ASCC 54

(MWSC 1709)

0.26 UTI

0.0

C_N

0.01

C_dens

0.25

C_C3

0.52

C_lit

1.0

C_dup

N_m (P>50%) 17

Core radius and density 10 [pc], 0.05 [pc^-2]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.01 Very loose
C_C3 0.25 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 54 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate^* distance, near the mid-plane, affected by low extinction. It is catalogued as an intermediate-age cluster (see Parameters). It is moderately studied in the literature.

(*): The parallax distance estimate (~3.64 kpc) differs significantly from the median photometric distance (~1.75 kpc).

Note: This object shares a small percentage of members with a later reported entry. See table with shared members information.

⚠️ 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 Intermediate age

Data

🔍 Search references for ASCC 54 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–	146.191	-54.427	0.275	-4.864	3.415	9.809
Just et al.	2023	146.192	-54.431	–	–	–	–
Bica et al.	2019	146.229	-54.44	–	–	–	–
Dib et al.	2018	146.197	-54.435	–	–	–	–
Sampedro et al.	2017	146.192	-54.44	–	-3.56	0.09	–
Joshi et al.	2016	146.197	-54.435	–	–	–	–
Kharchenko et al.	2016	146.192	-54.431	–	–	–	–
Dias et al.	2014	146.192	-54.44	–	-3.73	0.14	–
Kharchenko et al.	2013	146.197	-54.435	–	-8.17	1.75	–
Piskunov et al.	2008	146.191	-54.435	–	–	–	–
Kharchenko et al.	2005	146.19	-54.44	–	-7.73	1.08	–
Dias et al.	2002	146.192	-54.44	–	-7.73	1.08	–

💡 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–	1.75	0.245	–	733	–	417	–	–
Just et al.	2023	–	–	–	733	–	284	–	–
Dib et al.	2018	1.75	–	–	733	–	–	–	–
Joshi et al.	2016	1.75	0.33	–	733	–	550	–	–
Kharchenko et al.	2016	1.75	0.33	–	733	–	–	–	–
Kharchenko et al.	2013	1.75	0.33	–	733	–	–	–	–
Piskunov et al.	2008	1.20	0.16	–	692	–	–	–	–
Kharchenko et al.	2005	1.20	0.16	–	692	–	–	–	–
Dias et al.	2002	1.20	0.16	–	692	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 1837	24.0	146.09	-54.67	0.33	-4.91	3.43	6.08	0.07

💡 Note: The % column shows the percentage of members that ASCC 54 shares with each listed object.

Visualization

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