Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent nebula  ·  IC 4996  ·  NGC 6888  ·  The star 34Cyg
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NGC6888 - 20190929 - TAMRON 135mm - Ha, altazastro
NGC6888 - 20190929 - TAMRON 135mm - Ha
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NGC6888 - 20190929 - TAMRON 135mm - Ha

Getting plate-solving status, please wait...
NGC6888 - 20190929 - TAMRON 135mm - Ha, altazastro
NGC6888 - 20190929 - TAMRON 135mm - Ha
Powered byPixInsight

NGC6888 - 20190929 - TAMRON 135mm - Ha

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Description

The pairing of a BaaderFringeKiller filter with an Astronomik IR 642 IRPASS filter creates a 35 nm wide filter centered on the H-alpha line at 656 nm.

Unfortunately with a vintage achromatic lens open at F 2.8, brighter stars appear nevertheless bloated or with halos.

Comments

Revisions

  • Final
    NGC6888 - 20190929 - TAMRON 135mm - Ha, altazastro
    Original
  • NGC6888 - 20190929 - TAMRON 135mm - Ha, altazastro
    B

B

Description: A more subdued, less stretched version.

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NGC6888 - 20190929 - TAMRON 135mm - Ha, altazastro