Berkeley 66

(MWSC 255; OCL 373; FSR 0624)

0.88 UTI

0.76

C_N

1.0

C_dens

0.62

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 123

Stellar density (N₅₀/rad) 7.8 [N/pc²]

C3 classification AC

C_N 0.76 Rich
C_dens 1.0 Very dense
C_C3 0.62 Intermediate 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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Berkeley 66 is a rich, very dense object of intermediate C3 quality. Its parallax locates it at a large distance, near the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, old cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is very well-studied in the literature.

Very distant High extinction Massive Near-solar metallicity Old

Cavallo et al. (2024)
Silver sample.

Data

🔍 Search references for Berkeley 66 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–	46.016	58.732	0.183	-0.138	0.051	-49.255
Hunt & Reffert	2024	46.019	58.742	0.196	-0.198	0.038	-41.845
Cavallo et al.	2024	46.039	58.706	0.194	–	–	–
Hunt & Reffert	2023	46.019	58.742	0.196	-0.198	0.038	-41.845
Just et al.	2023	46.003	58.738	–	–	–	–
Jaehnig et al.	2021	46.017	58.729	0.19	-0.306	0.034	–
Cantat-Gaudin et al.	2020	46.03	58.731	0.158	-0.12	-0.191	–
Donor et al.	2020	46.016	58.74	–	0.01	-0.1	-50.0
Cantat-Gaudin & Anders	2020	46.03	58.731	0.158	-0.12	-0.191	–
Soubiran et al.	2018	46.03	58.731	–	–	–	-76.19
Bica et al.	2019	46.016	58.74	–	–	–	–
Cantat-Gaudin et al.	2018	46.03	58.731	0.158	-0.12	-0.191	–
Loktin & Popova	2017	46.02	58.768	–	3.582	-1.289	-50.6
Kharchenko et al.	2016	46.003	58.738	–	–	–	–
Kharchenko et al.	2013	46.015	58.74	–	2.81	0.03	-50.6
Gozha et al.	2012	46.075	58.767	–	–	–	–
Kharchenko et al.	2012	46.015	58.74	–	2.81	0.03	-50.65
Kharchenko et al.	2007	46.08	58.77	–	0.03	–	–
van den Bergh	2006	46.075	58.767	–	–	–	–
Dias et al.	2002	46.075	58.767	–	-0.63	2.6	-50.6

💡 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–	5.35	3.6	2.85	1413	-0.480	1850	–	–
Hunt & Reffert	2024	–	–	–	–	–	1894⁽¹⁾	–	–
Cavallo et al.	2024	5.86	3.60	–	479	-0.110	–	–	–
Hunt & Reffert	2023	4.21	3.89	2.85	303	–	–	–	–
Just et al.	2023	–	–	–	1413	–	1807	–	–
Jaehnig et al.	2021	5.74⁽¹⁾	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2020	4.76	3.60	–	3090	–	–	–	–
Donor et al.	2020	–	–	–	–	-0.190	–	–	–
Cantat-Gaudin & Anders	2020	5.35	–	–	–	–	–	–	–
Soubiran et al.	2018	5.35	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	5.35	–	–	–	–	–	–	–
Loktin & Popova	2017	1.91	3.87	–	1122	–	–	–	–
Kharchenko et al.	2016	7.00	3.56	–	1413	–	–	–	–
Kharchenko et al.	2013	7.00	3.56	–	1413	-0.480	–	–	–
Gozha et al.	2012	5.00	–	–	3981	-0.480	–	–	–
Kharchenko et al.	2012	7.00	3.56	–	1413	-0.480	–	–	–
van den Bergh	2006	5.20	3.88	–	5012	–	–	–	–
Dias et al.	2002	5.00	3.97	–	3981	-0.480	–	–	–

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

Visualization

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