The 124-mile-wide main belt asteroid dwells between Mars and Jupiter.
From New York City Iris 7 will be visible from 22:33 EDT when it rises to 21 degrees over the horizon to the southeast, according toThe asteroid will reach its highest in the night sky at around 00:46 EDT . Iris 7 will disappear at around 02:59 EDT when the asteroid sinks to below 21 degrees over the horizon to the southwest.
This ideal time to spot Iris 7 occurs as the asteroid makes its closest approach to the point in the sky over Earth that is exactly opposite the sun. The three celestial bodies are in a straight line with our planet in the middle of Iris 7 and the sun. Our star sinks to its lowest point below the horizon at around 12 am, meaning the point opposite it is at its highest at the same time.
During its Perigee Iris 7 will come to within around 179 million miles of Earth reaching a brightness of magnitude of 9.6. This means the asteroid will still be quite faint and thus isn't visible to the naked eye, thus requiring binoculars or a telescope to be seen. Iris 7 was first discovered in 1846 by J. R Hind and was the seventh asteroid to be discovered. The asteroid is believed to be around 124 miles wide and it has an extremely reflective surface thanks to its composition of nickel-iron metals, magnesium, and iron silicates.
This composition and the fact that the 3.7 Earth-year orbit of Iris 7 brings it close to the sun means this asteroid is the fourth brightest space rock in the main asteroid belt, after Vesta,If you are hoping to catch a look at the Iris 7 while the asteroid is in opposition, our guides to the best telescopes andIf you’re looking to snap photos of the night sky in general, check out our guide on
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