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Mars tonight


 

I am belt folded stapled and mutilated. 1145 at night and I just wrapped up a couple of hours with Mars. Started the night with a few doubles but had a tough time getting into a rhythm. Mars got high enough to start about 9 or 9:30. Seeing was quite variable. The clouds cleared out around 8:45. I used the 4 inch SV with various EPs. The best was the Takahashi TOE 3.3mm oddly. Normally I quit power at the 4mm Zeiss but I have found sometimes when seeing isn't the best, push harder. At least it will be big and when it does settle you will see the details easier. The TOE 3.3mm gave 239X. A 30A Magenta Vernonscope filter was used for the observation.

I did try some of the old 0.956 Orthoscopic EPs with an adapter. They work quite well in the F/8 scope but I needed more power than my collection of Zeiss and Takahashi older orthos could muster. Excellent quality though. Would work well on Jupiter.

The pole was quite visible with a dark band around it which is listed as Utopia. The Hellas basin showed well also surrounded by a dark area of Mare Tyrrhenum. Syrtis Major was rotating on to the face when I quit. This is the first time I've seen Syrtis Major this year.

The disc is getting larger now and you can positively do good work. Tonight required a lot of patience as seeing was very on off. When it was good for moments you could use the higher powers to see the detail. One nice thing about the old F/17 scope is the generous focus window. The modern faster scopes have a much narrower focus range. You had to be on focus tonight to see the best detail in this poor seeing. That makes achieving focus a bit of a challenge. Anyways very acceptable night even if it wasn't great.