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Recent Astronomy Articles at Cosmic Pursuits

The Full Moon Occults Mars at Opposition

November 30, 2022 by Brian Ventrudo Filed Under: Solar System

Mars approaches a grazing lunar occultation on September 5, 2020. Image courtesy of Delberson Tiago de Souza at Astrobin under the Creative Commons License.

Set a reminder – and hope for clear sky – on the night of December 7-8 as a remarkable event takes place – a full December ‘Cold Moon’ passing in front of Mars just two hours before the planet reaches opposition. The event is visible through parts of western Europe, Canada, and the U.S. except for the eastern seaboard, the southeast, and Alaska. You can see the event without optics, with binoculars, or the telescope of your choice. It will be an astronomical event to remember [Read more…] about The Full Moon Occults Mars at Opposition

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Filed Under: Solar System mars

Milky Way Photography on Medium-Format Film – A Q&A With James Cormier

November 1, 2022 by Brian Ventrudo Filed Under: Astronomy Images and Video, Deep Sky

The Pipe Nebula and Milky Way in Scorpius on Fujifilm Acros film shot with a Pentax 6×7 medium format camera. Image credit and copyright: James Cormier.

Before the days of sensitive, low-noise digital cameras, amateur and professional astronomers used chemical emulsions on cellulose film or glass plates to record photographic images. But film astrophotography was not for the faint of heart – it took time, patience, and more than a little skill to produce good images of deep-sky objects or the Milky Way. Modern digital cameras now make astrophotography so much easier, of course, so why would anyone use film anymore? [Read more…] about Milky Way Photography on Medium-Format Film – A Q&A With James Cormier

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Filed Under: Astronomy Images and Video, Deep Sky

Guide to Observing Mars in 2022

October 25, 2022 by Brian Ventrudo Filed Under: Solar System

An image of Mars captured by Damian Peach in June 2018.

The planet Mars is one of the most interesting planets to observe with a small telescope, but also one of the most difficult. The planet only gets close enough to Earth to give up much detail just once every 780 days (about two years and two months), and when it does make an apparition, it still appears relatively small compared to Jupiter or Saturn. But observing Mars is worth the effort. It’s the only planet to reveal an appreciable amount of surface detail in a small telescope, and it also features occasional surprises such as dust storms and local fogs and cloud banks.

Seeing Mars takes a little practice, however, as well as the right tools for the job. This guide will help you understand what you can see on the surface of Mars, especially during the time before and after the opposition of December 8, 2022. And it will help you get the best view of this remarkable world with a telescope and a few essential accessories [Read more…] about Guide to Observing Mars in 2022

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Filed Under: Solar System mars, opposition, planet, solar system

Waning October Moon and Autumn Leaves

October 12, 2022 by Brian Ventrudo Filed Under: Solar System

The waning Moon on October 12, 2022 just three days past the full “Hunter’s Moon”. The fall colors linger as the trees slowly shut down their chlorophyll production, revealing the orange and yellow carotenes in their aging leaves. At the next full “Beaver Moon” on November 8, these trees will very likely find themselves covered with snow. This image was captured on Kodak Ektar 100 film with an old Nikon FE camera and Nikon Series E 75-150mm zoom lens, both circa 1980. There’s no school like the old school.

Autumn wind clear
Autumn moon bright,

Fallen leaves gather in piles then scatter,
And crows settling in, cold, startle away.

Will we ever see, ever even think of each other again?
This night, this moment: impossible to feel it all.

Poem by Li Po (c. 701-762 A.D.), translation by David Hinton

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Filed Under: Solar System

Dark Sky at Last – A Trip Through the Summer Milky Way

September 24, 2022 by Brian Ventrudo Filed Under: Deep Sky

Dark sky: there is no substitute.

It had been two years since I’d had a good look at the summer Milky Way. At my latitude, it doesn’t get dark enough for visual stargazing from late May to late July, and clouds, smoke, moonlight, and the vicissitudes of life disposed of the remaining late summer nights. But this week delivered what I’ve long awaited – a promising forecast of two nights with a crystal-clear atmosphere and no moon. The excuses were over – it was time to drive an hour west of town to my favorite dark-sky site with a telescope, a bag of eyepieces, and a star map in the back seat. If I was going to see the Milky Way before winter comes, it was now or never.

[Read more…] about Dark Sky at Last – A Trip Through the Summer Milky Way

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Filed Under: Deep Sky milky way

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