The popular and information Astronomical Calendar for 2024 by Guy Ottewell is available. It comes in either electronic or printed form. Learn more here.
The difference between apparent solar time (the actual time between noons) and mean solar time (the average time between noons) is called the equation of time.
Comet C/2021 T4 Lemmon was discovered at Mount Lemmon Observatory in 2021. It's currently in the southern skies and might become bright enough for binoculars.
Astronomer Guy Ottewell uses 2 charts - showing 2 different volumes of space - to contemplate and question the density of red dwarf stars in our Milky Way.
Astronomer Guy Ottewell discusses how the recent discovery of a star swallowing a late planet can help refine an estimate for part of the Drake Equation.
Astronomer, artist and poet Guy Ottewell's beloved Astronomical Calendar ended its yearly print run in 2016, its 43rd year. But now it's back! Find the 2023 calendar here: https://www.universalworkshop.com/astronomical-calendar-2023/ And visit Guy’s website UniversalWorkshop.com or his blog at UniversalWorkshop.com/Guysblog. Guy's stories and art are used here with permission, and we are honored to have them. Thank you, Guy! The image shows Guy walking from the Carolina coast to the Blue Ridge mountains one spring (as depicted in Sky & Telescope magazine).