|
sticky
AP Product Catalog Database 14 messages
Hello Astro-Nuts, In recent weeks a few forum members have mentioned it would be nice to have a repository of old AP catalogs and offered to create a website database. This is a project we’ve had on o
Hello Astro-Nuts, In recent weeks a few forum members have mentioned it would be nice to have a repository of old AP catalogs and offered to create a website database. This is a project we’ve had on our radar but have not had time to dig into, so we appreciate this has been taken on by some of our Astro-Nuts. The website is here if you’d like to take a look: AP Product Catalog Database While you’re there, check out Tony Simon’s (aka Harley Davidson and Star Astronomer on YouTube) video of his catalog collection. If you have old catalogs and would like to add them, you can upload them to the Files section of the ap-ug group or the ap-gto group on Groups.io. They will be added to the database from there. I’ll pin this topic on the Groups Messages page so it’s easy to find. Many thanks to Holger Merlitz for creating the website and volunteering to steer this project, and all of you who have submitted your catalogs to the database. And a challenge: Can anyone find a catalog with the Hampden Ct address? Karen AP
By Karen Christen
·
|
|
sensor MTF issues RE: OSC vs color sequential mono with CFW RE: [ap-ug] A Virgo triplet to close out galaxy season 2 messages
Cmos can suffer from RBI.. some pixel designs are immune to it Image lag will look like RBI and CMOS charge transfer pixels will show it under the right conditions. The MTF plays a significant role in
|
Cmos can suffer from RBI.. some pixel designs are immune to it Image lag will look like RBI and CMOS charge transfer pixels will show it under the right conditions. The MTF plays a significant role in
|
By Richard Crisp
·
|
|
AP130 EDFGT + 35FOCER-FT 3.5" focuser? 3 messages
(I wasn't able to find this info on the AP website.) What is the length of the 35FOCER-FT focuser body? Or better yet.. what is the difference in length of the AP13GT 2.7" focuser and the 35FOCER-FT?
|
(I wasn't able to find this info on the AP website.) What is the length of the 35FOCER-FT focuser body? Or better yet.. what is the difference in length of the AP13GT 2.7" focuser and the 35FOCER-FT?
|
By Jeffc
·
|
|
OSC vs color sequential mono with CFW RE: [ap-ug] A Virgo triplet to close out galaxy season 6 messages
You will be better off to get to a given SNR using Mono with CFW in a color sequential filtering scheme vs OSC… Here’s why: The typical OSC sensor has a 2 x 2 cluster of pixels with one masked Red, on
|
You will be better off to get to a given SNR using Mono with CFW in a color sequential filtering scheme vs OSC… Here’s why: The typical OSC sensor has a 2 x 2 cluster of pixels with one masked Red, on
|
By Richard Crisp
·
|
|
A Virgo triplet to close out galaxy season 18 messages
The usual new equipment curse has somehow worked in reverse, with the Atlanta area having three clear weekends in a row during the new moon cycle. I took full advantage to shoot one more image in the
|
The usual new equipment curse has somehow worked in reverse, with the Atlanta area having three clear weekends in a row during the new moon cycle. I took full advantage to shoot one more image in the
|
By skester@...
·
|
|
one additional advantage of MIM Capacitor in metallization for CMOS E: cant use iphone in bed Re: OSC vs color sequential mono with CFW RE: [ap-ug] A Virgo triplet to close out galaxy season
For BSI if one does build a metal-insulator-metal type capacitor in the interconnect metallization over (now under for a BSI configuration) pixel, the capacitor is linear vs voltage variable. So if it
|
For BSI if one does build a metal-insulator-metal type capacitor in the interconnect metallization over (now under for a BSI configuration) pixel, the capacitor is linear vs voltage variable. So if it
|
By Richard Crisp
·
|
|
Grr: cant use iphone in bed Re: OSC vs color sequential mono with CFW RE: [ap-ug] A Virgo triplet to close out galaxy season
Let me answer this properly now that I am at a keyboard vs Iphone laying in bed waking up… The photodiode is no larger for BSI However all the frontside metallization is out of the way so the angular
|
Let me answer this properly now that I am at a keyboard vs Iphone laying in bed waking up… The photodiode is no larger for BSI However all the frontside metallization is out of the way so the angular
|
By Richard Crisp
·
|
|
Sent too soon Re: OSC vs color sequential mono with CFW RE: [ap-ug] A Virgo triplet to close out galaxy season
“Corrected” by my iPhone On May 18, 2021, at 3:51 AM, Richard Crisp <rdcrisp@...> wrote: The photodiode is no larger for BSI However all the frontside metallization is out of the way so the angular r
|
“Corrected” by my iPhone On May 18, 2021, at 3:51 AM, Richard Crisp <rdcrisp@...> wrote: The photodiode is no larger for BSI However all the frontside metallization is out of the way so the angular r
|
By Richard Crisp
·
|
|
Video Earth's rotational forces at work! 9 messages
The Equator passes through Kenya and Tanzania. This video demonstrates how precisely the earth's rotational forces work. Enjoy, Ross
