NGC 1750

(OCL 454; MWSC 462; FoF 2267)

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1.0 UTI
1.0
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
Radius (P>50% members) 21.6 [arcmin]
  • CN 1.0 Very rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very high quality
  • Clit 1.0 Very well-studied
  • Cdup 1.0 Unique

Overview

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NGC 1750 is a very rich, very dense object of very high C3 quality. Its parallax locates it at a close distance, below the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is very well-studied in the literature.

Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.

Close Moderate extinction Massive Near-solar metallicity Intermediate age

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

Data

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Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 75.937 23.681 1.383 -0.997 -2.401 -10.339
Li et al. 2025 75.926 23.695 1.361 -0.96 -2.366 –
Almeida et al. 2025 75.933 23.691 – – – –
Alfonso et al. 2024 75.911 23.671 1.348 -1.016 -2.404 –
Almeida et al. 2023 75.981 23.691 – – – –
Cordoni et al. 2023 75.933 23.691 1.353 -0.945 -2.386 –
He et al. 2022 75.957 23.678 1.383 -1.006 -2.411 –
Tarricq et al. 2022 75.909 23.695 1.396 -1.008 -2.407 –
Dias et al. 2021 75.933 23.691 1.353 -0.945 -2.386 -9.744
Cantat-Gaudin et al. 2020 75.926 23.695 1.361 -0.96 -2.366 –
SΓ‘nchez et al. 2020 75.979 23.658 – -0.771 -2.376 –
Cantat-Gaudin & Anders 2020 75.926 23.695 1.361 -0.96 -2.366 –
Liu & Pang 2019 76.022 23.629 1.359 -0.919 -2.393 –
Bossini et al. 2019 75.926 23.695 – – – –
Soubiran et al. 2018 75.926 23.695 – – – -10.38
Bica et al. 2019 75.988 23.674 – – – –
Cantat-Gaudin et al. 2018 75.926 23.695 1.361 -0.96 -2.366 –
Loktin & Popova 2017 75.975 23.658 – -0.608 -1.281 –
Dias et al. 2014 75.979 23.658 – -2.57 -3.1 –
Gozha et al. 2012 75.979 23.658 – – – –
van den Bergh 2006 75.975 23.65 – – – –
Dias et al. 2002 75.979 23.658 – -3.14 -2.91 –

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] Bfr BSS
Li et al. 2025 0.66 1.11 – 163 -0.042 – – –
Almeida et al. 2025 0.71 1.24 – 198 – 1097 – –
Alfonso et al. 2024 0.73 0.79 – 450 0.060 – – –
Almeida et al. 2023 0.69 1.24 – 154 -0.001 705* 0.45 –
Cordoni et al. 2023 0.71 1.24 – 198 0.060 1022 0.23 0.00
He et al. 2022 – 1.40 – 79 – – – –
Tarricq et al. 2022 0.71 – – 282 – – – –
Dias et al. 2021 0.71 1.24 – 198 0.060 – – –
Cantat-Gaudin et al. 2020 0.73 0.79 – 257 – – – –
Cantat-Gaudin & Anders 2020 0.72 – – – – – – –
Liu & Pang 2019 – – – 66 0.250 – – –
Bossini et al. 2019 0.65 0.66 – 414 0.000 – – –
Soubiran et al. 2018 0.72 – – – – – – –
Cantat-Gaudin et al. 2018 0.72 – – – – – – –
Loktin & Popova 2017 0.51 1.16 – 508 – – – –
Gozha et al. 2012 0.63 – – 200 -0.690 – – –
van den Bergh 2006 0.63 1.05 – 200 – – – –
Dias et al. 2002 0.63 1.05 – 200 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
Theia 754 93.6 75.94 23.67 1.39 -1.0 -2.4 -10.31 0.02

πŸ’‘ Note: The % column shows the percentage of members that NGC 1750 shares with each listed object.

Visualization

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