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Thread: Space thingies unrelated to intarnet spaceships

  1. #1
    metacannibal's Avatar
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    Space thingies unrelated to intarnet spaceships

    Since alot of ppl like space themes, I figured why not open a "RL Space" thread.

    Since this often starts with a small telescope, here is what you can REALLY expect to see:

    http://www.backyardvoyager.com/eyepieceviews.html

    A few typical links:

    http://www.eso.org/public/images/archive/top100/

    http://apod.nasa.gov/apod/astropix.html




    Who else is interested in Astronomy and Astrophotography?
    Last edited by metacannibal; January 6 2014 at 10:44:32 AM.

  2. #2
    Donor Aea's Avatar
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    Not much to add on the topic, but I have to say that second link is a great source for amazing space backgrounds.

  3. #3
    metacannibal's Avatar
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    Quote Originally Posted by Aea View Post
    Not much to add on the topic, but I have to say that second link is a great source for amazing space backgrounds.
    http://www.eso.org/public/archives/i...0-original.zip is what you are looking for, the original 36GB set

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    metacannibal's Avatar
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    An X3 solar flare has erupted from the Sun just a few hours ago. Not sure if it was Earth directed. More info to come in from NASA Solar Dynamics. It's been a very active solar cycle in the past week.



    Solar Maximum seems to be reaching it's height of activity. It's predicted that the Sun's magnetic field will flip as Maximum reaches the middle of it's active cycle.
    I think it is only a matter of a few weeks until some random drama apocalyptic sect will spawn off these news.

  5. #5

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    Quote Originally Posted by metacannibal View Post
    Who else is interested in Astronomy?
    I'm interested in Astronomy as in "I like watching science shows about stars, planets, other celestial objects, how they interact" and so forth. I'm really fascinated by that stuff and deeply impressed of what our current scientists & technology is capable of detecting & determing. Unfortunately my own scientific knowledge is way too low to involve myself more actively otherwise.

  6. #6
    metacannibal's Avatar
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    Quote Originally Posted by Hel OWeen View Post
    I'm interested in Astronomy as in "I like watching science shows about stars, planets, other celestial objects, how they interact" and so forth. I'm really fascinated by that stuff and deeply impressed of what our current scientists & technology is capable of detecting & determing. Unfortunately my own scientific knowledge is way too low to involve myself more actively otherwise.
    http://www.skyinspector.co.uk/Planet...f%20144dpi.pdf

    Planetary focused, this may be an interesting overview, it also shows the crazy progress since the 16th century.

    On the science part, there have also been great achievements, you may want to watch this playlist:

    http://www.youtube.com/watch?v=wqjN-...30369DD56438FE

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    dpidcoe's Avatar
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    Quote Originally Posted by metacannibal View Post
    I am currenty running a 205mm 1200mm f6 Newton with a modded Webcam for planetary imaging.
    i heard you're ideas and their definately good

  8. #8
    THE PUNISHED
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    Quote Originally Posted by metacannibal View Post
    In wake of Comet ISON due to become a Sungrazer I wondered how many FHC are interested in things beyond earth.
    If you were not aware, ISON will almost crash in the sun in a few weeks and most likely create an effect so bright it will be visible in daylight.
    http://www.cometison2013.co.uk/perihelion-and-distance/

    I am currenty running a 205mm 1200mm f6 Newton with a modded Webcam for planetary imaging.


    Who else is interested in Astronomy and Astrophotography?

    A few links:

    http://www.eso.org/public/images/archive/top100/

    http://apod.nasa.gov/apod/astropix.html
    I have a (fairly powerful) telescope and in winter i love to star gaze. This year I hope to hook up a laptop to it and take digi pics.

  9. #9
    metacannibal's Avatar
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    @dpidcoe, a summary:

    Generally, one needs to decide WHAT he wants to do. Usually, the limits are following and you can pick two:

    - Cheap, Good, Pictures

    You can indeed get cheap and good, but you will be limited to visual observations. I would suggest that WHATEVER you do, start with that.
    You can also do Pictures RELATIVELY cheaply, but a) they will not be good and b) they will not be of anything "deep space", that is outside our solar system.

    The big Q on WHY this is the way is easily answered by the way our earth roates around itself. The rotational axis (tilted too) leads to rather significant movement of Planets (the fastest) but also the sky.
    Why is it not possible to take pictures will be the first thing you may ask yourself.
    Since "Deep Space" relies on long (dozens of minutes to hours) of exposure, just a SLIGHT movement off the scope will yield a blurry and smeared picture as the sky is moving. So how do you take long exposure pictures of the moving sky?
    Ze Germans invented the so called "German Equatorial Mount", a system that aligns the movement axis of the telescope not with the surface of the ground you stand on but the rotational axis of the planet. Since the speed of earths rotation is constant, we can have a motor compensate for that very precisely along the rotational axis, allowing for a telescope mount that "moves with the sky".
    This is the #1 cost driver in Astrophotography and the reason why that is not a topic for "beginners". http://starizona.com/acb/basics/equip_mounts_gem.aspx

    But! Not all things are lost. Visual Observations of Deep Skyp objects are "affordable" thanks to "Dobsons". Telescopes are like Engines, you can not replace displacement of an Engine with anything but more replacement, the same goes for Telescopes and their aperture.
    Dobson is a "cheap" mount that allows for MASSIVE aperture for cheap budgets.

