Wednesday, April 18, 2012

Stellar Astronomy, Aristotle, Hegel and God of Israel

They are all in the big picture.

Aristotle (384 BC – 322 BC) teaches classification, categorization and this is going on in descriptive way.

Stellar classification is today very accurate and much has been invested into it because grouping stars into classes helps us to understand these heavenly bodies in the way classification works in all sciences.

Most stars are currently classified using the letters O, B, A, F, G, K, and M, where O stars are the hottest and the letter sequence indicates successively cooler stars up to the coolest M class. According to informal tradition, O stars are called "blue", B "blue-white", A stars "white", F stars "yellow-white", G stars "yellow", K stars "orange", and M stars "red", even though the actual star colors perceived by an observer may deviate from these colors depending on visual conditions and individual stars observed.

In the current star classification system, the Morgan-Keenan system, the spectrum letter is enhanced by a number from 0 to 9 indicating tenths of the range between two star classes, so that A5 is five tenths between A0 and F0, but A2 is two tenths of the full range from A0 to F0. Lower numbered stars in the same class are hotter.

Another dimension that is included in the Morgan-Keenan system is the luminosity class expressed by the Roman numbers I, II, III, IV and V, expressing the width of certain absorption lines in the star's spectrum. It has been shown that this feature is a general measure of the size of the star, and thus of the total luminosity output from the star. Class I are generally called supergiants, class III simply giants and class V either dwarfs or more properly main-sequence stars. For example, our Sun has the spectral type G2V, which might be interpreted as "a 'yellow' two tenths towards 'orange' main-sequence star". The apparently brightest star Sirius has type A1V.

Hegel (1770 – 1831) teaches us to search for logical processes, chain reactions, that provide scientific explanation how the stars described by various classification systems came to be what they are.

Stellar evolution is a fascinating and complex subject that requires experimental research but even more than that, theoretical considerations in human minds involving Mathematics, Theoretical Physics and other fields in Cosmological modelling.

Stellar evolution is the process by which a star undergoes a sequence of radical changes during its lifetime. Depending on the mass of the star, this lifetime ranges from only a few million years for the most massive to trillions of years for the least massive, which is considerably longer than the age of the universe.

All stars are born from collapsing clouds of gas and dust, often called nebulae or molecular clouds. Nuclear fusion powers a star for most of its life. Stars similar to our Sun gradually grow in size until they reach a red giant phase, after which the core collapses into a dense white dwarf and the outer layers are expelled as a planetary nebula. Larger stars can explode in a supernova as their cores collapse into an extremely dense neutron star or black hole. It is not clear how red dwarfs die because of their extremely long life spans, but they probably experience a gradual death in which their outer layers are expelled over time.

Stellar evolution is not studied by observing the life of a single star, as most stellar changes occur too slowly to be detected, even over many centuries. Instead, astrophysicists come to understand how stars evolve by observing numerous stars at various points in their lifetime, and by simulating stellar structure using computer models.

God of Israel
God of Israel is the only real God there is.

In His Book God says that He has created heavens and earth.

Space Theology does not mix religion and science in improper way.

There is no attempt to argue that in such and such way invisible God does this or that. The Book of Nature is open for all of us to study how things were created up to certain limit and regardless of our faith or lack of thereof.

Space Theology is worship
It takes science seriously and tries to understand what learned men and women have found out about Cosmos. It recognizes that God has made all this, that it really is His Sun as the Son of God says, and praises Him in worship for the grandeur and deep wisdom of His work.

But I say unto you, love your enemies, bless them that curse you, do good to them that hate you, and pray for them that despitefully use you and persecute you, that ye may be the children of your Father who is in Heaven. For He maketh His sun to rise on the evil and on the good, and sendeth rain on the just and on the unjust.
Matthew 5:44-45 KJ21

What is the point? you ask
We are the point.

There are cosmologists who use their knowledge of Nature in order to deny that God exists.

This is nonsense.

Science does not ask the ultimate question - Aristotle describes stellar classification, Hegel explains stellar evolution, but neither can answer Why?

Bible does also not provide the big answer Why?

But it says that God has made it all and that our job is to praise Him for it, like Adam and Eve praise Lord in Joseph Haydn's oratorio Creation and Haydn praises the Sun.

There are cosmologists who user their knowledge of Nature in order to praise God.

The difference is in attitude.

Those have a slight ironic smile on their lips when looking at the less-informed humans holding to religious world views and imagine, that their materialism is objective science.

These have soft smiles and humility in heart in face of the majesty of creation.

This is not just IMHO

German Albert Einstein (1879 – 1955) who passed away on April 18 was thinking in the same way, atheists tend to be proud but we should be humble.

British Sir Isaac Newton (1642 – 1727) was a truly humble man.

Both believed in God of Israel in their own way.

This in no way reduced from the quality and value of their scientific work.

No comments:

Post a Comment