FSR 1739

(MWSC 2521)

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0.15 UTI
0.0
CN
0.01
Cdens
0.25
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members) 7.2 [arcmin]
  • CN 0.0 Sparse
  • Cdens 0.01 Very loose
  • CC3 0.25 Low quality
  • Clit 0.25 Poorly studied
  • Cdup 1.0 Unique

Overview

FSR 1739 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large* distance, below the mid-plane, affected by high extinction. It is catalogued as a low-mass, young cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~8.65 kpc) differs significantly from the median photometric distance (~1.05 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 High extinction Low mass Young

Data

Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 255.814 -47.144 0.116 -2.774 -3.809 -65.329
Just et al. 2023 255.807 -47.152
Kharchenko et al. 2016 255.807 -47.152
Kharchenko et al. 2013 255.817 -47.152 -1.32 -3.33
Froebrich et al. 2007 255.8 -47.163

💡 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 50 22
Kharchenko et al. 2016 1.05 3.23 50
Kharchenko et al. 2013 1.05 3.23 50

💡 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.