No.8 )

So the wind last night had passed and left .
I had found a chance to take a moon photo last night .
It's the Mare Imbrium , a large oceanic area on the moon .
You can check several apparent areas as well from the moon map I provided , I had bold it in Red blocks .

TheFOV of this picture ( DSI plus 2X barlow ) this time is about 12" ,according to the indication on the moon map software . Starting fromnow, I can use this software to physically measure the FOV of anytelescope imaging system . And I can even measure the distance betweentwo points on the moon directly . In the old time , I can onlycalculate ( i.e. estimate ) the FOV , but now I can measure it directlyand PHYSICALLY with the help of the actual moon crators , this is veryimportant to me .

I am not using a web cam this time indeed .
282 flames is collected in about 5 minutes from DSI .
Comparingto webcam , Just several second can be collected for such number offlames in a video format . The shorter the time , the less therequirement from the mount's tracking . So DSI surely can cause moreshifting in image than the web cam . However , such image shifting canbe recovered easily from any image-process software . And DSI is moresensitive than my ordinary web cam , ( even the price is moreexspensive ) , thus , I may use DSI to take moon photo in future , andtotally replace the use of a web cam . Because DSI is more generic inmy situation .


Clear skies everybody .

NO.5)

It's long time no take an astro picture ,
cause recently not always stay at home .
Tonight , I come to take a picture of Archimedes .
Ipick up the moon map , nevigate the moon surface for nearly 15 minutes. And center the eyepiece after I can locate the Archimedes . Then useweb cam to shoot it . Finally make the picture by Registax software .

NO.1 )

No.6 )

No.9 )

The moon is rising up the hill , behind a tree .
This moment leaves silently and fastly .

Thepicture was shooted at 7:00p.m tonight , within less than 10 secondstime . I focus on the tree , and let the moon become a bluredbackground .

NO.2)

NO.7)

Last night the moon was very bright , actually not a good time to take a image ,atmosphere was not stable as well .

Thistime I tried my new bought 1.25" 2X barlow together with the web cam .Previously I had failed to capture a good 3X barlow image , cause toobig magnification for my 4" telescope and blur the image indeed . Butthis time with 2X barlow , the image is still acceptable . I amsatisfield with this cheap price Barlow very much .

This timethe target is the "比利牛斯" mountain chain , the BillyNews mountain chain. You can also see some nearby crators , and such magnification is justenough for me , compared with those taken previously without the barlow

Finally, this time I write my report on the next day of observation night . Sothat I can have plenty of time to prepare a better image . Before Ididn't pay too much attention on the image processing indeed , cause Idon't have much time to try on the night time . So,this morning I amfree in office and try more on the software REGISTAX . I found it hasgood tools to make the image better and sharper . That's a good andneat software .

NO.10)

NO.11)