Here we are busy again with recording the guitar parts of our new album.....Mr. guitarman!
Mr. bassman (me!)
Cello busy with recording......
Me and Liev.....
The Emperor said: Strike your refractor down with all of your hate and your transformation to the deep-sky side will be complete
A few weeks ago I saw this very annoying smudge on my primary mirror. I think it was a droplet of water that fell of the secondary mirror after a observing session.....Since it was almost entirely behind the secondary mirror it did not really influende telescope performane....but every time I collimated my telescope I saw this very irritating smudge.....
With the help of clean water with only 1 small droplet of dishwashing soap and some cotton pads I was able to remove it very slowly. Every time taking a new pad, dripping it in water, and slowly move it to the middle of the mirror, without pushing (only letting the pad clean by its own weight). After that I picked up the water with every time a clean pad....The smudge stain is almost 100%, only a very small one remains, but I consider that acceptable.
Last night was very cold, because of the wind. But because of that the sky was very clear. So we decided to go to the small airfield in Netersel with my 200mm newton telescope. I was the first there and after some time 2 fellow astronomers (morelinux with his 200mm LX90 SCT and g0t0 with his 250mm LX-200 beast). Here's a list of my observations:
In the center is NGC2683, called the Ufo Galaxy. It is a magn. 10.6 object I photographed last night. It is at a distance of 16.000k ly from us. This is a stack of 22x10min ISO800 autoguided (totalling 3hr40min). It was a very challenging object to photograph. At the end of the session my telescope was totally covered with ice.
This is a cropped version after extensive postprocessing.....
And with a lot of work I could also extract a very gaint background galaxy. I'm still investigating which one it is and what it's magnitude is.
Yesterday evening I tried to capture the M1 Crab Nebula, it is the remnant of a supernova explosion that happened in 1054. I tried to photograph this nebula already many times, without success. Last year I couln't find it. A few weeks ago I tried with the webcam but I also couldn't find it. Yesterday evening I tried again, but just before I was able to start exposures the locking screw of my Crayford focuser broke off. The risk of going on with my eos400d clashing on the ground was too big. I had to repair my focuser (tap new M4 tread+install new scrw) and try again. This night everything went fine. This is a combination of 14x10min (autoguided) exposures at ISO800. Totalling 2hr20min. I used 4 darks and 4 bias frames to correct the picture. Here's is also a crop from the widefield above:
Last night we and a couple of amateur astronomers were out on the flying field near Netersel again. After some hours of observing my battery failed and I had to stop. Morelinux suggested to try to photograph M42/M43 (the Orion nebula) my eos400d on his Meade LX90 SCT. Since this is a pure visual instrument I got many guiding problems (also because of the long focal point). I made 40 exposures of 15sec but only 12 were good enough for stacking. This is the result of a stack with Deepskystacker of 12x15sec at ISO800 with a Meade LX90 200m SCT @ F/10 (F=2000mm). 10 Dark frames and 10 bias frames were used to compensate the noise. Postprocessing was done with CS2 incl. the GradientXTerminator tool. We logged and saw many objects this night, and also got some visitors from the modelflying club (many oohs and ahhs). At the end of the night (3.00hrs) it was freezing about -3.5C and we decided to stop.
ure of us in the freezing cold.
This night was clear again. The 2/3 moon created some problems but I had to try the Orion nebula again after learning many things. The problem with the previous session was that the long exposure (LX) didn't really work (I thought it did....) This picture is much better: 25x30sec @ 25% gain with 18x30sec darks.