Berkeley 51

(FSR 0197; MWSC 3280; OCL 146)

0.74 UTI

0.79

C_N

1.0

C_dens

0.75

C_C3

0.58

C_lit

1.0

C_dup

N_m (P>50%) 205

Core radius and density 1.4 [pc], 11 [pc^-2]

C3 classification AB

C_N 0.79 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.58 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Berkeley 51 is a rich, very dense object of high C3 quality. Its parallax locates it at a large^* distance, near the mid-plane, affected by very high extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the mass parameter (see Parameters). It is moderately studied in the literature.

(*): The parallax distance estimate (~6.41 kpc) differs significantly from the median photometric distance (~3.67 kpc).

Distant Very high extinction Massive Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.04 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.04 (50th percentile).

Data

🔍 Search references for Berkeley 51 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–	302.977	34.403	0.156	-3.059	-4.868	-23.534
Hunt & Reffert	2024	302.972	34.404	0.17	-3.063	-4.864	-27.524
Cavallo et al.	2024	302.995	34.39	0.155	–	–	–
Hunt & Reffert	2023	302.972	34.404	0.17	-3.063	-4.864	-27.524
Just et al.	2023	302.969	34.407	–	–	–	–
Cantat-Gaudin et al.	2020	302.972	34.402	0.167	-3.066	-4.918	–
Cantat-Gaudin & Anders	2020	302.972	34.402	0.167	-3.066	-4.918	–
Soubiran et al.	2018	302.972	34.402	–	–	–	-23.5
Bica et al.	2019	302.988	34.398	–	–	–	–
Cantat-Gaudin et al.	2018	302.972	34.402	0.167	-3.066	-4.918	–
Dias et al.	2018	–	–	–	0.03	-5.24	–
Sampedro et al.	2017	302.975	34.402	–	–	–	–
Kharchenko et al.	2016	302.969	34.407	–	–	–	–
Tadross	2014	302.975	34.402	–	–	–	–
Kharchenko et al.	2013	302.974	34.41	–	-1.15	-1.37	–
Bukowiecki et al.	2011	302.967	34.404	–	–	–	–
Froebrich et al.	2007	302.971	34.413	–	–	–	–
Dias et al.	2002	302.975	34.402	–	-1.15	-1.37	–
Lynga	1987	303.009	34.351	–	–	–	–

💡 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–	3.675	5.31	2.81	165	-0.250	3146	–	–
Hunt & Reffert	2024	5.47	5.64	2.81	49	–	6904⁽¹⁾	–	–
Cavallo et al.	2024	3.89	5.31	–	102	-0.250	–	–	–
Hunt & Reffert	2023	5.47	5.64	2.81	50	–	–	–	–
Just et al.	2023	–	–	–	180	–	1274	–	–
Kounkel et al.	2020	3.46	3.96	–	398	–	–	–	–
Cantat-Gaudin & Anders	2020	5.10	–	–	–	–	–	–	–
Soubiran et al.	2018	5.10	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	5.10	–	–	–	–	–	–	–
Kharchenko et al.	2016	3.29	5.91	–	180	–	–	–	–
Tadross	2014	3.20	5.24	–	150	–	–	–	–
Kharchenko et al.	2013	3.29	5.91	–	180	–	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	3146	–	–
Bukowiecki et al.	2011	3.32⁽¹⁾	4.67	–	126	–	–	–	–
Dias et al.	2002	1.30	5.05	–	1122	–	–	–	–

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

Visualization

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