Alessi Teutsch 5

(ASCC 118; AT 5; Alessi 27; MWSC 3589)

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0.91 UTI
0.79
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
N50 (P>50% members) 214
Stellar density (N50/rad) 23.8 [N/pc2]
C3 classification AB
  • CN 0.79 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 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
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Alessi Teutsch 5 is a rich, very dense object of high C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is very well-studied in the literature.

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

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for Alessi Teutsch 5 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– 332.152 61.103 1.115 -1.901 -3.272 -22.755
Almeida et al. 2025 332.274 61.096 – – – –
Alfonso et al. 2024 333.452 61.239 1.091 -1.391 -3.114 –
Hunt & Reffert 2024 332.043 61.052 1.126 -1.88 -3.329 -22.773
Celli et al. 2024 332.218 61.103 – – – –
Cavallo et al. 2024 332.085 61.065 1.123 – – –
Hunt & Reffert 2023 332.043 61.052 1.126 -1.88 -3.329 -22.773
He et al. 2022 333.275 61.36 1.114 -1.43 -3.086 –
Dias et al. 2021 332.274 61.096 1.127 -1.943 -3.205 –
Cantat-Gaudin et al. 2020 332.218 61.103 1.111 -1.895 -3.207 –
Cantat-Gaudin & Anders 2020 332.218 61.103 1.111 -1.895 -3.207 –
Dias et al. 2019 332.217 61.103 1.111 -1.895 -3.207 -5.04
Soubiran et al. 2018 332.218 61.103 – – – -21.04
Bica et al. 2019 332.108 61.03 – – – –
Cantat-Gaudin et al. 2018 332.218 61.103 1.111 -1.895 -3.207 –
Loktin & Popova 2017 332.115 61.028 – -1.017 -0.935 -42.0
Dias et al. 2014 332.112 61.028 – -0.96 -2.81 –
Gozha et al. 2012 332.112 61.028 – – – –
Piskunov et al. 2008 332.087 61.096 – – – –
Kharchenko et al. 2007 332.1 61.1 – 0.21 – -42.0
Kharchenko et al. 2005 332.1 61.1 – -2.19 -4.03 -42.0
Dias et al. 2002 332.113 61.028 – -0.96 -2.81 -42.0

💡 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– 0.88 1.045 1.29 11 -0.141 269 – –
Almeida et al. 2025 0.87 1.25 – 12 – 453 – –
Alfonso et al. 2024 0.86 1.02 – 14 -0.050 – – –
Hunt & Reffert 2024 – – – – – 222(1) – –
Celli et al. 2024 – – – 19 – 316 – –
Cavallo et al. 2024 0.89 1.41 – 5 -0.230 – – –
Hunt & Reffert 2023 0.87 0.91 1.29 6 – – – –
He et al. 2022 – 1.10 – 2 – – – –
Dias et al. 2021 0.87 1.25 – 12 -0.053 – – –
Cantat-Gaudin et al. 2020 0.91 1.02 – 19 – – – –
Cantat-Gaudin & Anders 2020 0.88 – – – – – – –
Dias et al. 2019 0.80 1.24 – 13 -0.930 – – –
Soubiran et al. 2018 0.88 – – – – – – –
Cantat-Gaudin et al. 2018 0.88 – – – – – – –
Loktin & Popova 2017 1.08 1.07 – 26 – – – –
Gozha et al. 2012 0.90 – – 10 – 95 – –
Piskunov et al. 2008 0.90 0.93 – 10 – – – –
Kharchenko et al. 2005 0.90 0.93 – 10 – – – –
Dias et al. 2002 0.90 0.93 – 10 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
HSC 813 1.4 331.59 61.2 0.85 -1.5 -3.02 -10.39 0.17

💡 Note: The % column shows the percentage of members that Alessi Teutsch 5 shares with each listed object.

Visualization
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Alessi Teutsch 5 UCC
Alessi Teutsch 5 HUNT23
Alessi Teutsch 5 CANTAT20
Galactocentric position diagram