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IC1396 The Elephant Trunk Nebula & The Garnet Star


Greg M

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  • Greg M changed the title to IC1396 The Elephant Trunk Nebula & The Garnet Star
59 minutes ago, Greg M said:

I captured this over two evenings. I hoped for even more data but both evenings the winds picked up and scrapped the imaging.

21h 39m 00s +57° 29′ 24.0″
IC1396 is a concentration of ionized gas in the constellation Cepheus. The Elephant Trunk itself is IC1396A and is the vertical tenuous stream of gas coming from the bottom of the frame up towards the center.
The bright red star in the upper right of the frame is Mu Cephei, also known as Hershel's Garnet Star. It is a red giant and thought to be one of the largest known stars with a radius of 1,000 times our sun. If it replaced our sun it would reach between the orbit of Jupiter and Saturn.

StellarVue SV70T APO, ZWO 1600mm camera, Baader Filters, CGX Mount, Captured using NINA, Processed with Astro Pixel Processor.

15x 60second - Lum
15x 120seconds ea. - RGB
30x 300  sec. Ha
24x 300 sec. OIII
20x 300 sec. SII

Total Integration Time = 7hr 55 min.

Taken from Hwy 156  Lee Canyon Rd @ 6230' (1899m) - SQL Reading 20.92 - 57°f  (14°c) 

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Very nice detail and star colour. Maybe the background needs adjusting a little to remove the magenta, but overall an excellent image. Did you use the Lum data on the stars, or for the nebula? If it is for the nebula, using the Ha as a lum will probably give better results.

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2 hours ago, AstronomyUkraine said:

Very nice detail and star colour. Maybe the background needs adjusting a little to remove the magenta, but overall an excellent image. Did you use the Lum data on the stars, or for the nebula? If it is for the nebula, using the Ha as a lum will probably give better results.

Yeah, I may or may not get around to re-processing it. I would like to get more data and re-stack before I bother any further. I'm not a real stickler when it comes to processing. I don't use P.I., I use A.P.P. with the default settings and just let it go. I am not one of those guys that will spend hours on processing.  

But I'll keep your advice in mind if I'm able to grab more data.

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On 6/14/2021 at 3:39 AM, Greg M said:

Yeah, I may or may not get around to re-processing it. I would like to get more data and re-stack before I bother any further. I'm not a real stickler when it comes to processing. I don't use P.I., I use A.P.P. with the default settings and just let it go. I am not one of those guys that will spend hours on processing.  

But I'll keep your advice in mind if I'm able to grab more data.

 

Same here, because i am just now starting to do DSO with good scopes, i got my 90mm Triplet this year 2 months ago after i ordered it as an alternative last year, and last year i bought 6" F/4 Newt, but with all that i am still not good at processing and i don't think i have to spend hours while my data isn't good enough yet, and i also feel like my life isn't only dedicated to astro so i gave hours for imaging and another hours for processing and i keep that forever, so i hope one day i can find a balance and make good data and processing without wasting time on both.

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