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
AR on Friday, Oct 9
-
- Way More Fun to Share It!!
- Posts: 2410
- Joined: Thu May 24, 2012 12:12 am
- Location: Woodbridge, Ontario, Canada
- Been thanked: 1735 times
- Contact:
- eroel
- Way More Fun to Share It!!
- Posts: 9408
- Joined: Mon Dec 19, 2011 10:45 pm
- Location: México D.F.
- Been thanked: 4904 times
-
- Almost There...
- Posts: 783
- Joined: Tue Feb 03, 2015 3:44 pm
- Location: Vista, CA
- Has thanked: 141 times
- Been thanked: 240 times
- Contact:
Re: AR on Friday, Oct 9
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
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
- yltansg
- Way More Fun to Share It!!
- Posts: 2798
- Joined: Sat Jun 14, 2014 9:33 am
- Location: Singapore (1.3N, 103.7E)
- Has thanked: 1446 times
- Been thanked: 1423 times
Re: AR on Friday, Oct 9
Hi Lou,
Wow, that is a awesome image. Looking forward to see images from your new equipment.
Alfred
Wow, that is a awesome image. Looking forward to see images from your new equipment.
Alfred
- marktownley
- Librarian
- Posts: 42274
- Joined: Tue Oct 18, 2011 5:27 pm
- Location: Brierley Hills, UK
- Has thanked: 20442 times
- Been thanked: 10248 times
- Contact:
Re: AR on Friday, Oct 9
That's a really nice image Lou and interesting setup!
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!
- Montana
- Librarian
- Posts: 34563
- Joined: Mon Oct 17, 2011 5:25 pm
- Location: Cheshire, UK
- Has thanked: 17672 times
- Been thanked: 8794 times
Re: AR on Friday, Oct 9
That's an excellent choice Lou, I am very envious superb image too
Alexandra
Alexandra