3.09.2022 AR3089

[Rusted]

A new weather system has arrived form the SE. Bringing cloud but steadier air.
I have increased the frame size to 1216x1216 for a change from 912x912.
 

 

 

[Altocumulus]

Marvellous. 

[Rusted]

Thanks Geoff.

I owe it all to the slightly improved seeing and the Lunt 60MT etalon.
The Lunt etalon's clear aperture is 35mm in diameter compared with the much smaller PST etalon. [20mm?}
The Lunt etalon doesn't seem to suffer from the tiny sweet spot of the PST.
With the PST etalon I normally needed to use an 800x800 frame size or smaller.
Today's image, with the Lunt, is evenly bright across a much larger 1216x1216 frame.
 

[Steve Ward]

Ouch ..... just singed my eyebrows opening that one ... 😯