Alessi 53

(MWSC 879; DSH J0629.4+0910; DC 7; FSR 0986)

0.80 UTI

0.52

C_N

1.0

C_dens

0.5

C_C3

1.0

C_lit

1.0

C_dup

C3 classification BB

Number of members (P>50%) 54

Radius (P>50% members) 1.3 [arcmin]

C_N 0.52 Moderately populated
C_dens 1.0 Very dense
C_C3 0.5 Intermediate quality
C_lit 1.0 Very well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Alessi 53 is a moderately populated, very dense object of intermediate C3 quality. Its parallax locates it at a large distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is very well-studied in the literature.

Distant Moderate extinction Near-solar metallicity Intermediate age

Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: intermediate fit.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Alessi 53 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	–	97.352	9.18	0.183	0.4	-0.213	56.054
Almeida et al.	2025	97.363	9.179	–	–	–	–
Hunt & Reffert	2024	97.352	9.178	0.162	0.361	-0.238	51.282
Cavallo et al.	2024	97.354	9.176	0.165	–	–	–
Hunt & Reffert	2023	97.352	9.178	0.162	0.361	-0.238	51.282
Just et al.	2023	97.323	9.166	–	–	–	–
Dias et al.	2021	97.363	9.179	0.151	0.469	-0.237	–
Cantat-Gaudin et al.	2020	97.352	9.18	0.198	0.431	-0.201	–
Sánchez et al.	2020	97.35	9.18	–	0.462	-0.368	–
Cantat-Gaudin & Anders	2020	97.352	9.18	0.198	0.431	-0.201	–
Bica et al.	2019	97.346	9.176	–	–	–	–
Cantat-Gaudin et al.	2018	97.352	9.18	0.198	0.431	-0.201	–
Loktin & Popova	2017	97.35	9.181	–	0.58	-1.96	–
Kharchenko et al.	2016	97.323	9.166	–	–	–	–
Dias et al.	2014	97.35	9.18	–	0.58	-1.96	–
Kharchenko et al.	2013	97.33	9.165	–	1.59	-1.99	–
Kronberger et al.	2006	97.352	9.178	–	–	–	–
Dias et al.	2002	97.35	9.18	–	0.58	-1.96	–

💡 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]	Bfr	BSS
Almeida et al.	2025	4.27	1.98	–	334	–	202	–	–
Hunt & Reffert	2024	–	–	–	–	–	717*	–	–
Cavallo et al.	2024	3.37	2.28	–	257	-0.640	–	–	–
Hunt & Reffert	2023	4.86	1.78	1.68	472	–	–	–	–
Just et al.	2023	–	–	–	10	–	159	–	–
Dias et al.	2021	4.27	1.98	–	334	-0.202	–	–	–
Cantat-Gaudin et al.	2020	5.73	1.93	–	76	–	–	–	–
Cantat-Gaudin & Anders	2020	4.41	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	4.41	–	–	–	–	–	–	–
Loktin & Popova	2017	4.28	2.03	–	933	–	–	–	–
Kharchenko et al.	2016	2.39	1.97	–	10	–	–	–	–
Kharchenko et al.	2013	2.39	1.97	–	10	–	–	–	–
Dias et al.	2002	4.57	2.48	–	251	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Visualization

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