
Gozha et al.	2012	83.875	-1.1	–	–	–	–
Piskunov et al.	2008	83.876	-1.1	–	–	–	–
Kharchenko et al.	2007	83.88	-1.1	–	1.5	–	19.87
Piskunov et al.	2007	83.876	-1.1	–	–	–	–
van den Bergh	2006	83.875	-1.1	–	–	–	–
Kharchenko et al.	2005	83.88	-1.1	–	0.36	-0.68	19.49
Kharchenko et al.	2003	83.74	-0.81	–	-0.84	0.9	–

💡 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]	Bfr	BSS
Donor et al.	2020	–	–	–	–	-0.100	–	–	–
Loktin & Popova	2017	0.38	0.13	–	10	–	–	–	–
Gozha et al.	2012	0.39	–	–	10	–	2818	–	–
Piskunov et al.	2008	0.39	0.12	–	5	–	3648*	–	–
Piskunov et al.	2007	0.39	0.12	–	5	–	2023	–	–
van den Bergh	2006	0.39	0.12	–	10	–	–	–	–
Kharchenko et al.	2005	0.39	0.12	–	5	–	–	–	–
Kharchenko et al.	2003	0.39	0.12	–	–	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Visualization

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