Teutsch 23

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

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0.66 UTI
0.75
CN
0.16
Cdens
0.75
CC3
0.81
Clit
1.0
Cdup
Nm (P>50%) 101
Core radius and density 3.3 [pc], 0.8 [pc-2]
C3 classification BA
  • CN 0.75 Rich
  • Cdens 0.16 Very loose
  • CC3 0.75 High quality
  • Clit 0.81 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 2 later reported entries. See table with shared members information.

Li et al. (2026)
Tidal & Core radii: r_t=119+/-85.6 [pc], r_c=0.41+/-0.0 [pc]; stars within r_t: N~120

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
Li et al. 2026 356.97 63.02 – – – –
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 –
Dias et al. 2016 356.979 62.99 – 0.1 -2.15 –
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 – – – –

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 – – – –
Dias et al. 2016 2.68 2.43 – 10 – – – –
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 – – – –

(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 – 0.04
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