Saturday, December 8, 2018

CFF 250mm RC - Frist Light

Finally one cold and clear night for me to test the new RC !!
Pictures only...




















Friday, September 14, 2018

2018 CalStar - Visual Observation of the Markarian 205 Quasar

This is the first time that I attend a star party without doing any imaging...
I picked and studied a couple of challenging targets for my 10" Dob and the particular one is the Markarian 205 Quasar. This Quasar is over 1B light years away from us.




The 14-mag target is very faint for my 10" scope. I observed this for more than an hour and can only see the it about 10% of the time. Hopefully I will get a larger scope in the future to re-visit this target.

Here is my drawing of this target:


I also observe the two faint galaxies near M13


My son, Adrain, also did a drawing on M13... ;-)


Some more images of this party ...
















Monday, September 3, 2018

Final Process - NGC7000 3x3 Mosaic (Ha Only)

This is the largest mosaic I ever done - the size of the final image is 8489 × 6123.

NGC7000 is a large target and took me 15 nights (48hr) to collect enough data from my Fremont backyard. Required 3x3 mosaic to cover this...
Detail and large image at https://www.astrobin.com/364311


Saturday, September 1, 2018

Saturday, February 24, 2018

Protostar Jet @ NGC-2244 / Rosette Nebula

Besides taking pretty pictures, I am always excited about the science behind that.

After reading the "Jet Steam" in the Sky-and-Telescope magazine, I want to see if my previous image catch that. I went through the NGC-2244 Ha image (30min, single exposure) I took last year and can see the protostar jet there !!




From the magazine






48-Hour NGC-1499 - Ha Only

Have been a long time since the last post.
Here is the final image of this large target. Pretty happy with the result !!

https://www.astrobin.com/325875