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The Starry Night Pro package contains a CD-ROM, a good manual (also provided Hardware), access to Internet databases, and other advanced features. Time period, computer operation for telescopes (if they have the appropriate While the Pro version ($130) reviewed here adds large star catalogs, a long

STARRY NIGHT PRO ENTER COORDINATES DOWNLOAD

The Backyard version ($50 $35 if you download it) gives you most of theįunctionality described below the Basic version ($30) has fewer stars andĬovers a shorter time period (though it’s adequate for naked eye viewing), You the appearance of the sky: stars and galaxies, the moon, planets, andĪrtificial satellites, at any time or place you choose.

Starry Night is one of the best of the desktop planetarium programs.

That you can be the one to tell all your fellow travelers, “That’s Putting a planetarium on your desktop is aĬonvenient and affordable way to learn to recognize the constellations, so The star patterns on the sky - the constellations - nowadays we usuallyĮxperience them only during faraway vacations, with no opportunity to learn Whereas people living a century ago were often familiar with

STARRY NIGHT PRO ENTER COORDINATES FULL

Of street and building lighting, a sky full of stars has become an unfamiliar population living in urban areas, and a proliferation Declination is from the Latin word for 'bending', an appropriate name for an angle.Home About Membership Calendar Events Journal Help Community Resources Whimsy Twitter Facebook Review of Starry Night Pro By Susan Kayser Washington Apple Pi Journal, reprint Seen from the Earth's equator, all celestial objects rise and set at right angles to the horizon, at times that depend directly on their right ascensions. The term right ascension sounds as if it refers to something ascending or rising at a right angle, and indeed it does. The Sun, Moon, and planets move around on the celestial sphere, so their right ascensions and declinations vary. The right ascensions and declinations of the stars are, for all practical purposes, constant. To move north in the sky means to move toward the north celestial pole. Hint: In astronomy, the directions north, south, east, and west always refer to the celestial sphere unless otherwise indicated.

STARRY NIGHT PRO ENTER COORDINATES SOFTWARE

Based on a chart created with Starry Night Pro astronomy software ( ), reproduced by permission. The whole sky as seen in Figures 2.1 and 2.2. Right ascension and declination are measured on an imaginary sphere that surrounds the Earth, on which the stars have fixed positions.įigure 2.4. Since the sphere rotates once per day, it makes sense to measure longitude in time units.įigure 2.4 shows the whole sky (as seen at the same time and place as Figures 2.1 and 2.2) with lines of R.A. Right ascension is like longitude but is measured in hours (0 to 24). Together, right ascension and declination are known as equatorial coordinates because they are based on a sphere whose equator and poles correspond to those of the Earth.ĭeclination is like latitude and is measured in degrees, negative if south of the equator. or 5) and right ascension (R.A., AR, or a).

Its rotation is that of the Earth, but in the opposite direction.Ĭoordinates on the celestial sphere are called declination (abbreviated Dec. Since the sphere is imaginary, its motion can be imaginary too, so astronomers pretend that the Earth holds still (with the observer's location right on top, of course) and the sphere rotates around it. This is an imaginary sphere, infinitely large, surrounding the Earth, on which the stars have fixed positions. That's exactly what they are, but the globe to which they refer is the celestial sphere (Figure 2.3). The alert reader will notice that Figures 2.1 and 2.2 are crisscrossed by lines that look like latitude and longitude on a globe.

Starry night pro enter coordinates