SECTUAL

The biggest was April 3, 1947...

https://www.popastro.com/main_spa1/solar...t-sunspots

Hmmm, just a few months later was the Roswell incident July 1947

Yeah, I was thinking about WW2. It didn't dawn on me that Roswell happened around that time, but I knew there was something significant about those years.

Quote:Here is a view of the full solar disk during a two-week period in October and November of 2003 which exhibited some of the largest solar activity events since the advent of space-based solar observing.

https://svs.gsfc.nasa.gov/3503

Today:

https://i.imgur.com/ZS4H1zd.jpg

Iconic 2003 solar flares...

https://spaceflightnow.com/news/n0310/28flare

This is still my fave solar flare pic of all time though...

https://i.imgur.com/4N3B3uG.gif

CMEs are the greatest thing ever.

Here it is in video format...

https://soho.nascom.nasa.gov/hotshots/2003_11_04

The only time I care to see snow is on the LASCO C2...

https://sci.esa.int/web/soho/-/47806-las...e-of-a-cme

Quote:The LASCO instruments are not the newest. They were built in the late 1980s, when a digital camera was something very special. Sometimes disturbances do happen.

There are two kinds that repeatedly occur:

1. Blackouts and Whiteouts, in broken lines, circle-like shapes, or over the whole picture. They are caused by the electronics box. There has never been a firmware update, since it was judged as too sensitive changing the flight-software.

2. Black and white pixels, occurring in patterns, without pattern or alone. Those "missing blocks" are telemetry dropouts, caused by radio interference or a disturbance in the data transfer to Goddard Space Flight Center.

https://en.wikipedia.org/wiki/Large_Angl...oronagraph

Quote:Daguerrotype image of the sun made by Louis Fizeau in 1845

https://sunearthday.nasa.gov/2006/locati...tphoto.php

https://es.wikipedia.org/wiki/Experiment...y_Foucault

https://es.wikipedia.org/wiki/Experiment...Fig163.png

https://nso.edu/telescopes/dkist/first-l...mage-wdunn

Looks like liquid gold.

There's a nice one just now coming into view on the left...

https://i.imgur.com/TEZaPRz.jpg

https://i.imgur.com/bMOu5rx.jpg

Lookin' good.

https://www.spaceweatherlive.com/en/solar-activity.html

This is a really cool page.

We've really stepped up our real time monitoring of Sol's activity over the years!?

Kind of ashamed to say I've never even explored this site before...

https://www.spaceweatherlive.com/en/sola...-cmes.html

They even have the corresponding photo of the CME beside each listing...

Wow, I'm gonna have to make it a point to look at this daily.

I usually just go to the SDO/NASA site instead. Or SpaceWeather.com.