COIN-Gaia 27

(COIN 27; FoF 2268)

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0.00 UTI
0.55
CN
1.0
Cdens
0.75
CC3
0.65
Clit
0.0
Cdup
C3 classification AB
Number of members (P>50%) 60
Radius (P>50% members) 8.8 [arcmin]
  • CN 0.55 Moderately populated
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.65 Moderately studied
  • Cdup 0.0 Very likely duplicate
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
ℹī¸
COIN-Gaia 27 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 parameter (see Parameters). It is moderately studied in the literature.

⚠ī¸ Warning: This is very likely a duplicate object, which shares a large percentage of members with at least one previously reported entry. 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: intermediate fit. Silver sample.

Data
🔍 Search references for COIN-Gaia 27 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 – 85.763 13.725 0.925 0.673 -3.596 12.493
Li et al. 2025 85.76 13.743 0.912 0.697 -3.594 –
Almeida et al. 2025 85.747 13.75 – – – –
Almeida et al. 2023 85.821 13.78 – – – –
He et al. 2022 85.751 13.73 0.921 0.695 -3.598 –
Tarricq et al. 2022 85.649 13.738 0.926 0.658 -3.591 –
Dias et al. 2021 85.747 13.75 0.908 0.704 -3.597 29.634
Cantat-Gaudin et al. 2020 85.76 13.743 0.912 0.697 -3.594 –
Cantat-Gaudin & Anders 2020 85.76 13.743 0.912 0.697 -3.594 –
Liu & Pang 2019 85.736 13.724 0.918 0.662 -3.632 –
Monteiro & Dias 2019 85.76 13.743 – – – 2.535
Cantat-Gaudin et al. 2019 85.76 13.743 0.91 0.7 -3.6 –

💡 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] Bfr BSS
Li et al. 2025 1.08 1.45 – 837 -0.059 – – –
Almeida et al. 2025 1.06 1.88 – 175 – 195 – –
Almeida et al. 2023 1.06 1.76 – 415 -0.154 265* 0.62 –
He et al. 2022 – 2.10 – 224 – – – –
Tarricq et al. 2022 1.13 – – 813 – – – –
Dias et al. 2021 1.06 1.88 – 175 -0.215 – – –
Cantat-Gaudin et al. 2020 1.17 1.18 – 724 – – – –
Cantat-Gaudin & Anders 2020 1.06 – – – – – – –
Liu & Pang 2019 – – – 1180 -0.500 – – –
Monteiro & Dias 2019 1.00 1.07 – 528 0.057 – – –
Cantat-Gaudin et al. 2019 1.06 – – – – – – –

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster % RA DEC Plx pmRA pmDE Rv UTI
Streicher 52 100.0 85.78 13.72 0.92 0.67 -3.59 10.88 0.62
UBC 78 100.0 85.77 13.73 0.92 0.66 -3.59 12.49 0.03

💡 Note: The % column shows the percentage of members that COIN-Gaia 27 shares with each listed object.

Visualization
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COIN-Gaia 27 UCC
COIN-Gaia 27 CANTAT20
Galactocentric position diagram