in this video we will discuss how to
find the North American Nebula and by
extension the open cluster NGC 6997 the North American Nebula is
an emission nebula covering an area the
size of approximately four full moons of
the night sky however due to its low
surface brightness it can't usually be
seen to the naked eye to find the nebula
first locate Vega a very bright star we
use as a reference star in another video
then head northwards to find the
bright star Deneb at the bottom of
the Summer Triangle Deneb is a rather
interesting star being a blue-white
supergiant it's luminosity is between
fifty five thousand one hundred ninety
six thousand times that of our own Sun
once you have found this star head
northwards again three degrees until
you've found the open cluster NGC 6997 this open cluster should
be visible with most telescopes and as a
good cluster to locate because once it
is found you are certain that you are
focused on the actual nebula the open
cluster should look something like this
at the naked eye your cluster is shown
on the top corner as you can see the nebula you may have been expecting to
see isn't there this isn't a problem the
camera a similar view is returned
through an eyepiece as well I took an
awful lot of captures and I'm combining
them together into one image which
passes straight through the nebula and
still no that nebulosity is visible just
to confirm to everyone that I'm indeed
looking in the correct location here is
the same image after it has been
returned from astrometry.net
that locates the image position in the
night sky and as you can see it is in
the expected location this next image
uses a lot of drizzling to try and bring
out the nebulosity
there is a slight hint of it but I'm not
really convinced this final image is
taken by the Hubble Space Telescope
at the same area so of course we'll
never get an image like this right now
it's a telescope however we should be
able to get an image this as least
resembles it probable cause of the issue
is that this was taking the London
suburbs and so the light pollution
drowned out the low service area
brightness of the nebula I intend to get
an oxygen three filter that will remove
almost all of the light except the
light of the nebula
I will then revisit this nebula in another video
so that's all folks for another episode
please comment if you have got any questions
like if you enjoy the video and
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astronomy videos goodbye and clear skies
