A few minutes before midnight on 17 December 1965, I began a program of hunting for comets and exploding stars, or novae. I recall writing at the time that when I began, the interest would primarily be in comets. It still is, even though I independently discovered Nova Cygni 1975 (V1500 Cygni), and a second nova Cygni (V1668 Cygni) in 1978.… Continue reading.
Here’s a brief look at what’s going on in the Mile High City this week.
February 2: Catch the waning gibbous Snow Moon near Regulus and the Sickle Asterism: look for the moon to add to the already bright alpha star In the constellation Leo at the tip of the backward question mark that is known as the Sickle asterism in the eastern skies around 8:00 PM.… Continue reading.
Here’s a brief look at what’s going on in the Mile High City this week.
January 26: DAS E-Board Meeting: Members’ only virtual event (Check Slack and membership email for details): 7:00 PM January 27: Catch the Moon next to the Pleiades, a bright, easily visible open star cluster in the constellation Taurus, also known as Messier 45, or the Seven Sisters.… Continue reading.
Unfortunately, this weekend’s Denver Astronomical Society Open House, scheduled for Saturday, January 24, has been canceled due to weather.
The forecast is calling for bitterly cold temperatures along with snow Friday night into Saturday, creating conditions that aren’t safe or comfortable for our volunteers or visitors.… Continue reading.
If you’re looking for a truly unique astronomy experience, Green Bank Star Quest XXI deserves a spot on your observing calendar. Held July 15–18, 2026, this four-day event is the largest star party in the nation that combines both optical and radio astronomy, bringing amateur astronomers together at one of the most iconic astronomy sites in the world.… Continue reading.
Here’s a brief look at what’s going on in the Mile High City this week.
January 19 (Martin Luther King Jr. Day): Celebrating the legacy of the Reverend Dr. Martin Luther King, Jr. January 20: Catch Jupiter within half a degree of Wasat: Delta Geminorum, the third-brightes star in the constellation Gemini, is a bright triple star system whose name means “middle” in Arabic, reflecting its position in the middle of the body of the eastern twin, Pollux: Find it and the gas giant in the eastern sky just after sunset.… Continue reading.
Here’s a brief look at what’s going on in the Mile High City this week.
January 12: DAS General Meeting: Nominations of Officers (Free in-person meeting): 📍Secular Hub: 7:00 PM January 13: The waning crescent Wolf Moon reaches apogee, its farthest from Earth at 405,438km: 2:00 PM January 14: Catch the waning crescent Wolf Moon near Antares, the bright red alpha star in the constellation Scorpius low in the eastern sky around 5:30 AM January 15: Standley Lake Stargazing (Free virtual program): Online via Zoom: 6:00PM January 16 (Dark Sky Weekend): Check out the Great Red Spot of Jupiter, with the king of our solar system having reached opposition this past week, it is extremely bright and large in the night sky.… Continue reading.
Chimney Rock National Monument is best known for its dramatic twin stone spires and its deep cultural significance to the Ancestral Puebloan people. The site was designated a National Monument in 2012 by President Barack Obama, ensuring long-term protection of both its archaeological treasures and its natural environment.… Continue reading.
Here’s a brief look at what’s going on in the Mile High City this week.
January 5: Look for the shadow transit of Io across Jupiter’s face followed closely by the moon itself. With Jupiter close to its opposition on January 10th, Jupiter’s moons and their shadows cross the planet very close together.… Continue reading.
This is the third installment of a three-part series exploring the wonders of Denver’s night skies. Be sure to check out the other articles in the series: What to Explore in the 2026 Denver Night Skies and When to Explore in the 2026 Denver Night Skies.… Continue reading.