Some photos

Discussion in 'Astronomy, Exobiology, & Cosmology' started by Xelasnave.1947, Sep 23, 2019.

  1. Xelasnave.1947 Valued Senior Member

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    M31, M16 and M33.
    Alex
     
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  3. Xelasnave.1947 Valued Senior Member

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    For anyone wishing to take a photo and has a DSLR and a tripod ...point the camera at the Milky Way when in a dark location..set the camera to manual and say between 2 and 5 second exposure.
    Take say 50 to 100 shots.
    Download a free program called "Deep Sky Stacker" load all All images as "light" frames, check all then register...the program will stack all the images so you get a long exposure.
    Play with it in Photoshop and be amazed.
    Alex
     
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  5. Xelasnave.1947 Valued Senior Member

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    For Moon the stacking program to get..free...is Registax.
    Take say 20 or more and stack them.
    Alex
     
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  7. exchemist Valued Senior Member

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    What a lovely picture: the classic galaxy shape we all have in mind, I suppose. Though I gather there are other shapes that are at least as common. Isn't there a type that is shaped like a rugby ball? Do you have any pictures of those?
     
  8. Seattle Valued Senior Member

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    I was referring to just the first picture. Aren't M31, M32 and M110 all visible in the Andromeda Galaxy picture?
     
  9. Xelasnave.1947 Valued Senior Member

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    No. I hate rugby and refuse to take any photos that give rugby a reason to exist.
    I am just starting..billions to go thru yet.
    Alex
     
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  10. Xelasnave.1947 Valued Senior Member

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    I don't know. Perhaps you can show us...
    I would be happy to bag more than one in a capture. For me they are just pretty pictures...no science..just pretty pictures.
    I hope I don't offend the presumably countless civilizations in my photos.

    Alex
     
  11. Xelasnave.1947 Valued Senior Member

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    I think what astronomy does for me is to confirm the stupidity of religion. One gets to get some idea of just how big it really is and then to wonder if the proposition that it was all created for us is a reasonable view ...well I feel to think such is clearly stupid and arrogant... But these poor simple folk who believe in a creator are simply unaware on the magnitude of the universe..I mean I live with trying to comprehend the huge scale and even though I know the numbers just don't have a real idea...but god believers just have no idea .they can not compute...poor fools they confine themselves to the ancient myths that are just so wrong they can not even be called nonsense.
    Yet look at the political structures build on such ignorance.
    And our best scientific model of cosmology happily leaves room for a point of creation...sure...humans need something like that so science produces a happy, for the thinkers, a start, without a start, of our universe. Is it not obvious that science has been led to find creation...Oh the Ibig bang only deals with the evolution of the universe ..we don't know what happened a milli second earlier ..what a cop out..what an opportunity for god bothers to say..yes god..science backs us up... honestly I don't know how science can be so misled...well I do actually...but to think our science is designed to reach a bull shit conclusion...how can the universe grow from a cosmic egg presented by a priest...anyways it's about control, being the interlectual top dog...truth is irrelevant...fit all we observe into a volume of a atom..sure..we have the maths...BS...there are thinkers and followers who have no capacity to question... anyways I will bet my private parts that there is no way all that is out there will fit into a shoe box...looking at it tells me the big bang creation is for religious folk and not for truth or reality.
    Cosmology is an extention of religion. The universe can only be eternal and as such needs no point of creation.
    Look who endorse s big bang...the church and Muslims...what a transparent pile of crap....look, observe and think.
    Alex
     
  12. Seattle Valued Senior Member

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    I think M110 is the galaxy in the upper left, Andromeda is M31 and I think the bright, round thing in the lower right is M32.

    That's a very nice picture.
     
