SAI 49

(MWSC 542)

0.15 UTI

0.0

C_N

0.05

C_dens

0.12

C_C3

0.29

C_lit

1.0

C_dup

N_m (P>50%) 21

Core radius and density 2.6 [pc], 0.2 [pc^-2]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.05 Very loose
C_C3 0.12 Very low quality
C_lit 0.29 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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SAI 49 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, well above the mid-plane, affected by moderate extinction. It is catalogued as an old cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~4.90 kpc) differs significantly from the median photometric distance (~3.20 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.

Distant Moderate extinction Old

Data

🔍 Search references for SAI 49 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–	81.573	50.751	0.204	0.082	-1.561	-71.335
Just et al.	2023	81.596	50.79	–	–	–	–
Bica et al.	2019	81.61	50.786	–	–	–	–
Dias et al.	2018	–	–	–	0.95	-2.18	–
Loktin & Popova	2017	81.6	50.79	–	0.338	-0.763	–
Sampedro et al.	2017	81.604	50.784	–	-1.62	-1.21	–
Kharchenko et al.	2016	81.596	50.79	–	–	–	–
Dias et al.	2014	81.604	50.784	–	-0.78	-1.8	–
Kharchenko et al.	2013	81.607	50.79	–	0.29	-1.59	–
Kharchenko et al.	2012	81.607	50.79	–	0.29	-1.59	–
Glushkova et al.	2010	81.604	50.784	–	–	–	–
Dias et al.	2002	81.604	50.784	–	-0.78	-1.8	–

💡 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–	3.2	1.595	–	1413	–	130	–	–
Just et al.	2023	–	–	–	1413	–	130	–	–
Loktin & Popova	2017	4.09	1.45	–	1660	–	–	–	–
Kharchenko et al.	2016	3.20	1.71	–	1413	–	–	–	–
Kharchenko et al.	2013	3.20	1.71	–	1413	–	–	–	–
Kharchenko et al.	2012	3.20	1.71	–	1413	–	–	–	–
Glushkova et al.	2010	2.72	1.48	–	1122	–	–	–	–
Dias et al.	2002	2.72	1.48	–	1122	–	–	–	–

Visualization

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