Just like Ramadan 2019 Moon Sighting was fraught with false claims of sighting the crescent, which the courts in Saudi Arabia took at face value without basic confirmation against astronomy.

It seems that Ramadan 2020 is also set to suffer from the same faults.

If you look at this screen capture from Stellarium, a free astronomical planetarium program, you will see sunset on Wednesday the 22nd of April 2020, near Kitchener, Ontario, Canada.

Today, I saw the most bizarre thing.

But first, a backgrounder: here in Southern Ontario, there are two types of day time squirrels: the larger grey squirrel, and the tiny red squirrel. What the latter lacks in size, he makes for it by being very aggressive towards the larger greys, often chasing them off from several backyards at a time. The reds also object to humans being present by chattering in a bird like manner.

So what happened today?

For those of us who do astronomy, whether visually or for astrophotography, polar alignment is a procedure that we are familiar with, and have to do before every observing sessions, unless we have a permanent observatory.

Here is a time lapse sequence of Comet C/2018 N2 (ASSASN).

This comet was discovered by the All-Sky Automated Survey For Supernovae (ASSASN) using software to analyze the images from one night to the next, and detect anything that is not a star.

The sequence was made on October 8th, 2019, between 1:35 am and 2:11 am while the comet was near the Triangulum constellation, and the M33 galaxy.

Today, I released my OnStep Python API on Github. This API allows commands to be issued from any Python 3.x program to an OnStep controlled telescope.

This allows a lot of use cases, for example, testing certain scenarios, or automating certain tasks.

Several examples are provided as starting points on how to write your own programs.

Patches for features, and fixes are welcome.

For this year's Eid Al-Fitr 1440 A.H. (2019 C.E.), the Muslim world had some countries, as well as some masjids in the West, ending the Ramadan fast on Tuesday. In Kitchener/Waterloo, we had the Kitchener mosque, following astronomical calculations, end the fast on Monday, while the Waterloo Masjid, following sighting, ended it on Tuesday.

Update: The same happened again on February 17th, 2026 C.E. It was impossible to sight the crescent of the new moon for Ramadan, yet the courts in Saudi Arabia uncritically accepted testimonies of sighting, despite this impossibility.

Yesterday, I released ETL-Astro, a set of Python programs that generate astronomical catalogs in a variety of formats from license friendly data source, allowing for incorporation in GPL-licensed products.

The programs can do the following:

This is a short video demonstrating how to use a Hall Effect sensor and a magnet to implement Periodic Error Correction (PEC).

Here is an example on eBay for a standalone 3144 Hall Effect Sensor. And here are the small neodymium magnets.

This is a time lapse video of Comet Iwamoto C/2018 Y1, on February 22nd 2019, racing against the background stars of the skies. Note that the comet occults two stars during this video. This is a composite of 51 exposures of 60 seconds each, at ISO 800. Taken using a Celestron C8 with a 0.6X reducer on a Vixen SXD mount running OnStep, and a Canon T4i DSLR.

This is a composite video of Comet 46/P Wirtanen done from 41 exposures of 30 seconds each.

They were taken on 2019-12-19, using a Vixen SXD mount converted to OnStep, a Celestron C8 with 0.6X reducer, and a Canon T4i DSLR. You can see the comet racing against the background stars.