ASCC 122

(MWSC 3637)

0.22 UTI

0.0

C_N

0.05

C_dens

0.25

C_C3

0.4

C_lit

1.0

C_dup

N₅₀ (P>50% members) 23

Stellar density (N₅₀/rad) 0.2 [N/pc²]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.05 Very loose
C_C3 0.25 Low quality
C_lit 0.4 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 122 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large^* distance, well below the mid-plane, affected by low extinction. It is catalogued as a massive, very young cluster (see Parameters). It is poorly studied in the literature, with no articles listed in the last 7 years.

(*): The parallax distance estimate (~5.36 kpc) differs significantly from the median photometric distance (~0.70 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.

Close Low extinction Massive Very young

Data

🔍 Search references for ASCC 122 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–	338.321	39.62	0.187	-2.951	-3.136	–
Bica et al.	2019	338.306	39.611	–	–	–	–
Dias et al.	2014	338.308	39.61	–	-2.05	-3.07	–
Gozha et al.	2012	338.308	39.61	–	–	–	–
Piskunov et al.	2008	338.306	39.611	–	–	–	–
Kharchenko et al.	2007	338.31	39.61	–	0.72	–	-6.12
Kharchenko et al.	2005	338.31	39.61	–	-0.29	-4.19	-8.17
Dias et al.	2002	338.308	39.61	–	-0.77	-5.05	-6.51

💡 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–	0.7	0.31	–	10	–	2818	–	–
Gozha et al.	2012	0.70	–	–	10	–	2818	–	–
Piskunov et al.	2008	0.70	0.31	–	10	–	–	–	–
Kharchenko et al.	2005	0.70	0.31	–	10	–	–	–	–
Dias et al.	2002	0.70	0.31	–	10	–	–	–	–

Visualization

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