FSR 1443

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0.27 UTI
0.0
CN
0.11
Cdens
0.25
CC3
0.5
Clit
1.0
Cdup
C3 classification CC
Number of members (P>50%) 21
Radius (P>50% members) 5.2 [arcmin]
  • CN 0.0 Sparse
  • Cdens 0.11 Very loose
  • CC3 0.25 Low quality
  • Clit 0.5 Moderately studied
  • Cdup 1.0 Unique
📥 Members 📊 Colab 🔬 Bayestar19 🔍 SciX 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview
FSR 1443 is a sparse, very loose object of low 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 parameter (see Parameters). It is moderately studied in the literature.

Note: This object shares a moderate 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: good fit. Isochrone match: intermediate fit.

Cavallo et al. (2024): Gold sample.

Data
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 129.85 -47.357 0.249 -3.514 4.311 –
Hu & Soubiran 2025 129.841 -47.348 – – – –
Almeida et al. 2025 129.857 -47.356 – – – –
Hunt & Reffert 2024 129.853 -47.353 0.286 -3.474 4.465 36.624
Cavallo et al. 2024 129.841 -47.348 0.288 – – –
Hunt & Reffert 2023 129.853 -47.353 0.286 -3.474 4.465 36.624
Dias et al. 2021 129.857 -47.356 0.221 -3.562 4.144 37.746
Froebrich et al. 2007 129.858 -47.357 – – – –
Dias et al. 2002 129.858 -47.357 – -4.12 8.37 –

💡 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
Hu & Soubiran 2025 – – – – -0.220* – – –
Almeida et al. 2025 3.30 1.82 – 505 – 583 – –
Hunt & Reffert 2024 – – – – – 340* – –
Cavallo et al. 2024 3.42 1.10 – 708 0.940 – – –
Hunt & Reffert 2023 3.05 1.46 1.58 484 – – – –
Dias et al. 2021 3.30 1.82 – 505 -0.019 – – –
Dias et al. 2002 1.86 1.42 – 589 – – – –

💡 Note: The parameters are sometimes transformed from their original values to match the format of the columns shown here, see FAQ. The columns DAv, Bfr, BSS correspond to differential extinction, binary fraction, and blue stragglers, respectively. BSS values can be listed as fractions or integers.
(*): indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster % RA DEC Plx pmRA pmDE Rv UTI
CWNU 1364 44.0 129.84 -47.35 0.3 -3.52 4.49 36.7 0.29

💡 Note: The % column shows the percentage of members that FSR 1443 shares with each listed object.

Visualization
FSR 1443 UCC
FSR 1443 HUNT23
Galactocentric position diagram

💡 Note: How are the galactocentric plots generated? See FAQ.