Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  37 Cyg)  ·  IC 1311  ·  NGC 6910  ·  The star Sadr (γ Cyg
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Sadr, the Butterfly, and the Sailfish (S-Hb-Hb Palette), LittleGhost
Sadr, the Butterfly, and the Sailfish (S-Hb-Hb Palette)
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Sadr, the Butterfly, and the Sailfish (S-Hb-Hb Palette)

Getting plate-solving status, please wait...
Sadr, the Butterfly, and the Sailfish (S-Hb-Hb Palette), LittleGhost
Sadr, the Butterfly, and the Sailfish (S-Hb-Hb Palette)
Powered byPixInsight

Sadr, the Butterfly, and the Sailfish (S-Hb-Hb Palette)

Equipment

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Acquisition details

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Description

The summer brings out one of the most spectacular constellations of the Northern sky.  It's a trove of objects for any focal length.  In this attempt I've turned to Redcat wide-field lens and, encouraged by my previous attempts, decided to prepare the first take in the S-Hb-Hb palette provided by my Antlia SHb filter.

In this picture S is Red, there's no oxygen signal, green/blue is H!

Both of S and Hb are rather weak signals so in order to achieve good SNR it is necessary to gather at least twice the amount material compared to the conventional Ha-O process.

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Sky plot

Sky plot

Histogram

Sadr, the Butterfly, and the Sailfish (S-Hb-Hb Palette), LittleGhost

In these public groups

WO Redcat 51 Group
Poland