Ferrero 1

(ASCC 96; MWSC 2893; Slotegraaf 61)

0.95 UTI

0.75

C_N

1.0

C_dens

1.0

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 109

Stellar density (N₅₀/rad) 21.4 [N/pc²]

C3 classification AA

C_N 0.75 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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Ferrero 1 is a rich, very dense object of very high C3 quality. Its parallax locates it at a close distance, below 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 age and mass parameters (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 Ferrero 1 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–	275.025	-32.358	1.146	0.16	-4.832	-7.282
Li et al.	2025	275.063	-32.338	1.145	0.149	-4.809	–
Almeida et al.	2025	275.068	-32.357	–	–	–	–
Alfonso et al.	2024	275.064	-32.384	1.098	0.164	-4.806	–
Hunt & Reffert	2024	275.028	-32.351	1.131	0.156	-4.861	5.817
Cavallo et al.	2024	275.061	-32.355	1.136	–	–	–
Hunt & Reffert	2023	275.028	-32.351	1.131	0.156	-4.861	5.817
Just et al.	2023	275.009	-32.361	–	–	–	–
He et al.	2022	275.03	-32.335	1.16	0.163	-4.843	–
Tarricq et al.	2022	275.006	-32.356	1.155	0.179	-4.812	–
Dias et al.	2021	275.068	-32.357	1.152	0.121	-4.788	–
Cantat-Gaudin et al.	2020	275.063	-32.338	1.145	0.149	-4.809	–
Cantat-Gaudin & Anders	2020	275.063	-32.338	1.145	0.149	-4.809	–
Soubiran et al.	2018	275.063	-32.338	–	–	–	15.51
Bica et al.	2019	275.058	-32.351	–	–	–	–
Cantat-Gaudin et al.	2018	275.063	-32.338	1.145	0.149	-4.809	–
Kharchenko et al.	2016	275.009	-32.361	–	–	–	–
Dias et al.	2014	275.054	-32.352	–	-1.29	-4.26	–
Kharchenko et al.	2013	275.017	-32.36	–	-1.45	-4.67	-35.0
Gozha et al.	2012	275.054	-32.352	–	–	–	–
Piskunov et al.	2008	275.02	-32.369	–	–	–	–
Kharchenko et al.	2007	275.02	-32.37	–	0.25	–	-35.0
Kharchenko et al.	2005	275.02	-32.37	–	-1.29	-4.71	-35.0
Dias et al.	2002	275.054	-32.352	–	-1.3	-4.28	-35.0

💡 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–	0.84	0.46	0.9	251	0.087	192	–	–
Li et al.	2025	0.89	0.51	–	185	0.058	–	–	–
Almeida et al.	2025	0.84	0.55	–	300	–	266	–	–
Alfonso et al.	2024	0.87	0.40	–	269	0.087	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	491⁽¹⁾	–	–
Cavallo et al.	2024	0.84	0.48	–	275	0.340	–	–	–
Hunt & Reffert	2023	0.83	0.35	0.90	157	–	–	–	–
Just et al.	2023	–	–	–	251	–	14	–	–
He et al.	2022	–	0.65	–	71	–	–	–	–
Tarricq et al.	2022	0.86	–	–	257	–	–	–	–
Dias et al.	2021	0.84	0.55	–	300	0.087	–	–	–
Cantat-Gaudin et al.	2020	0.87	0.40	–	251	–	–	–	–
Cantat-Gaudin & Anders	2020	0.85	–	–	–	–	–	–	–
Soubiran et al.	2018	0.85	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	0.85	–	–	–	–	–	–	–
Kharchenko et al.	2016	0.76	0.46	–	251	–	–	–	–
Kharchenko et al.	2013	0.76	0.46	–	251	–	–	–	–
Gozha et al.	2012	0.75	–	–	186	–	117	–	–
Piskunov et al.	2008	0.75	0.46	–	186	–	–	–	–
Kharchenko et al.	2005	0.75	0.46	–	186	–	–	–	–
Dias et al.	2002	0.75	0.46	–	186	–	–	–	–

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

Visualization

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