What a back and forth summer it’s been.
June’s trip to Marathon was fraught with gear issues, most notably my AP Mach1 GTO literally grinding itself to bits, thanks to some seized bearings.
Upon returning, the mount immediately went back to Astro-Physics, who thankfully did their usual terrific job of diagnosing, repairing, and returning the mount to me in tip top shape.
The Lunt LS50THa also got a long-needed trip back home, where the fine folks at Lunt Solar Systems diagnosed a clouded blue glass filter causing an inability to achieve any sharp images.
Lunt’s repair and turnaround was lightning fast, and they even installed a new Feather Touch Focuser for me while there.
The AP gods weren’t done though! Earlier this month, a limit switch failed on the obs roof that resulted in the roof always reporting closed…bit of an issue, that. A new set of limit switches from Amazon resolved that issue.
One upcoming event of note : On September 9, 2018 at 7:30 AM CDT/12:30 PM UTC I’ll be livestreaming an ISS transit of the Sun, hopefully through both the Lunt and the SV80. The transit itself should occur shortly after 7:50 AM CDT. Fingers crossed for good weather!
Techy data from Transit Finder
Sunday 2018-09-09 07:50:08.39 • Solar transit
ISS angular size: 24.62″; distance: 1122.23 km
Angular separation: 0.0′; azimuth: 95.6°; altitude: 16.5°
Center line distance: 0.04 km; visibility path width: 16.33 km
Transit duration: 2.20 s; transit chord length: 31.8′
R.A.: 11h 11m; Dec: +05° 12′; parallactic angle: 46.3°
ISS velocity: 14.4 ′/s (angular); 4.70 km/s (transverse)
ISS velocity: 5.68 km/s (radial); 7.37 km/s (total);
Direction of motion relative to zenith: -134.1°
Sun angular size: 31.8′; 77.4 times larger than the ISS