Kronberger 28

(MWSC 3255; DSH J2006.5+3534)

0.16 UTI

0.0

C_N

0.03

C_dens

0.12

C_C3

0.32

C_lit

1.0

C_dup

N_m (P>50%) 16

Core radius and density 1.4 [pc], 0.2 [pc^-2]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.03 Very loose
C_C3 0.12 Very low quality
C_lit 0.32 Poorly studied
C_dup 1.0 Unique

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

Overview

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Kronberger 28 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by moderate extinction. It is catalogued as an intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~4.09 kpc) differs significantly from the median photometric distance (~2.69 kpc).

Relatively close Moderate extinction Intermediate age

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.36 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.36 (50th percentile).

Bica et al. (2019)
The Preliminary Amateur Open Cluster Catalog, Version 08/03/2003.

Data

🔍 Search references for Kronberger 28 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–	301.656	35.57	0.245	-3.208	-5.611	–
Hunt & Reffert	2024	301.659	35.55	0.24	-3.222	-5.627	–
Hunt & Reffert	2023	301.659	35.55	0.24	-3.222	-5.627	–
Just et al.	2023	301.622	35.567	–	–	–	–
Bica et al.	2019	301.632	35.57	–	–	–	–
Kharchenko et al.	2016	301.622	35.567	–	–	–	–
Tadross	2014	301.633	35.576	–	–	–	–
Dias et al.	2014	301.633	35.576	–	-3.54	-5.8	–
Kharchenko et al.	2013	301.627	35.57	–	-2.11	-5.43	–
Bukowiecki et al.	2011	301.637	35.575	–	–	–	–
Kronberger et al.	2006	301.632	35.576	–	–	–	–
Dias et al.	2002	301.633	35.576	–	-2.11	-5.43	–

💡 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–	2.69	2.6	1.68	399	–	381	–	–
Hunt & Reffert	2024	3.77	2.60	1.68	190	–	381⁽¹⁾	–	–
Hunt & Reffert	2023	3.77	2.60	1.68	191	–	–	–	–
Just et al.	2023	–	–	–	716	–	99	–	–
Kharchenko et al.	2016	2.69	2.43	–	716	–	–	–	–
Tadross	2014	0.55	7.13	–	400	–	–	–	–
Kharchenko et al.	2013	2.69	2.43	–	716	–	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	845	–	–
Bukowiecki et al.	2011	2.28⁽¹⁾	2.84	–	28	–	–	–	–
Dias et al.	2002	0.55	7.13	–	398	–	–	–	–

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

Visualization

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