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Other Things => Clans & Communities => dt => Topic started by: barman on April 26, 2016, 09:23 AM

Title: my astro photos
Post by: barman on April 26, 2016, 09:23 AM
Been doing a lot of astrophotography in the past year or so. I'm mostly into lunar stuff, since that's what my telescope is optimized for, but sometimes I take photos of other objects for a change. My pics are quite popular on the web, often getting tens to hundreds of thousands of views. dt members liked them a lot when I showed some in private forums a while ago, so check 'em out ;)
Click on any photo for larger version.

Full Moon. Taken with a set of special filters which make it possible to see the differences in chemical composition of the lunar soil. Brown areas are rich in iron, blue areas are rich in titanium.
(http://i.imgur.com/oRK2yYu.jpg) (http://i.imgur.com/B3M2c6Z.jpg)

Copernicus and surroundings. One of the most spectacular craters on the Moon, with a diameter of nearly 100 kilometers. This photo is pushing the limits of my telescope, you can see features as small as 500 meters across on the lunar surface.
(http://i.imgur.com/a1V2NUT.jpg) (http://i.imgur.com/OkefPRq.jpg)

Crescent Moon and Venus. At the time this photo was taken, the planet Venus was approximately 150 times further away from Earth than our satellite.
(http://i.imgur.com/X1BY1tP.jpg) (http://i.imgur.com/DI6fN3H.jpg)

Total lunar eclipse. This event happened on the night between 27th and 28th September last year and was visible in most of Europe and the Americas. The Moon changes color due to the scattered light in our atmosphere.
(http://i.imgur.com/t4NHkVd.jpg) (http://i.imgur.com/7MQHCib.jpg)

Messier 51. A relatively nearby galaxy (28 million light years away) with very prominent spiral arms.
(http://i.imgur.com/QpoongI.jpg) (http://i.imgur.com/OdIV1H9.jpg)

Star trails. This photo took six hours to create. Due to Earth's rotation, stars appear to move in circles. When the camera is pointed at a fixed point for a long time, it's possible to capture the motion of the objects in the sky. Taken in the Teide Observatory on Tenerife, Canary Islands.
(http://i.imgur.com/wMoZnMZ.jpg) (http://i.imgur.com/dKzw7zS.jpg)
Title: Re: my astro photos
Post by: ANO on April 26, 2016, 09:41 AM
nice stuff Barman!
Title: Re: my astro photos
Post by: Tomi on April 26, 2016, 09:46 AM
Awesome indeed :o  8)
Title: Re: my astro photos
Post by: MarianRV on April 26, 2016, 10:18 AM
Wow, very nice photos! :o
Title: Re: my astro photos
Post by: Kaleu on April 26, 2016, 04:29 PM
Damn this made my day, I wish I had your equipment. Post more  ;D
Title: Re: my astro photos
Post by: Sensei on April 26, 2016, 04:48 PM
I'm stealing "Crescent Moon and Venus" to use as a background. Ty. Great stuff.
Title: Re: my astro photos
Post by: barman on April 28, 2016, 07:18 AM
Thanks guys! More photos 8)

The Moon and the International Space Station. ISS is the largest man-made object ever put in space, with a size of 100x100 meters. It orbits the Earth at a speed of 27600 km/h. At the time this video was taken, it was about 650 kilometers away from me. Recorded at 120 fps, played back at 0.25x speed.


Crescent Moon. A color-enhanced version, similar to the first photo from the previous post.
(http://i.imgur.com/zKKe5Ya.jpg) (http://i.imgur.com/KSwDu2V.jpg)

Daytime Moon. Apart from the Sun, the Moon is the only astronomical object bright enough to be easily seen during the day.
(http://i.imgur.com/cjkpKrO.jpg) (http://i.imgur.com/wUaG2bJ.jpg)

The Sun. Our star is so bright that it literally burns anything you focus its light on within seconds. In order to take a photo of the Sun, it's required to use a special filter which reduces the light intensity by a factor of a few thousand.
(http://i.imgur.com/tbQrmiu.jpg) (http://i.imgur.com/cLfSnIh.jpg)

NGC 4565. Like the one from the previous post, this is a spiral galaxy. The difference is that we can observe it from the side. As you can see, spiral galaxies are as flat as pancakes.
(http://i.imgur.com/Hnkq8J9.jpg) (http://i.imgur.com/4vnvNAC.jpg)

Star trails. Yet another photo taken during my stay at Teide Observatory last year.
(http://i.imgur.com/3Kru1Bp.jpg) (http://i.imgur.com/31EfRrP.jpg)
Title: Re: my astro photos
Post by: Triad on April 28, 2016, 09:38 AM
Really nice photos. :)
Title: Re: my astro photos
Post by: AduN on April 28, 2016, 01:18 PM
wow
Title: Re: my astro photos
Post by: barman on May 01, 2016, 03:34 PM
This one's from yesterday :)
International Space Station passing in front of the Sun, recorded at 570 FPS, played back at 60 FPS (9.5 times slower)



Real time version: https://gfycat.com/ScaryBrightFruitbat
Title: Re: my astro photos
Post by: Dulek on May 01, 2016, 03:52 PM
Holy shit, these are beautiful! How much afterwork, tooling does it take from raw picture to this to happen?
Title: Re: my astro photos
Post by: Kaleu on May 02, 2016, 03:31 AM
My favorite topic   ;D
Title: Re: my astro photos
Post by: Husk on May 02, 2016, 03:35 PM
sweet =P
Title: Re: my astro photos
Post by: barman on May 02, 2016, 05:25 PM
Holy shit, these are beautiful! How much afterwork, tooling does it take from raw picture to this to happen?
Thanks :-)
It depends on the photograph, but most of the time, processing takes a couple of hours on a high end PC and involves a substantial amount of science and data analysis.
Title: Re: my astro photos
Post by: nino on May 02, 2016, 07:05 PM
NASA SUCKS!!!

