HSC 640

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UTI:
UCC Trust Index

C_N C_dens C_C3 C_lit C_dup
0.81 1.0 0.75 0.25 0.78
C3
N_50
r_50
AB 261 7.4
Summary

HSC 640 is a rich, very dense object of high C3 quality. It is located at a relatively close distance from the Sun, near the mid-plane. It was recently reported in the literature.

This is very likely a unique object, which shares a small percentage of members with at least one previously reported entry.

Search object in SciX | Simbad

Positions

Reference RA DEC Plx pmRA pmDE Rv
Hunt & Reffert (2023) 309.774 42.12 0.654 -2.356 -3.44 11.588
Cavallo et al. (2024) 309.557 42.408 0.65 – – –
Hunt & Reffert (2024) 309.774 42.12 0.654 -2.356 -3.44 11.588
           
UCC 309.736 42.147 0.678 -2.319 -3.43 1.133
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

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Estimated members

HSC 640 UCC
HSC 640 HUNT23

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Fundamental parameters

Reference Values
Hunt & Reffert (2023) AV50=5.051, diffAV50=3.093, MOD50=10.859, logAge50=7.152
Cavallo et al. (2024) AV50=4.43, dMod50=11.15, logAge50=7.2, [Fe/H]50=0.62
Hunt & Reffert (2024) MassJ=1794.63, MassTot=2487.59

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster % RA DEC Plx pmRA pmDE Rv UTI
DB2001 16 21.8 309.65 42.11 0.69 -2.53 -3.27 114.81 0.44
FSR 0245 9.6 309.69 42.15 0.69 -1.91 -3.61 21.62 0.5
OC 0131 6.9 309.63 42.48 0.63 -2.37 -3.34 -11.77 0.12
FSR 0249 5.0 309.63 42.49 0.62 -2.37 -3.31 -23.49 0.6