FSR 1260

(MWSC 1235)

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0.80 UTI
0.75
CN
1.0
Cdens
0.75
CC3
0.75
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 104
Radius (P>50% members) 4.5 [arcmin]
  • CN 0.75 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.75 Well-studied
  • Cdup 1.0 Unique
📥 Members 📊 Colab 🔬 Bayestar19 🔍 SciX 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview
FSR 1260 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near 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 mass parameter (see Parameters). It is well-studied in the literature.
Relatively close Moderate extinction Near-solar metallicity Intermediate age

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

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 – 112.078 -19.673 0.34 -3.178 3.425 50.568
Almeida et al. 2025 112.09 -19.684 – – – –
Hunt & Reffert 2024 112.081 -19.674 0.341 -3.178 3.435 39.243
Cavallo et al. 2024 112.07 -19.683 0.342 – – –
Hunt & Reffert 2023 112.081 -19.674 0.341 -3.178 3.435 39.243
Just et al. 2023 112.104 -19.678 – – – –
Dias et al. 2021 112.09 -19.684 0.315 -3.18 3.425 –
Cantat-Gaudin et al. 2020 112.088 -19.679 0.321 -3.159 3.444 –
Soubiran et al. 2018 112.088 -19.679 – – – 61.98
Cantat-Gaudin et al. 2018 112.088 -19.679 0.321 -3.159 3.444 –
Kharchenko et al. 2016 112.104 -19.678 – – – –
Kharchenko et al. 2013 112.11 -19.68 – -3.43 6.6 –
Froebrich et al. 2007 112.108 -19.689 – – – –

💡 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
Almeida et al. 2025 2.69 1.35 – 82 – 247 – –
Hunt & Reffert 2024 – – – – – 391* – –
Cavallo et al. 2024 3.19 1.37 – 58 0.180 – – –
Hunt & Reffert 2023 2.80 1.06 1.04 138 – – – –
Just et al. 2023 – – – 200 – 26 – –
Dias et al. 2021 2.69 1.35 – 82 -0.066 – – –
Cantat-Gaudin et al. 2020 2.99 0.71 – 141 – – – –
Soubiran et al. 2018 2.86 – – – – – – –
Cantat-Gaudin et al. 2018 2.86 – – – – – – –
Kharchenko et al. 2016 1.41 0.78 – 200 – – – –
Kharchenko et al. 2013 1.41 0.78 – 200 – – – –

💡 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.

Visualization
FSR 1260 UCC
FSR 1260 HUNT23
FSR 1260 CANTAT20
Galactocentric position diagram

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