BARMAN PWN
Title: Re: my astro photos
Post by: barman on May 16, 2016, 07:05 PM
7 days ago, the planet Mercury passed in front of the Sun one week ago for the first time since 2006. Here's my photo of the event 8)
(http://i.imgur.com/Zciets8.jpg) (http://i.imgur.com/aeolJSU.jpg)

Equipment pic:
(http://i.imgur.com/OIR7EO0.jpg) (http://i.imgur.com/WphLR6X.jpg)
Title: Re: my astro photos
Post by: theredi on May 16, 2016, 08:17 PM
:OOO

Title: Re: my astro photos
Post by: Chelsea on May 16, 2016, 08:33 PM
(http://i.imgur.com/OIR7EO0.jpg) (http://i.imgur.com/WphLR6X.jpg)

Why did you shot down plane over Ukraine? ( Malaysia airlines flight MH17)
damn terrorist  ;D
Title: Re: my astro photos
Post by: Kaleu on May 21, 2016, 05:06 PM
Are you going to take pics from Mars today?  ;D I hope so.
Title: Re: my astro photos
Post by: barman on May 21, 2016, 07:53 PM
Are you going to take pics from Mars today?  ;D I hope so.
Took one a couple of days ago, here it is:
(http://i.imgur.com/PBYSNxT.jpg)

The problem with Mars is that it shines in the southern part of the sky this year, and I'm placed quite far in the northern hemisphere (my geographic latitude is 51 degrees). Which means it doesn't rise too high in the sky in Poland, and since the atmosphere near the horizon is always turbulent, the image is considerably blurry. Need to wait until 2020 for favorable observational conditions of Mars from my location ;)
Title: Re: my astro photos
Post by: Kaleu on May 22, 2016, 02:26 PM
Still good to see ty  ;D
Title: Re: my astro photos
Post by: Anubis on May 23, 2016, 07:38 PM
I wonder, barman, since you watch night sky so often, can you share some UFO stories with us? Or has everything been quite. Back when I was younger I spent a lot of time outside watching the sky and spotting unusual lights/movements has always been interesting to me.
Title: Re: my astro photos
Post by: nino on May 23, 2016, 08:08 PM
nice ae barman, just curious, how much did you spend on that? seems very expensive stuff.

btw did you see god ae? huhauh
Title: Re: my astro photos
Post by: XanKriegor on May 24, 2016, 02:13 AM

btw did you see god ae? huhauh

Wahahahaha)))))
Title: Re: my astro photos
Post by: barman on May 24, 2016, 08:02 AM
nice ae barman, just curious, how much did you spend on that? seems very expensive stuff.

btw did you see god ae? huhauh
About $3000. Brand new is more like $4000, but I bought some of the parts used. I'm currently saving for a full blown pro camera which costs more than my entire current setup combined :-X

Never seen any aliens, gods or UFOs. ;) People claiming they saw this sort of stuff are simply misidentifying natural or man-made lights due to the lack of experience. I once saw a slowly moving light and was quite confused about what it was, since the flashing pattern was irregular and not characteristic for an airplane. Later I found that it was just a damaged satellite in orbit reflecting sunlight into the surface of Earth with its solar panels, something like this:
Title: Re: my astro photos
Post by: Chelsea on May 28, 2016, 10:51 AM
gravity  :-\

(http://img2.demotywatoryfb.pl//uploads/201605/1464253503_by_RAFALOSKAR_inner_noframe.gif)
Title: Re: my astro photos
Post by: barman on May 28, 2016, 11:51 AM
This gif is zero percent scence and 100 percent bullshit. First of all, rockets can produce continuous thrust, so you can leave any object at any speed as long as the net force points up. Second, even without continuous thrust, you don't need these speeds if staying in orbit is all you want. Low Earth orbit satellites move at about 8 km/s (17900 mph). 25031 mph is what you need to get out of our planet's gravitational well altogether.
And these rockets don't even represent the escape velocities written below the planets. Earth's is over twice as large as that of Mars, yet the rockets seem to be moving at roughly the same speed :-X
Title: Re: my astro photos
Post by: Chelsea on May 28, 2016, 11:55 AM
haha :D

dunno why, but I knew, that gif is shit :D (like everything at demotywatory.pl) :D but wanted to know your opinion ;)
Title: Re: my astro photos
Post by: XanKriegor on May 28, 2016, 12:38 PM
Quote
Low Earth orbit satellites move at about 8 km/s (17900 mph).

Wait, its an orbiting speed, not speed "fromwards" Earth.