Wednesday, November 20, 2024

20241119 Testing old stuff

Using my Ranger with a reducer as the guidescope, piggybacking the Canon FD 300 f2.8 as the main scope.

M81, 180s x 20, -20 degree Celcius:


I've also taken some M45 and the double cluster.  

Wednesday, November 13, 2024

20241111 M31 (testing of new toy)

Canon FD 300mm f2.8 self modified to EF mount, with my new ASI 533mc.

My first target was M33 but it was a bit too dim as a test target., so I turned to M31.  Took around 120 shots of 60s exposure, medium gain, 0 degree Celcius cooled.

Stacked by ASI Air out of the box:


Adjusted using PS:

Polar aligned using the ASI air internal routine to acceptable level, one minute exposure was about maximum without guiding.  I will be doing guiding shortly.

Friday, November 08, 2024

A new toy

Weather so bad for a very long period of time, so it's the right time to buy a new toy.

It arrived this morning.

It requires 12V power supply to work, even without using the cooler.  

It could do planet imaging, but then it would need to connect to a 12V power supply.  The bigger chip should make centering the target much easier, I believe.  ROI should increase the fps.

My solar charged battery won't work at 12V, insufficient power apparently, using the 220V output will work, however.

It comes with a 2" adapter, also with M42.

It comes with a 1.25" adapter which should be more than enough.

A narrow band filter is included as a bonus.

Can't wait to test it but the weather will not cooperate.

P.S.: I did test it again at night and it works with my solar charged battery.


Tuesday, November 05, 2024

20241105 Sun

 Resumed imaging since suffering from sciatica.

The poor Scottish weather also a huge factor.  I found the sun was so low already and it's blocked by some trees.  So I just did an overexposure to cover up the shadows of the branches:


Need to wait until the Sun goes farther up.

I got a new sunshade for my notebook. it's actually a foldable leaves collector.  It works perfectly.


Way cheaper than a foldable sunshade for notebook but it works.