*** The Official Astronomy & Universe Thread ***

Man of Honour
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Read that Voyager 1 is on the verge of leaving the solar system with a velocity of about 18km/s. It is the fastest object made by humanity, is about 18 billion km away from the Sun. It is 36 years into its journey and will take about 17000 years to travel 1 light year which is still around 3 light years from our nearest neighbour in the Centauri system.

It's mind blowing how vast space is.
 
Man of Honour
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Read that Voyager 1 is on the verge of leaving the solar system with a velocity of about 18km/s. It is the fastest object made by humanity, is about 18 billion km away from the Sun. It is 36 years into its journey and will take about 17000 years to travel 1 light year which is still around 3 light years from our nearest neighbour in the Centauri system.

It's mind blowing how vast space is.

The Voyager journeys are mind blowing. An update from Nasa on the mission:

http://voyager.jpl.nasa.gov/news/voyager_final_frontier.html
 
Soldato
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Read that Voyager 1 is on the verge of leaving the solar system with a velocity of about 18km/s. It is the fastest object made by humanity, is about 18 billion km away from the Sun. It is 36 years into its journey and will take about 17000 years to travel 1 light year which is still around 3 light years from our nearest neighbour in the Centauri system.

It's mind blowing how vast space is.

That is interesting, 18km/sec, light speed 300000km/sec.
The difference is staggering.
 
Soldato
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Does that Lazy Susan replace the one that comes with the dob, is it that much better for panning.:)

The dob comes with a bolt through the middle of the base, and 3 small teflon pads stapled on around the outside of the base. They're decent enough, but a lot of people want control over the movement and want it super smooth, which is what a lazy susan does :)
 

mrk

mrk

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Some space things I've seen posted on other boards :)


- "Earth is at constant 1,675 km/h spin around its axis, which is as fast as F-15 Eagle jet fighter rushing to intercept enemy aircraft or more than 4 times the maximum speed of F1 racing car."

- "8 minutes and 19 seconds is the time it takes for light emitted by the Sun to voyage 150 million kilometers through cosmic ocean to reach Earth.
Given that speed of light is 300,000 km/s, it takes 2 years for light to get across the domain of our Solar System."

- "Our Sun is one out of 200-400 billion stars in Milky Way galaxy.
To get across our galaxy it would take us 100,000 to 120,000 years, given that our spacecraft would be able to travel as fast as light."

rXsd3tH.jpg

- "In this journey we would visit 200 to 400 billion planets with 10 billion of them being lodged in the habitable zone just as our home planet Earth."

IeNBfl1.jpg

- "Our Sun carrying Earth and the rest of the planets, orbits the super massive black hole in the center of Milky Way at the speed of 220 km/s, completing full revolution every 225-250 million years. Therefore since its birth 4.57 billion years ago Sun has completed 20 to 25 laps around the orbit of our galactic center."

r0TLYoA.jpg

- "Milky Way is 1 out of 54 galaxies making up Local Galactic Group with its gravitational center resting somewhere in between Milky Way and Andromeda Galaxy. The mutual pull of the two giants will force the inevitable collision in about 4 billion years from now."

- "The Local Galactic Group has a mind boggling 10 million light years diameter and estimated velocity reaching 69 km/s."
dmWZdyZ.png

- " Local Group itself is part of Virgo Supercluster containing around 100 galactic groups and clusters in its range. It is approximately 7000 times larger than Local Group and about 100 billion times that of Milky Way."
QKzVb18.png

- " Superclusters can further bound into thread-like complexes to create largest known cosmic structures called Galaxy Walls. Sloan Great Wall is the largest of these gigantic cosmic wonders and has imposing domain stretching 1.37 billion light years across. It is situated roughly 1 billion light years away from the Blue Planet we all call home."

- " It is little known about the far reaches of the universe, however it is known that it can be observed 46 billion light years to any direction and harbor roughly 80 billion galaxies."
SLhffUp.jpg

The Sun and Earth side by side:
dXG2UUD.jpg

String Theory:
0kbKzEM.gif

The fate of the Universe:
Axokd4x.jpg

If ET is watching our broadcasts:
CS3BsQw.png

Way too much to post and take in for one post so those will have to do for now :p
 
Soldato
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A few of those things I've seen before, but I haven't seen the string theory infographic yet which seems useful for beginners looking it up! Also haven't seen the TV one, that's pretty cool :D

Thanks
 
Soldato
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TAL 2x barlow arrived today :D

Looking clear tonight too, might go out for some Messier hunting, may also look for the Lagoon nebula as it's something I have been waiting to see
 
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