OCSN 98

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0.55 UTI
0.76
CN
1.0
Cdens
1.0
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members) 50.5 [arcmin]
  • CN 0.76 Rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very high quality
  • Clit 0.0 Rarely studied
  • Cdup 1.0 Unique

Overview

OCSN 98 is a rich, very dense object of very high 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, very young cluster (see Parameters). It was recently reported in the literature.

Note: This object shares a very small percentage of members with at least one entry reported in the same catalogue. See table with shared members information.

Very close Low extinction Near-solar metallicity Very young

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

Cavallo et al. (2024): Silver sample.

Data

Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 241.26 -19.698 6.561 -9.892 -21.689 -7.92
Cavallo et al. 2024 241.261 -19.717 6.564
Hunt & Reffert 2023 241.301 -19.743 6.564 -9.986 -21.698 -10.865
Qin et al. 2023 241.3 -19.78 6.6 -9.86 -21.76 -6.78

💡 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 0.15 1.49 8 -0.370
Hunt & Reffert 2023 0.15 0.56 0.74 4
Qin et al. 2023 0.17 0.31 7

💡 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.

Cluster % RA DEC Plx pmRA pmDE Rv UTI
OCSN 246 4.3 244.71 -24.21 6.77 -10.35 -22.98 -6.68 0.59
OCSN 96 1.7 240.86 -22.58 7.02 -11.74 -23.9 -7.43 0.67

💡 Note: The % column shows the percentage of members that OCSN 98 shares with each listed object.

Visualization

Galactocentric position diagram

💡 Note: How are the galactocentric plots generated? See FAQ.