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Mars_B4_Moon

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Registered: 2006-03-23

Posts: 9,776

Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

Aditya L1 is a planned coronagraphy spacecraft to study solar atmosphere, currently being designed and developed by the Indian Space Research Organisation (ISRO) and various other Indian research institutes

“Chandrayaan-3, we will have this year end or next year beginning..discussions underway about the next mars mission..now we’re going to the Sun- Aditya-L1 by June-July..mission to asteroid, to Venus are at discussion level as I understand” Umamaheswaran, isro HSFC Director
https://twitter.com/sdhrthmp/status/1619543335416532993

ISRO organises workshop for Chandrayaan-3 mission
https://www.thehindu.com/news/cities/ba … 699438.ece

China’s New Solar Observatory is Almost Ready for its Trials
https://www.universetoday.com/161087/ch … ts-trials/
There’s a new solar observing facility taking shape in China. It lies far up on a mountain near Mangya City in the Mongol and Tibetan autonomous prefecture of Qinghai. The telescope is reputed to be the world’s first mid-infrared telescope built for accurate measurements of the solar magnetic field.
The new observatory joins a collection of 35 astronomical telescopes—some already in construction and others in planning—arrayed across the grounds of the Lenghu Astronomical Observation base. That’s a reserve located some 4000 meters up in the Quighainan Mountains. It’s run by the National Astronomical Observatories of China and the Chinese Academy of Sciences.

Some APOD pics

Northern Lights over Southern Europe
https://apod.nasa.gov/apod/ap230425.html

Solar Eclipse from Western Australia
https://apod.nasa.gov/apod/ap230421.html

Last edited by Mars_B4_Moon (2023-04-28 04:18:21)

Mars_B4_Moon

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Registered: 2006-03-23

Posts: 9,776

Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

Superflare With Massive, High-velocity Prominence Eruption

https://spaceref.com/science-and-explor … -eruption/

A team of Japanese astronomers used simultaneous ground-based and space-based observations to capture a more complete picture of a superflare on a star. The observed flare started with a very massive, high-velocity prominence eruption. These results give us a better idea of how superflares and stellar prominence eruptions occur.

Some stars have been seen releasing superflares over 10 times larger than the largest solar flare ever seen on the Sun. The hot ionized gas released by solar flares can influence the environment around the Earth, referred to as space weather. More powerful superflares must have an even greater impact on the evolution of any planets forming around the star, or the evolution of any life forming on those planets. But the details of how superflares and prominence eruptions on stars occur have been unclear.

A team led by Shun Inoue at Kyoto University used the 3.8-m Seimei Telescope in Japan and the Transiting Exoplanet Survey Satellite (TESS) to monitor the binary star system V1355 Orionis which is known to frequently release large-scale superflares. V1355 Orionis is located 400 light years away in the constellation Orion.

The team succeeded in capturing a superflare with continuous, high temporal resolution observations. Data analysis shows that the superflare originated with a phenomenon known as a prominence eruption. Calculating the velocity of the eruption requires making some assumptions about aspects that aren’t directly observably, but even the most conservative estimates far exceed the escape velocity of the star (347 km/s), indicating that the prominence eruption was capable of breaking free of the star’s gravity and developing into Coronal Mass Ejections (CMEs). The prominence eruption was also one of the most massive ever observed, carrying trillions of tons of material.

Mars_B4_Moon

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Registered: 2006-03-23

Posts: 9,776

Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

Powerful sun storm could supercharge auroras this week

https://www.space.com/solar-storm-super … s-may-2023

Mars_B4_Moon

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Registered: 2006-03-23

Posts: 9,776

Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

China-led team finds first evidence of oldest stars in the universe

https://www.scmp.com/news/china/science … s-universe

Mars_B4_Moon

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Registered: 2006-03-23

Posts: 9,776

Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

Parker Solar Probe Flies Close Enough to the Sun to See the Source of the Fast Solar Wind

https://www.universetoday.com/161891/pa … olar-wind/

Mars_B4_Moon

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Registered: 2006-03-23

Posts: 9,776

Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

The Sun Reaches Solar Maximum in 2032. A new NASA Flagship Mission Could Give Us a Perfect View

https://www.universetoday.com/161899/th … fect-view/

Mars_B4_Moon

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Registered: 2006-03-23

Posts: 9,776

Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

Why is the Sun’s corona so much hotter than its surface? Even though NuSTAR typically sets its sights on objects outside our solar system, it teamed up with solar observatories to help us investigate one of the Sun’s biggest mysteries

https://twitter.com/NASAUniverse/status … 2997654530

Mars_B4_Moon

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Posts: 9,776

Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

ESA's sun-watching Proba-3 formation flyers tested for take-off

https://skyheadlines.com/proba-3/

Mars_B4_Moon

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Registered: 2006-03-23

Posts: 9,776

Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

Sun breaks out with record number of sunspots, sparking solar storm concerns

https://www.space.com/sun-highest-sunsp … since-2002

Mars_B4_Moon

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Registered: 2006-03-23

Posts: 9,776

Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

Giant solar eruption felt on Earth, Moon and Mars

https://www.spacedaily.com/reports/Gian … s_999.html

A solar eruption detected simultaneously at Earth, the Moon and Mars emphasises the need to prepare human exploration missions for the dangers of space radiation.

https://www.esa.int/Science_Exploration … n_and_Mars

Last edited by Mars_B4_Moon (2023-08-17 11:03:41)

Mars_B4_Moon

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Posts: 9,776

Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

How Webb Discovered a Star That Shines from the Edge of Time

https://www.youtube.com/watch?v=kUW2KpWQcqA

Mars_B4_Moon

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Posts: 9,776

Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

Strong solar flare erupts from sun

https://phys.org/news/2023-08-strong-so … s-sun.html

This flare is classified as an X1.6 flare. X-class denotes the most intense flares, while the number provides more information about its strength.

