Teutsch 23

(MWSC 3760; DSH J2347.9+6259; FSR 0454)

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0.64 UTI
0.75
CN
0.14
Cdens
0.75
CC3
0.77
Clit
1.0
Cdup
Nm (P>50%) 101
Core radius and density 4.5 [pc], 0.7 [pc-2]
C3 classification BA
  • CN 0.75 Rich
  • Cdens 0.14 Very loose
  • CC3 0.75 High quality
  • Clit 0.77 Well-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 23 is a rich, very loose object of high 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, very young cluster, but with a large variance across recent sources for the distance, metallicity, and mass parameters (see Parameters). It is well-studied in the literature.

Note: This object shares a moderate percentage of members with at least one entry reported in the same catalogue. See table with shared members information.

Liu et al. (2025)
Classified as primordial binary cluster 270 along with King_21.

Palma et al. (2025)
Classified as optical pair P60, along with King_21.

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: 0.99 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.2346, e_all=0.1251.

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

Data
πŸ” Search references for Teutsch 23 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 356.947 63.048 0.31 -2.969 -1.402 -66.908
Almeida et al. 2025 356.986 63.002 – – – –
Hunt & Reffert 2024 356.968 62.993 0.317 -2.952 -1.425 –
Celli et al. 2024 356.976 62.997 – – – –
Cavallo et al. 2024 356.946 62.992 0.317 – – –
Hunt & Reffert 2023 356.968 62.993 0.317 -2.952 -1.425 –
Just et al. 2023 356.954 62.993 – – – –
Dias et al. 2021 356.986 63.002 0.283 -2.978 -1.413 –
Cantat-Gaudin et al. 2020 356.976 62.996 0.29 -2.986 -1.387 –
SΓ‘nchez et al. 2020 356.979 62.99 – -3.05 -1.317 –
Cantat-Gaudin & Anders 2020 356.976 62.996 0.29 -2.986 -1.387 –
Soubiran et al. 2018 356.976 62.996 – – – 77.45
Bica et al. 2019 356.97 62.997 – – – –
Cantat-Gaudin et al. 2018 356.976 62.996 0.29 -2.986 -1.387 –
Dias et al. 2018 – – – -1.83 -1.09 –
Loktin & Popova 2017 356.985 62.99 – 2.556 -5.789 –
Sampedro et al. 2017 356.979 62.99 – 0.07 -1.75 –
Kharchenko et al. 2016 356.954 62.993 – – – –
Dias et al. 2014 356.979 62.99 – 0.1 -2.15 –
Kharchenko et al. 2013 356.962 62.997 – 3.66 -5.83 –
Kharchenko et al. 2012 356.962 62.997 – 3.66 -5.83 –
Bukowiecki et al. 2011 356.979 62.999 – – – –
Kronberger et al. 2006 356.976 62.997 – – – –
Dias et al. 2002 356.979 62.99 – 0.1 -2.15 –

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– 3.0 2.56 0.43 13 0.236 371 – –
Liu et al. 2025 9.38 1.09 – 10 – – – –
Almeida et al. 2025 2.64 2.85 – 12 – 157 – –
Hunt & Reffert 2024 3.00 3.31 0.43 13 – 371(1) – –
Celli et al. 2024 – – – 6 – 537 – –
Cavallo et al. 2024 3.40 3.05 – 21 0.560 – – –
Hunt & Reffert 2023 3.00 3.31 0.43 13 – – – –
Just et al. 2023 – – – 13 – 44 – –
Dias et al. 2021 2.64 2.85 – 12 -0.088 – – –
Cantat-Gaudin et al. 2020 3.45 2.69 – 6 – – – –
Kounkel et al. 2020 3.21 3.18 – 47 – – – –
Cantat-Gaudin & Anders 2020 3.14 – – – – – – –
Soubiran et al. 2018 3.14 – – – – – – –
Cantat-Gaudin et al. 2018 3.14 – – – – – – –
Loktin & Popova 2017 1.32 2.08 – 65 – – – –
Kharchenko et al. 2016 2.80 2.43 – 13 – – – –
Kharchenko et al. 2013 2.80 2.43 – 13 – – – –
Bukowiecki et al. 2012 – – – – – 455 – –
Kharchenko et al. 2012 2.80 2.43 – 13 – – – –
Bukowiecki et al. 2011 2.03(1) 2.30 – 13 – – – –
Dias et al. 2002 2.68 2.43 – 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
Negueruela 1 46.5 356.86 63.21 0.31 -2.97 -1.38 – 0.6
CWWDL 10426 9.9 357.55 62.97 0.32 -3.04 -1.36 -89.18 0.11

πŸ’‘ Note: The % column shows the percentage of members that Teutsch 23 shares with each listed object.

Visualization
ℹ️
Teutsch 23 UCC
Teutsch 23 HUNT23
Teutsch 23 CANTAT20
Galactocentric position diagram