Alessi Teutsch 11

(ASCC 112; MWSC 3295; AT 11; Alessi 46; Alessi J2016.5+5204; FoF 2358)

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0.96 UTI
0.82
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
N50 (P>50% members) 293
Stellar density (N50/rad) 22.8 [N/pc2]
C3 classification AA
  • CN 0.82 Rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very high quality
  • Clit 1.0 Very well-studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
ℹī¸
Alessi Teutsch 11 is a rich, very dense object of very high C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by low extinction. It is catalogued as a low-mass, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity and mass parameters (see Parameters). It is very well-studied in the literature.

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Bica et al. (2019)
Web updates in DAML02, some were later removed (2003 to 2010). List of clusters and alike reported by B. Alessi. The Preliminary Amateur Open Cluster Catalog, Version 08/03/2003.

Data
🔍 Search references for Alessi Teutsch 11 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 304.148 52.047 1.533 -0.119 -1.291 -27.173
Bijavara Seshashayana et al. 2025 304.093 52.105 – – – –
Li et al. 2025 304.127 52.051 1.52 -0.139 -1.295 –
Yang et al. 2025 304.102 52.074 – – – –
Almeida et al. 2025 304.143 52.032 – – – –
Alfonso et al. 2024 304.146 52.073 1.504 -0.133 -1.264 –
Zhang et al. 2024 304.102 52.074 – – – –
Hunt & Reffert 2024 304.102 52.074 1.537 -0.129 -1.303 -27.811
Cavallo et al. 2024 304.087 52.056 1.534 – – –
Hunt & Reffert 2023 304.102 52.074 1.537 -0.129 -1.303 -27.811
Almeida et al. 2023 304.206 52.01 – – – –
Just et al. 2023 304.092 52.095 – – – –
He et al. 2022 304.138 52.056 1.538 -0.124 -1.311 –
Tarricq et al. 2022 304.028 52.086 1.551 -0.143 -1.288 –
Dias et al. 2021 304.143 52.032 1.514 -0.139 -1.267 -25.929
Cantat-Gaudin et al. 2020 304.127 52.051 1.52 -0.139 -1.295 –
Zhong et al. 2020 304.127 52.051 – -0.139 -1.295 -31.98
Cantat-Gaudin & Anders 2020 304.127 52.051 1.52 -0.139 -1.295 –
Liu & Pang 2019 304.141 52.057 1.52 -0.153 -1.222 –
Bossini et al. 2019 304.11 52.056 – – – –
Soubiran et al. 2018 304.127 52.051 – – – -26.67
Bica et al. 2019 304.132 52.078 – – – –
Cantat-Gaudin et al. 2018 304.127 52.051 1.52 -0.139 -1.295 –
Dib et al. 2018 304.095 52.098 – – – –
Loktin & Popova 2017 304.14 52.075 – -1.005 -0.296 –
Sampedro et al. 2017 304.133 52.075 0.31 -1.49 – –
Joshi et al. 2016 304.095 52.098 – – – –
Kharchenko et al. 2016 304.092 52.095 – – – –
Dias et al. 2014 304.133 52.075 – -0.06 -1.46 –
Kharchenko et al. 2013 304.095 52.098 – -0.33 -0.31 –
Piskunov et al. 2008 304.113 52.097 – – – –
Piskunov et al. 2007 304.113 52.097 – – – –
Kharchenko et al. 2005 304.11 52.1 – -0.37 -0.73 –
Dias et al. 2002 304.133 52.075 – -0.06 -1.46 –

💡 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– 0.63 0.25 0.57 141 0.026 48 0.51 –
Bijavara Seshashayana et al. 2025 – 0.37 – 140 -0.100(14) – – –
Li et al. 2025 0.66 0.09 – 257 0.246 – – –
Yang et al. 2025 – – – 182 -0.120(3) – – –
Almeida et al. 2025 0.64 0.22 – 179 – 203 – –
Alfonso et al. 2024 0.63 0.37 – 98 0.070 – – –
Zhang et al. 2024 – – – – -0.069(1) – – –
Hunt & Reffert 2024 – – – – – 335(1) – –
Cavallo et al. 2024 0.66 0.46 – 79 0.190 – – –
Hunt & Reffert 2023 0.61 0.10 0.57 180 – – – –
Almeida et al. 2023 0.64 0.26 – 179 0.024 217(1) 0.51 –
Just et al. 2023 – – – 141 – 14 – –
He et al. 2022 – 0.45 – 112 – – – –
Spina et al. 2022 – – – – -0.182 – – –
Tarricq et al. 2022 0.62 – – 155 – – – –
Dias et al. 2021 0.64 0.22 – 179 0.072 – – –
Cantat-Gaudin et al. 2020 0.63 0.37 – 145 – – – –
Kounkel et al. 2020 0.64 0.41 – 100 – – – –
Zhong et al. 2020 0.65(1) 0.32 – 8179 0.029 – – –
Cantat-Gaudin & Anders 2020 0.65 – – – – – – –
Liu & Pang 2019 – – – 105 0.250 – – –
Bossini et al. 2019 0.63 0.31 – 152 0.000 – – –
Soubiran et al. 2018 0.65 – – – – – – –
Cantat-Gaudin et al. 2018 0.65 – – – – – – –
Dib et al. 2018 0.57 – – 141 – – – –
Loktin & Popova 2017 0.73 0.23 – 192 – – – –
Joshi et al. 2016 0.57 0.25 – 141 – 26 – –
Kharchenko et al. 2016 0.57 0.25 – 141 – – – –
Kharchenko et al. 2013 0.57 0.25 – 141 – – – –
Piskunov et al. 2008 0.55 0.25 – 141 – 48(1) – –
Piskunov et al. 2007 0.55 0.25 – 141 – 12 – –
Kharchenko et al. 2005 0.55 0.25 – 141 – – – –
Dias et al. 2002 0.55 0.25 – 141 – – – –

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

Visualization
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Alessi Teutsch 11 UCC
Alessi Teutsch 11 HUNT23
Alessi Teutsch 11 CANTAT20
Galactocentric position diagram