6 minute subframes from Bortle 5-6...North American and Pelican Nebula (Dave Erickson)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: IC 5068 · IC 5070 · NGC 6989 · NGC 6997 · NGC 7000 · North America Nebula · Pelican Nebula · The star 55 Cyg · The star 56 Cyg · The star 57 Cyg · The star 60 Cyg

6 minute subframes from Bortle 5-6...North American and Pelican Nebula, Dave Erickson

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6 minute subframes from Bortle 5-6...North American and Pelican Nebula

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6 minute subframes from Bortle 5-6...North American and Pelican Nebula

1) First night of star testing a new 4.5" F/4 astrograph. This is a single 6 minute exposure using a 5nm Halpha filter from my Bortle 5 backyard. . The Bright, and one of my Favorites, North American and Pelican Nebula.

2) An Image of the astrograph being tested in the backyard

3) an image from (3) 6 minute subframes, after an adjustment of the lens to better balance spherical aberration. a 2x improvement in FWHM spot size and a much better imaging result.

Original
B
Final
C

B

Title: Awaiting Darkness...New 4.5" F/4 Astrograph at sunset

Description: First night Star Testing new 4.5" F/4 Astrograph in Bortle 5-6 backyard.

Uploaded: ...

C

Description: Improved system performance by an adjustment of the lens to improve and better balance spherical aberration. Also included the stars and integrated (3) 6-minute exposures using the same 5nm Halpha Chroma filter.

Uploaded: ...

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Status	Advanced failed
Started	...
PixInsight job	ZSUVST607R5JOBRAQPD9GCHKJ0HL1KHZ
PixInsight queue size	n/a
PixInsight stage	PLATE_SOLVING_IMAGE

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6 minute subframes from Bortle 5-6...North American and Pelican Nebula

6 minute subframes from Bortle 5-6...North American and Pelican Nebula

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6 minute subframes from Bortle 5-6...North American and Pelican Nebula

6 minute subframes from Bortle 5-6...North American and Pelican Nebula

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