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About Sky Maps | Current Maps | Celestial Notes | Celestial Events Calendar | Additional Information

Scientific Frontline® Sky Maps are produced using
Cartes du Ciel Sky Charts Version 3.9 Beta
Northern Hemisphere uses Oklahoma City as the observation point. Southern Hemisphere uses Rio de Janeiro as the observation point
unless otherwise indicated. All times are UT Evening Twilight Astronomical. The Sky Maps will be updated daily for the following day.
They are a close representation of what you would see in the sky for this time period. Yet slight variation could be possible depending on your exact location. All maps are using Alt/Az Coordinate System, unless otherwise indicated.
More Information Bookmark

Custom Sky Maps available by request. Use the contact page and send us the time, date, city you live in. Looking for a particular object just let us know.
Request should be for at least two days in advance.

The Following Sky Maps are for April 02, 2013 – UT Evening Twilight Astronomical
Northern Hemisphere
Southern Hemisphere
Full Color
North | South | East | West | Zenith
Black and White
North | South | East | West | Zenith
Full Color
North | South | East | West | Zenith
Black and White
North | South | East | West | Zenith
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Celestial Notes for March 2013
The warmer nights of spring bring a panoply of new stars and constellations for skywatchers to enjoy. Leo is in good view by nightfall, climbing straight up from the eastern horizon, led by his bright “heart,” the star Regulus. Virgo follows the lion a couple of hours later. Auriga, the charioteer, is to the maiden’s left, marked by yellow-orange Arcturus, one of the brightest stars in the night sky. The brilliant planet Jupiter dominates the evening sky, with the orange “eye” of Taurus close by.
Some Information provided by: The University of Texas McDonald Observatory. Purchase their 2013 Sky Almanac for a year review of upcoming events.
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Upcoming Celestial Events
March 2013
Celestial Events maps are produced by Scientific Frontline® using the ESO VirGo® 1.4.4 Beta program
All Celestial Events maps are using Alt/Az Coordinate System and Oklahoma City (Northern Hemisphere) as the observation point.
All celestial event Times / Dates are listed by UTC time
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
24
25
26
27
28
01
MAP
Spica, the brightest star of Virgo, is close to the right of the Moon at first light.
02
MAP
The planet Saturn, which looks like a bright golden star, stands
just above the Moon at dawn.





 
03
04
MAP
Antares, the bright orange heart of Scorpius, huddles below the Moon in the pre-dawn sky.
05







Moon at Perigee
23:21 UTC
369953 km N-5d20h
06
07
08
09
10
MAP | INFO
Comet C/2011 L4 (PAnsTArrs) is expected to shine at its brightest.
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New Moon
19:54 UTC
12
13
14
15
16
17
18
MAP | MAP
Dazzling Jupiter is close to the upper right of the Moon at nightfall, with the orange star Aldebaran a little farther to the lower left of the Moon.
19










Moon at Apogee
03:14 UTC
404261 km N+7d 7h
20








Spring arrives in the northern hemisphere with the vernal equinox at
11:02 UTC
21
22
23
24
MAP
The Moon swings by Regulus, the heart of Leo. Regulus is to the upper left of the Moon in early evening on the 24rd, and about the same distance above the right of the Moon on the 25th.
25
MAP
The Moon swings by Regulus, the heart of Leo. Regulus is to the upper left of the Moon in early evening on the 24rd, and about the same distance above the right of the Moon on the 25th.
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27










Full Moon
09:30 UTC
28
29
MAP | MAP
Spica is to the upper right of the Moon, with the planet Saturn about the same distance to the lower left of the Moon late this evening. They are high in the sky at first light on the 29th, with Saturn to the upper left of the Moon and Spica farther to the right.
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Moon at Perigee
03:56 UTC
367493 km F+3d18h
01
02
03
04
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Information
Alt/Az Coordinate System.
The Alt/Az Coordinate System. is a celestial coordinate system that uses the observer's local horizon as the fundamental plane. This conveniently divides the sky into the upper hemisphere that you can see, and the lower hemisphere that you cannot (because the Earth is in the way). The pole of the upper hemisphere is called the zenith. The pole of the lower hemisphere is called the nadir.
Alt/Az Coordinate are:
* altitude (Alt), sometimes referred to as elevation, that is the angle between the object and the observer's local horizon.
* azimuth (Az), that is the angle of the object around the horizon, usually measured from the north point towards the east. In former times, it was common to refer to azimuth from the south, as it was then zero at the same time the hour angle of a star was zero. This assumes, however, that the star (upper) culminates in the south, which is only true for most stars in the Northern Hemisphere.
The Alt/Az Coordinate System. is sometimes also called the az/el or Horizontal Coordinate System.
UT Evening Twilight Astronomical
Astronomical Twilight begins when the Sun's center is 18 degrees below the horizon.
Civil Twilight begins when the Sun's center is 6 degrees below the horizon; Nautical Twilight begins when the Sun's center is 12 degrees below the horizon.
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