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The Space Needle is an observation tower in Seattle, Washington, United States. Considered to be an icon of the city, it has been designated a Seattle landmark . Located in the Lower Queen Anne neighborhood, it was built in the Seattle Center for the 1962 World's Fair , which drew over 2.3 million visitors.
Space Needle: 184 m (605 ft) 1962 Steel Seattle, Washington: Built for the 1962 Seattle World's Fair, the Century 21 Exposition. 5 San Jacinto Monument: 173 m (567 ft) 1939 Concrete La Porte, Texas: The monument is topped with a 220-ton star that commemorates the site of the Battle of San Jacinto.
NGC 4565 (also known as the Needle Galaxy or Caldwell 38) is an edge-on spiral galaxy about 30 to 50 million light-years away in the constellation Coma Berenices. [2] It lies close to the North Galactic Pole and has a visual magnitude of approximately 10. It is known as the Needle Galaxy for its narrow profile. [4]
It is designated α Ursae Minoris (Latinized to Alpha Ursae Minoris) and is commonly called the North Star or Pole Star. With an apparent magnitude that fluctuates around 1.98, [ 3 ] it is the brightest star in the constellation and is readily visible to the naked eye at night. [ 16 ]
The same diagram may show the angle of grid north (the direction of the map's north–south grid lines), which may differ from true north. On the topographic maps of the U.S. Geological Survey (USGS), for example, a diagram shows the relationship between magnetic north in the area concerned (with an arrow marked "MN") and true north (a vertical ...
Navigators often use star charts to identify a star by its position relative to other stars. References like the Nautical Almanac and The American Practical Navigator provide four star charts, covering different portions of the celestial sphere. Two of these charts are azimuthal equidistant projections of the north and south poles. The other ...
True north refers to the geographical location of the north pole while magnetic north refers to the direction towards which the north pole of a magnetic object (as found in a compass) will point. The angular difference between true and magnetic north is called variation , which varies depending on location. [ 18 ]
North America Nebula: Nebula: 2.6 Cygnus: 4 C21 NGC 4449 Irregular galaxy: 10,000 Canes Venatici: 9.4 C22 NGC 7662: Blue Snowball: Planetary Nebula: 3.2 Andromeda: 9 C23 NGC 891: Silver Sliver Galaxy: Spiral Galaxy: 31,000 Andromeda: 10 C24 NGC 1275: Perseus A: Supergiant Elliptical Galaxy: 230,000 Perseus: 11.6 C25 NGC 2419 Globular Cluster ...