Monday, June 11, 2018

20180611 Sun (closing this season)


I waited until very late 0741 UT or 1541 local time, but the sunshine didn't come fully inside my home.  So, most of the aperture was blocked, very poor resolution with uneven illumination.

Closing this season, therefore.

Sunday, June 10, 2018

20180610 Jupiter

Processed by AutoStakkert 3 with Drizzle 1.5x, Ranger with 5x Powermate, ASI 120mc


1522 (UT).

I pulled out the camera and looked through a 4mm eyepiece, terrible high frequency seeing. 

70mm aperture is not bad in this case.

Thursday, June 07, 2018

20180605 Jupiter

It has been a long time since I took image of Jupiter.

First two taken at 1550 (UT) with a ASI 120mm, first one processed by AutoStakkert 2 and the second one with AutoStakkert 3 with Drizzle 1.5x... I also carefully processed it further to enhance the contrast.



Next one taken at 1553 (UT) with a ASI 120mm, processed by AutoStakkert 3 with Drizzle 1.5x... I also carefully processed it further to enhance the contrast.


Last two taken at 1555 (UT) with a ASI 120mm, first one processed by AutoStakkert 2 and the second one with AutoStakkert 3 with Drizzle 1.5x... I also carefully processed it further to enhance the contrast.




I believe AutoStakkert 3 is better and I will use it afterward.

Thursday, May 24, 2018

20180524 Moon

Moon again, with my Ranger and 5x... today on top of my new camping table.


Of course, not very stable but imaging is possible.

Using two of my favorite craters as target.

1259 (UT):-


1301 (UT):-


Quite nice, fit my small window platform very well!

I will probably bring this small table out for observation if I were to use my Nexstar mount.

Wednesday, May 23, 2018

20180523 Moon

It has been sunny and extremely hot for a couple of days, I even pulled out my Canon 18x50 IS to go for a short casual observation in a nearby light polluted playground but then the sky was filled with thin cloud by then.

Tonight it seems quite clear, and I pulled out my Canon FD 300mm f2.8 to do some high power shots, but all the processed images show internal reflection, so this lens leaves me no hope for high resolution imaging.

I've tried to stack two 2x, and different combinations with a Tele Vue 5x:


Then, I pulled out my 20 years old Ranger and took these two shows with my Tele Vue 5x Powermate:

1420 (UT)



1426 (UT)


Sunday, May 20, 2018

20180520 Sun

Summer came, and the direction of the sun inside my room is no good.

Seeing 3/10, transparency 7/10 - nearly the best we can get here in Hong Kong.

0642 (UT), exposure optimized for surface detail, prominence was pushed by post-processing.


0644 (UT), exposure pushed up to show the prominence.


Relatively lack of surface detail, some nice prominence around the edge.


By poor viewing angle, there is only around half of the aperture was illuminated.

Tuesday, May 01, 2018

20180501 Sun

We had a holiday today, it looks hot and shinny outside.  But when you turn your scope to the sun, you saw the moving thin cloud.

Captured a short clip on the relatively featureless solar disc, both AS!2 and Registax failed to come up with a stacked image... 

Just a record.

--


On placing the stuff back, I found these cheapy 18650 works very well for powering my setup.  I did 2-3 times per month on solar imaging, and I only charged them once, not because it ran out of juice, but just I want avoid them to flat out completely.

I've sold my C5, that GOTO Mark-X, and the long time partner Gitzo G106.  My equipments dropped to a minimum.