ASCC 23

(FSR 0746; KPR2005 23; MWSC 839; Ferrero 16; FoF 2366)

0.96 UTI

0.78

C_N

1.0

C_dens

1.0

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 167

Stellar density (N₅₀/rad) 19.6 [N/pc²]

C3 classification AA

C_N 0.78 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 1.0 Very well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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ASCC 23 is a rich, very dense object of very high C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is very well-studied in the literature.

Close Low extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for ASCC 23 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–	95.008	46.71	1.614	1.065	-0.605	-12.113
Li et al.	2025	95.047	46.71	1.594	1.098	-0.598	–
Almeida et al.	2025	95.031	46.718	–	–	–	–
Alfonso et al.	2024	95.057	46.729	1.573	1.065	-0.61	–
Zhang et al.	2024	95.03	46.686	–	–	–	–
Hunt & Reffert	2024	95.03	46.686	1.609	1.079	-0.636	-13.251
Cavallo et al.	2024	95.028	46.72	1.615	–	–	–
Hunt & Reffert	2023	95.03	46.686	1.609	1.079	-0.636	-13.251
Almeida et al.	2023	94.904	46.655	–	–	–	–
Just et al.	2023	95.079	46.677	–	–	–	–
He et al.	2022	95.065	46.745	1.617	1.055	-0.6	–
Tarricq et al.	2022	95.047	46.708	1.609	1.044	-0.605	–
Dias et al.	2021	95.031	46.718	1.583	1.112	-0.627	-13.42
Cantat-Gaudin et al.	2020	95.047	46.71	1.594	1.098	-0.598	–
Cantat-Gaudin & Anders	2020	95.047	46.71	1.594	1.098	-0.598	–
Liu & Pang	2019	95.092	46.759	1.586	1.144	-0.648	–
Bossini et al.	2019	95.047	46.71	–	–	–	–
Soubiran et al.	2018	95.047	46.71	–	–	–	-13.29
Bica et al.	2019	95.081	46.67	–	–	–	–
Cantat-Gaudin et al.	2018	95.047	46.71	1.594	1.098	-0.598	–
Kharchenko et al.	2016	95.079	46.677	–	–	–	–
Dias et al.	2014	95.083	46.67	–	0.11	-5.98	–
Kharchenko et al.	2013	95.089	46.675	–	0.75	-1.44	–
Kharchenko et al.	2012	95.089	46.675	–	0.75	-1.44	–
Piskunov et al.	2008	95.081	46.67	–	–	–	–
Piskunov et al.	2007	95.081	46.67	–	–	–	–
Froebrich et al.	2007	95.183	46.807	–	–	–	–
Kharchenko et al.	2005	95.08	46.67	–	1.31	-0.59	–
Dias et al.	2002	95.083	46.67	–	0.11	-5.98	–

💡 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–	0.6	0.31	0.67	296	0.013	245	0.52	–
Li et al.	2025	0.60	0.18	–	538	0.025	–	–	–
Almeida et al.	2025	0.61	0.33	–	403	–	268	–	–
Alfonso et al.	2024	0.63	0.34	–	253	0.025	–	–	–
Zhang et al.	2024	–	–	–	–	-0.013⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	276⁽¹⁾	–	–
Cavallo et al.	2024	0.63	0.38	–	166	0.310	–	–	–
Hunt & Reffert	2023	0.59	0.18	0.67	291	–	–	–	–
Almeida et al.	2023	0.60	0.38	–	308	-0.069	248⁽¹⁾	0.52	–
Just et al.	2023	–	–	–	305	–	72	–	–
He et al.	2022	–	0.50	–	282	–	–	–	–
Tarricq et al.	2022	0.62	–	–	234	–	–	–	–
Dias et al.	2021	0.61	0.33	–	403	0.025	–	–	–
Cantat-Gaudin et al.	2020	0.63	0.34	–	234	–	–	–	–
Cantat-Gaudin & Anders	2020	0.62	–	–	–	–	–	–	–
Liu & Pang	2019	–	–	–	316	0.000	–	–	–
Bossini et al.	2019	0.59	0.28	–	302	0.000	–	–	–
Soubiran et al.	2018	0.62	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	0.62	–	–	–	–	–	–	–
Kharchenko et al.	2016	0.60	0.31	–	305	–	–	–	–
Kharchenko et al.	2013	0.60	0.31	–	305	–	–	–	–
Kharchenko et al.	2012	0.60	0.31	–	305	–	–	–	–
Piskunov et al.	2008	0.60	0.22	–	282	–	242⁽¹⁾	–	–
Piskunov et al.	2007	0.60	0.22	–	282	–	76	–	–
Kharchenko et al.	2005	0.60	0.22	–	282	–	–	–	–
Dias et al.	2002	0.60	0.22	–	282	–	–	–	–

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

Visualization

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