Gulliver 2
0.66
UTI
0.78
CN
1.0
Cdens
0.75
CC3
0.39
Clit
1.0
Cdup
Nm (P>50%)
170
Core radius and density
1.1 [pc], 13 [pc-2]
- CN 0.78 Rich
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 0.39 Poorly studied
- Cdup 1.0 Unique
đĨ Members
đ Colab
đŦ Bayestar19
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
Overview
Gulliver 2 is a rich, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the absorption parameter (see Parameters). It is poorly studied in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 122.889 | -37.4 | 0.725 | -4.917 | 4.633 | 14.934 |
| Li et al. | 2025 | 122.883 | -37.404 | 0.696 | -4.951 | 4.576 | â |
| Wei et al. | 2025 | 122.911 | -37.454 | 0.761 | -4.467 | 4.31 | â |
| Almeida et al. | 2025 | 122.874 | -37.421 | â | â | â | â |
| Hunt & Reffert | 2024 | 122.895 | -37.393 | 0.714 | -4.886 | 4.626 | 8.096 |
| Celli et al. | 2024 | 122.883 | -37.404 | â | â | â | â |
| Cavallo et al. | 2024 | 122.899 | -37.407 | 0.72 | â | â | â |
| Hunt & Reffert | 2023 | 122.895 | -37.393 | 0.714 | -4.886 | 4.626 | 8.096 |
| Dias et al. | 2021 | 122.874 | -37.421 | 0.703 | -4.969 | 4.549 | â |
| Cantat-Gaudin et al. | 2020 | 122.883 | -37.404 | 0.696 | -4.951 | 4.576 | â |
| Cantat-Gaudin & Anders | 2020 | 122.883 | -37.404 | 0.696 | -4.951 | 4.576 | â |
| Monteiro & Dias | 2019 | 122.883 | -37.404 | â | â | â | 2.382 |
| Cantat-Gaudin et al. | 2018 | 122.883 | -37.404 | 0.696 | -4.951 | 4.576 | â |
đĄ 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 | 99999â | 1.36 | 1.03 | 1.67 | 7 | -0.220 | 400 | 0.42 | â |
| Liu et al. | 2025 | 1.88 | 0.31 | â | 8 | â | â | â | â |
| Li et al. | 2025 | 1.08 | 0.81 | â | 10 | -0.267 | â | â | â |
| Wei et al. | 2025 | 1.32 | 1.04 | â | 6 | -0.250 | 971 | 0.42 | â |
| Almeida et al. | 2025 | 1.36 | 1.03 | â | 9 | â | 267 | â | â |
| Hunt & Reffert | 2024 | 1.33 | 0.95 | 1.67 | 5 | â | 534(1) | â | â |
| Celli et al. | 2024 | â | â | â | 7 | â | 230 | â | â |
| Cavallo et al. | 2024 | 1.31 | 1.03 | â | 6 | -0.220 | â | â | â |
| Hunt & Reffert | 2023 | 1.32 | 0.95 | 1.67 | 5 | â | â | â | â |
| Dias et al. | 2021 | 1.36 | 1.03 | â | 9 | -0.038 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 1.37 | 0.51 | â | 7 | â | â | â | â |
| Kounkel et al. | 2020 | 1.41 | 2.02 | â | 56 | â | â | â | â |
| Cantat-Gaudin & Anders | 2020 | 1.38 | â | â | â | â | â | â | â |
| Monteiro & Dias | 2019 | 1.53 | 1.04 | â | 7 | 0.013 | â | â | â |
| Cantat-Gaudin et al. | 2018 | 1.38 | â | â | â | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Liu et al. (2025)
Classified as primordial binary cluster 156 along with HSC_2039.
Palma et al. (2025)
Classified as optical pair P612, along with UBC_1583.
Almeida et al. (2025)
Mass determination: good fit. Isochrone match: good fit. Silver sample.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.99 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).
Hu et al. (2021)
Ellipticities (core, all): e_core=0.1923, e_all=0.1796.