FSR 1252

(MWSC 1195; FoF 88)

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0.91 UTI
0.79
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 210
Radius (P>50% members) 4.1 [arcmin]
  • CN 0.79 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 1.0 Very well-studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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FSR 1252 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, intermediate-age cluster, but with a large variance across recent sources for the metallicity and mass parameters (see Parameters). It is very well-studied in the literature.

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

Distant Moderate extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for FSR 1252 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 – 110.656 -18.706 0.275 -1.781 3.035 67.042
Li et al. 2025 110.659 -18.703 0.263 -1.822 2.99 –
Hu & Soubiran 2025 110.659 -18.712 – – – –
Almeida et al. 2025 110.657 -18.71 – – – –
Hunt & Reffert 2024 110.652 -18.701 0.273 -1.78 3.043 73.652
Cavallo et al. 2024 110.659 -18.712 0.274 – – –
Hunt & Reffert 2023 110.652 -18.701 0.273 -1.78 3.043 73.652
Almeida et al. 2023 110.652 -18.709 – – – –
Just et al. 2023 110.634 -18.698 – – – –
Dias et al. 2021 110.657 -18.71 0.269 -1.821 2.986 –
Cantat-Gaudin et al. 2020 110.659 -18.703 0.263 -1.822 2.99 –
Cantat-Gaudin & Anders 2020 110.659 -18.703 0.263 -1.822 2.99 –
Liu & Pang 2019 110.668 -18.716 0.269 -1.843 2.964 –
Bossini et al. 2019 110.659 -18.703 – – – –
Soubiran et al. 2018 110.659 -18.703 – – – 64.2
Bica et al. 2019 110.665 -18.707 – – – –
Cantat-Gaudin et al. 2018 110.659 -18.703 0.263 -1.822 2.99 –
Kharchenko et al. 2016 110.634 -18.698 – – – –
Kharchenko et al. 2013 110.64 -18.7 – -2.26 5.11 –
Froebrich et al. 2007 110.658 -18.708 – – – –

💡 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 3.04 1.17 – 945 -0.251 – – –
Hu & Soubiran 2025 – – – – -0.240* – – –
Almeida et al. 2025 2.90 1.13 – 946 – 379 – –
Hunt & Reffert 2024 – – – – – 1084* – –
Cavallo et al. 2024 2.59 1.39 – 1230 -0.550 – – –
Hunt & Reffert 2023 3.26 1.03 0.84 656 – – – –
Almeida et al. 2023 2.88 1.16 – 995 -0.165 554* 0.52 –
Just et al. 2023 – – – 989 – 90 – –
Dias et al. 2021 2.90 1.13 – 946 -0.102 – – –
Cantat-Gaudin et al. 2020 3.03 0.90 – 851 – – – –
Cantat-Gaudin & Anders 2020 3.42 – – – – – – –
Liu & Pang 2019 – – – 562 0.500 – – –
Bossini et al. 2019 3.66 1.04 – 661 0.000 – – –
Soubiran et al. 2018 3.42 – – – – – – –
Cantat-Gaudin et al. 2018 3.42 – – – – – – –
Kharchenko et al. 2016 1.90 1.03 – 989 – – – –
Kharchenko et al. 2013 1.90 1.03 – 989 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
OC 0396 20.5 110.65 -18.7 0.28 -1.78 3.02 66.72 0.0

💡 Note: The % column shows the percentage of members that FSR 1252 shares with each listed object.

Visualization
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FSR 1252 UCC
FSR 1252 HUNT23
FSR 1252 CANTAT20
Galactocentric position diagram