Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  Horsehead nebula  ·  IC 423  ·  IC 426  ·  IC 431  ·  IC 432  ·  IC 434  ·  IC 435  ·  NGC 1973  ·  NGC 1975  ·  NGC 1977  ·  NGC 1981  ·  NGC 1990  ·  NGC 2023  ·  NGC 2024  ·  Part of the constellation Orion (Ori)  ·  The star 31Ori  ·  The star 42Ori  ·  The star Alnilam (εOri)  ·  The star Alnitak (ζOri)  ·  The star Mintaka (δOri)  ·  The star σOri
Getting plate-solving status, please wait...
Orion belt IC434 / Pentax K30D astrodon + Takumar 200mm f/4 for 6x7, patrick cartou
Orion belt IC434 / Pentax K30D astrodon + Takumar 200mm f/4 for 6x7
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Orion belt IC434 / Pentax K30D astrodon + Takumar 200mm f/4 for 6x7

Getting plate-solving status, please wait...
Orion belt IC434 / Pentax K30D astrodon + Takumar 200mm f/4 for 6x7, patrick cartou
Orion belt IC434 / Pentax K30D astrodon + Takumar 200mm f/4 for 6x7
Powered byPixInsight

Orion belt IC434 / Pentax K30D astrodon + Takumar 200mm f/4 for 6x7

Equipment

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Acquisition details

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Description

Takumar lens 200mm f/4.0 for medium format 6x7 full open

First stacking (SIRIL 0.9.12 drizzlerx2) with quite old flats.

New stacking with new flats….but a poor result however.

Maybe absence of a heating sleeve on the lens (the two mine already installed on the SW80ED and the guiding scope just near) with an important ambient humidity could explain some difficulty to avoid spots and dew drops…???

Comments

Revisions

  • Orion belt IC434 / Pentax K30D astrodon + Takumar 200mm f/4 for 6x7, patrick cartou
    Original
  • Final
    Orion belt IC434 / Pentax K30D astrodon + Takumar 200mm f/4 for 6x7, patrick cartou
    B

B

Description: New stacking with new flats...not really conclusive !

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Sky plot

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Orion belt IC434 / Pentax K30D astrodon + Takumar 200mm f/4 for 6x7, patrick cartou