Kronberger 84

(MWSC 3532; DSH J2135.5+5330)

0.77 UTI

0.55

C_N

1.0

C_dens

0.75

C_C3

0.77

C_lit

1.0

C_dup

N_m (P>50%) 60

Core radius and density 1.3 [pc], 5.3 [pc^-2]

C3 classification AB

C_N 0.55 Moderately populated
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.77 Well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Kronberger 84 is a moderately populated, very dense 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, but with a large variance across recent sources for the age, metallicity, and mass parameters (see Parameters). It is well-studied in the literature.

(*): The parallax distance estimate (~4.73 kpc) differs significantly from the median photometric distance (~2.50 kpc).

Relatively close Moderate extinction Near-solar metallicity Intermediate age

Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: intermediate fit. Silver sample.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.63 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.63 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.2015, e_all=0.0965.

Bica et al. (2019)
Web updates in DAML02, some were later removed (2003 to 2010). Asterisms and cluster alikes by B. Alessi reported in DAML02.

Data

🔍 Search references for Kronberger 84 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–	323.884	53.517	0.211	-2.971	-2.985	-76.129
Hu & Soubiran	2025	323.892	53.519	–	–	–	–
Almeida et al.	2025	323.883	53.518	–	–	–	–
Hunt & Reffert	2024	323.888	53.514	0.194	-2.92	-3.032	-61.546
Cavallo et al.	2024	323.892	53.519	0.195	–	–	–
Hunt & Reffert	2023	323.888	53.514	0.194	-2.92	-3.032	-61.546
Just et al.	2023	323.905	53.485	–	–	–	–
Dias et al.	2021	323.883	53.518	0.232	-3.087	-2.953	–
Cantat-Gaudin et al.	2020	323.884	53.517	0.225	-3.085	-2.908	–
Cantat-Gaudin & Anders	2020	323.884	53.517	0.225	-3.085	-2.908	–
Soubiran et al.	2018	323.884	53.517	–	–	–	-77.43
Bica et al.	2019	323.884	53.51	–	–	–	–
Cantat-Gaudin et al.	2018	323.884	53.517	0.225	-3.085	-2.908	–
Dib et al.	2018	323.91	53.488	–	–	–	–
Loktin & Popova	2017	323.88	53.514	–	-1.426	-0.749	–
Sampedro et al.	2017	323.883	53.514	–	-4.74	-0.87	–
Joshi et al.	2016	323.91	53.488	–	–	–	–
Kharchenko et al.	2016	323.905	53.485	–	–	–	–
Tadross	2014	323.883	53.514	–	–	–	–
Dias et al.	2014	323.883	53.514	–	-3.11	0.1	–
Kharchenko et al.	2013	323.91	53.488	–	-4.26	-0.16	–
Kharchenko et al.	2012	323.884	53.515	–	-3.86	0.5	–
Bukowiecki et al.	2011	323.883	53.519	–	–	–	–
Kronberger et al.	2006	323.885	53.514	–	–	–	–
Dias et al.	2002	323.883	53.514	–	-3.86	0.5	–

💡 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–	2.5	1.92	1.97	600	-0.272	556	–	–
Hu & Soubiran	2025	–	–	–	–	-0.200⁽⁵⁾	–	–	–
Almeida et al.	2025	3.40	2.43	–	247	–	328	–	–
Hunt & Reffert	2024	4.78	2.80	1.97	110	–	891⁽¹⁾	–	–
Cavallo et al.	2024	2.36	2.53	–	525	-0.980	–	–	–
Hunt & Reffert	2023	4.78	2.80	1.97	110	–	–	–	–
Just et al.	2023	–	–	–	668	–	28	–	–
Dias et al.	2021	3.40	2.43	–	247	-0.272	–	–	–
Cantat-Gaudin et al.	2020	4.04	1.94	–	288	–	–	–	–
Kounkel et al.	2020	4.91	2.67	–	224	–	–	–	–
Cantat-Gaudin & Anders	2020	3.94	–	–	–	–	–	–	–
Soubiran et al.	2018	3.94	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	3.94	–	–	–	–	–	–	–
Dib et al.	2018	1.31	–	–	668	–	–	–	–
Loktin & Popova	2017	2.50	0.97	–	562	–	–	–	–
Joshi et al.	2016	1.31	1.71	–	668	–	–	–	–
Kharchenko et al.	2016	1.31	1.71	–	668	–	–	–	–
Tadross	2014	1.07	1.92	–	600	–	–	–	–
Kharchenko et al.	2013	1.31	1.71	–	668	–	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	785	–	–
Kharchenko et al.	2012	1.20	1.74	–	631	–	–	–	–
Bukowiecki et al.	2011	1.75⁽¹⁾	0.69	–	1778	–	–	–	–
Dias et al.	2002	1.07	1.92	–	603	–	–	–	–

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

Visualization

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