FSR 1158

(MWSC 1136)

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0.16 UTI
0.0
CN
0.07
Cdens
0.12
CC3
0.31
Clit
1.0
Cdup
Radius (P>50% members) 5.3 [arcmin]
  • CN 0.0 Sparse
  • Cdens 0.07 Very loose
  • CC3 0.12 Very low quality
  • Clit 0.31 Poorly studied
  • Cdup 1.0 Unique

Overview

FSR 1158 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate* distance, above the mid-plane, affected by moderate extinction. It is catalogued as an intermediate-age cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~4.81 kpc) differs significantly from the median photometric distance (~1.86 kpc).

⚠️ Warning: the low UTI value and no obvious signs of duplication (Cdup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close Moderate extinction Intermediate age

Data

Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 107.686 -6.819 0.208 -0.874 -0.178 57.763
Just et al. 2023 107.694 -6.777
Bica et al. 2019 107.688 -6.796
Kharchenko et al. 2016 107.694 -6.777
Kharchenko et al. 2013 107.7 -6.78 0.7 -1.05
Froebrich et al. 2007 107.688 -6.79

💡 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
Just et al. 2023 359 285
Kharchenko et al. 2016 1.86 1.42 359
Kharchenko et al. 2013 1.86 1.42 359

💡 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.

Visualization

Galactocentric position diagram

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