ASCC 70

(MWSC 2010; Alessi 38)

0.23 UTI

0.41

C_N

0.03

C_dens

0.12

C_C3

0.29

C_lit

1.0

C_dup

N_m (P>50%) 41

Core radius and density 5.0 [pc], 0.1 [pc^-2]

C3 classification DC

C_N 0.41 Poorly populated
C_dens 0.03 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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ASCC 70 is a poorly populated, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, below the mid-plane, affected by moderate extinction. It is catalogued as an extremely massive, very young cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~4.99 kpc) differs significantly from the median photometric distance (~2.70 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 Extremely massive Very young

Bica et al. (2019)
List of clusters and alike reported by B. Alessi.

Data

🔍 Search references for ASCC 70 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–	183.722	-64.451	0.201	-7.863	1.097	-13.877
Just et al.	2023	183.696	-64.396	–	–	–	–
Bica et al.	2019	183.748	-64.424	–	–	–	–
Sampedro et al.	2017	183.75	-64.43	–	-5.1	1.45	–
Kharchenko et al.	2016	183.696	-64.396	–	–	–	–
Dias et al.	2014	183.75	-64.43	–	-4.99	1.2	–
Kharchenko et al.	2013	183.705	-64.4	–	-6.0	0.31	-7.8
Gozha et al.	2012	183.75	-64.43	–	–	–	–
Piskunov et al.	2008	183.748	-64.424	–	–	–	–
Kharchenko et al.	2007	183.75	-64.43	–	0.3	–	-7.75
Kharchenko et al.	2005	183.75	-64.43	–	-5.55	-0.32	-7.75
Dias et al.	2002	183.75	-64.43	–	-4.99	1.2	-10.44

💡 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–	2.7	1.1	–	8	–	20140	–	–
Just et al.	2023	–	–	–	8	–	3126	–	–
Kharchenko et al.	2016	2.65	1.48	–	8	–	–	–	–
Kharchenko et al.	2013	2.65	1.48	–	8	–	–	–	–
Gozha et al.	2012	2.70	–	–	8	–	37154	–	–
Piskunov et al.	2008	2.70	1.10	–	8	–	–	–	–
Kharchenko et al.	2005	2.70	1.10	–	8	–	–	–	–
Dias et al.	2002	2.70	1.10	–	8	–	–	–	–

Visualization

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