Showing posts with label Astronomy. Show all posts
Showing posts with label Astronomy. Show all posts

Tuesday, November 01, 2011

A few thoughts on amateur astronomy


Long ago the Greeks called him Zeus – named after the God of the Gods, the king of kings and the master of all. I am talking about Jupiter – the largest planet of our solar system. Jupiter was one the first objects I saw with my telescope. And I have to say that the first experience was profound. I had looked at Saturn before, and its just obviously so pretty, you can see the rings and Titan. But Jupiter is a whole different story altogether.

It is spectacular, uniquely beautiful, awe-inspiring and overwhelmingly majestic. One look and you can tell – this is the king of all planets. When looking through the telescope, you can tell – despite the great distance – that it is a giant planet.

It has shielded us from asteroids and other hazards by attracting them towards him with his massive gravity. Jupiter happens to be just the right size for Earth to sustain its nature, if it were any bigger, its core would have triggered a nuclear fusion making it into another star. Most of our probes to the outer planets and outside of the solar system use Jupiter’s gravitational pull as a sling shot. So, by all standards, we owe a lot to Jupiter – and seeing him through the telescope demands a certain reverence. I guess the Greeks weren’t all that wrong after all!

Alongside Jupiter, I observed its four galilean moons, Io, Europa, Ganymede and Castillo! About four hundred years ago Galileo made the same observation and it changed the world. It is humbling to know that even four centuries ago, there was a scientist so true to his observations, that he risked the wrath of the Roman Church and along with it complete ostracism from society for scientific integrity. Galileo pointed his telescope toward Zeus and saw the four moons revolving around Jupiter! This clearly and observably refuted the notion that the universe revolved around Earth!

Later he sat in a cathedral and deduced from the chandeliers that the period of oscillation was independent of the size of the arc. Then, he refuted another common theory and suggested that heavier and lighter objects hit the earth at the same time. Which took some guts considering that the theory he was refuting was of Aristotle’s!

It is indeed exhilarating to make the same observations as this great father of astronomy. And it reminds us that each time we think we are sure of how the world works – how the universe is structured, we should know that it could all change with one observation! It helps mankind retain perspective when immersed and absorbed in our circles, we begin to think of ourselves beyond nature and above GOD.

A lot of people debate the existence of GOD - of intelligent creation. And many more still wonder if science can prove/disprove the existence of God. I think all of these deliberations are irrelevant. And you only need to take a decent enough telescope to a dark site to understand this.

How you define God is up to each individual. But the existence of God cannot be questioned.  Take  a telescope and go to a dark site – look at a distant galaxy, or a star forming nebula, look at Jupiter or its four moons and let yourself truly absorb it. Understand the distances involved, understand the physics involved, understand the science of each photon and you will see that for an arrangement of objects  so beautiful – there has to be a higher governing power.

So take it from me. Don’t care about what the religious books say or what Stephen Hawkins is typing out – the heavens through a lens will give you a more visceral and indelible spiritual experience than a temple ever will! And in that moment you will realize the Science and Religion to converge and mean the same thing – and any discrepancy between the two will disappear.

Welcome to Astronomy my friends! I assure you – IT WILL CHANGE YOUR WORLD!!

- Sanket

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Sunday, October 03, 2010

The skies above

A few days ago, NASA announced that we were going to get to see a 'Harvest Moon'. A 'Harvest Moon', comes only once every four years and a 'Super Harvest Moon' comes only once in a decade. Filled with excitement, I took out my little telescope and aimed it at our bright satellite - It took my breath away! I have seen the moon through a telescope - many times, I have even sat down observing, for hours the moon's contours and compared them with the maps I had. But till that night, I had never seen the moon so bright and so gorgeously luminous. The harvest moon revived, two of my dormant passions in a single night - that for star gazing and that for photography. The former more rewarding than the latter. 


