Basel 6

(MWSC 3257)

0.25 UTI

0.0

C_N

0.02

C_dens

0.38

C_C3

0.44

C_lit

1.0

C_dup

C3 classification BC

Number of members (P>50%) 17

Radius (P>50% members) 5.3 [arcmin]

C_N 0.0 Sparse
C_dens 0.02 Very loose
C_C3 0.38 Low quality
C_lit 0.44 Poorly studied
C_dup 1.0 Unique

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

Overview

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Basel 6 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large^* distance, above the mid-plane, affected by moderate extinction. It is catalogued as an intermediate-age cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~8.12 kpc) differs significantly from the median photometric distance (~1.61 kpc).

⚠️ 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 Intermediate age

Data

🔍 Search references for Basel 6 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	–	301.683	38.371	0.123	-3.166	-5.315	-54.19
Just et al.	2023	301.668	38.363	–	–	–	–
Loktin & Popova	2017	301.695	38.35	–	-1.51	-0.717	–
Kharchenko et al.	2016	301.668	38.363	–	–	–	–
Dias et al.	2014	301.7	38.35	–	-2.21	-2.99	–
Kharchenko et al.	2013	301.672	38.365	–	-5.17	-1.98	–
van den Bergh	2006	301.7	38.35	–	–	–	–
Dias et al.	2002	301.7	38.35	–	-2.21	-2.99	–

💡 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
Just et al.	2023	–	–	–	1288	–	993	–	–
Loktin & Popova	2017	1.61	1.78	–	118	–	–	–	–
Kharchenko et al.	2016	3.11	1.81	–	1288	–	–	–	–
Kharchenko et al.	2013	3.11	1.81	–	1288	–	–	–	–
van den Bergh	2006	1.55	1.80	–	95	–	–	–	–
Dias et al.	2002	1.55	1.80	–	95	–	–	–	–

Visualization

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