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  1. #1
    Donal's Avatar
    Donal Guest

    Default Images from Tenerife



    Hello all,

    Last month I spent 9 nights imaging from the Paradour
    on Mount Teide in Tenerife. At 7000 ft altitude,
    the site was above the clouds that shrouded large
    parts of the island. I went in company with another
    member of Farnham AS and we both gathered about 40
    hours of data.

    The images can be seen here:-
    <http://www.astroimaging.org.uk/tenerife_2008/images_index.htm>

    and a report here:
    <http://www.astroimaging.org.uk/tenerife_2008/tenerife_2008_index.htm>

    If the above links haven't come out properly
    then just go to:-
    http://www.astroimaging.org.uk



    Donal
    --


  2. #2
    Stephen Wolstenholme's Avatar
    Stephen Wolstenholme Guest

    Default Images from Tenerife

    On Thu, 07 Aug 2008 12:51:42 +0100, Donal <donal@lanospamde.com>
    wrote:


    Those are excellent images. I have not had time to read the report
    yet.

    Steve

    --
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  3. #3
    Andy G's Avatar
    Andy G Guest

    Default Images from Tenerife

    It's a great place, we had a great time last time out and even got to see
    the top 3 stars in the Southern Cross from the Observatories site. Hope to
    be out there again in March with Rod and Dave

    Andy

    Mr Andrew R Green BSc(Hons) FBIS, FRAS





    "Stephen Wolstenholme" <steve@tropheus.demon.co.uk> wrote in message
    news:2gql945lq8ag8k182irgu8bejdj1svk9b0@4ax.com...



  4. #4
    Donal's Avatar
    Donal Guest

    Default Images from Tenerife

    Stephen Wolstenholme wrote:

    Thank you very much, Steve. There are a few more images to come over the
    next week or so. Processing seems to take more time than
    was spent taking the images.



    Donal
    --


  5. #5
    Bob Tubbs's Avatar
    Bob Tubbs Guest

    Default Images from Tenerife

    Hi,

    Yes -- the conditions in the Canary Islands are arguably the best in the
    world during June and July -- although during the rest of the year a few
    other observatory sites are better (notably Mauna Kea Hawaii).

    Quoting from "Night-time image quality at Roque de LOS Muchachos
    Observatory", A & A Supplement series, Vol. 125, October 1997, 183-193:

    "During the summer, 50% of the time seeing is better than 0.54", a
    value which drops to 0.46" during June, with a narrow distribution
    (rms = 0.17"). These figures place the ORM among, or better than, the
    best astronomical sites...)"
    -- from
    http://ukads.nottingham.ac.uk/cgi-bi...bibcode=1997A%
    26AS..125..183M&db_key=AST


    For this reason we did all our Lucky Imaging observations at Roque de
    LOS
    Muchachos (on La Palma) between June and July (see e.g.
    http://en.wikipedia.org/wiki/Image:M...lucky_10pc.gif and
    http://www.amazon.co.uk/Lucky-Exposures-Robert-
    Tubbs/dp/3836497697/ref=sr_1_5?ie=UTF8&s=books&qid=1217835939&sr=8-5 ).

    Conditions can be pretty bad during the winter on La Palma, though.

    Hope that's of interest.

    Bob


    Donal wrote:

  6. #6
    Andy G's Avatar
    Andy G Guest

    Default Images from Tenerife

    Tenerife is one of the nicest places I have observed from, but when I was up
    Mauna Kea at Gemini, and visiting Keck and UOH the skies there were just
    incredible even at the Onizuka Centre the observing was superb too.

    I also loved observing in Australia, I was at the AAO in the Warrumbungles
    at the GBR Observatory and that was awesome too.

    But Tenerife being so close to us is pretty damn good too.

    Cheers

    Andy
    --
    Mr Andrew R Green BSc(Hons) FBIS, FRAS


    "Bob Tubbs" <bob.tubbs@gmail.com> wrote in message
    news:489d5eb2$0$4241$6e1ede2f@read.cnntp.org...



  7. #7
    Bob Tubbs's Avatar
    Bob Tubbs Guest

    Default Images from Tenerife

    Actually, I've never observed on Tenerife -- only on La Palma. The fact
    that all the big nighttime telescopes were put on La Palma, while the
    daytime solar telescopes, and the infrared, microwave and radio
    telescopes were put on Tenerife agrees with the idea that perhaps the
    night skies might not be that dark on Tenerife.

    Bob

    Andy G wrote:

  8. #8
    Donal's Avatar
    Donal Guest

    Default Images from Tenerife

    Bob Tubbs wrote:



    I had exactly the same concern before going to Tenerife. However,
    there is very little difference between it and La Palma.

    Both sites have some visible light pollution on parts of the
    horizon. On Tenerife it is visible to the North-East and to
    the South - South-West. The photo here shows it:-
    www.astroimaging.org.uk

    That image has had very little processing, and the Milky Way
    is clearly visible down to the horizon which shows that
    there is not much pollution.

    I photographed Omega Centauri at an elevation of 6.5 degrees.
    The lowest that I have ever attempted from my back yard is
    23 degrees in narrowband.

    We tested the visual limiting magnititude on two nights, and
    both times it was 6.25.


    Donal
    --


  9. #9
    Andy G's Avatar
    Andy G Guest

    Default Images from Tenerife

    And what fantastic images they are too, thanks for posting them Donal. Glad
    you enjoyed the Parador, it certainly is a convenient place. Next Stop Mauna
    Kea then?

    Cheers

    Andy
    --
    Mr Andrew R Green BSc(Hons) FBIS, FRAS


    "Donal" <donal@lanospamde.com> wrote in message
    news:g7phq4$g0g$1$8300dec7@news.demon.co.uk...



  10. #10
    Donal's Avatar
    Donal Guest

    Default Images from Tenerife

    Andy G wrote:


    Thank you! The images would have been much better if I
    had stuck to the original plan. However, I acted like
    a spoilt kid in a candy shop - and tried for far too
    many targets.


    Only if there is a bar less than 100yds from my
    telescope :>)

    Actually, we are already planning a return trip for next year.


    Clear skies

    Donal
    --


 

 

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