[Image used under license agreements from - http://upload.wikimedia.org/wikipedia/en/7/78/Harvest_moon.jpg]


As I sat on the floor of my balcony, blackening my peripherals and breathing evenly to calibrate my instrument, I realized just how much I loved my little telescope. At the time I'd bought it, I had just finished my 10th grade exams, and had saved that entire year's pocket money in the hopes of buying myself a telescope. Finally when the money brimmed enough, I emptied the deposits and bought myself a starter refracting telescope. With the money left, I bought myself tickets to an astronomy show at the Nehru Planetarium and as always, astronomy mesmerized me and lifted my imagination to soaring heights.  

There is something so marvelous and so magical about watching celestial objects through a telescope - that in all honesty, I can not hope to capture it in words. If you have never seen the craters of the moon, or the rings of Saturn through a telescope - I beg you to take the time out and try it - just once, it will not fail to enthrall you! 

The first time I saw our Moon through my new telescope, it was the monsoon of '98. I had camped for the better part of an hour on the sheltered stairs of our building's terrace in the hope that the rains would stop - and I would get a chance to try out my new toy. Every now and then, I ventured out into the open and impatiently gazed at the sky to check if the cloud cover was dispersing. I hadn't been able to see the Moon - except find a bright spot in the sky veiling the shiny ball. 

At last when the rains stopped, I dashed out and dried myself a patch of ground and began to set up my telescope. My sister - a covert optimist - who had been waiting for my word, had already ran up the stairs many times trying to asses the success of my experiment - and along the way - had communicated as many reprimands from my parents for staying up that late.  I tried to ignore her while focussing my line of sight on the brightest spot I could find. Every now and then an edge would appear - giving me hopes that I might be able to get a clear window in the clouds  - just long enough to fine tune my focal length and render a sharp image. 

After a few persevering minutes, the wind finally picked up and the clouds started to dart faster. Every time I got a peek at the moon, I would adjust my telescope a bit more. My sister  - realizing that I hadn't heard a word she said, sensed that I was onto something and decided to wait until I erupted with shouts of success. 

And then  - at last the skies heard my prayers and I found a clearing in the clouds - long enough to follow the moon and explore its surface. It was a crescent moon. While a full moon has its own beauty, it is the crescent moon that gives the best opportunity to see its craters.  The view through my eye piece was quite simply magnificent! I played with all the lenses available to me and finally settled on the one giving me the sharpest image. I hurriedly called my sister to take a peek. She was suitably impressed. Then, adopting a big brotherly, knowing tone, I told her to hold steady and study every crater she could feast her eyes on. "Never forget what an amazing site you are getting to see, it was that shadow on the moon that taught us that the world was round" 

The night of the Harvest Moon, I realized just how much of that passion had been eroded in the course of normal life! I had forgotten how - just a tiny glimpse of the night sky had the capacity to tell profound stories. 

A simple glimpse of the moon has the power to take us millions of years backward in time - and show us how it accumulated the craters on its face. It is also the single most practical image that can give us an appreciation of how big the earth is and it also serves to remind us that while our feet may be planted strongly on the ground - the planet on which we stand - is itself suspended in space like all other heavenly bodies we see. 


[Image used from - http://upload.wikimedia.org/wikipedia/commons/a/a8/NASA-Apollo8-Dec24-Earthrise.jpg]

The night sky has, for thousands of years - inspired us to dream, it has compelled us to face who we are and judge our place in the Universe. It has led our ancestors to associate stellar patterns with the events of our lives. It has guided lost travelers across vast deserts to their destinations - as surely as it has guided human destiny toward science. In a world so twisted with deliberations over GOD and marred with whose GOD is right , it is actually the closest one can get to the divine. 

It reminds us just how infinitesimal we are - and how short-lived are our lives. It reminds us to be grateful for the home we are given and implores us to own our planet.  Our little blue planet, our beloved Earth, precious and fragile, beautiful and one of a kind. A marble of dream in a rather violent sky!

- Sanket

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Sunday, May 09, 2010

Starlight

I was walking within my apartment complex the other day - the hour was late and most of the world around me had already retired. The designers of my residence were thoughtful enough to include a long walking trail on the perimeter of our premises. It is aesthetic and wild with many a turn - winding through gorgeous tall trees and surrounded by beautiful foliage. In the day it thrives in the balmy summer air and bird songs while during the night it cultivates a cool breeze and the gentle rustle of tree leaves. A singular section of this trail goes through an open grass land - and on this particular night the sky was so clear that the stars above took my breath away!!! It caused me to pause my walk and lie down - and to think and reflect ....


