Kronberger 121

0.05 UTI

0.0

C_N

0.02

C_dens

0.25

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 13

Stellar density (N₅₀/rad) 0.1 [N/pc²]

C3 classification DB

C_N 0.0 Sparse
C_dens 0.02 Very loose
C_C3 0.25 Low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Kronberger 121 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large^* distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster (see Parameters). It was recently reported in the literature.

(*): The parallax distance estimate (~6.73 kpc) differs significantly from the median photometric distance (~4.64 kpc).

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Distant Moderate extinction Near-solar metallicity Very young

Data

🔍 Search references for Kronberger 121 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–	163.417	-59.442	0.148	-5.423	2.252	34.028
Dias et al.	2026	163.442	-59.47	0.155	-5.415	2.246	27.263

💡 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–	4.64	2.36	–	9	0.115	–	–	–
Dias et al.	2026	4.64	2.36	–	9	0.115	–	–	–

Visualization

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