ESO 371 25

(MWSC 1595)

Click to load Aladin Lite
0.70 UTI
0.79
CN
1.0
Cdens
0.75
CC3
0.48
Clit
1.0
Cdup
Nm (P>50%) 199
Core radius and density 1.6 [pc], 5.5 [pc-2]
C3 classification AB
  • CN 0.79 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.48 Poorly studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
ℹī¸
ESO 371 25 is a rich, very dense object of high C3 quality. Its parallax locates it at a large distance, well above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, old cluster (see Parameters). It is poorly studied in the literature.

Note: This object contains blue stragglers according to at least one source.

Almeida et al. (2025)
Mass determination: invalid due to poor quality CMD. Isochrone match: worst fit.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.1339, e_all=0.0728.

Data
🔍 Search references for ESO 371 25 in: SciX Simbad
ℹī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 133.248 -35.477 0.147 -2.398 1.79 37.439
Hu & Soubiran 2025 133.248 -35.473 – – – –
Almeida et al. 2025 133.249 -35.471 – – – –
Hunt & Reffert 2024 133.247 -35.479 0.157 -2.393 1.787 36.453
Cavallo et al. 2024 133.248 -35.473 0.157 – – –
Hunt & Reffert 2023 133.247 -35.479 0.157 -2.393 1.787 36.453
Jadhav & Subramaniam 2021 133.248 -35.476 – – – –
Dias et al. 2021 133.249 -35.471 0.137 -2.397 1.779 –
Cantat-Gaudin et al. 2020 133.248 -35.476 0.134 -2.429 1.749 –
Cantat-Gaudin & Anders 2020 133.248 -35.476 0.134 -2.429 1.749 –
Soubiran et al. 2018 133.248 -35.476 – – – 48.91
Bica et al. 2019 133.245 -35.48 – – – –
Cantat-Gaudin et al. 2018 133.248 -35.476 0.134 -2.429 1.749 –
Sampedro et al. 2017 133.25 -35.477 – -5.49 2.99 –
Dias et al. 2014 133.25 -35.477 – -5.84 2.95 –
Bukowiecki et al. 2011 133.242 -35.467 – – – –
Dias et al. 2002 133.25 -35.477 – -5.84 2.95 –

💡 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– 5.63 1.23 0.55 2427 -0.140 1000 – 3
Hu & Soubiran 2025 – – – – -0.140(5) – – –
Almeida et al. 2025 5.63 1.46 – 2716 – 933 – –
Hunt & Reffert 2024 5.59 1.56 0.55 996 – 1000(1) – –
Cavallo et al. 2024 4.68 1.26 – 3090 -0.120 – – –
Hunt & Reffert 2023 5.59 1.56 0.55 995 – – – –
Jadhav & Subramaniam 2021 5.83 1.20 – 2042 – 1581 – 3(1)
Dias et al. 2021 5.63 1.46 – 2716 -0.169 – – –
Cantat-Gaudin et al. 2020 5.83 1.20 – 2042 – – – –
Kounkel et al. 2020 4.99 1.13 – 2138 – – – –
Cantat-Gaudin & Anders 2020 6.11 – – – – – – –
Soubiran et al. 2018 6.11 – – – – – – –
Cantat-Gaudin et al. 2018 6.11 – – – – – – –
Bukowiecki et al. 2011 2.20(1) 0.82 – 3548 – – – –
Dias et al. 2002 2.20 0.85 – 3548 – – – –

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

Visualization
ℹī¸
ESO 371 25 UCC
ESO 371 25 HUNT23
ESO 371 25 CANTAT20
Galactocentric position diagram