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By Richard Hather
DSO - M42/M43
Date - 15/03/17
Time - 20:15
Lunar Phase - 89%
Seeing - Good
Equipment - Celestron Nexstar 6SE
Eyepieces - ES 24mm 68 degree
Additional info - Wow is all I can say with this one before last night my favourite Nebula was the eagle Nebula now I'm not so sure.
First thing that struck me when I started observing was the beautiful pattern of stars the 4 close together in the middle with the bottom right one being the brightest and the 3 star at the bottom.
The longer I observed the more detail jumped out at me the swirl of gas almost like an arc was simply breath taking not since I first observed M13 my first ever DSO have I been so overwhelmed.
M43 was a bit strange though I could make out the star but no gas cloud or shape to it it's at mag 7 so shouldn't have been to much of a problem maybe next time I will use one of my Nebula filters but my O lll stayed in its case as I didn't feel the need.
I also spent some time observing Jupiter, I could make out 4 of the moons 2 of which were very close in proximity these turned out to be Euopa and Lo.
The other 2 being Ganymede and Callisto in that order.
I could also make out the 2 main bands of Jupiter the north and south equatorial belts but no luck with the Great Red Spot still beautiful to observe though here's an image of stellarium.
The moon unfortunately was up a bit late but got about 15 mins observation time beautiful crisp craters and lovely shadows again along the terminator.
So a very good session and one of my favourite sketches to date 😊
Clear skies ✨💫🌙☄️
M42 took quite a bit of processing time. That is a bright core even with very short exposures. Then how much of the fainter stuff do you try to pull out? There might be more to be found in the data, but I am trying to keep things looking 'natural'. Then again, what is 'natural'? I'd be interested to hear what people think.
Data capture was completed in February 2017. It consists:
Luminance: 15x15" bin 1x1 Luminance: 16x60" bin 1x1 Luminance: 16x600" bin 1x1 Red: 8x15" bin 1x1 Red: 8x60" bin 1x1 Red: 16x600" bin 1x1 Green: 8x15" bin 1x1 Green: 8x60" bin 1x1 Green: 16x600" bin 1x1 Blue: 8x15" bin 1x1 Blue 8x60" bin 1x1 Blue: 32x600" bin 1x1 TOTAL = 14.2 hours
Astrodon filters from the Tak 106/QSI 683 rig at DSW.
One of my only semi-successful sessions with imaging. This whole thing is still very new to me, and the learning curve seems very steep, which makes it interesting and rewarding though.
Celestron Nexstar 130 SLT
Baader Barlow (Only the lens was used, which was screwed onto the prime focus adapter.
2x 30 second subs (not sure how I pulled those off) 6400 iso
1x 8 second sub
Finally managed to have a proper go at Orion Widefield last weekend.
45x240s (3hours) with Canon 6D and 50mm f2.8 at ISO800.
No darks/bias/flats. Stacked in DSS and processed in PS.
I am pretty happy with the result but now it got me thinking, how do I go from this to this: https://en.wikipedia.org/wiki/Orion_Molecular_Cloud_Complex#/media/File:Orion_Head_to_Toe.jpg
Is it a matter of longer acquisition, or is that CCD territory?