  13. Xelasnave.1947 Valued Senior Member

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    Don't post when you have been drinking.
    Half a bottle of whiskey...I could not stand my legs and whiskey gives so relief and gets me to sleep but clearly gets me cranky.
    I withdraw my bet.
    Sorry for the rant it was brought on by a brush with some Christians.
    Alex
     
  14. Xelasnave.1947 Valued Senior Member

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    Thanks..I should have known. I was thinking you were talking about all three images.
    Alex
     
  15. Xelasnave.1947 Valued Senior Member

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    Here is one taken with just a DSLR a Nikon D5500 with a cheap 70 to 200 mm lens ..I can't recall but probably around 120 mm focal length..it was a cheap lens at about $200. The colour may be a little off but I hope this may encourage someone to have a go..this was with the camera on a u guided tracking mount but I reckon you could get a similar result with a static tripod..you just take multiple short exposures so you don't have the stars trailing and stack them in Deep Sky Stacked which I have mentioned before..a free down load. The main objects here are the Lagoon Nebula and Trifid nebula
    Alex

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  16. Write4U Valued Senior Member

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    Wonderful stuff Alex. Keep 'em coming........

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  17. Xelasnave.1947 Valued Senior Member

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    Thank you. Lots of stars eh. Just a small region of our Milky Way.
    Alex
     
  18. Xelasnave.1947 Valued Senior Member

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    I had a fall getting around in the dark an strained my ankle and managed to take this..one hour is just the luminance channel as I could not really move around ..changing filters, done via the lap top but I had to get up to get to it then refocus ..a long proceedure of about 15 minutes...so it's not flash but this is the first deep sky attempt with the new (second hand) 115 mm refractor. Only did a ruff process, startools not photo shop, just to get an idea how it goes..there is a problem..those two blobs..dust on something in the optical path which I will track down..this is another M31 but at a longer focal length..the 80 mm gets it all in..you really need a mosaic using this scope on that object.
    Alex

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  19. Xelasnave.1947 Valued Senior Member

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    Mmm lost so much in the resize.
    Alex
     
  20. Xelasnave.1947 Valued Senior Member

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    And here is my really first deep sky effort with the new (second hand but actually better than new) scope..a 115 mm objective triplet refractor, and heck I can't remember the focal length with or without the field flatener/reducer...but probably 550mm...this image was made up with data gathered via the red, blue, green, luminance and hydrogen Alfa filters ..each giving approximately 35 minutes of exposure ..the exposures were 60 seconds each...about 3 hours here after throwing out unacceptable captures...maybe 3.5 but I wasn't counting...a really this was from two nights... The mount was tracking but unguided. With this image I included 20 dark frames in each group stacked...
    Dark frames are images taken with the dust cap on the scope for the same time as your image at the same gain (in these hideously high at 300 but I was trying to get done in one night something that should be spread over three or four nights...) Gain is like ISO on your DSLR camera.
    The dark frames pick up any "hot" pixels and the stacking software removes them when staking. One should use light frames which enable the software to remove and blemishes in the optical path like dust on the sensor ...well anywhere...you cover the objective with a white t shirt at the simplest approach and take photos that will show only the blemishes so the software can remove them. I need to do this (and many other things like lower gain, auto guiding the mount, longer individual exposures and indeed longer exposure times over all, more data so as to savagely cull I inferior captures.

    The object is M33 which I did and posted earlier but that one was with the 89mm refractor..

    I should add details about M33 but really just google it if you want to know more about it...
    I can't tell but this may not be too flash as I am using am image I put on my phone..if it's crook I will post another when my lappy is running...
    Alex

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  21. Xelasnave.1947 Valued Senior Member

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    I managed some colour data for M31 to add to the image above.
    I was heavy handed with the red channel ..it was my best dat but trying to use it moved what should be blue over to purple...anyways here it is..this is a large object and next year I will use the 115mm scope but take captures either side and do a mosaic.
    alex

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  22. Write4U Valued Senior Member

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    Is it possible to do a universal panorama? That would be awesome.

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    On second thought , I'm sure time lapse would be an issue......

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    Last edited: Oct 30, 2019
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  23. Seattle Valued Senior Member

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    You could do a low magnification panorama of the night sky but the interesting pictures are those "close ups" of galaxies, nebulas, etc. I don't see how you could effectively do a panorama of those.
     
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