Recent Astronomy Articles at Cosmic Pursuits

The Elephant Trunk Nebula

September 24, 2024 by Brian Ventrudo Filed Under: Deep Sky

The nebula IC 1396, embedded star cluster Trumpler 37, and red supergiant star Mu Cephei (top). The nebula gets its power from the star HD 206267 near the center of this image. The tip of the Elephant Trunk Nebula lies just right of center.

Cepheus, the King, is an ancient and rather dim constellation, but its position along the northern Milky Way means it harbors more than its share of deep-sky sights including star clusters, nebulae, even the lovely Fireworks galaxy (NGC 6946). But the best field of view in the constellation encompasses three deep-sky sights including a star-forming nebula, a star cluster, and an aging red supergiant that’s one of the reddest and most luminous stars in the sky [Read more…] about The Elephant Trunk Nebula

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Get Ready for a Bright Comet!

August 30, 2024 by Brian Ventrudo Filed Under: Solar System

C/2023 A3 (Tsuchinshan-ATLAS) in June 2024 captured with an 8″ telescope. Image credit: ‘C. Messier’/Wikipedia under Creative Commons CC BY-SA 4.0 license.

The comet lives! At least so far…

In July, some astronomers suspected the promising comet C/2023 A3 (Tsuchinshan-ATLAS) was on its way to breaking into pieces and fading from view. But as the comet became lost in the Sun’s glare from Earth, satellite images showed it apparently still intact. This offers hope that this little interloper from the Oort Cloud will put on an appealing – and possibly spectacular – display in late September and October 2024 [Read more…] about Get Ready for a Bright Comet!

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Guide to Observing Saturn in 2024

August 20, 2024 by Brian Ventrudo Filed Under: Solar System

This composite image, taken by the NASA/ESA Hubble Space Telescope on 6 June 2018, shows the ringed planet Saturn with six of its 62 known moons.

Many casual observers get hooked on amateur astronomy after a first look at Saturn through a telescope. More than a few have looked through my small refractor on a night of good seeing and asked of Saturn, “Is it real?”

Oh, it’s real, all right. And incredibly beautiful… the color, the proportions, the apparent 3D perspective of this grand icy world. It is arguably the finest sight accessible with a small telescope. The planet reaches opposition on the September 7-8, 2024 and will remain bright and large in a telescope over the next few months. Here’s how to find it and see it in a small telescope.

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Summer Star Clouds

July 30, 2024 by Brian Ventrudo Filed Under: Deep Sky

At this time of year, just after darkness falls, we get to see the thickest part of the Milky Way extending over more than half the sky from Cygnus to Scutum to Sagittarius. And where there’s Milky Way, there are star clouds. Grab your binoculars or small telescope and take a tour of the best star clouds of a northern summer (and southern winter) with the recent article published in Sky & Telescope magazine. Inspired by the photographic work of E.E. Barnard in the early 20th century, this sky tour starts with the ‘Great Cloud’ of Sagittarius and works northwards, stopping to see many star clusters and dark nebula in and around these regions of shimmering starlight. It also includes visuals, especially the recent black-and-white film photography of James Cormier. Click on the image to the left to download the article on PDF format (it’s about 6MB). Then enjoy the tour!

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Touring the Summer Triangle

June 28, 2024 by Brian Ventrudo Filed Under: Deep Sky

Long-exposure images of the Summer Triangle (credit: Tien-Chu Chang, Flickr) — Long-exposure image of the Summer Triangle (credit: Tien-Chu Chang/Flickr)

While not a constellation itself, the Summer Triangle dominates the overhead sky in the northern summer and autumn months and guides stargazers to other stars, constellations, and deep-sky sights. The vertices of the triangle are marked by three bright stars Vega, Deneb, and Altair, each of which belong to true constellations Lyra, Cygnus, and Aquila, respectively. The image below shows the Summer Triangle rising as seen from mid-northern latitudes at 10 p.m. in mid July. The triangle is big: it spans about two full hand widths held at arm’s length. The triangle can be seen well south of the equator, too, above the northern horizon. Southern stargazers call it the “Northern Triangle” or the “Winter Triangle” [Read more…] about Touring the Summer Triangle

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