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Brian Ventrudo

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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Filed Under: Deep Sky

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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Filed Under: Deep Sky deep sky, milky way, sky tour

The Eta Carinae Nebula

May 24, 2024 by Brian Ventrudo Filed Under: Astronomy Images and Video, Deep Sky

The Eta Carinae Nebula, just above center, seen in this wide nightscape image of the southern Milky Way in 2023 from the Rio Hurtado region of northern Chile. Image credit: Brian Ventrudo

The Eta Carinae Nebula, the jewel of the southern-hemisphere constellation Carina, the Keel, is the most spectacular example of an active star factory in all the heavens. The nebula is about 260 light years across, some seven times larger than the Orion Nebula. And while 7,500 light years away, five times farther away than Orion, it’s still easily visible to the even the most casual stargazer as a large frosty patch three times as wide as the full Moon in the Milky Way west of the constellation Crux, the Southern Cross [Read more…] about The Eta Carinae Nebula

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Filed Under: Astronomy Images and Video, Deep Sky astrophotography, deep sky, nebula

Touring Queen Berenice’s Hair

April 11, 2024 by Brian Ventrudo Filed Under: Deep Sky

An historical representation of the constellations Bootes, Canes Venatici, and Coma Berenices (lower right).

Let’s take a look at the ancient constellation Coma Berenices, a faint group of stars tucked under the handle of the Dipper halfway between the stars Arcturus and Denebola in Leo’s hindquarters. There is something for everyone here: history and legend, a beautiful naked-eye star cluster that invites careful inspection, and dozens of galaxies to explore with a modest telescope. And armchair astronomers can contemplate the immensely distant Coma Cluster of Galaxies, some 300 million light years away, that first yielded evidence for the mysterious dark matter that makes up a good portion of the universe [Read more…] about Touring Queen Berenice’s Hair

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Filed Under: Deep Sky coma berenices, constellation, melotte 111

Live Stream and Resources for the Total Solar Eclipse of April 8, 2024

March 31, 2024 by Brian Ventrudo Filed Under: Solar System

The ‘Diamond Ring’ emerges just as totality ends on August 21, 2017. Image credit: Amanda Ventrudo.

On April 8, 2024, a total solar eclipse will pass in a narrow band across Mexico, the continental United States, and southeastern Canada. Millions of people live within a day’s drive of the narrow path of this eclipse, so it may be one of the most watched astronomical events in history. If you’re heading to the path of totality, or if you’re planning to observe the partial solar eclipse off the path of the lunar umbra, I wish you safe travels and clear skies! And if you’re not traveling, or if you’re facing clouds, or you simply want to know what’s happening with this rare celestial event, here are a few resources and readings about this eclipse and solar eclipses in general. [Read more…] about Live Stream and Resources for the Total Solar Eclipse of April 8, 2024

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Filed Under: Solar System

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