Transit Of Mercury In USA

What Does Transit Of Mercury Means?

A transit of Mercury across the Sun takes place when the planet Mercury comes between the Sun and the Earth, and Mercury is seen as a small black dot moving across the face of the Sun.

Mercury is a physically small planet, only three thousand miles in diameter, compared to Earth’s almost eight thousand. During the transit, Mercury will be visible as a tiny dot near the Sun’s northern edge. The planet will be ten seconds of arc in diameter, only one-half of one percent of the solar disc. This tiny size will require substantial magnification to see the Mercury’s disc against the Sun. A two-inch-diameter telescope is probably the minimum required to see the transit.

transit

Both our Earth and Mercury are moving in the same direction, counterclockwise as viewed downward from the north. Mercury is in an orbit that is much closer to the Sun, so it moves faster. From our viewpoint, speedy Mercury will approach the Sun from its west side. But Mercury and the Earth are not quite in the same orbital plane. The orbit of Mercury is tilted seven degrees from that of the Earth. This tilt usually takes Mercury above or below the Sun as seen from the Earth.

But there are two times a year that if Mercury happens to pass the Sun, it will crosses in front of the Sun. One of these times is around May 8, the other around November 10. If the transit occurs on either of these dates, Mercury will travel across the center of the Sun’s disc. The longer before or after those dates that a transit occurs, the farther Mercury will be from the center of the Sun. Our November 15 event will occur just at the end of the November transit “window”. As such, Mercury will be very near the north edge of the Sun during the transit. If Mercury had taken a day longer to pass the Sun, there would not be a transit at all.

Last Transit Of Mercury

The last transit of Mercury occurred on November 15, 1999. It was not visible from Europe The last visible of transit  from Europe occurred on November 10, 1973.

Region of visibility and invisibility

Here i have given the regions of visibility and invisibility of the May 9 transit. The cloud dataset is extracted from polar-satellite images acquired between 1982 and 2009 and compiled as part of the Patmos-x project. “Cloud” is a difficult parameter to measure, as it can be thin or thick, water or ice, and often composed of elements too small to register in the satellite image. The determination of whether a scene is cloudy or not is a process that is fraught with measurement biases, and so the map below should be used as an indication of the relative cloudiness of a region rather than the absolute probability of seeing the transit.

In North America, the best weather occurs over the southwestern deserts of the USA and adjoining parts of coastal Mexico.  Sunshine favours the Mediterranean coast of Europe and both the northern and southern thirds of Africa, though only the western Sahara is located to see the entire transit. It should come as no surprise that all of the best-situated regions are near or within the Earth’s great deserts, except for the cloud-free weather atop the Greenland icecap.

transit of usa

In addition to the telescope, you will need a full-aperture solar filter. This is a filter that reduces the brightness of the Sun by a factor of 10,000. They are placed over the front of telescope, covering the entire front aperture. This keeps the Sun’s heat from even entering the telescope. If you have a small filter that goes over the eyepiece, throw it out: the Sun’s heat could potentially crack the filter while you are looking through it. This would allow the full heat of the Sun, concentrated by the telescope and eyepiece to reach your eye. You will suffer extensive eye damage, so only use the full-aperture solar filter or do not look at the Transit.

There will not be another transit of Mercury visible from western North America until 2016, so don’t miss this one!

Time Zone Transit Starts Entry Finished Middle Exit Begins Transit Ends
Eastern 4:11 p.m. 4:22 p.m. 4:41 p.m. 4:58 p.m. 5:10 p.m.
Central 3:11 p.m. 3:22 p.m. 3:41 p.m. 3:59 p.m. 4:10 p.m.
Mountain 2:11 p.m. 2:23 p.m. 2:41 p.m. 2:59 p.m. 3:10 p.m.
Pacific 1:12 p.m. 1:23 p.m. 1:41 p.m. 1:59 p.m. 2:10 p.m.
Alaskan 12:12 p.m. 12:23 p.m. 12:41 p.m. 12:59 p.m. 1:11 p.m.
Position
Angle
33° 29° 23° 16° 13°

The next transits will be on

The next transit will appear on November 11, 2019,but it will appear only as a part as the sun set before transit finish

 

 

Of course, the weather forecast for the day will provide much more usable predictions for the event.

NASA Transit site

Best Individual Sports in USA

Best individual sports in USA

This article describes about the best individual sports in USA.The information is derived from those websites which are being browsed most in the United States of America. (The websites concerned with the individual sports are taken into consideration). Continue reading “Best Individual Sports in USA”

Best Team Sports in USA

Best team sports in USA

Team sports in USA-The most popular team sports in the United States are American football, basketball, baseball/softball, ice hockey, and soccer (association football),etc. All of these team sports are popular with fans, are widely watched on television, have a fully professional league, are played by millions of Americans, enjoy varsity status at many Division 1 colleges, and are played in high schools throughout the country. Continue reading “Best Team Sports in USA”

Best Tourist spots in USA

Tourist spots in USA

Continue reading “Best Tourist spots in USA”

Famous Temples in USA

Famous Temples In USA

Famous Temples in USA-Are there too many Hindu temples in America today?

