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anyone interested in astronomy?

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Re: anyone interested in astronomy?

Postby cyprusgrump » Tue Feb 27, 2024 4:00 pm

Londonrake wrote:Lordo, you should trust me on this. It would make far more sense and serve you better if you went for a GCSE O level in English Language. :wink:



Given the fantasy World he inhabits a course on Astrology might be more useful than Astronomy... :lol:
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Re: anyone interested in astronomy?

Postby Pyrpolizer » Tue Feb 27, 2024 6:37 pm

cyprusgrump wrote:
Londonrake wrote:Lordo, you should trust me on this. It would make far more sense and serve you better if you went for a GCSE O level in English Language. :wink:



Given the fantasy World he inhabits a course on Astrology might be more useful than Astronomy... :lol:


I'd bet you would claim Lordo lives in a fantasy World, if he would ever tell you, that you are not really Sagittarius but a Scorpion. However he would be Astronomically correct. :P
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Re: anyone interested in astronomy?

Postby Lordo » Tue Feb 27, 2024 8:47 pm

Pyrpolizer wrote:
cyprusgrump wrote:
Londonrake wrote:Lordo, you should trust me on this. It would make far more sense and serve you better if you went for a GCSE O level in English Language. :wink:



Given the fantasy World he inhabits a course on Astrology might be more useful than Astronomy... :lol:


I'd bet you would claim Lordo lives in a fantasy World, if he would ever tell you, that you are not really Sagittarius but a Scorpion. However he would be Astronomically correct. :P


Hang on a mo, I have not done the course yet. But I thought we were talking about Astronomy not Astrology. Naturally in CG's and LR's world they would study Asshology. That's their expertise. They will excel in that.
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Re: anyone interested in astronomy?

Postby Londonrake » Tue Feb 27, 2024 10:11 pm

Lordo wrote:Hang on a mo, I have not done the course yet. But I thought we were talking about Astronomy not Astrology. Naturally in CG's and LR's world they would study Asshology. That's their expertise. They will excel in that.


Absolutely. That’s why we’re here. To study you.
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Re: anyone interested in astronomy?

Postby Pyrpolizer » Tue Feb 27, 2024 11:26 pm

Lordo wrote:
Pyrpolizer wrote:
cyprusgrump wrote:
Londonrake wrote:Lordo, you should trust me on this. It would make far more sense and serve you better if you went for a GCSE O level in English Language. :wink:



Given the fantasy World he inhabits a course on Astrology might be more useful than Astronomy... :lol:


I'd bet you would claim Lordo lives in a fantasy World, if he would ever tell you, that you are not really Sagittarius but a Scorpion. However he would be Astronomically correct. :P


Hang on a mo, I have not done the course yet. But I thought we were talking about Astronomy not Astrology. Naturally in CG's and LR's world they would study Asshology. That's their expertise. They will excel in that.


IT IS about astronomy.Both series start from easy things and go to very-very complicated. There was a small part at the beginning of the 2022 series about the star formations and how people use them either a) for nonsense like astrology which today is totally wrong even on the dates it uses or b) to scientifically correct applications.I guess we all know the Polaris points almost exactly to the North, but did you know that it's angle from the horizon= Latitude?
In London it is 51 degrees in Nicosia 35. You can use that to Navigate North <--> South in the open seas.

These are the easy things. On lesson 3 out of 5 I got stuck for a whole day as I couldn't understand it. :(
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Re: anyone interested in astronomy?

Postby Londonrake » Tue Feb 27, 2024 11:39 pm

It seems to me, there’s been quite a lot going on in the astronomical sphere recently. Down mainly to the advent of new, very high tech telescopes/sensors, both space and earthbound.

I always read the articles and there have been some pretty amazing revelations about our universe. Past and present.

The odd thing is, they tend for some reason, to be buried at the bottom of page 6. :?

Perhaps it’s me though.
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Re: anyone interested in astronomy?

Postby repulsewarrior » Wed Feb 28, 2024 6:45 am



...by now you know it landed on its side; discussing the lander's successes and failures.
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Re: anyone interested in astronomy?

Postby Pyrpolizer » Wed Feb 28, 2024 2:06 pm

Londonrake wrote:It seems to me, there’s been quite a lot going on in the astronomical sphere recently. Down mainly to the advent of new, very high tech telescopes/sensors, both space and earthbound.

I always read the articles and there have been some pretty amazing revelations about our universe. Past and present.

The odd thing is, they tend for some reason, to be buried at the bottom of page 6. :?

Perhaps it’s me though.


Space-bound are the most important because the Earth's atmosphere as well as the the light "pollution" coming from towns at night is very prohibitive . E.g. With Earthbound we hardly ever managed to get data for more than a few thousand stars however with GAIA we already got for 1 billion. Not everything is NASA's. Gaia is European :wink:
https://en.wikipedia.org/wiki/Gaia_(spacecraft)
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Re: anyone interested in astronomy?

