FSR 1275

(SAI 77; MWSC 1233)

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0.57 UTI
0.3
CN
1.0
Cdens
0.25
CC3
0.65
Clit
1.0
Cdup
C3 classification DB
Number of members (P>50%) 30
Radius (P>50% members) 3.4 [arcmin]
  • CN 0.3 Poorly populated
  • Cdens 1.0 Very dense
  • CC3 0.25 Low quality
  • Clit 0.65 Moderately 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 1275 is a poorly populated, very dense 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 massive, near-solar metallicity, old cluster (see Parameters). It is moderately studied in the literature.

(*): The parallax distance estimate (~2.37 kpc) differs significantly from the median photometric distance (~3.75 kpc).

Distant Moderate extinction Massive Near-solar metallicity Old

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for FSR 1275 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 – 112.032 -21.785 0.422 -2.142 2.195 –
Hunt & Reffert 2024 112.02 -21.771 0.424 -2.125 2.208 –
Cavallo et al. 2024 112.047 -21.748 0.423 – – –
Hunt & Reffert 2023 112.02 -21.771 0.424 -2.125 2.208 –
Just et al. 2023 112.007 -21.788 – – – –
Bica et al. 2019 112.026 -21.8 – – – –
Kharchenko et al. 2016 112.007 -21.788 – – – –
Dias et al. 2014 112.025 -21.796 – -1.79 0.06 –
Kharchenko et al. 2013 112.012 -21.79 – -2.91 2.71 –
Glushkova et al. 2010 112.026 -21.796 – – – –
Froebrich et al. 2007 112.021 -21.796 – – – –
Dias et al. 2002 112.025 -21.796 – -1.79 0.06 –

💡 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
Hunt & Reffert 2024 – – – – – 380* – –
Cavallo et al. 2024 2.57 1.60 – 29 0.220 – – –
Hunt & Reffert 2023 2.17 1.12 1.02 26 – – – –
Just et al. 2023 – – – 2512 – 5483 – –
Kharchenko et al. 2016 4.54 2.06 – 2512 – – – –
Kharchenko et al. 2013 4.54 2.06 – 2512 – – – –
Glushkova et al. 2010 3.75 1.86 – 2512 – – – –
Dias et al. 2002 3.75 1.86 – 2512 – – – –

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

Visualization
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FSR 1275 UCC
FSR 1275 HUNT23
Galactocentric position diagram