Delphinus
by Steve Coe
13.1" f/5.6 unless noted

NGC 6891 Bright, pretty small and somewhat elongated at 100X. It
is a little difficult to find in a rich Milky Way field. The
central star of this planetary comes and goes with the seeing at
270X. It is very nice aqua or blue-green in both the 13" and my old
18" f/6 Dobsonian.

NGC 6905 Bright, pretty large, elongated 1.5 X 1, central star easy
at 100X. Moving up to 270X with a Barlow lens reveals that the east
and west sides are brighter than the rest of the nebula. This
planetary is pale green at all powers. I have heard NGC 6905 called
the "Blue flash nebula" but I have never seen blue in this object.

Ultimate Star Party, McDonald Obs. Oct. 95, S=6, T=8, 25" f/5--

NGC 6905 in Delphinus with 25" with 12mm; grey color disk, central
star obvious. The curved polar cap effect is seen, with a bright
curved arc of material on a side of the central core.


NGC 6928 Faint, small, elongated 3 X 1 in 90, little brighter
middle at 150X. There is an 11th mag star 1 arcmin north.

NGC 6930 Faint, small, elongated 2 X 1, not brighter in the middle.
There are two very faint companions, one is 5' south.

NGC 6934 Bright, pretty large, much compressed, round and has a
much, much brighter middle at 100X. It can be seen in the 11 X 80
finder or 10 X 50 binoculars. This is the type of object that
responds with a much better view on a clear, transparent night. On
a night I rated 6/10 for seeing and transparency, down on the floor
on the desert near the Organ Pipe Cactus National Forest, I could
only resolve 3 stars with a mottled core at 160X. At the same power
on a beautiful night in the Red Rock country near Sedona at 5000
ft., this globular blazed with 40 stars resolved, 6 of them in the
core area. This distant globular is very grainy at all powers, there
are three layers of increasing brightness around the core and
averted vision makes this globular really grow is size. This is the
kind of observation to postpone until those rare 9/10 evenings when
stars twinkle very little and the Milky Way blazes overhead.

Eagle Eye S+T=7 6" f/6 25X--seen as non-stellar dot
65X--pretty bright, pretty small, round, somewhat brighter middle, 2 layers of brightness. 100X--still no resolution, but grainy, averted vision makes it much larger.

NGC 6944 Very faint, small, elongated 2 X 1 in PA 165 at 150X.

NGC 6944A Extremely faint, small, only suspected at 150X, never
held steady with direct vision.

NGC 6956 Pretty faint, small, very little elongated 1.2 X 1 in PA 90, very little brighter middle at 150X. There is a nice double star involved on the east side, 11 and 13th mag, 8 arcsec, PA 90.

NGC 7003 Faint, pretty small, elongate 1.8 X 1 in PA 120, little
brighter middle. At 150X there is a 13th mag star one min east.

NGC 7006 Pretty bright, pretty small, round, very bright middle and
very compressed at 100X. This very distant globular is one of the
most mottled objects I have ever seen in the 13" at 180X. This
extremely grainy globular has only shown me stars on its' face one
time. Using my old 18" f/6 at 210X, I saw 3 stars superimposed on
the surface of NGC 7006. One was held steady, the other two
appeared and disappeared with the seeing. This was on a night I
rated 8/10 for transparency and 7/10 for seeing. While viewing this
deep space wanderer, think of the view of Our Galaxy you would have
from 180,000 light years away.

NGC 7025 Faint, small, very little elongated 1.2 X 1 in PA 30,
little brighter middle at 150X.

PK59-18.1 ( Abell 72) Extremely faint, pretty large, irregularly round
at 100X. There are two stars involved and a 9th mag star on the
western edge. This object could not be seen on a good night without a
filter in the eyepiece. Choosing between the Oxygen III and the UHC,
the O III seems to do the best job on bringing out some contrast in
this dim nebula. Averted vision helps this object stand out as well.
There is a narrow dark lane on the north side.


Double Stars

Beta DEL Wide at 100X, white and light blue.

Gamma DEL the star that is the nose of the dolphin is a pretty wide
double, easily split at 100X. I see very little color and because the stars are almost the same magnitude, they look like two small car headlights coming at the telescope. On another night, I saw
light yellow and very light blue for color at 100X in the 13".

13 Del tough split at 330X, 5.5/9 mag and 2 arcsec in PA 180, only
seen as seperate about 20% of the time, even at high power.