Re: [time-nuts] Heliostat

2016-07-02 Thread Bob Camp
Hi The most common use was to reverse the process …. you used it to obtain local solar time. Bob > On Jul 2, 2016, at 3:12 PM, Brooke Clarke wrote: > > Hi: > > I recently got an Eastern Science Supply Co. demonstration heliostat, that's > to say it's small enough to

Re: [time-nuts] Heliostat

2016-07-02 Thread Scott McGrath
Hi Brooke Primary use of heliostats in astronomy is solar observation Content by Scott Typos by Siri > On Jul 2, 2016, at 3:12 PM, Brooke Clarke wrote: > > Hi: > > I recently got an Eastern Science Supply Co. demonstration heliostat, that's > to say it's small enough to

[time-nuts] Heliostat

2016-07-02 Thread Mark Sims
Lady Heather can display solar times. Set the time zone name to SST or SDT (there is also a command line option). Heather can also calculate and display the sun and moon positions and moon phase. The next release has some improvements to the equation of time calculation. Also, be aware

[time-nuts] Heliostat

2016-07-02 Thread Brooke Clarke
Hi: I recently got an Eastern Science Supply Co. demonstration heliostat, that's to say it's small enough to easily hand hold. I've go it working but have some questions. Based on some Waterbury Clock Co. patents I think is was made in the late 1920s or early 1930s. ESSCo was into astronomy.