FSR 0553

(MWSC 132)

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0.66 UTI
0.56
CN
0.49
Cdens
0.75
CC3
0.74
Clit
1.0
Cdup
Nm (P>50%) 61
Core radius and density 1.8 [pc], 2.4 [pc-2]
C3 classification AB
  • CN 0.56 Moderately populated
  • Cdens 0.49 Loose
  • CC3 0.75 High quality
  • Clit 0.74 Moderately studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
ℹī¸
FSR 0553 is a moderately populated, loose object of high C3 quality. Its parallax locates it at a moderate distance, above 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 age and mass parameters (see Parameters). It is moderately studied in the literature.

Note: This object contains blue stragglers according to at least one source.

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

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.46 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.46 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.3353, e_all=0.0543.

Data
🔍 Search references for FSR 0553 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 99999– 25.226 64.513 0.34 -3.267 0.061 -47.879
Otto et al. 2026 25.218 64.506 – -3.24 0.09 -48.2
Li et al. 2025 25.226 64.521 0.306 -3.243 0.086 –
Hu & Soubiran 2025 25.263 64.524 – – – –
Almeida et al. 2025 25.242 64.52 – – – –
Hunt & Reffert 2024 25.218 64.506 0.345 -3.269 0.066 -47.478
Cavallo et al. 2024 25.263 64.524 0.343 – – –
Hunt & Reffert 2023 25.218 64.506 0.345 -3.269 0.066 -47.478
Almeida et al. 2023 25.233 64.521 – – – –
Just et al. 2023 25.223 64.513 – – – –
Jadhav & Subramaniam 2021 25.226 64.521 – – – –
Dias et al. 2021 25.242 64.52 0.293 -3.244 0.121 -49.098
Cantat-Gaudin et al. 2020 25.226 64.521 0.306 -3.243 0.086 –
Cantat-Gaudin & Anders 2020 25.226 64.521 0.306 -3.243 0.086 –
Soubiran et al. 2018 25.226 64.521 – – – -49.26
Bica et al. 2019 25.264 64.509 – – – –
Cantat-Gaudin et al. 2018 25.226 64.521 0.306 -3.243 0.086 –
Dias et al. 2018 – – – -2.02 0.45 –
Sampedro et al. 2017 25.258 64.513 – -1.65 0.23 –
Kharchenko et al. 2016 25.223 64.513 – – – –
Dias et al. 2014 25.258 64.513 – -1.5 0.34 –
Kharchenko et al. 2013 25.234 64.515 – -1.15 0.87 –
Kharchenko et al. 2012 25.234 64.515 – -1.15 0.87 –
Froebrich et al. 2007 25.258 64.513 – – – –
Dias et al. 2002 25.258 64.513 – -1.5 0.34 –

💡 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– 2.98 2.015 2.02 688 -0.011 394 0.58 3
Otto et al. 2026 – – – 3388 -0.180(15) – – –
Li et al. 2025 2.51 1.73 – 1736 0.075 – – –
Hu & Soubiran 2025 – – – – -0.010(5) – – –
Almeida et al. 2025 2.23 1.89 – 716 – 205 – –
Hunt & Reffert 2024 2.71 2.01 2.02 581 – 394(1) – –
Cavallo et al. 2024 2.56 2.11 – 912 0.020 – – –
Hunt & Reffert 2023 2.71 2.02 2.02 581 – – – –
Almeida et al. 2023 2.35 2.01 – 767 -0.063 122(1) 0.58 –
Just et al. 2023 – – – 398 – 3381 – –
Jadhav & Subramaniam 2021 2.98 1.12 – 3388 – 631 – 3(1)
Dias et al. 2021 2.23 1.89 – 716 -0.013 – – –
Cantat-Gaudin et al. 2020 2.98 1.12 – 3388 – – – –
Kounkel et al. 2020 3.10 2.29 – 661 – – – –
Cantat-Gaudin & Anders 2020 2.99 – – – – – – –
Soubiran et al. 2018 2.99 – – – – – – –
Cantat-Gaudin et al. 2018 2.99 – – – – – – –
Kharchenko et al. 2016 7.50 3.15 – 398 – – – –
Kharchenko et al. 2013 7.50 3.15 – 398 – – – –
Kharchenko et al. 2012 7.50 3.15 – 398 – – – –
Dias et al. 2002 7.50 3.15 – 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
OC 0238 41.0 25.22 64.51 0.34 -3.27 0.06 -47.88 0.0

💡 Note: The % column shows the percentage of members that FSR 0553 shares with each listed object.

Visualization
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FSR 0553 UCC
FSR 0553 HUNT23
FSR 0553 CANTAT20
Galactocentric position diagram