Dolidze 9

(MWSC 3337)

0.22 UTI

0.26

C_N

0.12

C_dens

0.25

C_C3

0.23

C_lit

1.0

C_dup

N_m (P>50%) 26

Core radius and density 1.3 [pc], 0.6 [pc^-2]

C3 classification DB

C_N 0.26 Poorly populated
C_dens 0.12 Very loose
C_C3 0.25 Low quality
C_lit 0.23 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Dolidze 9 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a low-mass, intermediate-age cluster (see Parameters). It is rarely studied in the literature.

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

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close Moderate extinction Low mass Intermediate age

Data

🔍 Search references for Dolidze 9 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–	306.19	41.937	0.817	-3.682	-8.321	-2.608
Just et al.	2023	306.416	41.95	–	–	–	–
Dib et al.	2018	306.42	41.953	–	–	–	–
Loktin & Popova	2017	306.42	41.933	–	-0.95	-1.089	–
Joshi et al.	2016	306.42	41.953	–	–	–	–
Kharchenko et al.	2016	306.416	41.95	–	–	–	–
Tadross	2014	306.425	41.933	–	–	–	–
Kharchenko et al.	2013	306.42	41.953	–	-3.28	-3.56	–
Dias et al.	2002	306.425	41.933	–	4.2	-11.71	–
Lynga	1987	306.412	41.93	–	–	–	–

💡 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–	1.06	2.63	–	100	–	14	–	–
Just et al.	2023	–	–	–	100	–	14	–	–
Dib et al.	2018	1.06	–	–	100	–	–	–	–
Loktin & Popova	2017	1.11	1.49	–	81	–	–	–	–
Joshi et al.	2016	1.06	2.63	–	100	–	–	–	–
Kharchenko et al.	2016	1.06	2.63	–	100	–	–	–	–
Tadross	2014	0.87	2.52	–	20	–	–	–	–
Kharchenko et al.	2013	1.06	2.63	–	100	–	–	–	–
Dias et al.	2002	1.06	2.63	–	100	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 142	96.2	305.83	41.69	0.82	-3.64	-8.36	0.77	0.06
Collinder 421	92.3	305.83	41.69	0.82	-3.64	-8.37	-0.09	0.9

💡 Note: The % column shows the percentage of members that Dolidze 9 shares with each listed object.

Visualization

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