Category: Astronomical
Visualization of the Cislunar Potential
In the past few days I’ve been following the playback of the Apollo 11 mission in “real time” (delayed exactly 50 years) at https://apolloinrealtime.org/11/. Among all the news rel... Read More
Summer Solstice 2019 in Wooster Hall
As we have done in past years, a small group of those interested came to Wooster Hall to observe the skylight lights cross over the staircase at Solar Noon (at 12:58:16 EDT). This year the actual Sols... Read MoreVernal Equinox 2019
What a difference a year makes. Last year I made a time-lapse video of the Vernal equinox in Wooster Hall by standing next to a wall and taking a photo about once a minute for an hour. This year I hav... Read More
Wooster Hall Rooftop Mystery
A few weeks ago I visited Wooster Hall with a time-lapse camera to try to see what happens to the light from the skylight over the main staircase at solar noon on the Winter Solstice. I was a few da... Read More
Winter Solstice in Wooster Hall
Wooster Hall at SUNY New Paltz has a neat feature: the main staircase is aligned directly North/South, and skylights are positioned above it so that at solar noon on the equinoxes the bottom of the ... Read MoreRunning a task at a specified time on a Mac
Unix computers have a simple command-line feature called “at” which lets you schedule a command, or a series of commands, to be run at a specific time. For example, if you want to dow... Read More
Summer Solstice in Wooster Hall
Wooster Hall at SUNY New Paltz has a neat feature. The main staircase is exactly aligned along a north-south line, and skylight windows in the ceiling were placed so that light from those windows ... Read More
Vernal Equinox in Wooster Hall: Irregular Interval Time-Lapse Animation
Wooster Hall on the SUNY New Paltz campus was completely remodeled recently, and a neat new feature is an alignment of the skylight over the main stairway such that the bottom of the stairs is lit up ... Read More