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Our Beautiful Universe - Photos and Videos

  1. Mar 19, 2018 #301
  2. Apr 21, 2018 #302

    davenn

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    First shot of the moon using the Skywatcher 120mm x 1000mm fl Black Diamond refractor telescope and the ZWO ASI1600MM camera

    All my previous moon imaging was with a DSLR camera and telephoto lens

    180421 Moon Cap011sm.jpg

    Dave
     
  3. Apr 21, 2018 #303

    davenn

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    the imaging setup for the above photo ......

    IMG_1300sm.jpg
     
  4. Apr 24, 2018 #304

    Andy Resnick

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    Recent lunar pic:

    DSC_7149-1_zpsq9yji9dd.jpg

    Along the centerline is Rima Hyginus (with crater Hyginus), above the rima is Mare Vaporum (the lava flows have only a few hundred meters elevation variation), below the rima are the craters Hyginus A, Triesnecker, and at the base of the 600m high eastern ridge of Murchison, Chladni (which is relevant since we just covered sound in Physics I)
     
  5. Apr 24, 2018 #305
    HI recently I made some scope pictures of Arcturus and Spica.(its quite fuzzy due to long exp. time) but I think that colour difference is remarkable (Arcturus surf temp. cca 4300 K, Spica cca 24000 K).
     

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  6. Apr 26, 2018 #306

    DennisN

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    Tour of the Moon in 4K (NASA Goddard)
    Take a virtual tour of the Moon in all-new 4K resolution, thanks to data provided by NASA's Lunar Reconnaissance Orbiter spacecraft. As the visualization moves around the near side, far side, north and south poles, we highlight interesting features, sites, and information gathered on the lunar terrain.


     
  7. Apr 26, 2018 #307

    davenn

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    very cool :smile:
     
  8. May 2, 2018 #308

    Andy Resnick

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    The clouds parted for 2 days, and while the moon is annoyingly bright, I was able to get a nice start on M101. The first image includes some surrounding galaxies, while the second is a close-up. Images acquired with a 400/2.8 lens, 15 second exposures (yay, declination!), ISO 500.

    M101_DX_16bit-1.tif%20RGB-1_zpspyjvqu8l.jpg

    M101_3X_16bit-1.tif%20RGB-3_zpsmg1xzd57.jpg

    I can still do a good bit of denoising and improve the flat field correction, but what I really need is less moonlight.
     
  9. May 2, 2018 #309

    davenn

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    nice work, Andy :smile:
     
  10. May 9, 2018 #310

    Andy Resnick

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    Another good night of viewing- no moon this time. Up to about 2 hours total integration time.

    M101_3X_16bit_filtered-1_zps71wacrbc.jpg
     
  11. May 13, 2018 #311
    [​IMG] Hi I attach moon colour enhanced image (registax+photoshop). Are you experienced with this process ? O would like to know if is true that you can visualise true colour of object (for example rock of moon and so on) which can not see by naked eye...

    Have nice astro experienceso_O
     

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  12. May 14, 2018 #312

    davenn

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    awesome effort :smile:

    just remember tho, the moon isn't really that colourful :wink: .... it's basically all grey

    up this thread a few posts back.....
    Post #302 ... my moon pic and post #304, Andy's pic. show the natural colour of the moon

    So in summary ... great detail in your pic., just go easy on the colouring :smile:


    Dave
     
  13. May 15, 2018 #313
    Hi thank for your post. Ya I noticed as well that moon is basically grey (since some green and blue rare rock are present as I read). It is as I read quite lot instruction on web how to enhance image moon colour and just wandering if it is only " game" or has it some relevant (real) matter.
    You have absolutely beatiful and detailed images. -congratulation
     
  14. May 15, 2018 #314

    davenn

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    thankyou :smile:

    you didn't comment on what telescope, camera etc you used to take that image ?
     
