NGC 1758

(OCL 453; MWSC 463; FoF 2266)

Click to load Aladin Lite
0.93 UTI
0.88
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
N50 (P>50% members) 434
Stellar density (N50/rad) 50.5 [N/pc2]
C3 classification AB
  • CN 0.88 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 1.0 Very well-studied
  • Cdup 1.0 Unique
πŸ“₯ Members πŸ“Š Colab πŸ”¬ Bayestar19 MOCAMOCA πŸ” CDS πŸ” Simbad πŸ” CDS (Ξ±, Ξ΄) πŸ” Simbad (Ξ±, Ξ΄)

Overview
ℹ️
NGC 1758 is a rich, very dense object of high C3 quality. Its parallax locates it at a 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 very well-studied in the literature.

Note: This object shares a moderate percentage of members with at least one entry reported in the same catalogue. See table with shared members information.

Almeida et al. (2025)
Mass determination: good fit. Isochrone match: good fit. Silver sample.

Cavallo et al. (2024)
Gold sample.

Data
πŸ” Search references for NGC 1758 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 76.184 23.816 1.112 3.116 -3.485 3.547
Li et al. 2025 76.175 23.813 1.103 3.156 -3.465 –
Hu & Soubiran 2025 76.188 23.813 – – – –
Wei et al. 2025 76.173 23.811 1.114 3.102 -3.496 –
Almeida et al. 2025 76.176 23.811 – – – –
Alfonso et al. 2024 76.186 23.819 1.084 3.127 -3.507 –
Zhang et al. 2024 76.175 23.813 – – – –
Hunt & Reffert 2024 76.175 23.813 1.134 3.125 -3.489 2.041
Cavallo et al. 2024 76.188 23.813 1.125 – – –
Hunt & Reffert 2023 76.175 23.813 1.134 3.125 -3.489 2.041
Almeida et al. 2023 76.178 23.813 – – – –
He et al. 2022 76.18 23.81 1.124 3.128 -3.497 –
Tarricq et al. 2022 76.173 23.821 1.119 3.126 -3.493 –
Dias et al. 2021 76.176 23.811 1.102 3.156 -3.47 17.84
Cantat-Gaudin et al. 2020 76.175 23.813 1.103 3.156 -3.465 –
SΓ‘nchez et al. 2020 76.146 23.798 – 3.13 -3.365 –
Cantat-Gaudin & Anders 2020 76.175 23.813 1.103 3.156 -3.465 –
Liu & Pang 2019 76.2 23.798 1.102 3.148 -3.474 –
Bossini et al. 2019 76.175 23.813 – – – –
Bica et al. 2019 76.167 23.806 – – – –
Cantat-Gaudin et al. 2018 76.175 23.813 1.103 3.156 -3.465 –
Loktin & Popova 2017 76.14 23.799 – -0.068 1.335 –
Dias et al. 2014 76.146 23.798 – -0.61 -3.57 –
van den Bergh 2006 76.1 23.783 – – – –
Dias et al. 2002 76.146 23.798 – -0.61 -3.57 –

πŸ’‘ 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– 0.865 1.05 0.69 541 0.049 416 0.47 –
Li et al. 2025 0.81 0.97 – 784 -0.043 – – –
Hu & Soubiran 2025 – – – – -0.160(5) – – –
Wei et al. 2025 1.85 1.32 – 562 0.500 429 0.49 –
Almeida et al. 2025 0.86 1.20 – 541 – 404 – –
Alfonso et al. 2024 0.89 0.93 – 530 0.097 – – –
Zhang et al. 2024 – – – – -0.080(1) – – –
Hunt & Reffert 2024 – – – – – 685(1) – –
Cavallo et al. 2024 0.91 1.06 – 646 0.360 – – –
Hunt & Reffert 2023 0.84 1.01 0.69 305 – – – –
Almeida et al. 2023 0.85 1.27 – 552 -0.018 333(1) 0.45 –
He et al. 2022 – 1.25 – 708 – – – –
Tarricq et al. 2022 0.87 – – 295 – – – –
Dias et al. 2021 0.86 1.20 – 541 0.098 – – –
Cantat-Gaudin et al. 2020 0.89 0.93 – 275 – – – –
Cantat-Gaudin & Anders 2020 0.88 – – – – – – –
Liu & Pang 2019 – – – 355 0.250 – – –
Bossini et al. 2019 0.93 0.93 – 551 0.000 – – –
Cantat-Gaudin et al. 2018 0.88 – – – – – – –
Loktin & Popova 2017 0.62 1.01 – 542 – – – –
van den Bergh 2006 0.76 1.05 – 398 – – – –
Dias et al. 2002 0.76 1.05 – 398 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
Melotte 28 27.0 76.16 23.82 1.13 3.13 -3.5 5.78 0.8

πŸ’‘ Note: The % column shows the percentage of members that NGC 1758 shares with each listed object.

Visualization
ℹ️
NGC 1758 UCC
NGC 1758 HUNT23
NGC 1758 CANTAT20
Galactocentric position diagram