Astronomy Log

What great weather we have been having lately, could it be anything to do with there being no planes flying at the moment due to the icelandic volcano erruptions? After spending the day listening to talks, looking at telescopes and viewing trade stands at Kelling Heath I decided to come home and do some imaging.

The moon has been looking amazing at the moment in the blue twilight sky, unfortunately for me at the moment my west viewpoint is obstructed by my own house, so I snuck around the side of the house and managed to get this image below of the moon and venus on the bottom right.

f/4.5 1/10sec -2 exposure on a Canon 450D

The same moon taken using my Canon 450D straight into an 80mm StarSky Refractor - 1/125 second exposure with a ISO400 setting.

Click on both images to enlarge them.

I managed to get out before the snow set in and the clouds appeared today (Sunday 21st Feb). I went out at about 4pm when it was still light, but the moon appeared directly above me.

I took this image with my cheap refractor but this time I also used my Televue 2x Barlow as well as my Canon 450D camera on ISO800 for about 1/50th exposure. I forgot to add that I also used my 1.25″ Baader Fringe Killer filter.

Click on it to enlarge it.

I sent my lunar eclipse images around the internet and managed to get the photo on the Sky News website within about 12 hours. The local CAA have also responded, and so have the SPA. The SPA have requested a high resolution version, hopefully for the quarterly magazine, but we’ll see.

Managed to get out tonight for a while around 7.30pm, I did not think the clouds would clear. Usually whenever there is something worth looking at it’s always cloudy! But eventually the clouds went and the moon was in full view, even though it was -1 degrees in the shed.

I took these images by attaching my Canon 450d to my cheap £100 guiding refractor telescope, I still think the photographs it produces are great for a £100 telescope. Images were taken mostly using an exposure time of 1/800th and an ISO400

I stayed out as long as possible to try and get the full story of the eclipse, all the way through from start to finish, but I did move my camera between the refractor and the lx200 so some later shots did get rotated as I did not put the camera back in the exactly same position.

The partial eclipse was not a great site to behold, but still something worth looking at.

I popped out last night with just my static tripod and camera to try and get some shots of the conjunction of the moon and pleiades.  I spent about 30 minutes outside in the wind, which was making the camera move.  So I ended up taking about 50 shots in total.

Unfortunately as the moon was so bright getting the faintness of the pleiades with the brightness of the moon was very difficult. I took all the shots at ISO800 on my Canon 300mm lens with varying exposure times.

Below is the best I got, which is pretty bad, I think I would have been better taking the photos of the pleiades  and the moon separately and then just putting the scene together in a photo editor program.

The only good thing to come out of the 30 minutes was this shot of just the moon. It’s quite amazing what a 300mm lens can do, and it shows you don’t need a telescope in order to take nice images of the moon.

I went to bed at 9pm on the 20th February and managed to get up at 2.30am in order to get some images of the lunar eclipse.  I knew it was going to be cloudy tonight, but I thought the bright moon would shine through any cloud, how wrong I was.

Luckily after setting up and letting the LX200 do it’s setup routine, I managed to somehow find focus on the moon and get a few images.  It was difficult to get focus on the moon when it was covered by cloud, but after the first 10 minutes or so the cloud came over and the moon disappeared for the rest of the night, I came in at about 4.30am.

I even had to pull my whole telescope by the leg and re-align it manually as the moon disappeared behind the ridge of my house roof, whilst I waited for a better view.

I think if I could do it all again I would have set up my telescope earlier and found perfect focus then left the telescope alone until the lunar eclipse began, rather than try and find focus when the moon was covered by cloud.

The image was taken at prime focus f/0 through the telescope using my Canon 400D with an exposure time of 5 seconds at ISO800.

After purchasing my Meade DSI Pro from eBay (see this post about it), I was itching to give it a go. As the moon was out, it seemed the perfect object to use in order to ‘cut my teeth’ on the DSI Pro, especially as I do not have any CCD filters to use yet in order to get colour images.

I was quite amazed at the quality of the images of the moon, and somewhat better than a Philips SPC900 web cam. I did not have the LX200 telescope driven by the Autosuite program, I just used the Autosuite imaging program on it’s own, with the moon preset selected.

Not too bad for my first use, I have since read the PDF manuals, but I think it is really practice makes perfect with the DSI Pro. I think I may also need a f3.3 focal reducer as the f6 focal reducer I have does not quite cut it. I also need the Meade CCD filters, although I think I will try it with normal 1.25″ colour filters first and see what I get.

Whilst out in the garden at lunchtime I was amazed to see the moon at around 2pm in the western sky today, not something I get to see often, so I had to go and get my tripod, remote and 300mm lens out and here is what I took.

f/11, 1/500sec, 300mm, ISO200

Whilst out the with telescope I also got my first chance to try out my Canon 75-300mm USM lens attached to my Canon 400D on the moon.

To try and show what is capable with the lens, I have included shots of the moon at various settings, also I used a tripod and remote control for these images.

Camera Settings: Exposure time was 1/200 sec at f/5.6 and ISO200

The moon at 75mm Zoom:

The moon at 150mm Zoom:

The moon at 300mm Zoom:

The same shot again at 300mm but at 100% magnification:

I think this final shot is really quite good with just a 300mm camera lens, which cost me around £125, nearly as good as using a telescope for the shot.

This is an image of the moon I took on 31st August 2007. I took this through my telescope on my Canon 400D by the prime focus method, which is adding the camera directly to the telescope and I did not use any extra eyepieces, just the natural magnification of the telescope.