  15. May 16, 2018 #315

    Andy Resnick

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    There is real science behind colorimetric imaging of the moon, primarily in connection with minerology:

    https://ac.els-cdn.com/001910356490...t=1526472151_debd8bcfa9b5c281b2e39e270b7ac68a
    http://adsabs.harvard.edu/abs/1996SoSyR..30..352O

    Enhancing the color (increasing the saturation) is a fairly standard approach:
    https://astrophotographylk.wordpress.com/colors-of-the-moon/

    The region around Aristarchus is especially colorful:
    http://bartoszwojczynski.com/picture-151124-aristarchus
     
  16. May 17, 2018 #316
    Hi thank you very much for answer and links- I am interested about this theme so I will study this. My picture was made by hyperion eyepiece 8 mm on Newton 100 x 600 mm and sony compact camera objective just attached through T-ring . But now I got Nikon DS 200 body with bajonet .. so I will hope that made some improvement.:wink:
     
  17. May 21, 2018 #317
  18. May 21, 2018 #318
    :rolleyes:Hi I attach my last attempt colour saturated moon image by photoshop- jpg format,( but when I saved as jpg from photoshop it lost almost 50% of saturation- -I do not why and original photoshop is too large-cca 120 MB!). If you could estimate if it could be real colour ...? :nb)
     

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  19. May 25, 2018 #319

    Andy Resnick

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    M13 is visible here this time of year:

    Hercules_3X_24small_zpsxvn1ajuo.jpg

    This was digitally zoomed to mimic a 2400mm focal length (stacking w/ 3X dithering), total integration time 24 minutes @ f/5.6. This cluster has long been difficult (for me) to obtain a decent image: @davenn checked through my work a while ago, and it really helped. Every year I learn improved ways to acquire, stack, denoise, and convert to a 8-bit/channel final image. It's also a good warm-up for imaging the dense starfields in Cygnus in another month or so.
     
  20. May 26, 2018 #320

    davenn

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    M13 doesn't get above the horizon for me in the southern hemisphere, instead we have the majestic Omega Centauri globular cluster

    This is the first deep space object I have imaged through the Skywatcher scope ( the same setup as in post #303 up this page)
    Skywatcher 120mm x 1000mm focal length, Black Diamond, refractor telescope and the ZWO ASI1600MM camera
    a 2 sec exposure @ F8.3

    180519 Omega Centauri Cap009sm.jpg


    Dave
     
  21. Jun 13, 2018 #321

    Andy Resnick

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    Now the Ring Nebula (M57) is viewable from my backyard; here's a full frame (800mm) image of the region, combining images taken this year and last year:

    ring_2h-1_zpsowqq76lb.jpg

    Note the flat-field correction gets worse at the periphery, where image fields don't overlap anymore. Even so, the correction is pretty good over the entire field. Here's a 1:1 crop of the nebula and surrounding region:

    ring_2h-2_zpsbfsqtiyz.jpg

    IC 1296 is (barely) visible. Now what I've learned imaging Hercules is paying off: here's a 3X version of the nebula, clearly showing the 14m white dwarf at the center:

    ring_3X_50m.tif%20RGB-1_zpsmcp9ljlj.jpg

    and a cluster nearly shows that my image can clearly distinguish stars 4.0 arcsec apart (the short vertical group, distance data from Aladin)

    ring_3X_50m.tif%20RGB-2_zpsyfmbdpmu.jpg

    4.0 arcsec corresponds to a diffraction-limited aperture of 3.1 cm (500 nm wavelength). If we let the 'limit' go down to 3 arcsec (since the stars are clearly separated), the aperture diameter is given as 4.2 cm. Since my lens has an aperture of 14 cm, the impact of poor seeing is quite obvious.
     
  22. Jun 13, 2018 #322

    davenn

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    great shots, Andy :smile:
     
  23. Jun 14, 2018 #323
    Hi, really great shots!
    I attach my attempt of Jupiter, but it is not satisfying.. First is made by compact Sony just pressed to hyperion ocular 8 mm (probably one moon is visible as well)
    and second is made by Nikon D 200 body attached by bayonet to hyperion (it is quite dissapointment- I set ISO to 1600 and exp. time to 1/4 sec.(shorter time show nothing on display) .. If somebody have some advice for improving of Jupiter image I will appreciate,,, o_O:wink:
     

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  24. Jun 22, 2018 at 9:36 AM #324

    berkeman

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