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I NEED A LARGER LIVING ROOM!

Apr 30 2020 03:27 PM | LB Myers in Articles

“Our largest and best…the 8” reflector. Designed for serious amateurs, colleges, schools”. Or, “The Super Space Conqueror…6” reflector telescope. American made”. My dreams were fed by those Edmund ads. What a dilemma for a 14-year-old back in the mid-sixties.

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BASIC EXTRAGALACTIC ASTRONOMY - Part 5: Black Holes and Quasars

Apr 20 2020 01:58 PM | rekokich in Articles

The only primary evidence available to an astronomer about a very remote object consists of photometric measurements, a spectrogram, and an image which is in many cases no more than a pinpoint of light. In this article we present basic cosmological concepts and simplified mathematical methods which allow an amateur to derive from this meager data a surprising number of physical properties of distant extragalactic objects with a precision of several percent within professional results.

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A Look at the Future of Amateur Telescope Makers

Feb 26 2020 12:44 PM | Augustus in Articles

Telescope making in particular is one of the facets of amateur astronomy that for so long has begun to drastically shrink in size and to perhaps seem due to disappear entirely. After all, with the availability of the omnipresent Chinese-made telescopes that have all but cornered today’s market, there’s little economic incentive to build your own scope - even at the largest apertures like 20 inches, mass manufacturing has begun to eat away at the surface-level basic cost advantages in doing it yourself.

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BASIC EXTRAGALACTIC ASTRONOMY - Part 4: Luminosity Distance, Cosmic Dimensions, Cosmic Magnification

Feb 26 2020 10:13 AM | rekokich in Articles

The only primary evidence available to an astronomer about a very remote object consists of photometric measurements, a spectrogram, and an image which is in many cases no more than a pinpoint of light. In this article we present basic cosmological concepts and simplified mathematical methods which allow an amateur to derive from this meager data a surprising number of physical properties of distant extragalactic objects with a precision of several percent within professional results.

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BASIC EXTRAGALACTIC ASTRONOMY - Part 3: Luminosity Corrections, Cosmological Extinction, and Mas...

Jan 16 2020 09:50 AM | rekokich in Articles

The only primary evidence available to an astronomer about a very remote object consists of photometric measurements, a spectrogram, and an image which is in many cases no more than a pinpoint of light. In this article we present basic cosmological concepts and simplified mathematical methods which allow an amateur to derive from this meager data a surprising number of physical properties of distant extragalactic objects with a precision of several percent within professional results.

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BASIC EXTRAGALACTIC ASTRONOMY - Part 2: Distance, Luminosity, and the Hubble Parameter

Dec 13 2019 02:13 PM | rekokich in Articles

The only primary evidence available to an astronomer about a very remote object consists of photometric measurements, a spectrogram, and an image which is in many cases no more than a pinpoint of light. In this article we present basic cosmological concepts and simplified mathematical methods which allow an amateur to derive from this meager data a surprising number of physical properties of distant extragalactic objects with a precision of several percent within professional results.

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BASIC EXTRAGALACTIC ASTRONOMY - Part 1: Redshift and Recession Velocity

Dec 13 2019 12:53 PM | rekokich in Articles

The only primary evidence available to an astronomer about a very remote object consists of photometric measurements, a spectrogram, and an image which is in many cases no more than a pinpoint of light. In this article we present basic cosmological concepts and simplified mathematical methods which allow an amateur to derive from this meager data a surprising number of physical properties of distant extragalactic objects with a precision of several percent within professional results.

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York County Star Party

Sep 27 2019 11:20 AM | gwfbmd in Articles

The York County Star Party exceeded my expectations – by about 1,000%! I don’t normally post online, but I let Phil know I would be speaking out about this. More astronomers need to know about this event. It is located conveniently close to home for many in the Baltimore-DC-Philly megaplex and it’s a “Winner.” I hope to see more of you there next year.

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New approach for Polar Alignment

Sep 27 2019 09:45 AM | antariksha in Articles

The topic of Polar Alignment is not at all new. Lot of approaches, automation tools are available. Yet, some aspects in all the current approaches drove me towards doing some more work. The key aspects of this approach are as follows. - Ability to do the Polar alignment without polaris sited - Relatively less complexity than drift alignment - Ability to address to a good extent the atmospheric refraction to finally locate correct NCP / SCP position - A good starting point for amateurs who wish to graduate towards sophisticated tools and techniques - Ability to quickly verify if the polar alignment is intact after one object photographed or viewed, and the equipment is being pointed to another object. This point is mentioned in light of the fact that sometimes the polar alignment gets disturbed and the next object photographed shows star trails. This is especially true if payload is tweaked for next photo.

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My Other Telescope is an 8.4 Meter - Part III: Polishing

May 08 2019 11:16 AM | Gork in Articles

I've started writing about this aspect of fabricating the world's largest monolithic mirrors a number of times. Each time I get to about ten pages before I realize how truly complex this phase of fabrication is. So, I am going to assume, for the sake of this account, that everything works as planned and there are no side tracks. That won't be true, but if I tell the real story, I'll never get done.

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