Tag Archives: Aurora

Astronomy News

MAJOR X-CLASS SOLAR FLARE

Space Weather News for Feb. 9, 2024
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MAJOR X-CLASS SOLAR FLARE: Today, the sun unleashed one of the biggest solar flares in years, a X3.4-class explosion from behind the sun’s southwestern limb. Solar protons energized by the flare are now raining down on Earth’s atmosphere, causing polar shortwave radio blackouts and other effects. The intensifying radiation storm could last for days. Follow this developing story @ Spaceweather.com.Solar flare alerts: Sign up for Space Weather Alerts to receive instant text messages when strong solar flares are underway
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Above: The extreme ultraviolet flash from today’s X3.4-class solar flare, recorded by NASA’s Solar Dynamics Observatory

Astronomy News

A SUNSPOT SO BIG YOU CAN SEE IT FROM MARS

A SUNSPOT SO BIG YOU CAN SEE IT FROM MARS: A huge sunspot (AR3363)  just emerged over the sun’s southeastern limb. Mars rover Perseverance saw it before we did. On July 2nd, the rover’s mast-mounted stereo camera (MASTCAM-Z) tilted up to the sky above Jezaro crater and photographed a deep-black dot on the solar disk:


Zoran Knez of Croatia assembled this montage using publically available NASA images

Perseverance does this all the time. Using a solar filter, the rover looks at the sun almost every day to check its brightness. When the sun dims, researchers know a dust storm is brewing–one of the most important forms of weather on the Red Planet.

Sunspots are just a bonus. A recent study shows that Perseverance sees more than 40% of all sunspots despite the fact that Mars is 78 million km farther from the sun than Earth and the rover’s camera doesn’t put many pixels across the solar disk. It is able to resolve about 10% of the biggest sunspots into multiple pixels.

Perseverance has one big advantage. It can see parts of the sun we cannot. From where Mars is currently located, Perseverance views more than half the sun’s farside, giving it a preview of sunspots still hidden from Earth. That’s how the rover spotted AR3363 days in advance.

People on Earth saw the sunspot for the first time on July 5th:

“A very big sunspot is coming!” says photographer Philippe Tosi of Nîmes, France, who inserted an image of Earth for scale.

Just don’t forget, Perseverance saw it first. Daily photos from Perseverance are available here. Select the date and camera (MASTCAM-Z), then start looking for sunspots.

more images: from Philip Smith of Manorville, New York; from P-M Hedén of Vallentuna Sweden; from Sylvain Weiller of Jerusalem, Israel

Astronomy News

Red Auroras, all the way to nearly Mexico!

While we were under pouring rain, this happened :
Space Weather News for April 24, 2023
https://spaceweather.com
https://www.spaceweatheralerts.com

LOW LATITUDE AURORAS: Last night during a severe geomagnetic storm, auroras spilled out of the Arctic Circle and descended almost all the way to Mexico. Reports of red lights in the sky are pouring in from the entire southern tier of US states including California, Texas, Arizona, New Mexico and Arkansas. Photos and movies @ Spaceweather.com.

Did you miss the storm? Sign up for Space Weather Alerts to receive instant text messages when geomagnetic storms erupt.

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Above: Red auroras over Ouray, Colorado. “After receiving numerous space weather alerts about the storm, I decided to take the camera out to catch the auroras — and there they were!” says photographer Matthew Genuit.
 
Astronomy News

Dazzling aurora !

Red is unusual. I have yet to see a red aurora. 
Some news items gleaned from news sites re last night’s show.
CPL
You don’t usually see the Northern Lights in southern Ontario, but Londoners got a treat from Mother Nature on Thursday, when the spectacular Aurora Borealis could be seen in the night sky.

Here are some pictures shared by Londoners.

The northern lights are green and purprle. Northern lights at around 11 p.m. on the outskirts of north London. (Supplied by Michelle Dzialakiewicz)
Red! Lots of red! Check out the pictures on the BBC: https://www.bbc.com/news/uk-england-york-north-yorkshire-65063765

Northern lights in Muston
Image source, WeatherWatchers/Steve BB Image caption, This display was spotted in Muston, near Scarborough in North Yorkshire
By Jess Grieveson-Smith
BBC News

The skies above parts of Yorkshire and Lincolnshire have been illuminated by dazzling displays of colour thanks to the Northern Lights.

Stargazers were able to spot hues of red, green and gold through Thursday night into Friday morning.

Lots more photos here: https://www.bbc.com/news/uk-england-york-north-yorkshire-65063765

Space Weather News for March 23, 2023
https://spaceweather.com
https://www.spaceweatheralerts.comSTRONG GEOMAGNETIC STORM: A strong geomagnetic storm is in progress on March 23rd as solar wind flows through a crack in Earth’s magnetosphere. If the crack remains open long enough, sky watchers in northern-tier US states could see auroras tonight. Also, an amateur radio astronomer in Florida has observed a solar radio burst *at midnight.* Weird! Read all about it on today’s edition of Spaceweather.com.Geomagnetic Storm Alerts: Subscribe to our Space Weather Alert Service and you’ll receive instant text messages when geomagnetic storms are underway.
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Above: Bright auroras at sunrise over Kalispell, Montana, on March 23, 2023. Credit: Philip Granrud

Space Weather News for March 23, 2023
https://spaceweather.com
https://www.spaceweatheralerts.com

STRONG GEOMAGNETIC STORM: A strong geomagnetic storm is in progress on March 23rd as solar wind flows through a crack in Earth’s magnetosphere. If the crack remains open long enough, sky watchers in northern-tier US states could see auroras tonight. Also, an amateur radio astronomer in Florida has observed a solar radio burst *at midnight.* Weird! Read all about it on today’s edition of Spaceweather.com.

