ISS in space visible from Mumbai when it makes solar transition
Mumbai,Dec22 :International Space Station is the largest artificial satellite in space orbiting Earth. The habitable satellite is so large that it is visible through naked eyes from Earth. The ISS appears like a bright spot in the sky. In the latest image of the day released by the US space agency NASA has shown solar transit made by the International Space Station.
The stunning image is a delight to watch for skygazers as it shows ISS crossing the solar surface. This composite image, made from ten frames, shows the International Space Station, with a crew of six onboard, in silhouette as it transits the sun at roughly five miles per second, Saturday, Dec. 17, 2016, from Newbury Park, California. Onboard as part of Expedition 50 are: NASA astronauts Shane Kimbrough and Peggy Whitson: Russian cosmonauts Andrey Borisenko, Sergey Ryzhikov, and Oleg Novitskiy: and ESA (European Space Agency) astronaut Thomas Pesquet.
It is here to mention that ISS revolves around the earth at a distance just 400 kilometers, and at a speed of at 8 km/second. In other words, it revolves around the earth 15 times in a day. Revolving from such a closer distance is the reason that people can manage to take a gaze at the space station in naked eye itself.
The ISS serves as a microgravity and space environment research laboratory in which crew members conduct experiments in biology, human biology, physics, astronomy, meteorology, and other fields. The station is suited for the testing of spacecraft systems and equipment required for missions to the Moon and Mars.
Recently, Shimla became the first place in India where ISS was visible through naked eyes, and since then the artificial satellite is visible from selected locations in the country. Now, people living in Mumbai have a great chance to see the International Space Station from today. The first sighting will occur at 6.54 pm today. “At that time, the ISS will be visible on Mumbai’s horizon,” said Arvind Paranjpye, director of Nehru Planetarium. “It will be in the line of sight of Mumbaikars, and slightly west of true north. At 6.51 pm and 16 seconds, it will climb up to 10° above the horizon. At this point, the satellite will head due north. At 6.54 pm and 2 seconds, it will move in the northeast direction; one should be able to see it passing at a 25° angle above the horizon. The ISS will become clearer as it climbs higher.”
More importantly, visibility of the ISS will be better tomorrow. “It will pass right overhead,” said Paranjpye. “It will start moving in the northwest direction at 6.41 pm and rapidly climb above the horizon at 6.43 pm. At 6.46 pm, it will be in an almost overhead position. Anyone in Mumbai should be able to spot it at this time.”
For ISS sightings users can visit ISS sighting web page and search their locations in the search bar. It will come up with the date and time at which you can view the ISS. However, if you are unable to find positive results at your location then it will show near places where you can view ISS.
How do I Spot The Station?
Time is when the sighting opportunity will begin in your local time zone. All sightings will occur within a few hours before or after sunrise or sunset. This is the optimum viewing period as the sun reflects off the space station and contrasts against the darker sky.
Visible is the maximum time period the space station is visible before crossing back below the horizon.
Max Height is measured in degrees (also known as elevation). It represents the height of the space station from the horizon in the night sky. The horizon is at zero degrees, and directly overhead is ninety degrees. If you hold your fist at arm’s length and place your fist resting on the horizon, the top will be about 10 degrees.
Appears is the location in the sky where the station will be visible first. This value, like maximum height, also is measured in degrees from the horizon. The letters represent compass directions — N is north, WNW is west by northwest, and so on.
Disappears represents where in the night sky the International Space Station will leave your field of view.
The space station looks like an airplane or a very bright star moving across the sky, except it doesn’t have flashing lights or change direction. It will also be moving considerably faster than a typical airplane (airplanes generally fly at about 600 miles (965 km) per hour; the space station flies at 17,500 miles (28,000 km) per hour).