Thursday, July 31

Sky and the space beyond

Many bloggers around the world are sitting on earth searching for motives in the sky to present on the web every Friday.
Up in the clouds there may also be someone with the face turned to the space and the universe beyond.If the eyes are "good enough" may be the size of things out there in our Solar System can be watched like this:
Adding some of the other planets in our solar system, we can see that the earth is quite small.
and the size of the Sun compared to the Planets shows the huge space out there.
However, the size of other things (Stars) in space outside our Solar System must be added to understand how small we rally are in the macro perspective.
Our Tellus is invisible in this scale.
Sirius is the brightest star in the night sky with a visual apparent magnitude of −1.47. At a distance of 2.6 parsecs (8.6 light-years), the Sirius system is one of our near neighbors.
Pollux also cataloged as Beta Geminorum (β Gem / β Geminorum), is an orange giant star approximately 34 light-years away in the constellation of Gemini (the Twins). Pollux is the brightest star in the constellation (brighter than Castor (Alpha Geminorum). As of 2006, Pollux was confirmed to have an extrasolar planet orbiting it.
Arcturus is at least 110 times more luminous than the Sun, but this underestimates its strength as much of the "light" it gives off is in the infrared; total power output is about 180 times that of the Sun. Arcturus is 36.7 light years (11.3 parsecs) from Earth, relatively close in astronomical terms.
Rigel, Aldebaran, and Betelgeuse can be found in the constellation Orion . The Hunter´s stars are found on the celestial equator and are visible throughout the world. Its three prominent "belt" stars - three stars of medium brightness in the mid-section of this constellation - make this constellation easy to spot and globally recognized.
Antares is a red supergiant star in the Milky Way galaxy with a diameter of approximately 700 times that of the sun. Antares is approximately 600 light years from our solar system. Its visual luminosity is about 10,000 times that of the Sun, but because the star radiates a considerable part of its energy in the infrared part of the spectrum, the bolometric luminosity equals roughly 65,000 times that of the Sun. The mass of the star is calculated to be 15 to 18 solar masses.

If we believe in climate changes (and that is not difficult to do), do we really believe that the human influence are the only cause? The size and powers from the things in the sky may be well in-calculated.
Happy watching tonight.


RuneE said...

No serious scientists think that the changes in climate are only due to human activities. There are at least three, cyclic phenomena that can be traced backwards in time to have caused such changes. However, what is new, are the effects of the human activities on top of all the others.

It is a pity that some politicians refuses to acknowledge this so that they can continue to drive their gas-guzzling SUVs when they go shopping.

Denise said...

One of the subjects I taught was the Development of Astronomy. I remember it vividly even though it was 30 years ago. I was training at college and was doing a teaching practice. I really enjoyed the research and lessons I planned. My Dad made me a robot which contained a tape recorder. The lessons were always started with some music to add to the atmosphere.

juliana rw said...

beautiful sky

Mine in here Thanks

Picturing of Life said...

great post with lots of info

Hope you can Visit me also Thanks

fishing guy said...

Arne: A woderful Sky photo to start and a great lesson to finish. Thanks for an interesting SWF.

Dancin' Fool said...

A most excellent post! Thank you for the brilliant information!

imac said...

Most enlightning post, thanks.
Certainly puts Earth in its state of size.

Julie said...

The models are very interesting, Aarne. I like also your towering clouds. I think that climate-change is being used by politicians to scare us and manipulate us. I am not sure that it is within the power of the people of the world to stop it now that it has got momentum. there is not the will power.

Pernille's ting og tang said...

Beautiful Swf-shot and I like it very much! And very interesting post. I think I have to look one more time:)

Marie said...

Takk for skuletimen :)
Perfekt for sky watch!
Verkeleg interessant!

Your EG Tour Guide said...

This is such a serious post! ;-) No, I don't think humans are TOTALLY to blame, but I do believe we ARE making things worse.

Old Wom Tigley said...

Excellent Sky Watch post
So much of interest here Arne, I've mark down to revisit and read it all again.. ha! and proberly again.


Pat - An Arkansas Stamper said...

A most interesting narrative and comparative models of the "stars." We (Earth) are smaller than a dust mote in the grand scheme of things! I very much enjoyed your Sky Watch post.

kjpweb said...

Very good blog you have going here, Arne. I think I will have to put it on my daily menu! Happy skywatching!
Cheers, Klaus

Stine ☆ said...

Dette var masse spennende å lese. Flott bilde!
Ha en fin helg!

Berit said...

Interesant og flott, som alltid!
Ha en fin helg.

Paulie said...

Loved your cloud photo AND the info on the solar system was beneficial too. My hand is still sore, knees even worse now but I am able to read some blogs and hope to be back blogging by Sunday or Monday.

Paulie said...

sigh I forgot what I came for -- heard about a mountain or something collapsing in Norway today -- hope it wasn't near you.

Kahshe Cottager said...

I really like cloud pictures and your info about the solar system. I hope we have a clear night tonight so I can go have a look and see what I can see!

Have a wonderful weekend of beautiful skies!
My Sky Watch Photos Here and Here

shutterhappyjenn said...

Great picture and great explanation!

Hope you can hop by my SWF photos in these blogs:
Jenn Was Here
Shutter Happenings

Thanks! Happy Friday!

Raven said...

Wonderful skywatch post! Your clouds are beautiful and the other material really does put our place in the Universe into some perspective.


Very interesting comparison!

The Earth is almost nothing!!!

Beautiful post!

Have a happy weekend!


Torsdag said...

wonderful documentation ****

Hallo from Germany

esnorway said...

fine bilder og et fint tema

Brenda said...

Beautiful fluffy clouds and a very interesting post!

Kelly said...

This is so interesting, I'm going to tell people about it! Such an informative post! Great job!

Petunia said...

Man trenger ikke skole - bare gode blogginnlegg:)

Louis la Vache said...

Very informative and interesting post!

"Louis" has been buried deeper than his cowbell in work - and will be for the next month or so. He hasn't paused to say 'hello' when he has stopped by.

Catherine said...

Great sky~watch post..beautiful sky capture, and great info you shared!
Happy sky~watching Arne!

Christy said...

Very nice photo. I am just now getting around. For some reason my computer would not let me open up the links from the skywatch page on Friday.

Really puts things into perspective when you look at the grand scale of things.

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