Celestial hemisphere:  Northern  ·  Constellation: Vulpecula (Vul)  ·  Contains:  1 Sge  ·  2 Sge  ·  2 Vul  ·  3 Sge  ·  4 Vul  ·  6 Vul)  ·  6 alf Vul  ·  7 Vul  ·  8 Vul  ·  9 Vul  ·  Anser  ·  HD179148  ·  HD179218  ·  HD179371  ·  HD179423  ·  HD179462  ·  HD179486  ·  HD179528  ·  HD179558  ·  HD179586  ·  HD179588  ·  HD179736  ·  HD180054  ·  HD180124  ·  HD180216  ·  HD180242  ·  HD180352  ·  HD180377  ·  HD180451  ·  HD180684  ·  And 1155 more.
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Collinder 399 (Brocchi's Cluster or Coat Hanger asterism), Ben Hayes
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Collinder 399 (Brocchi's Cluster or Coat Hanger asterism)

Getting plate-solving status, please wait...
Collinder 399 (Brocchi's Cluster or Coat Hanger asterism), Ben Hayes
Powered byPixInsight

Collinder 399 (Brocchi's Cluster or Coat Hanger asterism)

Equipment

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Acquisition details

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Description

Located in constellation Vulpecula, this image was taken using a vintage Nikon Micro-NIKKOR 105mm f/2.8 AI-S camera lens stopped down to aperture f/5.6.  I did not use step-down rings, hence the diffraction spikes around the stars.  A great lens for macro-photography, I've had this lens in my kit for over 40 years and use it for close-up shots of insects, plants, and mineral specimens.  I was a bit surprised to see that it also does fairly well at infinity focus for astrophotography.   However, I have not had good luck with step down rings on this lens (to remove diffraction spikes around stars).  Chromatic aberration creeps when you open the lens iris blades for aperatures below 5.6.

Comments

Revisions

  • Final
    Collinder 399 (Brocchi's Cluster or Coat Hanger asterism), Ben Hayes
    Original
  • Collinder 399 (Brocchi's Cluster or Coat Hanger asterism), Ben Hayes
    B
  • Collinder 399 (Brocchi's Cluster or Coat Hanger asterism), Ben Hayes
    C

B

Description: Same as original (Revision A), but with acquisition details provided at bottom o image.

Uploaded: ...

C

Description: Close-up of Coat Hanger asterism.

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Sky plot

Sky plot

Histogram

Collinder 399 (Brocchi's Cluster or Coat Hanger asterism), Ben Hayes

In these public groups

Cloudy Nights