Teutsch 127

0.67 UTI

0.77

C_N

0.63

C_dens

0.75

C_C3

0.61

C_lit

1.0

C_dup

N_m (P>50%) 146

Core radius and density 1.5 [pc], 3.1 [pc^-2]

C3 classification AB

C_N 0.77 Rich
C_dens 0.63 Moderately dense
C_C3 0.75 High quality
C_lit 0.61 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Teutsch 127 is a rich, moderately dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a metal-rich, very young cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is moderately studied in the literature.

Note: This object shares a small percentage of members with 2 later reported entries. See table with shared members information.

Distant Moderate extinction Metal-rich Very young

Li et al. (2026)
Tidal & Core radii: r_t=40+/-39.3 [pc], r_c=0.64+/-0.0 [pc]; stars within r_t: N~160

Liu et al. (2025)
Classified as primordial binary cluster 175 along with HSC_797.

Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P528, along with HSC_797.

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

Cavallo et al. (2024)
Bronze sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD classes: 0.96 (50th percentile), true positive? (human-assigned).

Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 0.96 (50th percentile), true positive? (human-assigned).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.4397, e_all=0.3433.

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

Data

🔍 Search references for Teutsch 127 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–	334.746	56.101	0.236	-3.365	-2.514	-60.771
Li et al.	2026	334.76	56.09	–	–	–	–
Almeida et al.	2025	334.747	56.113	–	–	–	–
Hunt & Reffert	2024	334.743	56.123	0.235	-3.336	-2.529	–
Celli et al.	2024	334.747	56.124	–	–	–	–
Cavallo et al.	2024	334.736	56.109	0.235	–	–	–
Hunt & Reffert	2023	334.743	56.123	0.235	-3.336	-2.529	–
Dias et al.	2021	334.747	56.113	0.235	-3.331	-2.423	–
Cantat-Gaudin et al.	2020	334.747	56.121	0.242	-3.344	-2.417	–
Cantat-Gaudin & Anders	2020	334.747	56.121	0.242	-3.344	-2.417	–
Cantat-Gaudin et al.	2018	334.747	56.121	0.242	-3.344	-2.417	–
Sampedro et al.	2017	334.75	56.124	–	-1.44	-2.86	–
Dias et al.	2016	334.75	56.124	–	–	–	–
Dias et al.	2014	334.75	56.124	–	-2.09	-2.0	–
Kronberger et al.	2006	334.747	56.124	–	–	–	–

💡 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–	3.69	2.29	1.28	6	0.543	353	–	–
Liu et al.	2025	4.39	0.75	–	13	–	–	–	–
Almeida et al.	2025	3.79	2.29	–	6	–	313	–	–
Hunt & Reffert	2024	4.21	2.45	1.28	3	–	491⁽¹⁾	–	–
Celli et al.	2024	–	–	–	12	–	353	–	–
Cavallo et al.	2024	2.59	0.99	–	23	1.240	–	–	–
Hunt & Reffert	2023	4.21	2.45	1.28	3	–	–	–	–
Dias et al.	2021	3.79	2.29	–	6	-0.154	–	–	–
Cantat-Gaudin et al.	2020	3.45	2.08	–	11	–	–	–	–
Kounkel et al.	2020	2.77	2.22	–	7	–	–	–	–
Cantat-Gaudin & Anders	2020	3.69	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	3.69	–	–	–	–	–	–	–
Dias et al.	2016	3.60	18.58	–	5	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
SBB 2	21.2	334.74	56.12	0.23	-3.27	-2.41	–	0.0
HSC 797	6.8	334.84	55.99	0.24	-3.57	-2.64	–	0.26

💡 Note: The % column shows the percentage of members that Teutsch 127 shares with each listed object.

Visualization

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