COIN-Gaia 38

(COIN 38)

Click to load Aladin Lite
0.80 UTI
0.76
CN
1.0
Cdens
0.75
CC3
0.75
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 132
Radius (P>50% members) 8.3 [arcmin]
  • CN 0.76 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.75 Well-studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
ℹī¸
COIN-Gaia 38 is a rich, 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 metallicity parameter (see Parameters). It is well-studied in the literature.

Note: This object shares a large percentage of members with 2 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: intermediate fit. Silver sample.

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for COIN-Gaia 38 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 51.471 51.075 0.847 1.998 -6.864 -9.13
Li et al. 2025 51.472 51.072 0.793 2.032 -6.785 –
Almeida et al. 2025 51.448 51.085 – – – –
Zhang et al. 2024 51.471 51.076 – – – –
Hunt & Reffert 2024 51.471 51.076 0.846 2.018 -6.829 -3.002
Cavallo et al. 2024 51.47 51.076 0.848 – – –
Hunt & Reffert 2023 51.471 51.076 0.846 2.018 -6.829 -3.002
He et al. 2022 51.464 51.07 0.849 1.993 -6.856 –
Tarricq et al. 2022 51.456 51.073 0.846 2.003 -6.862 –
Dias et al. 2021 51.448 51.085 0.792 2.059 -6.789 –
Cantat-Gaudin et al. 2020 51.472 51.072 0.793 2.032 -6.785 –
Cantat-Gaudin & Anders 2020 51.472 51.072 0.793 2.032 -6.785 –
Monteiro & Dias 2019 51.472 51.072 – – – 2.398
Cantat-Gaudin et al. 2019 51.472 51.072 0.79 2.03 -6.82 –

💡 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 1.07 1.95 – 520 0.055 – – –
Almeida et al. 2025 1.13 2.15 – 157 – 300 – –
Zhang et al. 2024 – – – – -0.117* – – –
Hunt & Reffert 2024 – – – – – 515* – –
Cavallo et al. 2024 1.24 2.18 – 302 0.250 – – –
Hunt & Reffert 2023 1.14 2.06 2.14 343 – – – –
He et al. 2022 – 2.45 – 282 – – – –
Tarricq et al. 2022 1.24 – – 275 – – – –
Dias et al. 2021 1.13 2.15 – 157 0.245 – – –
Cantat-Gaudin et al. 2020 1.28 1.56 – 269 – – – –
Cantat-Gaudin & Anders 2020 1.22 – – – – – – –
Monteiro & Dias 2019 1.31 2.14 – 187 0.040 – – –
Cantat-Gaudin et al. 2019 1.22 – – – – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
UBC 50 97.7 51.47 51.07 0.85 2.01 -6.86 -8.6 0.03
CWWDL 14112 84.8 51.47 51.07 0.85 2.01 -6.86 -8.6 0.0

💡 Note: The % column shows the percentage of members that COIN-Gaia 38 shares with each listed object.

Visualization
ℹī¸
COIN-Gaia 38 UCC
COIN-Gaia 38 HUNT23
COIN-Gaia 38 CANTAT20
Galactocentric position diagram