香港天文論壇

LT 寫: ↑

週五 27 5月, 2022 12:41

Taken with Vixen VSD100F3.8 astrograph + reducer + 5Da in Australia in 2015 @300mm F3
31x120s @iso1000, autoguided with Vixen SX2 mount

LMC_F3.jpg

Too beautiful !!

Unbeatable Captures !!

PTS 寫: ↑

週三 06 10月, 2021 00:52

2021 October 05 - M57 Ring Nebula at Hokoon

Telescope: 50-cm RC reflector, f/8
Camera: ASI1600MM Pro, cooled to -14.5C
Gain: 200
Exposure: 120 s

South is up, east to the left

Seems rather out of focus, is it the problem from the RC reflect ?

So... beautiful capture, the Andromeda Galaxy !!
Even taken with a 200 photo Lens, it shows a very nice scale.

A good capture of Jupiter

Marantz 寫: ↑

週四 15 7月, 2021 12:45

Wonderful shots with a self-made reflector !!

Can you show us a photo of your self-made reflector?

Ken1111 寫: ↑

週五 23 7月, 2021 12:50

Wonderful !!

First operational test of my DIY mount is not done yet as this 3.6v Lithium battery needs to be replaced, and I am waiting for its arrival now. http://www.hkastroforum.net/download/file.php?id=125261 Why are you waiting this battery from oversea ? 3.6v Lithium-battery is common in some electrical s...

Finally get my f6.3 reducer for the sct for the lunar eclipse. Had some clouds but was able to get some good data. [Good Job] Schmidt + reducer, this combination is always the best choice for capturing Lunar Eclipse. You proved this once more! No exception, your skills are also the key factor to go...

How are you ready to capture the Lunar Eclipse this evening ?
What gears, which location ?

[樂奔]

After some refinements on it, it can be run for 1st operational test. http://www.hkastroforum.net/download/file.php?id=124083 [Good Job] You look so productive, your project is going quickly and seems already entered into final step. Congratulations !! You put the worm-gear on the down side (declin...