FSR 0784

(Koposov 7)

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0.24 UTI
0.0
CN
0.68
Cdens
0.75
CC3
0.0
Clit
0.84
Cdup
N50 (P>50% members) 21
Stellar density (N50/rad) 3.4 [N/pc2]
C3 classification AB
  • CN 0.0 Sparse
  • Cdens 0.68 Moderately dense
  • CC3 0.75 High quality
  • Clit 0.0 Rarely studied
  • Cdup 0.84 Very likely unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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FSR 0784 is a sparse, moderately dense object of high C3 quality. Its parallax locates it at a relatively close* distance, above the mid-plane, affected by extremely high extinction. It is catalogued as an intermediate-age cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 16 years.

(*): The parallax distance estimate (~1.68 kpc) differs significantly from the median photometric distance (~4.76 kpc).

Note: This is very likely a unique object, which shares a small percentage of members with at least one previously reported entry, and a moderate percentage with at least one entry reported in the same catalogue. See table with shared members information.

⚠ī¸ Warning: the low UTI value and no obvious signs of duplication (Cdup=0.84) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Data
🔍 Search references for FSR 0784 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– 85.199 35.887 0.596 0.35 -2.972 -4.382
Glushkova et al. 2010 85.184 35.924 – – – –
Froebrich et al. 2007 85.2 35.918 – – – –

💡 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– 4.76 11.62 – 158 – – – –
Glushkova et al. 2010 4.76 11.62 – 158 – – – –
Cluster % RA DEC Plx pmRA pmDE Rv UTI
Sh2 235 80.0 85.22 35.89 0.59 0.3 -2.97 – 0.06
BDSB 73 32.0 85.36 35.86 0.59 0.46 -2.96 -4.38 0.17
FSR 0788 32.0 85.35 35.81 0.6 0.35 -2.83 – 0.17
S235B 16.0 85.24 35.71 0.6 0.25 -2.87 -55.96 0.35

💡 Note: The % column shows the percentage of members that FSR 0784 shares with each listed object.

Visualization
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FSR 0784 UCC
Galactocentric position diagram