Geomagnetic Storm Alerts: Subscribe to our Space Weather Alert Service and you’ll receive instant text messages when geomagnetic storms are underway.

Above: Bright auroras at sunrise over Kalispell, Montana, on March 23, 2023. Credit: Philip Granrud

 

Astronomy News

Possible Aurora on the 27th

Space Weather News for Feb. 25, 2023
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https://www.spaceweatheralerts.com

“CHAIN REACTION” EXPLOSION: Yesterday, a magnetic filament on the sun erupted, setting off a chain reaction that included a solar flare, two types of radio blackout, and a potentially Earth-directed CME. Minor to moderate geomagnetic storms are possible on Feb. 27th. Full story @ Spaceweather.com.

 
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Above: A magnetic filaments lifts off on Feb. 24th, the first step in a chain reaction of space weather events.

Astronomy News

GEOMAGNETIC STORM WATCH (G1-CLASS)

Space Weather News for March 26, 2022
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https://www.spaceweatheralerts.com

GEOMAGNETIC STORM WATCH (G1-CLASS): Yesterday, the sun launched a coronal mass ejection (CME) toward Earth. Forecasters are divided on when it might arrive–sometime between midday on March 27th and early March 28th. The impact could spark minor G1-class geomagnetic storms with equinox auroras boosted by the “Russell-McPherron effect.” Full story @ Spaceweather.com.

Solar Flare Alerts: Sign up for Space Weather Alerts and get instant text notifications when solar flares are underway.
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Above: Equinox auroras over Norway on March 20, 2022. Photo credit: Sirpa Pursiainen. For the latest sightings, check out Spaceweather.com’s real time Aurora Photo Gallery.

Astronomy News

NASA ROCKET PLUNGES INTO PULSATING AURORAS

Space Weather News for March 7, 2022
https://spaceweather.com
https://www.spaceweatheralerts.comNASA ROCKET PLUNGES INTO PULSATING AURORAS: Over the weekend, NASA launched a rocket from Alaska into an expanse of mysterious pulsating auroras. This type of aurora, which is a bit like a strobing checkerboard, is a favorite among tour guides because it is so unusual and mesmerizing. Researchers are just beginning to understand what makes it tick. Full story @ Spaceweather.com.

Solar Flare Alerts: Sign up for Space Weather Alerts and get instant text notifications when solar flares are underway.

Above: A NASA sounding rocket launches into pulsating auroras over the University of Alaska’s Poker Flat Research Range on March 5th. Photo credit: Marketa S. Murray of The Aurora Chasers.
Astronomy News

SIGNIFICANT X-CLASS SOLAR FLARE

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Space Weather News for Oct. 28, 2021
https://spaceweather.com
https://www.spaceweatheralerts.com

SIGNIFICANT X-CLASS SOLAR FLARE: There was a global eruption on the sun today. It started with a powerful X1-class solar flare from sunspot AR2887. The blast created a massive tsunami of plasma in the sun’s atmosphere, which rippled across the entire solar disk. A CME is probably heading for Earth, raising the possibility of a geomagnetic storm on Halloween. More information and updates @ Spaceweather.com.

Solar Flare Alerts: Sign up for Space Weather Alerts and get instant text notifications when solar flares are underway.

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Above: An X1-class solar flare on Oct. 28, 2021. Photo credit: Pepe Manteca of Barcelona, Spain

Astronomy News

March : most geomagnetically active month of the year

Space Weather News for March 1, 2021
https://spaceweather.com
https://www.spaceweatheralerts.com

GEOMAGNETIC STORM: Did you know, March is the most geomagnetically active month of the year? Today is March 1st and, right on cue, the strongest storm of new Solar Cycle 25 erupted. Bright auroras spread across Canada and Alaska during the G2-class event. Visit Spaceweather.com to find out what makes March so lively.

Instant solar flare alerts: Sign up for Space Weather Alerts and receive a text message when strong solar flares are underway.
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Above: Auroras in bright moonlight over Fairbanks, Alaska, on Feb. 28-March 1, 2021. Photo credit: Ayumi Bakken. Check out our Aurora Photo Gallery!

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Astronomy News

New phenomenon discovered in Aurora — green cannonballs!

Space Weather News for Nov. 25, 2020
https://spaceweather.com
https://www.spaceweatheralerts.com

LITTLE GREEN CANNONBALLS OF LIGHT: Researchers and citizen scientists have just discovered a new phenomenon: “Little green cannonballs of light” streaking through the atmosphere faster than 1000 mph during some geomagnetic storms. And they’re not auroras. Visit today’s edition of  Spaceweather.com for the full story.

Aurora alerts: Sign up for Space Weather Alerts and receive a text message when auroras appear in your area.
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Above: Pure green spheres of light streaking through the atmosphere, photographed by sky watchers in Canada, New Zealand, and the USA. [Full story]

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