Alessi J2327.0+55

(Alessi J2327+55; ASCC 129; MWSC 3730; Alessi 70)

0.46 UTI

0.0

C_N

0.41

C_dens

0.38

C_C3

0.75

C_lit

1.0

C_dup

N₅₀ (P>50% members) 24

Stellar density (N₅₀/rad) 2.1 [N/pc²]

C3 classification CB

C_N 0.0 Sparse
C_dens 0.41 Loose
C_C3 0.38 Low quality
C_lit 0.75 Well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Alessi J2327.0+55 is a sparse, loose object of low C3 quality. Its parallax locates it at a relatively close distance, below the mid-plane, affected by low extinction. It is catalogued as a metal-rich, intermediate-age cluster, but with a large variance across recent sources for the age and mass parameters (see Parameters). It is well-studied in the literature.

Relatively close Low extinction Metal-rich Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Alessi J2327.0+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–	352.042	55.621	0.528	-2.045	-1.56	-31.913
Hunt & Reffert	2024	352.051	55.615	0.523	-2.031	-1.55	–
Cavallo et al.	2024	352.05	55.634	0.516	–	–	–
Hunt & Reffert	2023	352.051	55.615	0.523	-2.031	-1.55	–
Just et al.	2023	352.02	55.609	–	–	–	–
Bica et al.	2019	351.925	55.588	–	–	–	–
Loktin & Popova	2017	351.915	55.592	–	-0.062	-0.653	–
Kharchenko et al.	2016	352.02	55.609	–	–	–	–
Dias et al.	2014	351.921	55.592	–	-0.44	-2.41	–
Kharchenko et al.	2013	352.027	55.613	–	-0.63	-2.88	–
Kharchenko et al.	2012	352.027	55.613	–	-0.63	-2.88	–
Piskunov et al.	2008	351.991	55.6	–	–	–	–
Kharchenko et al.	2005	352.0	55.6	–	-1.07	-4.12	–
Dias et al.	2002	351.921	55.592	–	-0.44	-2.41	–

💡 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–	1.82	0.82	0.49	496	0.520	854	–	–
Hunt & Reffert	2024	–	–	–	–	–	124⁽¹⁾	–	–
Cavallo et al.	2024	2.00	0.82	–	178	0.520	–	–	–
Hunt & Reffert	2023	1.82	0.89	0.49	165	–	–	–	–
Just et al.	2023	–	–	–	1122	–	1585	–	–
Loktin & Popova	2017	1.82	0.16	–	501	–	–	–	–
Kharchenko et al.	2016	2.00	0.93	–	1122	–	–	–	–
Kharchenko et al.	2013	2.00	0.93	–	1122	–	–	–	–
Kharchenko et al.	2012	2.00	0.93	–	1122	–	–	–	–
Piskunov et al.	2008	1.00	0.56	–	490	–	–	–	–
Kharchenko et al.	2005	1.00	0.56	–	490	–	–	–	–
Dias et al.	2002	1.00	0.56	–	490	–	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Visualization

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