Cyg OB2

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UTI:
UCC Trust Index

C_N C_dens C_C3 C_lit C_dup
0.8 1.0 1.0 0.25 0.25
C3
N_50
r_50
AA 231 4.5
Summary

Cyg OB2 is a rich, very dense object of very high C3 quality. It is located at a relatively close distance from the Sun, near the mid-plane. It is poorly studied in the literature, with no articles listed in the last 17 years.

Warning: This is possibly a duplicated object, which shares a significant percentage of members with at least one previously reported entry.

Search object in SciX | Simbad

Positions

Reference RA DEC Plx pmRA pmDE Rv
Piskunov et al. (2007) 308.299 41.304 – – – –
Piskunov et al. (2008) 308.299 41.304 – – – –
UCC 308.307 41.3 0.58 -2.72 -4.407 -8.189
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

Search coordinates in CDS | Simbad

Estimated members

Cyg OB2 UCC

Explore data in Colab

Fundamental parameters

Reference Values
Piskunov et al. (2007) E(B-V)=1.3, Dist=1500, logt=6.72, logM=3.548
Piskunov et al. (2008) E(B-V)=1.3, Dist=1500, logt=6.72, logM=4.409, logMA=4.495

Search coordinates in Bayestar19

Cluster region


Objects with shared members

Cluster % RA DEC Plx pmRA pmDE Rv UTI
Bica 2 74.9 308.31 41.3 0.58 -2.68 -4.41 -13.56 0.81
FSR 0238 19.0 308.63 41.39 0.59 -2.84 -4.53 -27.33 0.89
G 80.35+0.72 4.3 308.43 41.38 0.54 -2.83 -4.13 -4.79 0.16
FSR 0236 3.9 308.15 41.43 0.57 -2.41 -4.11 55.7 0.66
OC 0129 1.3 308.06 41.46 0.58 -2.53 -4.04 57.08 0.25
OC 0128 0.9 307.98 40.8 0.58 -2.97 -4.4 38.32 0.74