Posts by 

Guy Ottewell

Venus passages compared: 2017 to 2022

Venus will sweep near the sun in our sky (inferior conjunction) on January 8-9. Astronomer Guy Ottewell uses his great skill at illustration to compare this with past Venus passages.

The 5 petals of Venus and its 8-year cycle

Learn about the 8-year cycle of Venus in our sky and the petals of Venus, a rhythmic motion of Venus when viewed from an Earth-centered perspective.

Past-and-future Earths ring in New Year

Past-and-future Earths. A novel way of picturing ourselves riding on Earth, orbiting the sun, from astronomer Guy Ottewell.

The late June evening sky is rich

Here are charts showing the late June evening sky in 2021, from master chartmaker Guy Ottewell. One looks west after sunset. One looks from above.

Swimming up sky and up river

A couple of charts from master chart-maker Guy Ottewell, showing Mercury in the sky now and throughout 2021. Plus a word about a lost whale ...

A magnified view of Jupiter and Saturn at conjunction

On December 21, 2020, Jupiter and Saturn will be only 1/5 of a moon-diameter apart! Guy Ottewell offers insights and charts showing a magnified (telescopic) view of their once-in-20-years great conjunction.

Earth in the balance today

Guy Ottewell's insights on today's autumnal equinox.

2020 is your year to see Capricornus

Poor Capricornus. The early Greek stargazers labeled it as a Sea Goat, but no amount of squinting - or even imagining - can help you see a Goat in this part of the sky. In 2020, Jupiter and Saturn come to the rescue!

Planetary alignment? Increase in volcanoes?

The book called "The Jupiter Effect" suggested an alignment of planets in 1982 would cause earthly catastrophes, including a great earthquake on California's San Andreas Fault. There's another planetary alignment, of sorts, going on now. Will it cause volcanic eruptions? Charts, and info, from Guy Ottewell.

Insights on Saturn at opposition

Astronomer Guy Ottewell offers his insights - and chart-making skills - to you during this 2020 opposition of our solar system's golden and glorious planet of the rings, Saturn.