This Brown Dwarf is 2,000 Degrees Hotter Than the Sun

https://www.universetoday.com/162810/th … n-the-sun/

Astronomers have discovered an intense binary star system located about 1,400 light years away. It contains a brown dwarf with 80 times the mass of Jupiter which is bound closely with an incredibly hot white dwarf star. Observations have shown the brown dwarf is tidally locked to the white dwarf, allowing the daytime surface temperatures on the brown dwarf to reach 8,000 Kelvin (7,700 Celsius, 14,000 Fahrenheit) — which is much hotter than the surface of the Sun, which is about 5,700 K (5,427 C, 9,800 F). The brown dwarf’s nightside, on the other hand, is about 6,000 degrees K cooler.

Last edited by Mars_B4_Moon (2023-08-17 11:08:33)

Mars_B4_Moon

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Posts: 9,776

Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

A New Simulation Reveals One Entire Stage of a Star's Life

https://www.universetoday.com/162819/a- … tars-life/

Mars_B4_Moon

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Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

Neptune’s Disappearing Clouds Linked to the Solar Cycle

https://spaceref.com/science-and-explor … lar-cycle/

Mars_B4_Moon

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Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

In the service of planetary science, astrophysics and heliophysics
https://www.spacedaily.com/reports/In_t … s_999.html
New Horizons is healthy, in active operations mode and speeding across the Kuiper Belt.

tahanson43206

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Registered: 2018-04-27

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Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

For Mars_B4_Moon re #140

Thanks for the link to the article by Alan Stern about the upcoming intense period of observations planned for New Horizons, ** and ** for plans to operate for an extended period as the spacecraft leaves the Solar System. 

(th)

Mars_B4_Moon

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Posts: 9,776

Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

Xihe 2 set to launch to Sun-Earth L5 point in 2026
https://twitter.com/CNSAWatcher/status/ … 8569482249

H-Alpha Solar Explorer satellite, Xihe is China's first space-based solar telescope
https://spaceflightnow.com/2021/10/18/c … servatory/

to be developed on Xihe Chinese Hα Solar Explorer, CHASE and Mars orbiter platforms
https://weibo.com/5027345285/4946185976547384

Last edited by Mars_B4_Moon (2023-09-15 13:37:06)

Mars_B4_Moon

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Registered: 2006-03-23

Posts: 9,776

Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

Mapping the Sun's Interaction with Mercury's Surface
https://www.spacedaily.com/reports/Mapp … e_999.html

Mars_B4_Moon

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Posts: 9,776

Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

Astronomers Find Stars Cast Away from Galactic Neighbors

https://skyandtelescope.org/astronomy-n … neighbors/

Mars_B4_Moon

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Posts: 9,776

Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

“Triple star” discovery could revolutionise understanding of stellar evolution

https://www.eurekalert.org/news-releases/1008391

SpaceNut

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Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

A storm is about to hit us.
NASA Warns Solar Storm May Hit Earth Tomorrow As Sunspots Increase Tenfold

Mars_B4_Moon

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Posts: 9,776

Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

SwRI's PUNCH Mission Set for 2025 Launch: A New Era in Solar Wind Study

https://www.spacedaily.com/reports/SwRI … y_999.html

Mars_B4_Moon

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Posts: 9,776

Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

Strong auroras likely as powerful solar flare eruption hurls possible 'cannibal CME' toward Earth

https://www.space.com/aurora-alert-sola … december-1

Mars_B4_Moon

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Posts: 9,776

Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

Powerful 'Cannibal' solar burst will hit Earth tonight. Widespread auroras predicted

https://www.space.com/cannibal-cme-sola … ng-auroras

There are many MP4 video files 
https://sdo.gsfc.nasa.gov/assets/img/da … 023/12/03/
I don't think I have ever seen anything like 20231203_1024_0211  dot mp4  or  20231203_1024_0131 . mp4 image/videos before
or https://sdo.gsfc.nasa.gov/assets/img/da … 4_0193.mp4

Mars_B4_Moon

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Registered: 2006-03-23

Posts: 9,776

Re: Heliopolis *2* - ...Sun, Solar Science Cont'd...

JWST Sets a New Record, Sees Newly Forming Stars in the Triangulum Galaxy

https://www.universetoday.com/164986/jw … ore-164986

Our Milky Way bristles with giant molecular clouds birthing stars. Based on what we see here, astronomers assume that the process of star creation also goes on similarly in other galaxies. It makes sense since their stars have to form somehow. Now, thanks to JWST, astronomers have spotted baby stellar objects in a galaxy 2.7 million light-years away. That’s millions of light-years more distant than any previous observations of newly forming stars have reached.

The targets of JWST’s observations are “young stellar objects” (YSOs) in the Triangulum Galaxy (M33). Astronomers used the telescope’s mid-infrared imager (MIRI) to study one section of one of M33’s spiral arms in the hunt for YSOs. They found 793 of these baby stars, hidden inside massive clouds of gas and dust. That’s an important discovery, signaling that the processes of star birth we know so well in our galaxy occur as we expect them to in others.

About Young Stellar Objects

To put this discovery into some kind of context, let’s take a look at young stellar objects in a bit more detail. Generally speaking, these are simply stars in the earliest phases of their evolution. Starbirth begins when materials in a giant molecular cloud start to “clump together” gravitationally. The densest part of the clump gets denser, temperatures rise, and eventually, it starts to glow. Young stellar objects can be protostars still sweeping up mass from their giant molecular clouds. They aren’t quite stars yet—that is, they haven’t ignited fusion in their cores. That won’t happen for maybe half a billion years (more or less, depending on mass).