AR on Friday, Oct 9

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gabrieli
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AR on Friday, Oct 9

Post by gabrieli »

Although the seeing was abysmal, I used a Celestron 180 Mak in a new configuration for this session.:

A full aperture ERF + 35 nm Ha on the nose of a new 2 inch 1.5X telecentric + ASI290 camera.
The new telecentric avoids the use of reducers that, for me, always caused more problems than they solved. It gives a nice clean image.

Unlike other ZWO cameras I’ve dealt with, the ASI290 camera does not exhibit any random noise pattern at any gamma setting although the gamma range is limited .

The 1.5X telecentric gives a useable focal length of 4050 mm at about f/23 at full aperture to make the Quark Combo happier. I currently have an ERF cell on order from Teleskop Service ( shipping imminent) to hold a 135 mm ERF onto this scope to boost the f/ratio to about 30 with the same focal length and 135 mm aperture.

This f/30 ratio is to accomodate a new Ha filter.
After some research, I’ve decided to go with a 0.5Å filter from Solar Spectrum. This bandwidth is a good balance to image both details in proms and chromosphere and the filter has active heating and cooling.

The delivery schedule from placing the order is 12 - 24 weeks, meaning it should be in my hands by next spring when there is, hopefully, more activity.

This past year was a year when equipment upgrades overshadowed getting good images.
I’m hoping for better next year.

Lou
717d_filtered.jpg
717d_filtered.jpg (160.95 KiB) Viewed 232 times


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eroel
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Re: AR on Friday, Oct 9

Post by eroel »

Lou:
Very nice active zone.
Best wishes,
Eric.


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Re: AR on Friday, Oct 9

Post by Starry Jack »

Nice capture!


Explore Scientific 152mm f6.5 achromat
Aeries D-ERF
Quark Chromosphere f27 native, (f14 when focal reduced)
Mallincam .5x focal reducer (large format)
12nm Filter
ZWO174 (IMX249 chip 5um)
Huge Sense of Adventure Viewing Creation
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yltansg
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Re: AR on Friday, Oct 9

Post by yltansg »

Hi Lou,

Wow, that is a awesome image. Looking forward to see images from your new equipment.

Alfred


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marktownley
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Re: AR on Friday, Oct 9

Post by marktownley »

That's a really nice image Lou and interesting setup!


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http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
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Re: AR on Friday, Oct 9

Post by Montana »

That's an excellent choice Lou, I am very envious :) superb image too :bow :hamster:

Alexandra


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