[Image used in conformation of copy rights - http://upload.wikimedia.org/wikipedia/commons/7/71/M31_Lanoue.png]


I was distracted initially and I had a million things on my mind mostly revolving around my career, responsibilities and personal life - but after a while those thoughts settled and I felt anew a sense of calm - and in the silence of that moment - there was no one  and nothing between me and the stars. My breaths deepened and I felt myself intoxicated with awareness, for a brief period of time, we were breathing in complete harmony - me and the night around me. 

I have always loved stars, back in school I had managed to save up enough pocket money to buy a little telescope. This tube of lenses was my portal to the universe. Every week, I used to squeeze out some time - and away from the prying eyes of the world, I would escape to a tryst with these diamonds in the sky. 

Stars have a unique way of inspiring and humbling the human mind. They have been for centuries. Thousands of years ago, people of almost every civilization looked at the heavens above - at the same very patterns we see today - and tried to connect these revolving lights with the events of their lives. Almost anyone who has held an audience with the stars quickly comes to realize how minuscule human life really is. The sheer scale of the universe is staggering and quite beyond the realms of the most gifted of imaginations. Science itself has been trying mightily to encapsulate and explain the entire universe through one unified theory - from ether to the big bang - from string theory to the membrane, each time we thought we've found the answers - we've discovered - that we couldn't be more wrong. Even though I am a deep rooted and honest to GOD student of science - I find this human urge - 'to explain everything around them' - quite amusing, futile and of late unnecessary. 

What we do know is that a long time ago, our Sun and it surrounding planets evolved from the gasses and elements of this universe - first the star and then the planets around it ...... and eventually at one point - Life. Our comprehension and view of the universe has often times been too narrow and revolving only around the time the human species came into prominence on life upon Earth. Too often do we forget - that before us there was another species which ruled - that after us there still might be another creation to flourish and that before any of it we all really were just bubbles of elements boiling in hot lava. 

The intervention of that night's silence and its probe into my mind made me realize that often times we choose to dwell solely upon human life - and only our lives at that.  We surround ourselves with news and gossip - we argue and laugh amongst our friends - we fall in love and we fight - we hate and we fall in love all over again - we live and we die within and only within this tiny slice of time. While important, I find this view of life rather limited and sorely incomplete. 

I believe - failing to realize how minute and inconsequential our existence is - prevents us from understanding the true significance of life - and from admiring the true beauty of creation. Right before my conversation with the stars - I was stuck in a hard place in my life, one where I was perpetually worried that I might live my entire existence without making any significant contribution to the world. The dialogue helped me put all of my anxiety into perspective. 

The truth is we were all born out of this universe and when we die - we will all be part of this universe again. This concept was proven by Einstein but very few people choose to see it this way. There was a time in my life when I felt all living creatures were infinitely superior to dead things - like rocks and sand - where as the truth in fact is that the same elements that make all of our planets, make the rock and the same elements make us. We worry about causing the planet damage. Yes, its bad - and we shouldn't pollute - but its bad only for all life on earth - which - in the scheme of things is just a blip in the universe. I guess the point I am trying to drive home is that we make too much of ourselves. We have invested so much time and energy in trying to keep us alive for as long as possible - believing that a human life - rather a human's consciousness of life is the all essential thing to preserve - all the time failing to realize that it is the shortness and unpredictability of life that makes it so beautiful. 

As I lay on that cold earth - in total peace  - I felt for the first time as being one with the universe. All the problems and uncertainty of my life still remained - but I could  clearly hear what the starlight had whispered to me - That millions of years from now, when I would be no more - when Earth might be no more - we will all still, be a part of this universe - and perhaps some day a small boy on the top of a roof on some remote planet will see me as a speck of light - and be delighted once again as I was - this beautiful night. 

The only true meaning of life - I have come to believe is in enjoying our existence and feel - in each breath what our senses tell us. To find peace and happiness rooted in the certainty of our mortality and to enjoy this transient bijou we call life. We are after all - simply Starlight!!

- Sanket




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