1. Final Announcement: We're Saying Goodbye to AstronomyConnect. Read Our Closing Notice.
Dismiss Notice
New Cookie Policy
On May 24, 2018, we published revised versions of our Terms and Rules and Cookie Policy. Your use of AstronomyConnect.com’s services is subject to these revised terms.

What Exactly Did I Capture Here?

Discussion in 'Astrophotography and Imaging' started by Brownie, Sep 6, 2015.

What Exactly Did I Capture Here?

Started by Brownie on Sep 6, 2015 at 12:26 PM

16 Replies 2352 Views 1 Likes

Reply to Thread Post New Thread
Tags:
  1. Brownie

    Brownie New Member

    Joined:
    Sep 6, 2015
    Posts:
    3
    Trophy Points:
    3
    Using a really cheap tripod, I got this picture (below). Was this just my tripod being bumped a bit?

    If it was that, wouldn't all of the stars be jittered around?


    Taken with a D800 camera. 50 mm lens.




    [​IMG]
     
    clintwhitman likes this.
  2. LewC

    LewC Well-Known Member

    Joined:
    Aug 13, 2015
    Posts:
    130
    Trophy Points:
    43
    Location:
    Smogville, USA
    Looks to me like threads or spiderwebs laying on your camera's CMOS sensor. Otherwise, a nice picture.
     
  3. Brownie

    Brownie New Member

    Joined:
    Sep 6, 2015
    Posts:
    3
    Trophy Points:
    3
    I took a series of pictures that night. Perfectly fine. Not the lens nor the censors.
     
  4. george

    george Developer

    Joined:
    Sep 10, 2014
    Posts:
    333
    Trophy Points:
    77
    Location:
    Los Angeles, CA
    If you zoom in I can see most of the other stars show movement. Not sure why that one particular object is so prominent though.
     
    Brownie likes this.
  5. clintwhitman

    clintwhitman Well-Known Member

    Joined:
    Aug 26, 2015
    Posts:
    148
    Trophy Points:
    28
    Location:
    Santa Clarita, CA
    Looks really weird, I vote you captured Tinkerbell from Peter pan, And then there is the hook shaped one below? Do you live around a swamp in the south? Fireflys!!
     
    StaringAtStars likes this.
  6. clintwhitman

    clintwhitman Well-Known Member

    Joined:
    Aug 26, 2015
    Posts:
    148
    Trophy Points:
    28
    Location:
    Santa Clarita, CA
    Post a full res photo! ???
     
  7. george

    george Developer

    Joined:
    Sep 10, 2014
    Posts:
    333
    Trophy Points:
    77
    Location:
    Los Angeles, CA
  8. Brownie

    Brownie New Member

    Joined:
    Sep 6, 2015
    Posts:
    3
    Trophy Points:
    3
  9. clintwhitman

    clintwhitman Well-Known Member

    Joined:
    Aug 26, 2015
    Posts:
    148
    Trophy Points:
    28
    Location:
    Santa Clarita, CA
    Thanks for the link George, I have never taken or seen an astro photo that has 3 different light tracks running in different directions to each other while the other stars are close to stationary.
     
  10. Turk

    Turk Well-Known Member

    Joined:
    Aug 30, 2015
    Posts:
    64
    Trophy Points:
    18
    Location:
    Canfield, OH
    How long was the exposure? If the shutter opened before the mount was finished moving you may have captured a bright star in the movement. After the mount stopped, it exposed the other stars normally. It looks like more of a bump while clicking the shutter open for the timed exposure. Same thing would have happened. No time for dimmer stars to record at that ISO.
     
    StaringAtStars likes this.
  11. Blueman

    Blueman Member

    Joined:
    Sep 8, 2015
    Posts:
    15
    Trophy Points:
    3
    Just a guess but it could be insects flying.
    Floyd
     
    mwayne likes this.
  12. LewC

    LewC Well-Known Member

    Joined:
    Aug 13, 2015
    Posts:
    130
    Trophy Points:
    43
    Location:
    Smogville, USA
    UFOs?
     
  13. AstroLife

    AstroLife Active Member

    Joined:
    Aug 7, 2015
    Posts:
    38
    Trophy Points:
    18
    Location:
    Orlando, FL
    I agree with Turk here. If you zoom into the hi-res image, you _will_ see the same squiggles on all the bright stars in the image immediately around the stars. So that rules out fireflies, UFOs, spiders, and the like. The fainter stars do not have these squiggles as the ISO/exposure was not long enough to record these. The 2-3 brightest stars in the image were the only ones bright enough to capture most of this "shake". It is also not a small bump to the tripod/camera given how long the bright trails are (several degrees if not tens of degrees).

    My guess - the camera/tripod actually fell or rotated or was inadvertently moved significantly at the start or end of the exposure. The long trails are similar, but not identical, which means that the camera also rotated during this move.

    Harry D.
     
    Auriga likes this.
  14. Datapanic

    Datapanic Member

    Joined:
    Sep 9, 2015
    Posts:
    17
    Trophy Points:
    3
    Location:
    Tucson, AZ
    Agree with Astrolife. And, it's one for the bit-bucket :)
     
  15. clintwhitman

    clintwhitman Well-Known Member

    Joined:
    Aug 26, 2015
    Posts:
    148
    Trophy Points:
    28
    Location:
    Santa Clarita, CA
    Makes sense. Darn G-11 or the series II cant replicate this I'm afraid. I also noticed that the star field looks like wallpaper.
     
  16. StaringAtStars

    StaringAtStars Administrator

    Joined:
    Jan 26, 2015
    Posts:
    104
    Trophy Points:
    28
    Location:
    Los Angeles, CA
    Maybe some dust particle rolling around during the long exposure? I've had similar things happen when I've taken photos at night, but the lines were not erratic in all different directions.
     
    clintwhitman likes this.
  17. CosmicMachinist

    CosmicMachinist Member

    Joined:
    Jun 3, 2016
    Posts:
    10
    Trophy Points:
    3
    Location:
    Ohio, USA
    Definitely a UFO. :rolleyes:
     

Share This Page