Doversole

How is do you connect your mount to the ASIAIR? I use a USB cable. Once again, I do not use the Synscan app at all.

Sorry I will come back to you, I need to switch on the scope and mount to check with my configuration. I suppose you have ticked the box meridian flip in your autorun or plan modes?

@xion824, I do not use the Synscan app at all as the ASIAIR is controlling the mount. I don't have an issue with the Meridian flip. The ASIAIR will indicate the time for the Meridian flip to occur depending on the object, then stop the plan and execute. Could you please share your ASIAIR configuration?

A had a few issues with guiding following a meridian flip using an ASIAIR and a Redcat51. Anyone experienced issues? Would you mind sharing your ASIAIR configuration. I do recallibrate following Meridian flip. - I use guiding rate 0.5 (should I try 0.75?) - callibration step: 9000 (I use a 120mm guidescope) - I will get callibration within 5 steps. I may need to reduce this a bit to add a few more steps. The sweet sport may be around 5000. - Max duration 2000ms I also find the mount struggle to get the guiding back after dithering. RMS is usally around 1.5". Views welcome!!

My last and final image, a 2 panel mosaic, using the Samyang 135 and a APS-C sensor, the ASI071MC: From America to the Crescent Nebula. Done whilst travelling in France during some holiday.

Here is another one! The Crescent Nebula NGC6888 in Cygnus in HaO3RGB using my RC8 scope with an ASI1600MM-Pro mono camera. Imaged over 3 nights in the UK with average seeing conditions (quite a few high clouds). I will add some more data if ever I got the opportunity.

A classic in the summer triangle! M27, the Dumbbell Nebula in HaO3RGB. RC8 scope, ASI1600MM-Pro mono camera. Narrowband Ha and O3 was used for the starless image, RGB for the stars. Processed in PixInsight, using a mask strech to avoid blowing the centre of the nebula. I thought I would never get some clear skies here in England!

I am using the ASI174MM Mini with a Celestron OAG and an RC8 scope (1600mm focal length). I never had any issue finding a guide star. Large pixels and big sensor.

Hello Astronomers! This invitation is for Friday 16th JUNE at 7:30 when we are very pleased to present in the Oak Room upstairs at the Haven Centre, Crawley Down (RH10 4LJ) and by Zoom Video conferencing:. THE TALK ‘Observational Cosmology – an Update’ Professor David Bacon will introduce from scratch where we’ve got to in our understanding of the Universe. The behaviour of galaxies indicates that there are strange entities, dark matter and dark energy, which dominate the way that the cosmos is developing. Detailed measurements are also showing that our theories are creaking and may need changing, and he will describe some of the attempts to do so. He will discuss the prospects for better understanding with the exciting range of forthcoming world-class telescopes. THE SPEAKER This is a return visit from one of our favourite speakers: Professor David Bacon is Associate Director of the Institute of Cosmology and Gravitation at Portsmouth University. His research interests include cosmology at radio wavelengths, gravitational lensing, theories of gravity. Our MEETING PLAN is: We will start the session around 7.15 for a 7:30 start. Video call link: https://us02web.zoom.us/j/84453092128?pwd=QjZ0UDBFZTVqTjBOV1dVRTRScm9kZz09 Meeting ID: 844 5309 2128 Meeting Passcode: 412277 Telescope Surgery (‘Solar Observing’) OPEN UP and get connected to Zoom Introduction and Welcome - all new and recently joined members Star Lab and Other Society News Prof David Bacon – ‘Observational Cosmology – an Update’ BREAK (member’s feedback forms) Sky Diary & Member’s Photos CLOSE Join our Facebook Group Crawley Astronomical Society on the web : https://crawleyas.co.uk/

Here is the Pinwheel galaxy, on the left taken on the 24th May, on the right taken the 2nd April, both from my garden in South-East England. RC8 scope from StellaLyra, ASI071MC cool camera, on a EQ6R-Pro mount. About 4 hours integration for both images. The image on the 2nd April was under a very bright Full moon (but one of the only clear night in April!!)

I suppose it means the mount needs to be balanced in DEC which is not a huge constraint.

The HEM15 is now on sale in the UK. https://www.firstlightoptics.com/harmonic-drive-mounts/ioptron-hem15-mount-without-ipolar.html at £1159 without the iPolar, it makes it an attractive protable solution, far cheaper than the AM3. Is there something I am missing?

A very nice couple of galaxies in the constellation Canes Venatici: The Whale and the Hockey Stick. Imaged with an Stellalyra RC8 scope on a Skywatcher EQ6-R Pro, ASI071MC camera. 92x180s frames.

M101, the Pinwheel Galaxy caputered on the 2nd / 3rd April with almost a full Moon! First clear night in West Sussex for about 7 or 8 weeks.... This was caputured using a RC8 scope on a Skywatcher EQ6R-Pro, with an ASI71MC cool colour camera. As the Moon was very bright, I opted for short exposures. So that's eventually 110x60s! Processed with PixInsight, using Blur and NoiseXTerminator from RC Astro. Thanks for looking.

Enjoying the Elephant's trunk Nebula. Guiding more than OK.