Dolidze 21

0.12 UTI

0.0

C_N

0.01

C_dens

0.25

C_C3

0.16

C_lit

1.0

C_dup

N_m (P>50%) 13

Core radius and density 7.9 [pc], 0.05 [pc^-2]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.01 Very loose
C_C3 0.25 Low quality
C_lit 0.16 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 21 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large distance, well below the mid-plane, affected by high extinction. It is catalogued as an intermediate-age cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 9 years.

⚠️ 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.

Distant High extinction Intermediate age

Data

🔍 Search references for Dolidze 21 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–	81.896	7.081	0.199	0.709	-0.432	34.469
Sampedro et al.	2017	81.85	7.067	–	-0.05	0.37	–
Tadross	2014	81.85	7.067	–	–	–	–
Dias et al.	2014	81.85	7.067	–	0.17	0.53	–
Bukowiecki et al.	2011	81.912	7.117	–	–	–	–
Dias et al.	2002	81.85	7.067	–	0.17	0.53	–
Lynga	1987	81.85	7.073	–	–	–	–

💡 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–	3.6	3.82	–	178	–	183	–	–
Tadross	2014	1.45	1.74	–	200	–	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	183	–	–
Bukowiecki et al.	2011	3.65⁽¹⁾	3.82	–	178	–	–	–	–
Dias et al.	2002	3.60	3.94	–	178	–	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Visualization

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