Astronomy Field Trip Tenerife 2013


 Some photos...

Team 'Bermuda'
Team 'Tarot'
Team 'Jackals'
Analysing data
Analysing data

Group photo and Milky Way

Group photo and Milky Way

Group photo and Milky Way

In awe of the Universe

Group photo and observatory



 Some panoramas...




View from Teide Observatory



 Some astrophotography...




Region around Antares
Single 4-minute exposure
Objects visible in image:

Antares (red star, with nebulosity, below centre)
Rho Ophiucus (blue star, with nebulosity, above centre)
M4 globular cluster (right of Antares)

Dark nebulae stretching off to top left


Milky Way through Scutum and Sagittarius
Single 4-minute exposure
Objects visible in image:

M16 Eagle Nebula (centre top)
M17 Swan Nebula (below M16)
Sagittarius Star Field (centre)
M20 Trifid Nebula (right of centre bottom)



Milky Way in Sagittarius and Scorpius
Mosaic of four 4-minute exposures

Objects visible in image:

M20 Trifid Nebula (top left)
M8 Lagoon Nebula (below M20)
Antares (red star, with nebulosity, far right)
Rho Ophiucus (blue star, with nebulosity, above Antares)
M4 globular cluster (right of Antares)

Click here for a pdf of the image
labelled with Messier objects


Astrophotography images taken with Nikon D7100 DSLR + 85mm f/1.8 lens
Processed from JPEGs with no darks and no flats

( Stacking multiple RAW images, subtracting darks )
(  and dividing by flats should improve the quality.  )
( I will get around to doing this -- watch this page for updates )




Tracking off (left) and on (right)
Each is a 4-minute exposure

Tracking the stars

The image on the left demonstrates the need for the camera to track the apparent movement of the stars during long exposure astrophotography. Even with a wide-angle lens (here 35mm) the stars will produce short trails after only a few seconds.

I have designed and built my own star tracker (see K2 star tracker for details) and have also used a commercial product, the iOptron SkyTracker.


Steve Barrett    June 2013

S.D.Barrett@liv.ac.uk

All images Steve Barrett 2013

( except those marked with * )

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