Friday, February 12, 2016

M43 - De Mairan´s Nebula (The Other Nebula)

This post is an addendum to my previous image of M42 - The Great Orion Nebula.  I basically just cropped the image of M42 I took the previous week and centered on M43, De Mairan's Nebula.  This is the other nebula that pretty much always gets imaged with the Great Orion Nebula as it is part of it. Short exposures show a separation but then you don't get the detail.

On his website Fred Espenak describes the De Mairan's Nebula as a "tear dropped shaped nebula that is physically part of the much larger Great Nebula in Orion (M42) although it appears separated by a dark dust lane in the foreground. The entire area is a complex region of active star formation where some of the hotest and brightest stars are coalescing. Composed of glowing gas and dark dust, M43 and M42 are part of the Orion Molecular Cloud Complex. This huge region also includes the Horsehead Nebula located south of Zeta Orionis (Alnitak), the easternmost star in the Belt of Orion."

M43 - De Mairan´s Nebula
Location: Monroe, CT
Date/Time: 2/5/16 9:17 pm
Camera: Canon EOS Rebel T3i, Backyard EOS
Filter: Astronomik CLS, 2" (48mm)
Telescope: Orion ED80 80mm f/7.5 Apochromatic Refractor Telescope
Mount: Orion Sirius EQ-G GoTo Telescope Mount
Autoguiding: QHY-5L-II-M attached to and Orion Short Tube 80mm
Focal Length: 600mm
Exposure: 7-300s, 10-60s, 10-10s, 1-10s (total exposure, 46min 50s)
ISO: 800
Post Processing: Deep Sky Stacker, Photoshop, Lightroom

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