Teutsch 90

(DSH J0530.4+2706)

0.22 UTI

0.26

C_N

0.31

C_dens

0.38

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 26

Core radius and density 1.5 [pc], 1.6 [pc^-2]

C3 classification BC

C_N 0.26 Poorly populated
C_dens 0.31 Loose
C_C3 0.38 Low quality
C_lit 0.06 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 90 is a poorly populated, loose 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 an old cluster (see Parameters). It is rarely studied in the literature.

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

⚠️ 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 Old

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.92 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.92 (50th percentile).

Bica et al. (2019)
Asterisms and cluster alikes by B. Alessi reported in DAML02.

Data

🔍 Search references for Teutsch 90 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–	82.609	27.101	0.219	0.329	-0.686	7.504
Hunt & Reffert	2024	82.605	27.099	0.245	0.323	-0.653	–
Hunt & Reffert	2023	82.605	27.099	0.245	0.323	-0.653	–
Bica et al.	2019	82.612	27.103	–	–	–	–
Kronberger et al.	2006	82.609	27.102	–	–	–	–

💡 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–	4.06	1.33	1.1	1995	–	176	–	–
Hunt & Reffert	2024	4.06	1.33	1.10	1995	–	176⁽¹⁾	–	–
Hunt & Reffert	2023	4.06	1.33	1.10	1995	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 3483	84.6	82.61	27.1	0.18	0.31	-0.69	4.06	0.06

💡 Note: The % column shows the percentage of members that Teutsch 90 shares with each listed object.

Visualization

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