Skip to main content

SOLAR ECLIPSES

SOALR ECLIPSE :

WHAT ARE SOLAR ECLIPSES?

A solar eclipse is a spectacular sight and a rare astronomical event. Each one is only visible from a limited area.
Today i.e on 21st June many locations will see a rare solstice annular solar eclipse on the same day as the June solstice.
This will happen only twice this century , in 2020 and on June 2039.


An eclipse of the sun happens when the new moon moves between the sun and Earth, blocking out the Sun's rays and casting a shadow on parts of the Earth.

The Moon's shadow is not big enough to engulf the entire planet , so the shadow is always limited to a certain area .
This area changes during the course of the eclipse because the Moon and Earth are in constant motion.
Earth continuously rotates around its axis while it orbits the Sun, and the Moon orbits the Earth. This is why solar eclipses seem to travel from one place to another.

TYPES OF SOLAR ECLIPSES:

  1. PARTIAL SOLAR ECLIPSES : It occurs when the Moon only partially obscures the Sun's disk and casts only its Penumbra on Earth.
  2. ANNUAL SOLAR ECLIPSE: It takes place when the Moon's disk is not big enough to cover the entire disk of the Sun , and the Sun's outer edges remain visible to form a ring of fire in the sky. An annular eclipse of the sun takes place when the Moon is near apogee , and the moon's antumbra falls on the Earth.
  3. TOTAL SOLAR ECLIPSE: It happens when the Moon completely covers the Sun , and it can only take place when the Moon is near perigee , the point of the Moon's orbit closest to Earth. We can only see a total solar eclipse if we are in the path where the Moon casts its darkest shadow , the umbra.
  4. HYBRID SOLAR ECLIPSE : It is also known as annular - total eclipses, are the rarest type. They occur when the same eclipse changes from an annular to a total solar eclipse , or vice versa, along the eclipse's path.

For a solar eclipse to take place , the Sun , the Moon , and the Earth must be aligned in a perfect or near perfect straight line. this happens around New Moon every Lunar month.

PROTECT YOUR EYES :
Never look directly at the Sun , eclipsed or otherwise , without any protective eyewear. The Sun's UV radiation can burn the retinas in your eyes leading to permanent damage or even blindness.

The best way to safely watch a total solar eclipse is to wear protective eclipse glasses or to project an image of the eclipsed Sun using a pinhole projector.

UPCOMING 5 SOLAR ECLIPSES :

21 JUNE 2020               SOLAR ECLIPSE (ANNULAR)
14 DEC 2020                 SOLAR ECLIPSE(TOTAL)
10 JUNE 2021                SOLAR ECLIPSE (ANNULAR)
4 DEC  2021                   SOLAR ECLIPSE(TOTAL)
30 APR 2022                   SOLAR ECLIPSE (PARTIAL)
Labels:

Comments

Post a Comment

If you have any doubt. Let me know

Popular posts from this blog

Mechanical Ventilation

Mechanical Ventilation Mechanical ventilation is a device that breathes for someone who is unable to breathe for themselves. Mechanical ventilation is also called positive pressure ventilation. Following an inspiratory trigger , a predetermined mixture of oxygen is forced into the central airways and then flows into the alveoli.  Mechanical ventilators are set to deliver a constant volume , a constant pressure or a combination of both with each breath. Modes of ventilation that maintain a minimum respiratory rates regardless of whether or not the patient initiates a spontaneous breath are referred to as assist control. Because pressures and volumes are directly linked by the pressure volume curve, any given volume will correspond to a specific pressure, and vice versa, regardless of whether the ventilator is pressure or volume cycled. Why is it needed ?  Brain and spinal cord injury or disease :  An injury or disease to the brain can interfere with the signs that control ...
Post a Comment
Read more

Georgia's Youngest coronavirus victim

 The seven year old Georgia boy who became the youngest person in the state to die of coronavirus drowned in a bathtub after having seizure caused by his high fever, an autopsy found. The child, who has not been named, is believed to have COVID-19 after attending a church in Savannah where two elderly worshippers also died from the virus. Chatham County Coroner Bill Wessinger described the results of the boy's autopsy to CNN on Monday and said that seizures due to high fevers are very common in children with coronavirus. wessinger said that the boy died about two weeks before his death was reported by the county health department last Thursday. The boy had been found unresponsive in the bath and was pronounced dead at a hospital, where he tested positive for COVID-19 postmortem, Wessinger said. The seizure conclusion came from a preliminary report, and the final report is still pending toxicology reports. The boy, who was African American , did not have any underlying health condit...
Post a Comment
Read more

TENNIS ELBOW(LATERAL EPICONDYLITIS)

TENNIS ELBOW : Tennis elbow is is an inflammation of the tendons that join the forearm muscles on the outside of the elbow. The forearm muscles and tendons becomes damaged from overuse . It happens when you work your elbow too much by repeating certain movements. Playing tennis or other racquet sports can cause this condition , however several other sports and activities can also put you on risk.                                         There is video of exercise attached ANATOMY OF THE ELBOW JOINT: Elbow joint is a joint made up of three bones: Humerus(upper arm bone) Two bones in forearm(radius and ulna) There are bony bumps at the bottom of the humerus called epicondyles.  The bony bump on the outside (lateral side) of the elbow is called lateral epicondyle. Muscles , ligaments and tendons hold the elbow joint together. The forearm muscles extend yo...
Post a Comment
Read more