astrosathya

Hi John, Great explanation there. You mentioned the "elongated stars on upper right". Now that's a problem I've been facing with my astrograph. I've tried using the Gary Seronik method that you've described though a modernised manner. I still need to check mine on real stars though.

Hi Louise, I have purchased mine directly from the Indian Distributor of GSO. It looks exactly like the one in the image with the same markings etc, as well as the removable eyepiece adapter (conical shape) as well as the M48 to M42 reducer ring.

Its the latter one, shown on Agena Astro website.

I have a GSO Coma Corrector which I purchased for my GSO 6" f4. When I try to use spacers equalling 75mm as advertised online (including 17mm CCD to flange), I get elongated stars. Last night I tried 55mm and it works brilliant. What could be happening here?

Try using the new STC Astro Duo Narrowband filter with this camera. It seems to give some really good results with OSC's. There's this chap named Trevor in Canada who keeps talking about it.

Precisely. I think all of us who reside in big Cities, be they London, NY, Tokyo, Bangalore etc., are best off with NB filters.

I've not had favourable weather to test all of them. I've used only the 7nm Ha filter and its brilliant. Light Pollution is a thing of the past when I use this filter. I hope to use all 7 this season.

Hello Everyone, I have 7x 36mm Baader filters in my QHY Filter wheel. I use a simple Orion 80ED with a manual focuser. I have two questions basically. a) How important is refocusing between the LRGB Ha OIII and SII filters? b) If important, then how do I manually calculate the offset distance between them assuming the filters aren't parfocal?

Hi Ian, Welcome back to the hobby. The C80 is a refractor of 80mm aperture. Infact its sisters are the Orion 80ED and Sky-Watcher ED80. These are good for deep sky imaging, when coupled with an 0.8x reducer/flattener, but when it comes to imaging planets like Jupiter and Saturn you need resolution, like that of a Celestron 8" SCT. If planetary imaging is your cup of tea, then go for an SCT. This C80 wont be much use, even with a Barlow because resolution is directly proportional to aperture.

Thanks for reminding me Dr Ju, I just contacted him. I noticed that I am able to use 5 filters, but not 7, even though I've changed settings in APT to define the 7 filters.

Hi Everyone, I have been trying to connect my QHY FW2 to APT and even though it establishes connection, I am unable to rotate the wheel with the software. No clue whats happening. The wheel is powered, connected to CCD and APT. But nothing after that. Someone please help

On the website of Teleskope Service Germany, they have a Long Perng 0.6x reducer flattener that suits the ED80. A friend of mine owns one of them and says that it works.

not yet, skies are very cloudy

Thanks for the reply Anthony. Unfortunately, I live at 13deg latitude Bortle 7-8 sky (Bangalore City), which means that most of the dimmer stars around Polaris are all but invisible to Sharpcap as I tested it once when the feature was newly revealed. I therefore rely on my Polar Scope as well as DARV to get PA accurate.

I have a 2012 model HEQ5-PRO and it has the older reticule in the polar scope. Could anyone direct me if I can urchase a new polar scope reticule or a new polar scope with the latest reticule?