Teutsch 4

(DSH J0438.2+4317)

0.37 UTI

0.75

C_N

0.57

C_dens

0.25

C_C3

0.13

C_lit

1.0

C_dup

N_m (P>50%) 112

Core radius and density 1.9 [pc], 2.8 [pc^-2]

C3 classification CC

C_N 0.75 Rich
C_dens 0.57 Moderately dense
C_C3 0.25 Low quality
C_lit 0.13 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Teutsch 4 is a rich, moderately dense object of low C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is rarely studied in the literature.

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

Distant Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).

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

Data

🔍 Search references for Teutsch 4 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–	69.576	43.292	0.223	-0.398	-1.54	4.693
Hu & Soubiran	2025	69.57	43.288	–	–	–	–
Hunt & Reffert	2024	69.583	43.299	0.221	-0.396	-1.543	2.71
Cavallo et al.	2024	69.57	43.288	0.226	–	–	–
Hunt & Reffert	2023	69.583	43.299	0.221	-0.396	-1.543	2.71
Bica et al.	2019	69.569	43.289	–	–	–	–
Kronberger et al.	2006	69.565	43.286	–	–	–	–

💡 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–	3.9	2.01	0.58	669	-0.120	719	–	–
Hu & Soubiran	2025	–	–	–	–	-0.130⁽⁵⁾	–	–	–
Hunt & Reffert	2024	3.90	2.01	0.58	669	–	719⁽¹⁾	–	–
Cavallo et al.	2024	3.45	2.22	–	1175	-0.110	–	–	–
Hunt & Reffert	2023	3.90	2.01	0.58	668	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 1265	63.4	69.58	43.29	0.23	-0.41	-1.54	4.34	0.0

💡 Note: The % column shows the percentage of members that Teutsch 4 shares with each listed object.

Visualization

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