COIN-Gaia 26

(COIN 26)

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0.81 UTI
0.73
CN
1.0
Cdens
0.75
CC3
0.79
Clit
1.0
Cdup
N50 (P>50% members) 96
Radius (P>50% members) 4.7 [arcmin]
C3 classification AB
  • CN 0.73 Moderately populated
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.79 Well-studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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COIN-Gaia 26 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, below 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 age and metallicity parameters (see Parameters). It is well-studied in the literature.

Note: This object shares a large percentage of members with 3 later reported entries. See table with shared members information.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for COIN-Gaia 26 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– 83.77 15.72 0.703 0.254 -2.395 10.424
Li et al. 2025 83.771 15.721 0.688 0.267 -2.376 –
Almeida et al. 2025 83.807 15.714 – – – –
Zhang et al. 2024 83.773 15.707 – – – –
Hunt & Reffert 2024 83.773 15.707 0.699 0.263 -2.404 15.182
Cavallo et al. 2024 83.796 15.714 0.705 – – –
Hunt & Reffert 2023 83.773 15.707 0.699 0.263 -2.404 15.182
Almeida et al. 2023 83.795 15.705 – – – –
He et al. 2022 83.768 15.682 0.799 0.257 -2.38 –
Tarricq et al. 2022 83.758 15.732 0.702 0.257 -2.4 –
Dias et al. 2021 83.807 15.714 0.686 0.263 -2.403 –
Cantat-Gaudin et al. 2020 83.771 15.721 0.688 0.267 -2.376 –
Cantat-Gaudin & Anders 2020 83.771 15.721 0.688 0.267 -2.376 –
Monteiro & Dias 2019 83.771 15.721 – – – 2.901
Cantat-Gaudin et al. 2019 83.771 15.721 0.69 0.27 -2.39 –

💡 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– 1.39 1.57 0.48 164 -0.021 383 0.4 –
Li et al. 2025 1.21 1.57 – 322 -0.158 – – –
Almeida et al. 2025 1.31 1.74 – 157 – 383 – –
Zhang et al. 2024 – – – – -0.132(1) – – –
Hunt & Reffert 2024 – – – – – 446(1) – –
Cavallo et al. 2024 1.45 1.38 – 363 0.430 – – –
Hunt & Reffert 2023 1.32 1.45 0.48 175 – – – –
Almeida et al. 2023 1.31 1.75 – 141 -0.025 352(1) 0.40 –
He et al. 2022 – 1.75 – 71 – – – –
Tarricq et al. 2022 1.39 – – 186 – – – –
Dias et al. 2021 1.31 1.74 – 157 -0.017 – – –
Cantat-Gaudin et al. 2020 1.45 1.32 – 170 – – – –
Cantat-Gaudin & Anders 2020 1.40 – – – – – – –
Monteiro & Dias 2019 1.56 1.44 – 137 0.019 – – –
Cantat-Gaudin et al. 2019 1.40 – – – – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
LISC 0988 100.0 83.77 15.72 0.7 0.25 -2.39 10.42 0.04
UBC 75 95.8 83.77 15.72 0.7 0.26 -2.4 10.42 0.03
CWWDL 3284 91.7 83.77 15.72 0.7 0.25 -2.39 10.42 0.0

💡 Note: The % column shows the percentage of members that COIN-Gaia 26 shares with each listed object.

Visualization
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COIN-Gaia 26 UCC
COIN-Gaia 26 HUNT23
COIN-Gaia 26 CANTAT20
Galactocentric position diagram