IC417 - aka The Spider & The Fly - SHO + RGB

Below is the composite image of IC417 where I've added H-Alpha and SII at 100% to the Red channel, OIII at 50% to the green channel and Ha and OIII
at 20% and 50% respectively to the blue channel.

IC417 in NB+RGB


Below is the pure RGB:

Sh2_232_HaRGB

Above is the pure RGB image. Below is the pure narrowband image done in the SHO (Sulfer - Hydrogen - Oxygen) palette but with the RGB stars layered in to recover their colour.

IC417 in SHO+RGB Stars

-----------------------------------------------------------------
From my friend Don Waid's webpage for this target ( http://www.waid-observatory.com/ic417-2020-01-19-HOO.html ): 

IC417 & NGC 1931, commonly known as the Spider and Fly Nebula.  They are located approximately 10,000 and 7,000 light-years respectively from the Earth in the constellation Auriga.  These two nebulae are composed of massive clouds of gas and dust and is the site of new stellar birth.  The gas in the nebula is excited by a clusters of massive, relatively newly formed, stars located near their centers.  The large nebula on the left side of the image is the Spider and the small nebula is the Fly.  The two bright stars in the Spider are foreground objects and not part of the nebula.  The brightest star is designated Phi Aurigae and is only about 450 light years from the Earth.

-----------------------------------------------------------------

Scope: AP155EDF w Focus Boss II
Camera: Moravian G4 (16803 ccd) w Astrondon Gen II HaLRGB filters
Mount: Paramount MX
Guided w ST-402 and Borg 60mm guidescope
Acquired using TheSkyX
9/9/9 x 10 min RGB
3/10/15 x 20 min SII / H-Alpha / OIII
All calibration done in PixInsight
RGB and pure SHO processed separately in PixInsight;
Stars removed from the SHO image using StarXTerminator
Stars temporarily removed from RGB then added back.
SHO (starless)+RGB Stars combine in PixInsight
Lucknow, Ontario
February 2023

Home