Gulliver 4

(FoF 100)

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0.67 UTI
0.76
CN
1.0
Cdens
0.75
CC3
0.42
Clit
1.0
Cdup
N50 (P>50% members) 128
Stellar density (N50/rad) 8.5 [N/pc2]
C3 classification AB
  • CN 0.76 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.42 Poorly studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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Gulliver 4 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, old cluster, but with a large variance across recent sources for the metallicity parameter (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: worst fit. Isochrone match: intermediate fit.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD classes: 0.90 (50th percentile), true positive (human-assigned).

Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 0.90 (50th percentile), true positive (human-assigned).

Rain et al. (2021)
This cluster was not include in (Dias et al., 2002A&A...389..871D, Cat. B/ocl), parameters log(t)=9.16, E(b-v)=0.509 and Z=0.021 are from Monteiro & Dias (2019MNRAS.487.2385M).

Piecka & Paunzen (2021)
Belongs to cluster aggregate 'Agg40' along with Gulliver 3.

Data
🔍 Search references for Gulliver 4 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– 122.149 -37.501 0.322 -2.893 3.065 53.21
Hu & Soubiran 2025 122.151 -37.492 – – – –
Almeida et al. 2025 122.167 -37.484 – – – –
Hunt & Reffert 2024 122.171 -37.505 0.326 -2.889 3.055 51.653
Cavallo et al. 2024 122.151 -37.492 0.327 – – –
Hunt & Reffert 2023 122.171 -37.505 0.326 -2.889 3.055 51.653
Jadhav & Subramaniam 2021 122.164 -37.5 – – – –
Rain et al. 2021 122.164 -37.5 0.3 -2.912 3.033 –
Dias et al. 2021 122.167 -37.484 0.299 -2.921 3.034 52.425
Cantat-Gaudin et al. 2020 122.164 -37.5 0.3 -2.912 3.033 –
Cantat-Gaudin & Anders 2020 122.164 -37.5 0.3 -2.912 3.033 –
Liu & Pang 2019 122.177 -37.513 0.289 -2.829 3.038 –
Monteiro & Dias 2019 122.164 -37.5 – – – 2.532
Soubiran et al. 2018 122.164 -37.5 – – – 51.98
Cantat-Gaudin et al. 2018 122.164 -37.5 0.3 -2.912 3.033 –

💡 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– 2.75 1.62 2.32 1164 -0.130 496 – 2
Hu & Soubiran 2025 – – – – -0.130(5) – – –
Almeida et al. 2025 2.67 1.92 – 1208 – 320 – –
Hunt & Reffert 2024 – – – – – 830(1) – –
Cavallo et al. 2024 2.59 1.62 – 891 0.310 – – –
Hunt & Reffert 2023 2.76 1.85 2.32 501 – – – –
Jadhav & Subramaniam 2021 2.74 0.94 – 1148 – 496 – 1(1)
Rain et al. 2021 3.04 1.58 – 1445 – – – 4
Dias et al. 2021 2.67 1.92 – 1208 -0.213 – – –
Cantat-Gaudin et al. 2020 2.74 0.94 – 1148 – – – –
Kounkel et al. 2020 2.84 2.13 – 407 – – – –
Cantat-Gaudin & Anders 2020 3.04 – – – – – – –
Liu & Pang 2019 – – – 1180 -0.250 – – –
Monteiro & Dias 2019 2.47 1.61 – 1466 0.021 – – –
Soubiran et al. 2018 3.04 – – – – – – –
Cantat-Gaudin et al. 2018 3.04 – – – – – – –

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

Visualization
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Gulliver 4 UCC
Gulliver 4 HUNT23
Gulliver 4 CANTAT20
Galactocentric position diagram