Dear friends,
Finally the sky was clear last night until this morning. Not only the seeing
was good, the transparency improved a lot too!!! (compare with the one taken
on 4 June). This time I used the Baader UV/IR Blocker instead of
TrueTechnology one. The transmission of the visible wavelength is 98%.
http://www.ort.cuhk.edu.hk/ericng/mars_200306172044_eric.jpg
As I was quite rush to back to office this morning. After selected and
stacked the avi, I was lucky to see Damian is online in my ICQ list. He is
so kind to process the composite raw I sent to him. Such joint effort is
really great, both of us appreciate it very much.
As Wei Leong pointed out toucam + IR blocker, the results is no obvious
difference with the restricted bandpass 400-500nm and 600-700nm by using
magenta filter. Therefore, I preliminary stacked the one without magenta
filter in this morning. I shall process another one with magenta filter with
RR(G)B or R(G)B and see the results.
It seems there are some yellowish (dust?) clouds above the Hellas at the AM
limb.
Please kindly comment on it.
Clear Skies,
Eric Ng
Finally the sky was clear last night until this morning. Not only the seeing
was good, the transparency improved a lot too!!! (compare with the one taken
on 4 June). This time I used the Baader UV/IR Blocker instead of
TrueTechnology one. The transmission of the visible wavelength is 98%.
http://www.ort.cuhk.edu.hk/ericng/mars_200306172044_eric.jpg
As I was quite rush to back to office this morning. After selected and
stacked the avi, I was lucky to see Damian is online in my ICQ list. He is
so kind to process the composite raw I sent to him. Such joint effort is
really great, both of us appreciate it very much.
As Wei Leong pointed out toucam + IR blocker, the results is no obvious
difference with the restricted bandpass 400-500nm and 600-700nm by using
magenta filter. Therefore, I preliminary stacked the one without magenta
filter in this morning. I shall process another one with magenta filter with
RR(G)B or R(G)B and see the results.
It seems there are some yellowish (dust?) clouds above the Hellas at the AM
limb.
Please kindly comment on it.
Clear Skies,
Eric Ng
Attached Image:
