Saurer 4

(MWSC 2009)

0.23 UTI

0.0

C_N

0.01

C_dens

0.25

C_C3

0.44

C_lit

1.0

C_dup

C3 classification CC

Number of members (P>50%) 7

Radius (P>50% members) 4.6 [arcmin]

C_N 0.0 Sparse
C_dens 0.01 Very loose
C_C3 0.25 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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Saurer 4 is a sparse, very loose object of low C3 quality. Its parallax locates it at a very large^* distance, below the mid-plane, affected by high extinction. It is catalogued as a low-mass, old cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~10.72 kpc) differs significantly from the median photometric distance (~6.19 kpc).

Very distant High extinction Low mass Old

Data

🔍 Search references for Saurer 4 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	–	183.5	-63.59	0.093	-7.218	0.815	9.537
He et al.	2023	183.509	-63.592	0.076	-6.893	0.798	8.81
Just et al.	2023	183.494	-63.586	–	–	–	–
Bica et al.	2019	183.515	-63.591	–	–	–	–
Kharchenko et al.	2016	183.494	-63.586	–	–	–	–
Kharchenko et al.	2013	183.502	-63.59	–	-7.38	-0.61	–
van den Bergh	2006	183.525	-63.6	–	–	–	–
Dias et al.	2002	183.512	-63.593	–	-4.98	0.59	–

💡 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
He et al.	2023	7.59	3.70	–	1585	–	–	–	–
Just et al.	2023	–	–	–	1514	–	34	–	–
Kharchenko et al.	2016	5.18	4.13	–	1514	–	–	–	–
Kharchenko et al.	2013	5.18	4.13	–	1514	–	–	–	–
van den Bergh	2006	6.19	3.84	–	1514	–	–	–	–
Dias et al.	2002	6.19	3.84	–	1514	–	–	–	–

Visualization

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