Yes.

A brief count of Hindu-temple websites and the number of temples listed with the “Council for Hindu Temples of USA” reveal a conservative estimate of about 80 temples.

Far too many, in my opinion.i have listed few

Continue reading “Famous Temples in USA”

Top 10 satellites orbiting around the world

Top 10 satellites orbiting around the world

Today, a satellite was involved in your life. Whether you checked a weather report, watched SportsCenter or looked for your mom’s house on Google Maps, you did something that would have been impossible without an automated spacecraft orbiting hundreds of miles above your head. But how many of these satellites do you know by name? Here are the top ten you need to know, because they make modern life possible.

Hubble space technologies

Launched: 1990

hubble

Opening our eyes to the wonders of our ‘planetary’, Hubble brought the beauty and mystery of space by the photos. It has rich modern astronomy by being an efficient tool for new discoveries. Objective to visible the universe and to look the entire space with cameras.

HST is one of the greatest scientific projects having 2.4 m-diameter space telescope optimised to observe from the ultraviolet to the infrared, collaborated between ESA and NASA. Hubble was deployed by the Space Shuttle Discovery (STS-31) into a circular orbit 575 km above the ground, inclined at 28.5° to the equator. The time taken for one orbit is between 96 and 97 minutes. Hubble have received some new science instruments on1997. Hubble has resumed its scientific observations, with expanded science capabilities and an extended life.

 

GPS IIR-1

Launched: 1997

GPS IIR-11

Without this there won’t be the Geocaching! The U.S. government’s NAVSTAR program brought global positioning abilities first to the military, then to the general public. It takes a constellation of these things for the system to work the IIR-1 is the one among them. The GPS satellite and payload shroud survived intact until impacting the ground .The GPS satellite took charge, covered and handled perfect until impacting the ground.

 

The International Space Station (ISS)

Launched: 1998

iss

ISS is a space station, or an artificial satellite suited for maintaining and monitoring the spacecraft’s, in low Earth orbit. The ISS is now the largest artificial body in orbit and can often be seen with the naked eye from Earth. 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. It completes 15.54 orbits per day.

KH-13

Launched: 1999

Kh13

OOPS! A hidden information about the satellite. This U.S. spy satellite is so secret, even the name is probably wrong the government started giving them random names after people caught onto to the KH numbering system.

 

TERRA

Launched: 1999

terra

A Chief of the Terra Earth Observing System EOS which is a multi-national NASA scientific research satellite in a Sun-synchronous orbit around the Earth. It was placed into a near-polar, sun-synchronous orbit at an altitude of 705km.

Terra undertaken the five remote sensors designed to monitor to update the state of Earth’s environment and ongoing changes in its climate system.

  • ASTER(Advanced Space borne Thermal Emission and Reflection Radiometer)
  • CERES(Clouds and the Earth’s Radiant Energy System)
  • MISR(Multi-angle Imaging Spectro Radiometer)
  • MODIS(Moderate-resolution Imaging Spectro Radiometer)
  • MOPITT(Measurements of Pollution in the Troposphere)

Also Data from the satellite helps scientists better to census the spread of pollution around the globe. It gives entirely the updated and new data.

 

Landsat 7

Launched: 1999

landsat

The satellite for refreshing the global archives of satellite photos, providing up-to-date and cloud-free images. Has the capacity to collect and transmit up to 532 images per day a polar sun-synchronous orbit, meaning it scans across the entire earth’s surface. The data collected and distributed, managed and operated by the USGS. Landsat 7 has a solid state memory of 378 gigabits. The main instrument on board Landsat 7 is the Enhanced Thematic Mapper Plus.

 

GOES 12

Launched: 2001

goes

An American weather satellite, in April 2010 it is the standby orbit, position providing coverage of the east coast of the United States. GOES 12 was used instead in order to test its Solar X-ray Imager. The Solar X-ray Imager failed in April 2006.

From its high-altitude geosynchronous orbit, GOES-12 keeps a constant look on weather conditions in most of North America.

 

NOAA-17

Launched: 2002

noaa

A Weather forecasting satellite operated by NOAA. The NOAA satellites have asynchronous orbits, 824 km above the Earth, orbiting every 101 minutes. Spinning around the globe to spot developing weather patterns that affect billions of people. Satellite was retired in 2013 It hosted the AMSU, AVHRR and High Resolution Infrared Radiation Sounder (HRIS) instruments.

 

Galaxy 14

Launched: 2005

galaxy14-satelite

 

As one of the geostationary satellites. The Galaxy series is a family of satellites have updating many satellites. This communications relay carries digital TV signals for much of the east coast, including ESPN, Lifetime, Sci-Fi, CNN, A&E and personal favourite, the History Channel.

 

SES1

Launched: 2010

ses1

SES-1 is a geostationary communications satellite designed to replace two ageing spacecraft serving North America which is operated by SES World Skies.

It has a design life of fifteen years, however it was launched with enough fuel to operate for at least sixteen if its systems are still functional.