Log Book Entry No.59

Days, Calendar Created: 08 Dec 2014 18:54:23 Days, Calendar Last Revised: 09 Dec 2014 15:49:21 Person SimonWoeginger Text 8/12/2014 SW/LN Observations

IDEA! 8th December Observatins

Start time 18:00

Conditions: Varied from good and clear to a little hazy which had an effect on exposures.

Observations:

Deneb (alpha cyg):

Used for alignment and tracking purposes

Magnitude - 1.25

CCD cooler hadn't been running long so visible ring present.

M39 open cluster:

Magnitude - 4.60

Worked with Focuser Max to explore the effects of being out of focus. Varied focus by +-5000 of origional position to see effects of being too out of focus (stars take on donut like shape). Fine tuning steps of 500 were taken in and out of focus to produce a sharper image. Took multiple exposures (attatched to this post).

Images taken:

1 image with an exposure time of 1 second

1 image with an exposure time of 10 seconds

1 image deliberately out of focus with an exposure time of 10 seconds

10 images with an exposure time of 15 seconds

10 images with an exposure time of 25 seconds

Crab Nebula, M1:

Abberations due to dust particles on the telescope can be noticed in the images. They manifest as donut shapes with dark rings and brighter centres.Tracking errors in longer exposures noticable in some frames.

Images Taken:

1 image with an exposure time of 20 seconds

1 image with an exposure time of 60 seconds

5 images with an exposure time of 90 seconds

Orion Nebula:

1 im age with an exposure time of 5 seconds

1 image with an exposure time of 10 seconds

20 images with an exposure time of 1 second

10 images with an exposure time of 5 seconds

Pleiades, M45:

Visible with the naked eye.

Images Taken:

1 images with an exposure time of 15 seconds

5 images with an exposure time of 10 seconds

Jupiter:

Visible with the naked eye. It's moons were visible through the viewfinder and were imaged. Seperate images of jupiter itself and two visible moons were taken for possible compositie image construction. Jupiter was very bright in the nightsky.

Images Taken:

1 image with an exposure time of 0.1 second

20 images with an exposure time of 0.1 seconds of the moons


Back to: LogBookAstronomy

  • m39_15s_exposure:
    m39_15s_screenshot.PNG

  • Crab Nebula, 90 second exposure:
    crab_nebula_90s.png

  • Orion Nebula 5s Exposure:
    orion_nebula_5s.png

  • Pleiades 15s Exposure:
    pleiades_15s.png

  • Jupiter with moons, 0.1s Exposure:
    jupiter_01s.png
LogBookForm
Subject 8/12/2014 SW/LN Observations
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Topic attachments
ISorted ascending Attachment History Action Size Date Who Comment
PNGpng crab_nebula_90s.png r1 manage 219.3 K 09 Dec 2014 - 15:28 SimonWoeginger Crab Nebula, 90 second exposure
PNGpng jupiter_01s.png r1 manage 121.8 K 09 Dec 2014 - 15:42 SimonWoeginger Jupiter with moons, 0.1s Exposure
PNGpng m39_15s_screenshot.PNG r1 manage 228.7 K 08 Dec 2014 - 20:33 SimonWoeginger m39_15s_exposure
PNGpng orion_nebula_5s.png r1 manage 127.2 K 09 Dec 2014 - 15:37 SimonWoeginger Orion Nebula 5s Exposure
PNGpng pleiades_15s.png r1 manage 204.7 K 09 Dec 2014 - 15:39 SimonWoeginger Pleiades 15s Exposure
Compressed Zip archivezip 20141208_SW_LN.zip r1 manage 37399.6 K 08 Dec 2014 - 20:37 SimonWoeginger  
Compressed Zip archivezip all_others.zip r1 manage 17298.8 K 09 Dec 2014 - 13:48 LaurieNevay  
Compressed Zip archivezip crab_nebula.zip r1 manage 9478.8 K 09 Dec 2014 - 13:48 LaurieNevay  
Compressed Zip archivezip jupiters_moons.zip r1 manage 24982.5 K 09 Dec 2014 - 13:49 LaurieNevay  
Compressed Zip archivezip m39.zip r1 manage 31586.9 K 09 Dec 2014 - 13:49 LaurieNevay  
Compressed Zip archivezip orion_nebula.zip r1 manage 44005.8 K 09 Dec 2014 - 13:50 LaurieNevay  
Compressed Zip archivezip pleiades.zip r1 manage 7430.5 K 09 Dec 2014 - 13:50 LaurieNevay  
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Topic revision: r5 - 09 Dec 2014 - SimonWoeginger

 
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