M46 and Planetary Nebula NGC 2438
Location: Banglamung, Thailand (100 59 E, 12 55 N)
Date: 29 Jan 2011
Camera: QHY-9 and QHY filters
Telescope: William Optics FLT110
Frames: Six 5 minute exposures in each of RGB.
Processing: Stacked in CCDStack, light polution gradients removed, curves, selective
unsharpened and diffraction spikes added in Photoshop CS5.
Comments: This image of the open cluster M46 contains the planetary nebula known as NGC 2438 that lies between
us and M46. There is also a smaller planetary nebula in the central left of the image known as PLN 231+4.1 (you may
need to click the image to get the larger version).