ASCC 39

(MWSC 1261)

0.24 UTI

0.0

C_N

0.01

C_dens

0.12

C_C3

0.52

C_lit

1.0

C_dup

N_m (P>50%) 19

Core radius and density 10 [pc], 0.06 [pc^-2]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.01 Very loose
C_C3 0.12 Very low quality
C_lit 0.52 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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ASCC 39 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, below the mid-plane, affected by low extinction. It is catalogued as a massive, intermediate-age cluster (see Parameters). It is moderately studied in the literature.

(*): The parallax distance estimate (~3.45 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 Low extinction Massive Intermediate age

Data

🔍 Search references for ASCC 39 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–	113.227	-22.961	0.29	-2.427	3.178	70.709
Just et al.	2023	113.311	-22.948	–	–	–	–
Bica et al.	2019	113.247	-22.948	–	–	–	–
Dib et al.	2018	113.317	-22.95	–	–	–	–
Sampedro et al.	2017	113.25	-22.95	–	-2.17	0.73	–
Joshi et al.	2016	113.317	-22.95	–	–	–	–
Kharchenko et al.	2016	113.311	-22.948	–	–	–	–
Dias et al.	2014	113.25	-22.95	–	-2.22	0.75	–
Kharchenko et al.	2013	113.317	-22.95	–	-4.01	0.32	–
Piskunov et al.	2008	113.247	-22.948	–	–	–	–
Kharchenko et al.	2005	113.25	-22.95	–	-3.37	1.85	–
Dias et al.	2002	113.25	-22.95	–	-2.22	0.75	–

💡 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–	1.61	0.33	–	513	–	1182	–	–
Just et al.	2023	–	–	–	513	–	415	–	–
Dib et al.	2018	1.61	–	–	513	–	–	–	–
Joshi et al.	2016	1.61	0.66	–	513	–	1950	–	–
Kharchenko et al.	2016	1.61	0.66	–	513	–	–	–	–
Kharchenko et al.	2013	1.61	0.66	–	513	–	–	–	–
Piskunov et al.	2008	1.50	0.00	–	513	–	–	–	–
Kharchenko et al.	2005	1.50	0.00	–	513	–	–	–	–
Dias et al.	2002	1.50	0.00	–	513	–	–	–	–

Visualization

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