Postby Lordo » Wed Feb 28, 2024 3:49 pm

Pyrpolizer wrote:
Lordo wrote:
Pyrpolizer wrote:
cyprusgrump wrote:
Londonrake wrote:Lordo, you should trust me on this. It would make far more sense and serve you better if you went for a GCSE O level in English Language. :wink:



Given the fantasy World he inhabits a course on Astrology might be more useful than Astronomy... :lol:


I'd bet you would claim Lordo lives in a fantasy World, if he would ever tell you, that you are not really Sagittarius but a Scorpion. However he would be Astronomically correct. :P


Hang on a mo, I have not done the course yet. But I thought we were talking about Astronomy not Astrology. Naturally in CG's and LR's world they would study Asshology. That's their expertise. They will excel in that.


IT IS about astronomy.Both series start from easy things and go to very-very complicated. There was a small part at the beginning of the 2022 series about the star formations and how people use them either a) for nonsense like astrology which today is totally wrong even on the dates it uses or b) to scientifically correct applications.I guess we all know the Polaris points almost exactly to the North, but did you know that it's angle from the horizon= Latitude?
In London it is 51 degrees in Nicosia 35. You can use that to Navigate North <--> South in the open seas.

These are the easy things. On lesson 3 out of 5 I got stuck for a whole day as I couldn't understand it. :(

I found this on Open University

What you will study
First, you’ll look at some astronomy fundamentals. You’ll learn how modern astronomers measure the universe, considering spectroscopy, imaging and time-variability as observational tools.

Topic 1: Cosmic length scales
Starting with the sizes of things, this topic explains astrometry – how we measure positions of astronomical objects. Then photometry – how we measure the brightness of such objects. Eventually, we’ll combine both concepts to see how we can measure distances in the Universe.

Topic 2: The spectral Universe
You’ll begin by understanding how continuum emission or black body radiation enables astronomers to determine stellar temperatures, radii and luminosities. And learn about energetic processes in evolving galaxies. You’ll move on to understand absorption and emission spectroscopy, in particular, how astronomers use stellar spectroscopy to classify stars. Leading to the Hertzsprung–Russell diagram, a vital tool for understanding stars and stellar evolution. Finally, you’ll see how astronomers can exploit spectroscopy to look at how astronomical objects move through space relative to each other. And to look at motions within objects, focusing on the interior of stars, rotation of a spiral galaxy, or gas-turbulence in molecular clouds.

Topic 3: Mapping and classifying the Universe
You’ll exploit the multiwavelength view modern astronomy has of stars and galaxies. You’ll reach beyond pretty pictures to learn how we can quantitatively describe astronomical objects using measurements from images. See how we construct all-sky images from detailed telescopic surveys. And build a systematic understanding of the constituents of a galaxy, and where in a galaxy we find them. But we know we cannot see all the Universe, even with electromagnetic images – by the end of Topic 3, you’ll understand how we hunt for dark matter and black holes.
Having got the astronomy essentials under your belt, topics 4–6 focus on how we use mapping, imaging and spectroscopy tools to reveal the lifecycles of stars and galaxies.

Topic 4: Birth and life
This topic concentrates on how the action of a single force – gravity – can generate structure on all scales. From star formation, through stellar orbits, and onwards in scale, to galaxies and even the vast web-like structures that interconnect galaxies themselves. You’ll learn more about stars by studying the nearest star to us, the Sun. And understand the nuclear processes that fuel all stars at their core.

Topic 5: Evolution and death
This topic highlights what happens to nuclear processes in the final stages of stellar lifecycles. And the interplay between the lives of individual stars and the evolution of populations of stars within galaxies. You’ll see how the initial mass of a star plays a profound role in its eventual fate. Discover supernovae explosions, the formation of white dwarfs, neutron stars and red giants. Revise the Hertzsprung­–Russell diagram and trace the evolutionary track of stars. Delving into stellar archaeology, you’ll see how stellar populations reveal how galaxies change with time. And see how the abundance of chemical elements is linked to star-formation histories.

Topic 6: Extreme Universe
By ‘extreme Universe’, we mean environments that are extremely dense, extremely hot or have extremely high gravitational or magnetic fields. This leads to some of the most extreme events that happen in our Universe: from the impact of supermassive black holes that power active galaxies to binary star systems to pulsars. You’ll explore jets, outbursts and accretion processes. The topic finishes by describing the first detections of gravitational waves from merging pairs of black holes and neutron stars. And the emergence of multi-messenger astronomy – where gravitational and electromagnetic detections of astrophysical events are combined.

Topic 7: Cosmic timescales
Finally, in Topic 7 we synergise everything you’ve learned in S284 – looking from the perspective of cosmic timescales, rather than cosmic length scales. You’ll see how time-variability and time-domain astronomy is as important in understanding astrophysical processes as length scales and measurement techniques. You’ll identify how the Universe has evolved to its current state, and how it will evolve in the future. Having seen the importance of large-scale observational facilities to modern astronomy, and the need for multiwavelength and even multi-messenger telescopes, we close considering the impact of modern astronomy on the world at large. Whilst our quest for knowledge is unabated, what impact can the cost, building and situation of international observatories have on the local environment, customs or economy? What kinds of responsibilities must astronomers consider in their quest for ‘eyes on the Universe’?
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Re: anyone interested in astronomy?

Postby Londonrake » Wed Feb 28, 2024 7:09 pm

As always, you've just cut 'n' paste that. In order to give the impression you are "with it". In reality you really don't have a clue on the subject. Far too time consuming.
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