Teutsch 84

(MWSC 2526; DSH J1704.3-4204)

0.85 UTI

0.87

C_N

1.0

C_dens

0.75

C_C3

0.81

C_lit

1.0

C_dup

N_m (P>50%) 407

Core radius and density 0.8 [pc], 33 [pc^-2]

C3 classification AB

C_N 0.87 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.81 Well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

Teutsch 84 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is well-studied in the literature.

Relatively close High extinction Massive Near-solar metallicity Intermediate age

Palma et al. (2025)
Classified as optical pair P322, along with CWNU_1619.

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.65 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.65 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.1442, e_all=0.1345.

Morales et al. (2013)
Classified as morphological type 'OC2' (totally exposed cluster without correlation with ATLASGAL emission). Morphological flag: exposed cluster, without submm emission.

Data

🔍 Search references for Teutsch 84 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	256.094	-42.068	0.391	-1.579	-1.239	-55.211
Otto et al.	2026	256.089	-42.07	–	-1.74	-1.11	-49.7
Hu & Soubiran	2025	256.096	-42.065	–	–	–	–
Almeida et al.	2025	256.09	-42.066	–	–	–	–
Hunt & Reffert	2024	256.089	-42.07	0.377	-1.583	-1.246	-53.062
Cavallo et al.	2024	256.096	-42.065	0.376	–	–	–
Hunt & Reffert	2023	256.089	-42.07	0.377	-1.583	-1.246	-53.062
Just et al.	2023	256.07	-42.07	–	–	–	–
Jadhav & Subramaniam	2021	256.09	-42.07	–	–	–	–
Netopil et al.	2022	256.09	-42.07	–	–	–	-58.4
Dias et al.	2021	256.09	-42.066	0.409	-1.723	-1.114	–
Spina et al.	2021	256.09	-42.068	0.401	-1.691	-1.106	–
Cantat-Gaudin et al.	2020	256.09	-42.07	0.406	-1.738	-1.109	–
Sánchez et al.	2020	256.083	-42.073	–	-1.658	-1.222	–
Donor et al.	2020	256.08	-42.07	–	-1.94	-1.08	-58.4
Cantat-Gaudin & Anders	2020	256.09	-42.07	0.406	-1.738	-1.109	–
Bica et al.	2019	256.079	-42.07	–	–	–	–
Cantat-Gaudin et al.	2018	256.09	-42.07	0.406	-1.738	-1.109	–
Dias et al.	2018	–	–	–	-1.74	-3.35	–
Sampedro et al.	2017	256.083	-42.073	–	-2.75	-3.26	–
Kharchenko et al.	2016	256.07	-42.07	–	–	–	–
Dias et al.	2014	256.083	-42.073	–	-2.51	-4.02	–
Kharchenko et al.	2013	256.08	-42.07	–	-0.67	-5.93	–
Morales et al.	2013	256.084	-42.073	–	–	–	–
Kronberger et al.	2006	256.084	-42.073	–	–	–	–
Dias et al.	2002	256.083	-42.073	–	-2.51	-4.02	–

💡 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–	2.45	3.86	2.315	989	0.177	4130	–	0
Otto et al.	2026	–	–	–	1047	0.120⁽¹⁵⁾	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.510⁽⁵⁾	–	–	–
Almeida et al.	2025	2.68	3.84	–	783	–	1821	–	–
Hunt & Reffert	2024	2.46	4.86	2.32	437	–	5083⁽¹⁾	–	–
Cavallo et al.	2024	2.12	4.62	–	813	-0.050	–	–	–
Hunt & Reffert	2023	2.46	4.86	2.31	437	–	–	–	–
Just et al.	2023	–	–	–	989	–	5272	–	–
Spina et al.	2022	–	–	–	–	0.200	–	–	–
Jadhav & Subramaniam	2021	2.44	3.48	–	1047	–	3176	–	0⁽¹⁾
Netopil et al.	2022	2.45⁽¹⁾	–	–	1047	0.200⁽¹⁾	–	–	–
Dias et al.	2021	2.68	3.84	–	783	0.161	–	–	–
Spina et al.	2021	2.50	–	–	1047	0.194⁽²⁰⁾	–	–	–
Cantat-Gaudin et al.	2020	2.44	3.48	–	1047	–	–	–	–
Kounkel et al.	2020	2.62	3.88	–	676	–	–	–	–
Donor et al.	2020	–	–	–	–	0.200	–	–	–
Cantat-Gaudin & Anders	2020	2.30	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	2.30	–	–	–	–	–	–	–
Kharchenko et al.	2016	3.41	4.27	–	989	–	–	–	–
Kharchenko et al.	2013	3.41	4.27	–	989	–	–	–	–
Morales et al.	2013	2.20	–	–	1000	–	–	–	–
Kronberger et al.	2006	2.20	3.53	–	1000	–	–	–	–
Dias et al.	2002	2.20	3.53	–	1000	–	–	–	–

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

Visualization

ℹ️

1 2 3