Berkeley 104

(MWSC 8; OCL 282)

0.74 UTI

0.72

C_N

0.4

C_dens

0.75

C_C3

0.9

C_lit

1.0

C_dup

N_m (P>50%) 94

Core radius and density 1.9 [pc], 2.0 [pc^-2]

C3 classification AB

C_N 0.72 Moderately populated
C_dens 0.4 Loose
C_C3 0.75 High quality
C_lit 0.9 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 104 is a moderately populated, loose object of high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is very well-studied in the literature.

Note: This object contains blue stragglers according to at least one source.

Distant Moderate extinction Near-solar metallicity Intermediate age Contains BSS

Almeida et al. (2025)
Mass determination: invalid due to poor quality CMD. Isochrone match: worst fit.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.85 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.85 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.3375, e_all=0.0723.

Ahumada & Lapasset (2007)
Only straggler candidates inside a radius of 2' around the centre of coordinates have been considered.

Data

🔍 Search references for Berkeley 104 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–	0.87	63.589	0.211	-2.381	0.046	-70.137
Hu & Soubiran	2025	0.887	63.594	–	–	–	–
Almeida et al.	2025	0.868	63.587	–	–	–	–
Hunt & Reffert	2024	0.858	63.59	0.211	-2.379	0.043	-74.005
Cavallo et al.	2024	0.887	63.594	0.212	–	–	–
Hunt & Reffert	2023	0.858	63.59	0.211	-2.379	0.043	-74.005
Just et al.	2023	0.843	63.577	–	–	–	–
Jadhav & Subramaniam	2021	0.865	63.587	–	–	–	–
Jaehnig et al.	2021	0.869	63.595	0.226	-2.404	0.073	–
Netopil et al.	2022	–	–	0.191	-2.399	0.097	–
Rain et al.	2021	0.865	63.587	0.198	-2.392	0.09	–
Dias et al.	2021	0.868	63.587	0.197	-2.394	0.096	–
Cantat-Gaudin et al.	2020	0.865	63.587	0.198	-2.392	0.09	–
Sánchez et al.	2020	0.875	63.583	–	-2.449	0.129	–
Cantat-Gaudin & Anders	2020	0.865	63.587	0.198	-2.392	0.09	–
Bica et al.	2019	0.873	63.587	–	–	–	–
Cantat-Gaudin et al.	2018	0.865	63.587	0.198	-2.392	0.09	–
Dias et al.	2018	–	–	–	-1.19	-0.91	–
Loktin & Popova	2017	0.87	63.583	–	-1.696	-4.194	–
Sampedro et al.	2017	0.875	63.583	–	-2.69	2.25	–
Kharchenko et al.	2016	0.843	63.577	–	–	–	–
Dias et al.	2014	0.875	63.583	–	-2.35	-0.3	–
Kharchenko et al.	2013	0.852	63.58	–	-4.57	-4.37	–
Gozha et al.	2012	0.875	63.584	–	–	–	–
Kharchenko et al.	2012	0.852	63.58	–	-4.54	-4.42	–
Bukowiecki et al.	2011	0.867	63.596	–	–	–	–
Ahumada & Lapasset	2007	0.875	63.583	–	–	–	–
Chen et al.	2003	0.869	63.597	–	–	–	–
Dias et al.	2002	0.875	63.583	–	-2.35	-0.3	–
Lynga	1987	0.869	63.597	–	–	–	–

💡 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–	4.33	1.665	1.55	776	0.070	678	–	1
Hu & Soubiran	2025	–	–	–	–	-0.270⁽⁵⁾	–	–	–
Almeida et al.	2025	4.04	1.85	–	1052	–	470	–	–
Hunt & Reffert	2024	4.27	1.69	1.55	572	–	715⁽¹⁾	–	–
Cavallo et al.	2024	3.18	1.89	–	891	-0.090	–	–	–
Hunt & Reffert	2023	4.27	1.69	1.55	573	–	–	–	–
Just et al.	2023	–	–	–	638	–	723	–	–
Jadhav & Subramaniam	2021	4.33	1.36	–	776	–	642	–	0⁽¹⁾
Jaehnig et al.	2021	4.45⁽¹⁾	–	–	–	–	–	–	–
Netopil et al.	2022	5.24⁽¹⁾	1.64	–	794	-0.060⁽¹⁾	–	–	–
Rain et al.	2021	4.41	1.42	–	776	–	–	–	1
Dias et al.	2021	4.04	1.85	–	1052	-0.294	–	–	–
Cantat-Gaudin et al.	2020	4.33	1.36	–	776	–	–	–	–
Kounkel et al.	2020	4.70	1.88	–	355	–	–	–	–
Cantat-Gaudin & Anders	2020	4.41	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	4.41	–	–	–	–	–	–	–
Loktin & Popova	2017	3.17	1.33	–	1122	–	–	–	–
Kharchenko et al.	2016	3.60	1.91	–	638	–	–	–	–
Kharchenko et al.	2013	3.60	1.91	–	638	0.070	–	–	–
Gozha et al.	2012	4.37	–	–	776	0.070	–	–	–
Kharchenko et al.	2012	3.60	1.91	–	708	0.070	–	–	–
Bukowiecki et al.	2011	4.92⁽¹⁾	1.36	–	708	–	–	–	–
Ahumada & Lapasset	2007	–	1.42	–	776	–	–	–	9
Chen et al.	2003	4.37	1.42	–	790	0.070⁽¹⁾	–	–	–
Dias et al.	2002	4.37	1.42	–	776	0.070	–	–	–

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

Visualization

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