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M 1, The Crab Nebula

M 1 LRGB

March 17th, 2018

The Crab nebula is the remnants of a supernova that went off in 1054. Ancient Chinese astronomers recorded this event, calling it a new star (hence the term “nova” later given to these events). It was even visible during the day for a brief while, but has faded to a dim magnitude 8 in the thousand years since the explosion occurred. This supernova is one of a handful that have been recorded in our galaxy, at a distance of about 6,000 light-years.

I noticed something rather curious while I was processing this image. Just to the left of the crab is a small star like object that appears only in my blue data. It is important to note that the blue data was taken nearly 4 days after the other channels, meaning that the object seems to just have appeared. Also, it does not streak through the FOV like an asteroid would. As you can see in the images below, the object seems to just appear in the image. Please contact me and let me know what you think this could be. I couldn’t find it anywhere in my red or green frames.

Blue

Green

Red

 

 

 

 

Capture details:

Captured on: January 21st, 2018

Gear:
AT6RC, 1370mm @ F/9
ZWO ASI 1600mm-C
ZWO EFW-8
ZWO filters
Skywatcher NEQ6 Pro
Orion SSAG

Acquisition:

Luminance: Astronomik CLS filter(1.25″), 20x240s, -15C, 1×1 bin, Unity Gain
Red: ZWO Red filter(1.25″), 10x120s, -15C, 1×1 bin, Unity Gain
Green: ZWO Green filter(1.25″), 10x120s, -15C, 1×1 bin, Unity Gain
Blue: ZWO Blue filter(1.25″), 10x120s, -15C, 1×1 bin, Unity Gain

Total Aquisition of 2hr 20min

Software:
PS, DSS, PHD2, SGP, EQMOD

Thanks for looking!