OCSN 86

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0.27 UTI
0.27
CN
0.6
Cdens
0.5
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members) 39.7 [arcmin]
  • CN 0.27 Poorly populated
  • Cdens 0.6 Moderately dense
  • CC3 0.5 Intermediate quality
  • Clit 0.0 Rarely studied
  • Cdup 1.0 Unique

Overview

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OCSN 86 is a poorly populated, moderately dense object of intermediate C3 quality. Its parallax locates it at a very close distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It was recently reported in the literature.

Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.

Very close Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

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 – 138.338 -29.913 3.841 -20.494 16.166 25.189
Cavallo et al. 2024 138.616 -30.385 3.865 – – –
Hunt & Reffert 2023 138.258 -29.747 3.833 -20.763 16.373 25.366
Qin et al. 2023 138.66 -30.42 3.84 -20.13 15.97 24.62

💡 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
Cavallo et al. 2024 0.27 0.53 – 417 0.420 – – –
Hunt & Reffert 2023 0.26 0.16 0.60 120 – – – –
Qin et al. 2023 0.32 0.46 – 79 – – – –
Cluster % RA DEC Plx pmRA pmDE Rv UTI
LISC-III 3783 81.5 138.41 -29.89 3.84 -20.48 16.14 25.19 0.03

💡 Note: The % column shows the percentage of members that OCSN 86 shares with each listed object.

Visualization

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