Teutsch 2

(MWSC 638)

Click to load Aladin Lite
0.78 UTI
0.8
CN
1.0
Cdens
0.62
CC3
0.74
Clit
1.0
Cdup
Nm (P>50%) 229
Core radius and density 1.5 [pc], 5.8 [pc-2]
C3 classification AC
  • CN 0.8 Rich
  • Cdens 1.0 Very dense
  • CC3 0.62 Intermediate quality
  • Clit 0.74 Moderately studied
  • Cdup 1.0 Unique
πŸ“₯ Members πŸ“Š Colab πŸ”¬ Bayestar19 MOCAMOCA πŸ” CDS πŸ” Simbad πŸ” CDS (Ξ±, Ξ΄) πŸ” Simbad (Ξ±, Ξ΄)

Overview
ℹ️
Teutsch 2 is a rich, very dense object of intermediate C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity and mass parameters (see Parameters). It is moderately studied in the literature.

Note: This object contains blue stragglers according to at least one source.

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD classes: 0.99 (50th percentile), true positive (human-assigned).

Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 0.99 (50th percentile), true positive (human-assigned).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.1949, e_all=0.0919.

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

Data
πŸ” Search references for Teutsch 2 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 85.344 39.238 0.201 0.499 -1.41 5.849
Li et al. 2025 85.342 39.237 0.167 0.533 -1.366 –
Hu & Soubiran 2025 85.338 39.241 – – – –
Almeida et al. 2025 85.352 39.236 – – – –
Zhang et al. 2024 85.343 39.238 – – – –
Hunt & Reffert 2024 85.343 39.238 0.185 0.489 -1.434 2.875
Cavallo et al. 2024 85.338 39.241 0.186 – – –
Hunt & Reffert 2023 85.343 39.238 0.185 0.489 -1.434 2.875
Just et al. 2023 85.34 39.238 – – – –
Jadhav & Subramaniam 2021 85.342 39.237 – – – –
Dias et al. 2021 85.352 39.236 0.147 0.544 -1.381 –
Cantat-Gaudin et al. 2020 85.342 39.237 0.167 0.533 -1.366 –
SΓ‘nchez et al. 2020 85.342 39.236 – 0.723 -1.584 –
Zhong et al. 2020 85.342 39.237 – 0.533 -1.366 6.655
Cantat-Gaudin & Anders 2020 85.342 39.237 0.167 0.533 -1.366 –
Cantat-Gaudin et al. 2018 85.342 39.237 0.167 0.533 -1.366 –
Sampedro et al. 2017 85.342 39.236 – -0.83 -0.06 –
Kharchenko et al. 2016 85.34 39.238 – – – –
Dias et al. 2014 85.342 39.236 – -0.74 -0.38 –
Kharchenko et al. 2013 85.35 39.238 – -2.15 -0.01 –
Kharchenko et al. 2012 85.35 39.238 – -2.15 -0.01 –
Bukowiecki et al. 2011 85.338 39.243 – – – –
Kronberger et al. 2006 85.341 39.241 – – – –
Dias et al. 2002 85.342 39.236 – -0.74 -0.38 –

πŸ’‘ 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– 4.37 1.69 1.61 891 -0.183 821 – 1
Li et al. 2025 4.97 1.79 – 679 0.248 – – –
Hu & Soubiran 2025 – – – – -0.260(5) – – –
Almeida et al. 2025 3.93 1.83 – 836 – 435 – –
Zhang et al. 2024 – – – – -0.322(1) – – –
Hunt & Reffert 2024 4.37 1.39 1.61 1114 – 1005(1) – –
Cavallo et al. 2024 3.93 1.64 – 1148 -0.050 – – –
Hunt & Reffert 2023 4.37 1.39 1.61 1114 – – – –
Just et al. 2023 – – – 891 – 206 – –
Jadhav & Subramaniam 2021 4.81 1.20 – 1585 – 1172 – 1(1)
Dias et al. 2021 3.93 1.83 – 836 -0.106 – – –
Cantat-Gaudin et al. 2020 4.81 1.20 – 1585 – – – –
Kounkel et al. 2020 4.66 1.69 – 776 – – – –
Zhong et al. 2020 5.11(1) 1.74 – 8950 -0.364 – – –
Cantat-Gaudin & Anders 2020 5.11 – – – – – – –
Cantat-Gaudin et al. 2018 5.11 – – – – – – –
Kharchenko et al. 2016 3.60 1.74 – 891 – – – –
Kharchenko et al. 2013 3.60 1.74 – 891 – – – –
Bukowiecki et al. 2012 – – – – – 821 – –
Kharchenko et al. 2012 3.60 1.74 – 891 – – – –
Bukowiecki et al. 2011 2.91(1) 1.07 – 1122 – – – –
Dias et al. 2002 3.61 1.51 – 891 – – – –

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

Visualization
ℹ️
Teutsch 2 UCC
Teutsch 2 HUNT23
Teutsch 2 CANTAT20
Galactocentric position diagram