Berkeley 22

(MWSC 698; OCL 490)

0.97 UTI

0.86

C_N

1.0

C_dens

1.0

C_C3

1.0

C_lit

1.0

C_dup

C3 classification AA

Number of members (P>50%) 406

Radius (P>50% members) 1.9 [arcmin]

C_N 0.86 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 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Berkeley 22 is a rich, very dense object of very high C3 quality. Its parallax locates it at a large distance, well below the mid-plane, affected by moderate 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.

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

Note: This object shares a very small percentage of members with a later reported entry. See table with shared members information.

Very distant Moderate extinction Massive Near-solar metallicity Old Contains BSS

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Berkeley 22 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	–	89.615	7.757	0.13	0.629	-0.404	90.907
Hu & Soubiran	2025	89.617	7.753	–	–	–	–
Hunt & Reffert	2024	89.615	7.759	0.134	0.564	-0.39	87.412
Cavallo et al.	2024	89.617	7.753	0.148	–	–	–
Hunt & Reffert	2023	89.615	7.759	0.134	0.564	-0.39	87.412
Just et al.	2023	89.624	7.758	–	–	–	–
Jaehnig et al.	2021	89.623	7.764	0.1	0.616	-0.456	–
Rain et al.	2021	89.618	7.763	0.069	0.648	-0.473	–
Cantat-Gaudin et al.	2020	89.618	7.763	0.069	0.648	-0.473	–
Cantat-Gaudin & Anders	2020	89.618	7.763	0.069	0.648	-0.473	–
Soubiran et al.	2018	89.618	7.763	–	–	–	92.45
Bica et al.	2019	89.622	7.758	–	–	–	–
Cantat-Gaudin et al.	2018	89.618	7.763	0.069	0.648	-0.473	–
Loktin & Popova	2017	89.61	7.757	–	0.395	-1.002	95.3
Kharchenko et al.	2016	89.624	7.758	–	–	–	–
Kharchenko et al.	2013	89.631	7.757	–	1.81	-3.93	95.3
Gozha et al.	2012	89.613	7.757	–	–	–	–
Kharchenko et al.	2007	89.61	7.76	–	0.01	–	–
van den Bergh	2006	89.6	7.833	–	–	–	–
Chen et al.	2003	89.601	7.837	–	–	–	–
Dias et al.	2002	89.612	7.757	–	1.81	-3.93	95.3

💡 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]	Bfr	BSS
Hu & Soubiran	2025	–	–	–	–	-0.300*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	1410*	–	–
Cavallo et al.	2024	6.22	1.52	–	2884	-0.260	–	–	–
Hunt & Reffert	2023	5.26	1.81	2.54	789	–	–	–	–
Just et al.	2023	–	–	–	3162	–	703	–	–
Jaehnig et al.	2021	9.69*	–	–	–	–	–	–	–
Rain et al.	2021	10.15	1.83	–	3311	–	–	–	3
Cantat-Gaudin et al.	2020	6.22	1.99	–	2455	–	–	–	–
Cantat-Gaudin & Anders	2020	10.15	–	–	–	–	–	–	–
Soubiran et al.	2018	10.15	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	10.15	–	–	–	–	–	–	–
Loktin & Popova	2017	7.32	2.20	–	995	–	–	–	–
Kharchenko et al.	2016	5.49	1.94	–	3162	–	–	–	–
Kharchenko et al.	2013	5.49	1.94	–	3162	-0.320	–	–	–
Gozha et al.	2012	6.00	–	–	3311	-0.320	–	–	–
van den Bergh	2006	7.66	2.17	–	1072	–	–	–	–
Chen et al.	2003	7.66	2.17	–	1060	-0.300*	–	–	–
Dias et al.	2002	6.00	1.83	–	3311	-0.320	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
HSC 1586	6.2	89.61	7.76	0.25	0.67	-0.42	89.74	0.0

💡 Note: The % column shows the percentage of members that Berkeley 22 shares with each listed object.

Visualization

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