2019/07/12 Doubles on Ursa Major

STF 1744 / 2.2+3.9 / 15” - easy 50x

B 1082 / 5.0+7.9 / 1”~0.6” - fail, no sign at all

STF 1695 / 6.0+7.8 / 3.8” - split 208x

STF 1770 / 6.9+8.2 / 1.8” - split 250x

B 802 / 7.6+11.8 / 3.7” - fail, too faint

2019/07/12 Doubles on Canes Venatici

Some backyard observing using my 10" Dob.
Short session...

STF1692   / 2.89+5.52     / 19.3"   - easy with 50x
STF1723   / 8.56+10.08   / 6.3"     - ok with 208x
15 CVn     / 6.28+9.22     / 1.3"     - fail

2019/07/04 Nyx Tracker @ Lake San Antonio

1st trip of the summer - this tracker is so light weight and so easy to use.
The laser pointer alignment is such a great idea, only took 1min to setup.

• Use 2 lens - 24mm F2.8 and 8mm F3.5 (from JJJ)
• 4.5min expo
• Single JPG

Backyard Setup ...

I still want an observatory !!

Getting CFF-250 RC Ready !!

Finally get everything ready !!

(1) auto focus

(2) OAG guiding with STT-8300

(3) Not too bad...

(4) Stars are round !! Collimation is done too !! Yes !!

Now I need to learn how to take flat ...

03/29/2019 CFF RC Collimation...

Finally done !!! Check out these before-and-after images...

Yes !! The Auto-Focus Finally Works !!

Oh yeah !!
Need larger step size ...