OCSN 56

Click to load Aladin Lite
0.20 UTI
0.7
CN
1.0
Cdens
1.0
CC3
0.25
Clit
0.31
Cdup
Radius (P>50% members) 33.1 [arcmin]
  • CN 0.7 Moderately populated
  • Cdens 1.0 Very dense
  • CC3 1.0 Very high quality
  • Clit 0.25 Poorly studied
  • Cdup 0.31 Possibly duplicate

Overview

â„šī¸
OCSN 56 is a moderately populated, very dense object of very high C3 quality. Its parallax locates it at a very close distance, below 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.

âš ī¸ Warning: This is possibly a duplicate object, which shares a significant percentage of members with at least one previously reported entry, and a significant percentage 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

Cavallo et al. (2024)
Gold sample.

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

Data

â„šī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 82.645 2.366 2.526 -0.816 0.526 31.28
Zhang et al. 2024 83.578 2.629 – – – –
Cavallo et al. 2024 83.432 3.614 2.389 – – –
Hunt & Reffert 2023 83.578 2.629 2.389 -0.924 0.552 25.552
Qin et al. 2023 82.65 2.51 2.44 -0.8 0.54 29.31

💡 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
Zhang et al. 2024 – – – – -0.018* – – –
Cavallo et al. 2024 0.43 0.80 – 7 -0.220 – – –
Hunt & Reffert 2023 0.41 0.28 0.60 11 – – – –
Qin et al. 2023 0.45 0.25 – 16 – – – –

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster % RA DEC Plx pmRA pmDE Rv UTI
FoF 2371 68.9 82.39 2.02 2.69 -0.68 0.69 29.78 0.13
OCSN 57 58.9 82.08 1.67 2.74 -0.52 0.79 29.19 0.1
ASCC 20 46.7 82.08 1.66 2.75 -0.56 0.78 29.19 0.86

💡 Note: The % column shows the percentage of members that OCSN 56 shares with each listed object.

Visualization

â„šī¸