    To Put things in perspective (not counting camera cost as it would be the same for both):

    An "ok" Newtonian Telescope with an "ok" TrackingMount (150mm Skywatcher Explorer and EQ5 SynScan Mount) will easily cost EUR 1.000 and take pretty bad Pictures and "only" show this Visually:




    http://www.teleskop-express.de/shop/...Telescope.html

    A 200mm Skywatcher Dobson will cost a mere 350 EUR and show you this, for 1/3rd of the price, with the only limitation that you can not take long exposure pictures. Notice how the deep space object benefits alot more from the aperture than the planet.




    http://www.teleskop-express.de/shop/...Dobsonian.html


    Now, if even the "typical beginner" 200mm Dobson is too much cost wise to start, no worries, you can easily start under 80 bucks. There is a pretty nice "cheap" dobson of the 76mm size available from Celestron, the "Firstscope". It is great if you want to play around, take first steps and have a good start. The only downside is that you WILL need to buy a good eyepice for it (25 EUR, but can be used for other telescopes).
    Of course, the pictures may not be hubble-Esque but Jupiter with moons and deep-sky objects are visible already:




    http://www.teleskop-express.de/shop/...Telescope.html

    I hope this gives a good context.

    And just for random hilarity, illustrating the price of a "upper midrange" astrophotography setup:

    4.290,00 EUR EQ8 Synscan Mount
    1.955,00 EUR 10" f/8 Ritchey-Chrétien Astrograph
    2.917,00 EUR Atik 4000 Large Format Cooled CCD Camera
    1.500 EUR Guider, Powerpack, Filters, random crap

    11k
    Last edited by metacannibal; November 14 2013 at 11:42:54 AM.

  10. #10
    Donor Rami's Avatar
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    I love the imagery but for some reason I've never gotten into the photography craze myself. I rock like a G10 4/3rds since it was an Xmas gift. My dad has been bitching about solar maximum as it royally screws with this HAM radio capabilities.

    For space kicks I'd recommend going to KSC. They always have NASA staff around. In august has a proper geek out with some of the former Atlantis dudes and a communications expert.


    Location: My Genolution 'Auroral' AU-79, inside a Macharial, some docking bay, Sujarento VIII - Moon 1 - Republic Security Services Assembly Plant, Sujarento (Naught point three), Isoma Constellation, The Citadel (Caldari State), New Eden, Eve Online, Tranquility, some servers in a datacenter, London, United Kingdom, Europe, Earth, Sol system, the Milky Way, Local Group, the Virgo Supercluster, the Universe, (potentially) the Multiverse

  11. #11
    metacannibal's Avatar
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    This was recently added to the ISON page.
    http://www.cometison2013.co.uk/interactive-model/

    Depending where you are, you should be able to see it visually already. Sadly overcast is preventing me from taking a look/picture.

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  13. #13
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    I missed perihelion by about an hour, but clouds meant I would not have seen it anyway.
    Last edited by Pacefalm; November 29 2013 at 11:02:38 AM.
    Quote Originally Posted by QuackBot View Post
    I'm doing my best. Well. Not really.

  14. #14
    metacannibal's Avatar
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    Here is ISON's solar pass in a raw SOHO feed.
    You can see the flare before getting very close and then the faint streak coming up behind the sun.

    http://sohodata.nascom.nasa.gov/cgi-...CO&Detector=C2

  15. #15
    dpidcoe's Avatar
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    It's been too cloudy here to see it
    i heard you're ideas and their definately good

  16. #16
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    Random Moonshot #1



    Random Moonshot #2
    Last edited by metacannibal; December 17 2013 at 11:38:27 AM.

  17. #17
    dpidcoe's Avatar
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    Did you take the moon pictures? It looks like they're composited together over several smaller shots judging by the edges, is there a technique to it? Software that makes it easy?
    i heard you're ideas and their definately good

  18. #18
    Ophichius's Avatar
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    Quote Originally Posted by dpidcoe View Post
    Did you take the moon pictures? It looks like they're composited together over several smaller shots judging by the edges, is there a technique to it? Software that makes it easy?
    You're looking for Photo Stitching Software.

    -O
    I thought what I'd do was, I'd pretend I was one of those Thukkers, that way I wouldn't have to have any goddamn stupid useless conversations with anybody.
    Failing the Voight-Kampff test, one tortoise at a time.

  19. #19
    metacannibal's Avatar
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    Quote Originally Posted by Ophichius View Post
    Quote Originally Posted by dpidcoe View Post
    Did you take the moon pictures? It looks like they're composited together over several smaller shots judging by the edges, is there a technique to it? Software that makes it easy?
    You're looking for Photo Stitching Software.

    -O
    dpidcoe: yes, but you do not take planetary pictures these days, you will usually take videos and have software use the thousands of frames to calculate the atmospheric intereference and calculate it out.
    You can see this video here showing the DRAMATIC effect this has, it shows the video and the final "image" http://www.youtube.com/watch?v=YNgmpeEjwCI

    Ophichius:
    In Astrophotography you have dozens of high performance open source and free programs, highly specialized.

    Examples are:
    Autostakkert2
    Registax

    More details:
    http://en.wikipedia.org/wiki/Lucky_imaging

  20. #20
    Ophichius's Avatar
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    Ah yeah, cheers. I was just answering in the really broad sense of how one would stitch images, but I'm glad someone with more knowledge was able to provide a more detailed response.

    -O
    I thought what I'd do was, I'd pretend I was one of those Thukkers, that way I wouldn't have to have any goddamn stupid useless conversations with anybody.
    Failing the Voight-Kampff test, one tortoise at a time.

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