astrophotography by bill w

during the day, falcon-9 launches are visible for 100 miles.  at night, they can be visible for hundreds of miles, and just after sunset, th...

prominence 1/10/2024 21:11.3 UTC (1:11 PM local) working from home thanks to covid, saw a medium size prominence with a thick short/wide T-s...

 Warning: boring details regarding planetary image processing ahead.   Planetary imaging is best done these days with a web cam capturing sh...

Renowned amateur astronomer Christopher Go appealed to the OCA for images of Jupiter so I've been cranking them out and working on my t...

Jupiter is the fastest rotating planet in our solar system, with a day lasting only 10 hours.  thus Jupiter's Great Red Spot (aka small ...

Jupiter put on a nice show for west coast observers last weekend: Jupiter's moon Io and it's shadow transited the planet's surfa...

jupiter is bright in the evening sky now.  well positioned for northern hemisphere viewers, it transits just before midnight at an altitude ...