ASCC 55

(MWSC 1724)

0.24 UTI

0.0

C_N

0.04

C_dens

0.12

C_C3

0.52

C_lit

1.0

C_dup

N_m (P>50%) 16

Core radius and density 4.1 [pc], 0.2 [pc^-2]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.04 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 55 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 an intermediate-age cluster (see Parameters). It is moderately studied in the literature.

(*): The parallax distance estimate (~3.53 kpc) differs significantly from the median photometric distance (~0.97 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 Intermediate age

Data

🔍 Search references for ASCC 55 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–	148.642	-57.049	0.283	-5.026	3.587	18.946
Just et al.	2023	148.495	-57.073	–	–	–	–
Bica et al.	2019	148.569	-57.075	–	–	–	–
Dib et al.	2018	148.5	-57.077	–	–	–	–
Sampedro et al.	2017	148.575	-57.08	–	-3.25	1.07	–
Joshi et al.	2016	148.5	-57.077	–	–	–	–
Kharchenko et al.	2016	148.495	-57.073	–	–	–	–
Dias et al.	2014	148.575	-57.08	–	-3.21	1.03	–
Kharchenko et al.	2013	148.5	-57.077	–	-1.15	2.6	–
Piskunov et al.	2008	148.569	-57.075	–	–	–	–
Kharchenko et al.	2005	148.57	-57.08	–	-1.13	2.27	–
Dias et al.	2002	148.575	-57.08	–	-3.21	1.03	–

💡 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–	0.97	0.63	–	282	–	380	–	–
Just et al.	2023	–	–	–	282	–	450	–	–
Dib et al.	2018	0.97	–	–	282	–	–	–	–
Joshi et al.	2016	0.97	0.66	–	282	–	309	–	–
Kharchenko et al.	2016	0.97	0.66	–	282	–	–	–	–
Kharchenko et al.	2013	0.97	0.66	–	282	–	–	–	–
Piskunov et al.	2008	1.10	0.60	–	282	–	–	–	–
Kharchenko et al.	2005	1.10	0.60	–	282	–	–	–	–
Dias et al.	2002	1.10	0.60	–	282	–	–	–	–

Visualization

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