Saurer 6

(MWSC 3193; FSR 0180)

0.34 UTI

0.0

C_N

0.0

C_dens

0.62

C_C3

0.54

C_lit

1.0

C_dup

N_m (P>50%) 12

Core radius and density 10 [pc], 0.01 [pc^-2]

C3 classification AC

C_N 0.0 Sparse
C_dens 0.0 Very loose
C_C3 0.62 Intermediate quality
C_lit 0.54 Moderately studied
C_dup 1.0 Unique

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

Overview

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Saurer 6 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a large distance, above the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, old cluster (see Parameters). It is moderately studied in the literature.

⚠️ 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.

Very distant Moderate extinction Massive Near-solar metallicity Old

Perren et al. (2022)
The CMD shows a wide and short main sequence with the TO at approximately G=18 mag. The giant branch is quite scattered although the RC is evident. The high star density in the region may explain the main sequence widening. Frinchaboy 2002 used CCD VI photometry and found 2 Gyr and 9.3 kpc. ASteCA gives 1.4 Gyr and 9.2 kpc, in close agreement. WEBDA and OC02 report the same distance as Frinchaboy; MWSC gives a smaller 7.3 kpc.

Data

🔍 Search references for Saurer 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	99999–	297.768	32.23	0.124	-2.759	-4.505	-57.162
He et al.	2023	297.755	32.244	0.073	-2.548	-4.057	-80.41
Just et al.	2023	297.753	32.231	–	–	–	–
Perren et al.	2022	297.75	32.25	–	–	–	–
Bica et al.	2019	297.769	32.238	–	–	–	–
Dias et al.	2018	–	–	–	-2.09	-4.81	–
Sampedro et al.	2017	297.758	32.243	–	–	–	–
Kharchenko et al.	2016	297.753	32.231	–	–	–	–
Dias et al.	2014	297.758	32.243	–	-1.84	-1.38	–
Kharchenko et al.	2013	297.759	32.233	–	-3.95	-0.61	–
Bukowiecki et al.	2011	297.75	32.237	–	–	–	–
van den Bergh	2006	297.75	32.25	–	–	–	–
Dias et al.	2002	297.758	32.243	–	-2.08	-1.56	–

💡 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–	9.2	2.69	–	1585	-0.110	3664	0.52	–
He et al.	2023	8.71	2.90	–	1259	–	–	–	–
Just et al.	2023	–	–	–	1585	–	2128	–	–
Perren et al.	2022	9.20	2.97	–	1380	-0.110	5200	0.52	–
Kharchenko et al.	2016	7.33	2.69	–	1585	–	–	–	–
Kharchenko et al.	2013	7.33	2.69	–	1585	–	–	–	–
Bukowiecki et al.	2011	10.13⁽¹⁾	2.18	–	1413	–	–	–	–
van den Bergh	2006	9.33	2.43	–	1950	–	–	–	–
Dias et al.	2002	9.33	2.43	–	1950	–	–	–	–

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

Visualization

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