HSC 297

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0.12 UTI
0.0
CN
0.21
Cdens
0.5
CC3
0.0
Clit
0.84
Cdup
Radius (P>50% members) 30.2 [arcmin]
  • CN 0.0 Sparse
  • Cdens 0.21 Very loose
  • CC3 0.5 Intermediate quality
  • Clit 0.0 Rarely studied
  • Cdup 0.84 Very likely unique

Overview

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HSC 297 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by low extinction. It is catalogued as a young cluster (see Parameters). It was recently reported in the literature.

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

âš 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.

Very close Low extinction Young

Hunt & Reffert (2024)
Classified as a moving group.

Data

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Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 270.704 2.757 1.942 0.417 -8.662 -4.844
Hunt & Reffert 2023 270.786 2.736 2.206 0.382 -8.628 -24.242

💡 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 2023 0.44 0.22 0.53 29 – – – –
Cluster % RA DEC Plx pmRA pmDE Rv UTI
CWWDL 14664 16.0 270.36 3.03 1.79 0.64 -8.88 -7.34 0.18
Melotte 186 16.0 270.41 3.16 1.79 0.65 -8.83 -7.42 0.92
CWNU 1188 4.0 269.91 2.93 2.36 0.14 -8.26 -14.99 0.25

💡 Note: The % column shows the percentage of members that HSC 297 shares with each listed object.

Visualization

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