US ASTRONOMY
carnevali : Yesterday, 01:01 PM from morehead, KY
Yeah, Rupes Recta is tough. It certainly requires a night of good seeing (low atmospheric turbulence), a terminator not too far from it, decent optics, and some magnification. It is pretty though, a worthy subject for an image. And if you get that later you can push your ability farther and try to catch the nearby Birt Rille (or Brit Rille?); now, that's a really tough one to get. I think you can see it in the map-photo to the right and below the crater to the right of Rupes Recta.
MANDII : Today, 01:59 AM
I see . . . Carnevali .
You mean the 2nd crack line , halfly shorter one on the right hand side of Rupes Recta.
Next time ! I will definitely try my all effort to find out this Rupes Recta , at first most difficlut is to find it out under eyepiece . And then next step is to shoot it down onto paper(ha ha !) . If next time failed ( most probably ,Ha ha ! ) , I will try one more next time .
About the camera :
My DSI-I plus 2X barlow can reach around 12' FOV , under my 6"/F5 Newtonian scope .
If I am using a web cam , it's already 12' FOV without using of 2x Barlow .
Thus , my current plan , is to try web cam first !
because I can have over 1000 flames within 30 seconds time if I am using an ordinary web cam .
But It takes me over 5 minutes time to get these 1000 flames if I am using the DSI-I .
The more faster to get all these images , the less loading on my mount tracking and thus affact image quality .
Let's see it |
楼主
显身卡