|
The Equator passes through Kenya and Tanzania. This video demonstrates how precisely the earth's rotational forces work. Enjoy, Ross
|
By Ross Elkins
·
|
|
Info about 130GTX + 0.72x QuadTCC + ASI6200 50 messages
Hi, I use an ASI6200 camera for my deep sky photography. I have the opportunity to buy a 130GTX with the QuadTCC reducer. I am looking for information and examples of images made with this material. I
|
Hi, I use an ASI6200 camera for my deep sky photography. I have the opportunity to buy a 130GTX with the QuadTCC reducer. I am looking for information and examples of images made with this material. I
|
By sebkersten
·
|
|
Jupiter 05/14 GRS 2 messages
I had to image though clouds today. If it wasn't for the GRS, I would have gone back to bed. Transparency was very poor but seeing was ok. The area around the GRS is very active. Note the "flake" on t
|
I had to image though clouds today. If it wasn't for the GRS, I would have gone back to bed. Transparency was very poor but seeing was ok. The area around the GRS is very active. Note the "flake" on t
|
By Christopher Go
·
|
|
Fun with the Veil Nebula 2 messages
We had some clear skies in Central Florida last week that were accompanied by exceptionally low humidity. Spent two full nights imaging at a nearby ‘dark sky site’. Attached is an image of the Western
|
We had some clear skies in Central Florida last week that were accompanied by exceptionally low humidity. Spent two full nights imaging at a nearby ‘dark sky site’. Attached is an image of the Western
|
By quinnfamily@...
·
|
|
Celestial Whale 3 messages
Had 3 good clear and steady nights which allowed me to capture the Whale galaxy (although it looks more like a Sardine to me). Used the AP 10" F14.6 Mak-Cass with our simple CCDT67 telecompressor to a
|
Had 3 good clear and steady nights which allowed me to capture the Whale galaxy (although it looks more like a Sardine to me). Used the AP 10" F14.6 Mak-Cass with our simple CCDT67 telecompressor to a
|
By Roland Christen
·
|
|
130GTX Focuser Question/Issue 32 messages
I'm having a little trouble with the 3.5" FT focuser on this scope. I purchased a pegasus focus cube and installed it and it couldnt really move the focuser without a grinding noise and slipping. I sw
|
I'm having a little trouble with the 3.5" FT focuser on this scope. I purchased a pegasus focus cube and installed it and it couldnt really move the focuser without a grinding noise and slipping. I sw
|
By Chris White
·
|
|
Jupiter 05/12 3 messages
April and May is suppose to be the best time for imaging planets here in Cebu. This is our dry season. But this year we have a very wet dry season. I have finally been able to get some decent images o
|
April and May is suppose to be the best time for imaging planets here in Cebu. This is our dry season. But this year we have a very wet dry season. I have finally been able to get some decent images o
|
By Christopher Go
·
|
|
Old image. 6 messages
Pete, You are a wizard with the telescope and in your ability to use it to capture difficult and dynamic targets! It’s very interesting what a small world this is. Your photos of the launch of STS-131
|
Pete, You are a wizard with the telescope and in your ability to use it to capture difficult and dynamic targets! It’s very interesting what a small world this is. Your photos of the launch of STS-131
|
By Greg Vaughn
·
|
|
Big Bend Trip Update 26 messages
Greetings Folks, I had a fantastic trip to West Texas and Big Bend National Park. I spent 7 nights in the Big Bend Region including 6 nights at two 4WD accessible only primitive campsites. The skies w
|
Greetings Folks, I had a fantastic trip to West Texas and Big Bend National Park. I spent 7 nights in the Big Bend Region including 6 nights at two 4WD accessible only primitive campsites. The skies w
|
By quinnfamily@...
·
|
|
Old image… 8 messages
Evening, My in-laws are in town for the week. Had a very nice Mother’s Day and while looking for an old video I stumbled upon some predawn Shuttle launch images. My in-laws were with my family and I o
|
Evening, My in-laws are in town for the week. Had a very nice Mother’s Day and while looking for an old video I stumbled upon some predawn Shuttle launch images. My in-laws were with my family and I o
|
By Pete Lardizabal
·
|
|
M63, a sunflower for Mothers Day 7 messages
We had a beautifully clear, cool and calm night here in north GA on Friday and I was able to capture this image of M63. It was shot with a 12" F4 newtonian and ASI1600MM-Pro riding on my 1100GTO. Scot
|
We had a beautifully clear, cool and calm night here in north GA on Friday and I was able to capture this image of M63. It was shot with a 12" F4 newtonian and ASI1600MM-Pro riding on my 1100GTO. Scot
|
By skester@...
·
|
|
APOD 2 messages
I am strictly visual but I do like to look at decent astrophotos. My day starts with a visit to APOD, have a question regarding today's APOD, 10 May, what are those blue circles around bright stars, a
|
I am strictly visual but I do like to look at decent astrophotos. My day starts with a visit to APOD, have a question regarding today's APOD, 10 May, what are those blue circles around bright stars, a
|
By Vahe
·
|
