Daystar Quark – humidity issue

When I first received the Daystar Quark, the filters looked clear on the outside and hence I did not consider that there could be an issue with it. However, when I first did imaging through this with my Olympus E-PL5, it became clear that towards one edge of the image there was some vignetting and blurring. At first, I thought this was due to the Quark not being able to light up the entire Micro 4/3rds sensor, perhaps due to the way I was mounting it on – but I could not understand why this was only one edge (left side), unless there was such significant tilt in my focuser? Continue reading Daystar Quark – humidity issue

Astro-Physics CCDT67 + Skywatcher ED80

Recently I had read about the Astro-Physics CCDT67 telecompressor and how well it works with the 8″ Ritchey-Chretien telescope and also with the ED80 refractor. Hence I took the plunge to get this which was shipped very quickly from Germany. The thought of being able to grab more than an extra stop of light from both scopes, meant it was well suited for my setup. Continue reading Astro-Physics CCDT67 + Skywatcher ED80

Pierro Astro ADC (Atmospheric Dispersion Corrector)

I had read about the atmosphere having an adverse effect when viewing or imaging planets, particularly when the planets are fairly low down. I had read about the Atmospheric Dispersion Corrector (ADC) which has been designed to counteract this by adjusting the focus of the different colour wavelengths to come to the same point of focus on the camera sensor or the eye piece. Continue reading Pierro Astro ADC (Atmospheric Dispersion Corrector)

Winter Solstice

Yesterday¬†was the shortest day of the year, or winter solstice. This means that the days will start to get longer from now on. My wife had made up her mind that she was going to invite friends over for a meal and have a lovely steamboat. She also wanted to make glutinous rice balls or tang yuan, a dessert served at many different traditional chinese festivals and celebrations, including winter solstice. It has been a while since I’ve posted some food photos, so I thought this gave me a great opportunity to share photos of the food from the day. Continue reading Winter Solstice

Eye patch for astronomy

Now one of the things I found which made me unable to observe through a telescope for very long, is trying to keep one eye closed while looking through the other. Having owned a Denkmeier binoviewer in the past and only used it very occasionally for binoviewing and not quite enjoying it, I thought that perhaps I need to be thinking of using something to cover the left eye for me to reduce eye strain. That way I did not need to try and keep one eye closed at all times. Hence it dawned on me about getting an eye patch to do the job. Continue reading Eye patch for astronomy

Moment iPhone 6 plus case

I have owned many different iPhones over the many years, and I have hardly ever dropped them in the time that I’ve used them. But with the acquisition of the iPhone 6 plus last December, it became clear that it is large and easily dropped. Up until now I have been resistant to buying a case for it (after the Spigen case I bought had broken just weeks after I used it). But with Moment coming out with a case for the iPhone 6 plus which has a small grip to it, I decided to take the plunge, particularly when they had 20% discount on all their products for the festive season. Continue reading Moment iPhone 6 plus case

Andromeda galaxy

One of the other objects I did some imaging on was the Andromeda galaxy M31. This is a relatively bright (apparent magnitude 3.44) and large galaxy which requires wide-field to capture all of it. I might try to image this when the skies are clear with the Panasonic 100-300mm F4-5.6 micro 4/3rds lens, as it will have a larger aperture than my Skywatcher ED80 and be able to capture all of the galaxy. Continue reading Andromeda galaxy