Teutsch 39

(MWSC 3643; Teutsch J2236.4+3747)

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0.65 UTI
0.78
CN
0.54
Cdens
1.0
CC3
0.45
Clit
1.0
Cdup
Nm (P>50%) 175
Core radius and density 2.0 [pc], 2.7 [pc-2]
C3 classification AA
  • CN 0.78 Rich
  • Cdens 0.54 Moderately dense
  • CC3 1.0 Very high quality
  • Clit 0.45 Poorly studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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Teutsch 39 is a rich, moderately dense object of very high C3 quality. Its parallax locates it at a very close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the absorption and mass parameters (see Parameters). It is poorly studied in the literature.

Note: This object shares a significant percentage of members with 4 later reported entries. See table with shared members information.

Liu et al. (2025)
Classified as primordial binary cluster 341 along with UBC_159.

Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P567, along with UBC_159.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as moving group. CMD class: 0.98 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Bica et al. (2019)
Web updates in DAML02, some were later removed (2003 to 2010). The Preliminary Amateur Open Cluster Catalog, Version 08/03/2003.

Data
🔍 Search references for Teutsch 39 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– 339.215 37.764 2.04 -1.763 -6.045 -13.077
Zhang et al. 2024 339.124 37.771 – – – –
Swiggum et al. 2024 339.124 37.771 2.011 -1.6 -6.122 -12.745
Cavallo et al. 2024 339.495 37.605 2.01 – – –
Hunt & Reffert 2023 339.124 37.771 2.011 -1.6 -6.122 -13.143
Just et al. 2023 339.148 37.722 – – – –
He et al. 2022 340.792 40.065 2.303 -2.014 -5.261 –
Bica et al. 2019 339.12 37.784 – – – –
Loktin & Popova 2017 339.12 37.756 – -2.794 -5.011 -19.5
Sampedro et al. 2017 339.121 37.756 – -2.82 -2.23 –
Joshi et al. 2016 339.154 37.726 – – – –
Kharchenko et al. 2016 339.148 37.722 – – – –
Dias et al. 2014 339.121 37.756 – -2.97 -2.38 –
Kharchenko et al. 2013 339.154 37.726 – -4.37 -6.15 -19.5
Kharchenko et al. 2012 339.154 37.726 – -4.37 -6.15 -19.5
Dias et al. 2002 339.121 37.756 – -3.25 -2.32 -19.5

💡 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] Bfrac BSS
UCC 99999– 0.6 0.63 0.56 40 -0.115 56 – –
Liu et al. 2025 0.48 0.10 – 29 – – – –
Zhang et al. 2024 – – – – -0.130(1) – – –
Swiggum et al. 2024 0.49 – – 15 – 107 – –
Cavallo et al. 2024 0.53 0.69 – 8 -0.100 – – –
Hunt & Reffert 2023 0.48 0.27 0.56 15 – – – –
Just et al. 2023 – – – 50 – 6 – –
He et al. 2022 – 0.10 – 11 – – – –
Loktin & Popova 2017 0.79 0.88 – 603 – – – –
Joshi et al. 2016 0.60 0.63 – 50 – – – –
Kharchenko et al. 2016 0.60 0.63 – 50 – – – –
Kharchenko et al. 2013 0.60 0.63 – 50 – – – –
Kharchenko et al. 2012 0.60 0.63 – 50 – – – –
Dias et al. 2002 0.81 0.25 – 20 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
OCSN 29 50.9 339.15 37.72 2.03 -1.72 -6.19 -13.08 0.02
CWWDL 14543 25.1 339.72 37.29 2.01 -1.55 -6.12 -13.97 0.08
FoF 2379 10.3 339.63 38.15 1.98 -1.56 -5.8 -21.27 0.14
CWWDL 14563 1.1 339.57 38.97 2.0 -1.59 -5.35 -22.61 0.24

💡 Note: The % column shows the percentage of members that Teutsch 39 shares with each listed object.

Visualization
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Teutsch 39 UCC
Teutsch 39 HUNT23
Galactocentric position diagram