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Images-Bob-Colvert


Bob Colvert

Bob does Electronically Assisted Astronomy (EAA).  EAA sits between visual astronomy and astrophotography.  A camera replaces the eye piece and gives live viewing on a screen.  For faint objects software stacks up photons in real time, results show on the screen in seconds and improve with exposure time.  None of these EAA photos have had post processing accept perhaps croping.

Bob uses a Celestron 8″ NexStar Evolution Computerized Telescope with StarSense autoalign.  The image train is a Optilong L-pro filter, a Starizona Night Owl .4x SCT Reducer and Corrector with a ZWO asi290 color camera.  Camera control and image stacking and capture is done using SharpCap software and a laptop PC.


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  • Western Veil Nebula
  • Stack_39frames_195s_WithDisplayStretch
  • Stack_32frames_640s_WithDisplayStretch - Copy
  • Stack_30frames_600s_WithDisplayStretch
  • Robert_Colvert_M81_Bodes_Galexy_2023_02_11
  • NGC6946 Fireworks Galaxy Stack_25frames_375s_WithDisplayStretch
  • M57 Stack_56frames_840s_WithDisplayStretch
  • M27 Stack_64frames_960s_WithDisplayStretch
  • M17 Stack_11frames_110s_WithDisplayStretch
  • M16 Stack_44frames_660s_WithDisplayStretch
  • M13 Stack_1frames_5s_WithDisplayStretch
  • M8 Lagoon Nebula Stack_11frames_165s_WithDisplayStretch
  • M 106 Stack_28frames_840s_WithDisplayStretch
  • M 82 Cigar Galaxy Stack_16frames_480s_WithDisplayStretch
  • M 81 Bode Galaxy Stack_26frames_780s_WithDisplayStretch
  • Crab Nebula
  • Bob_Colvert_Stack_124frames_992s_WithDisplayStretch
  • Bob_Colvert_Stack_34frames_510s_WithDisplayStretch
  • Bob_Colvert_Stack_31frames_465s_WithDisplayStretch
  • Bob_Colvert_Stack_27frames_405s_WithDisplayStretch
  • Bob_Colvert_M101_with_SN 2023ixf_EAA
  • Bob C Sun 12 16 23 With Seestar
  • Bob C Seestar telescope
  • Bob C Moon 12 17 23 with Seestar
  • Bob C M31 12 17 23 with Seestar
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