September 1, 2018
The phase of the Moon is waning
gibbous today.
Three bright planets line up in the
southwestern sky just after sunset
tonight. See the image to the left for
more details.
September 2, 2018
The phase of the Moon is waning
gibbous today.
That bright red star that you see
one third of the way up in the west at
9:30 PM is Arcturus, a Red Giant in the
constellation of Boötes.
September 4, 2018
The phase of the Moon is waning
crescent today.
If you are fortunate enough to
have a dark enough sky, look for the
‘Teapot’ asterism of the constellation
of Sagittarius tonight. The Milky Way
looks like steam rising from the
teapot. Click on the image to the left.
Of course, the lines won’t be in the sky!
September 5, 2018
The phase of the Moon is waning
crescent today.
As soon as it gets completely dark
tonight, look almost all the way up in
the southwest to find the trapezoid of
stars that form the constellation of
Hercules. On the right edge of this
trapezoid, you may see a fuzzy star
which is actually the globular cluster
M13.
September 7, 2018
The phase of the Moon is waning
crescent today.
This is the birthday of the late
James Van Allen, who discovered the
zones of radiation surrounding the
Earth.
September 8, 2018
The phase of the Moon is waning
crescent today
The bright red star you see about
one third of the way up in the west at
sunset is called Arcturus, the brightest
star of the constellation Boötes. It's a
relatively nearby Red Giant star.
September 9, 2018
September 10, 2018
September 11, 2018
The phase of the Moon is waxing
crescent today.
Look very low in the south after
sunset to see the red giant star called
Antares.
September 12, 2018
September 13, 2018
The phase of the Moon is waxing
crescent today.
Look for the Great Square of
Pegusus in the east tonight at about
10 PM.
Click on the image to the left for
a preview.
September 14, 2018
The phase of the Moon is waxing
crescent today.
Vega is nearly overhead at sunset;
a blue-white star which is about 27
light years away from Earth. It is the
fifth brightest star in the sky and
should be visible even for observers at
the center of the brightest city.
September 15, 2018
The phase of the Moon is waxing
crescent today.
Have you seen the ‘W’ shape of
the constellation Cassiopeia in the
northeast after sunset? Click on the
image to the left for help finding this
shape.
September 16, 2018
The Moon is at first quarter at
23:15 U.T. today. Mars is at perihelion.
That bright star right overhead for
northern observers is Vega, one of three
stars in the Summer Triangle. Vega is
only 25 light years away. Altair below is
closer still at 16 L.Y. But Deneb, to the
left, is over 100 times farther away than
the other two at 3200 Light years.
September 17, 2018
The phase of the Moon is waxing
gibbous today.
In the east after sunset, You’ll see
the constellation of Andromeda , home
to the famous M31 spiral galaxy, the
closest spiral galaxy to our own Milky
Way.
September 18, 2018
The phase of the Moon is waxing
gibbous today.
Tonight at 9PM, you’ll find the
waxing Moon right in between two
bright planets, Mars to the left (do you
see its red color?), and Saturn to the
right.
September 19, 2018
The phase of the Moon is waxing
gibbous today.
September 20, 2018
The phase of the Moon is waxing
gibbous today.
Mercury is in conjunction with the
Sun today and quite unobservable.
September 21, 2018
The phase of the Moon is waxing
gibbous today.
September 22, 2018
The phase of the Moon is waxing
gibbous today.
September 23, 2018
The phase of the Moon is waxing
gibbous today.
This is the date of the autumnal
equinox, the first day of autumn in the
northern hemisphere. At 1:54 U.T. the
Sun crosses the celestial equator.
There will be nearly the same number
of hours of daylight and darkness. See
the link above for the technical
explanation.
September 24, 2018
The phase of the Moon is waxing
gibbous today.
Venus reaches its greatest
brilliancy at an apparent magnitude of
-4.78. Wow, that’s bright.
The International Space Station
should be making a nice evening pass
for residents of southeast Michigan
tonight as well.
September 25, 2018
The Moon is Full at 2:52 U.T.
today.
This is the Harvest Moon, the Full
Moon closest to the date of the
autumnal equinox.
September 26, 2018
The phase of the Moon is waning
gibbous today.
Mars dominates the southern sky
this evening. It is about one third of
the way up at 9:30 PM local time.
Having just passed opposition in late
July and being very near perihelion,
this is one of the best observing
possibilities in a long time!
September 27, 2018
The phase of the Moon is waning
gibbous today.
September 28, 2018
The phase of the Moon is waning
gibbous today.
September 29, 2018
The Moon is a waning gibbous
today.
September 30, 2018
The phase of the Moon is waning
gibbous today.
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