NGC 6193

Source: Wikipedia, the free encyclopedia.
NGC 6193
Caldwell 82
Associations
ConstellationAra
See also: Open cluster, List of open clusters

NGC 6193 (also known as Caldwell 82) is open cluster containing 27 stars in the constellation Ara, visible to the unaided eye.[1] NGC 6193 lies at the center of the Ara OB1 association, which extends over a square degree. The cluster is associated with (and provides the energizing radiation for) neighboring regions of the nebulosity NGC 6188.

Cluster members

NGC 6193 is dominated by two O class multiple star systems within 10" of each other at the centre of the cluster, and a probable binary B0 giant. There are at least 20 other early B stars in the cluster, of 9th and 10th magnitude.

#[2] Name Right ascension Declination mV Spectral type Comment
56 HD 150136 16h 41m 20.4149s −48° 45′ 46.644″ 5.62 O3−3.5 V + O5.5−6 V + O6.5−7 V[3] Triple system
55 HD 150135 16h 41m 19.4537s −48° 45′ 47.585″ 6.89 O6.5V((f))z[4] Binary[5]
45 HD 150041 16h 40m 44.5820s −48° 45′ 22.214″ 7.06 B0III Variable[6]
37 HD 149834 16h 39m 30.6704s −48° 51′ 02.511″ 9.17 B2V Binary?[6]
59 CD-48 11080 16h 41m 36.3084s −48° 47′ 14.904″ 10.32 B4V [6]
CD-48 11077 16h 41m 34.91s −48° 46′ 24.2″ 10.42 B2.5V [6]
58 CD-48 11075 16h 41m 33.21s −48° 45′ 06.6″ 10.05[7] B2.5V[5]
54 CD-48 11071 16h 41m 25.8569s −48° 45′ 14.265″ 8.45 B1V Binary[6]
53 CD-48 11069 16h 41m 22.10s −48° 44′ 57″ 9.55 B1V [6]
40 CD-48 11039 16h 40m 00.752s −48° 47′ 02.41″ 11.02[8] B3V[5]
42 CD-48 11046 16h 40m 20.94s −48° 54′ 56.2″ 10.91[8] B2.5V[5]
43 CD-48 11051 16h 40m 33.8837s −48° 53′ 16.19″ 10.39 B1h [6]
CD-48 11060 16h 40m 43s −48° 48.8′ 10.71 B3V [6]
47 CD-48 11061 16h 40m 53.26s −48° 45′ 35.2″ 11.21[8] B3.5V[5] binary[5]
50 CD-48 11062 16h 41m 02.49s −48° 53′ 49.7″ 11.42[7] B3.5V[5]
52 CD-48 11065 16h 41m 08.48s −48° 52′ 21.6″ 11.06[7] B2.5V[5] Wrongly cross-referenced to HD 150136 in Herbst[8]
57 CD-48 11076 16h 41m 33.0589s −48° 33′ 59.651″ 10.10 B2V [6]
63 CD-48 11082 16h 41m 6.3148s −48° 47′ 41.527″ 10.38 B2V [6]
65 CD-48 11086 16h 41m 54.83s −48° 45′ 22.8″ 10.38 B2.5V [6]
66 CD-48 11088 16h 42m 00.47s −48° 42′ 32.5″ 10.05 B2.5V [6]
67 CD-48 11090 16h 42m 05.69s −48° 42′ 56.8″ 10.59 B2.5V [6]
  • Star cluster NGC 6193 and nebula NGC 6188.[9]
    Star cluster NGC 6193 and nebula NGC 6188.[9]
  • Map showing the location of NGC 6193.
    Map showing the location of NGC 6193.

References

  1. ^
    ISBN 978-0-00-717223-8
    .
  2. doi:10.1093/mnras/125.2.105
    .
  3. S2CID 41993530
    .
  4. S2CID 118847528
    .
  5. ^
    S2CID 13989261
    .
  6. ^
    doi:10.1086/132273
    .
  7. ^
    Bibcode:1992A&AS...92..863V
    .
  8. ^
    Bibcode:1977A&AS...30..279H
    .
  9. ^ "Star cluster NGC 6193 and nebula NGC 6188". Retrieved 18 June 2015.
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