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Topics - crypagsperless

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We truly live in interesting times...

GW170817 is a gravitational wave signal observed by the LIGO/Virgo collaboration on 17 August 2017, and is the first such event simultaneously observed in telescopes with an electromagnetic counterpart.[1] The signal, which had a duration of about 100 seconds, is the first gravitational wave detection of the merger of two neutron stars, and was associated with a soft short gamma-ray burst GRB 170817A,[2][3] found in NGC 4993.[4] No neutrino candidates consistent with the source were found in follow-up searches

This pretty much confirms that short gamma ray bursts are from merging binary neutron stars. This also shows where much of the elements heavier than Iron come from:

The gravitational wave signal indicated that the gravitational wave event was associated with the collision of two neutron stars[6][7][12][9] with masses between 0.86 and 2.26 times the mass of the Sun (solar mass). If a low spin is assumed, consistent with those observed in binary neutron stars that will merge within a Hubble time, this mass range reduces to 1.17 to 1.60 solar masses.[1] The total mass of the binary system was between 2.73 and 3.29 solar masses.[1]
The neutron star merger event is thought to be a kilonova. Kilonovae are candidates for the production of half the chemical elements heavier than iron in the Universe.[4] A total of 16,000 times the mass of the Earth in heavy elements is expected to have formed, including about 10 Earth masses of gold and platinum.[13]
It is not known what object was produced by the merger. Candidates are a neutron star heavier than any known neutron star today, or a black hole lighter than any known black hole.[11]

That is a LOT of precious metals...

Beginners Forum / Eclipse viewing with a 8" and 12" dob, which filter?
« on: December 30, 2017, 01:47:05 AM »
I'm planning on taking in the eclipse with one of my dobs, I have a old 8" Bushnell and a new Z12. Both will load up in the camper but the 8' is far easier but the z12 has better optics.  Both covers have the small opening for using a solar filter, so my question is- do I use the small opening or get solar filters large enough for the full openings. If I use the smaller openings would it make sense to haul out the 12" when the 8" has the same opening size. Thanks for any advice. Warren.

Beginners Forum / Beginner needs help!
« on: December 30, 2017, 01:17:30 AM »
I am not sure if this is where to start but here goes, I bought a Celestron 8 SE with a VX mount, SkySync GPS and a Starsense auto align. I have been very excited about getting started but this winter in Montana was very snowy, gray, cloudy and cold.
I finally got out tonight and I obviously expected too much.
My scope was looking in the alley, in the garden, at the shed and just about everywhere but the sky.
Celestron has notoriously vague and outdated manuals but no excuses.
I was all read up and thought I was ready last November and now I am lost.
Had a really disappointing night trying to make things work.
I am not sure how the GPS works, I thought it was automatically input to the scope and I apparently did not pick any stars on my side of the planet, and the StarSense would not auto align.
There is my frustrating story this far.
I really want to do this, I have wanted to since I was 8 years old and am now 55.
Can anyone give me a starting point? Not sure what to do.
Thank you so much, Steve in Billings, MT

Beginners Forum / Trouble focusing on the Orion Nebula
« on: December 27, 2017, 10:24:02 AM »
Hey all. I recently got my first scope, a Zhumell Z8 Dobsonian. Last night I looked at the Orion Nebula for the first time. However, no matter what I do, I can't seem to focus on the stars in the nebula. I can focus on other stars, so I don't think my equipment is the problem. Is there something I'm doing wrong? Thanks in advance for any advice!

Reflectors Telescopes Forum / Off axis mask experiences
« on: December 25, 2017, 10:14:48 AM »
I am interested in your experiences with off axis masks.  I saw a thread in archives, employing a Kendrick Kwik Focus, 4 port unit that sounded like it was a good experience.  I have a 10" dob, and was thinking that I might try out just one 4" opening.  If it goes well, then may try 4, 4" or 4".  What can I expect with either of these?  What really are they supposed to do besides eliminate spikes caused by the spider?  Your experience, good, or poor!  Thanks!

Beginners Forum / New Guy Need Help
« on: December 24, 2017, 10:05:13 AM »
Hey cloudy nighters ive had my scope around 2 decades now but not so busy by it.  I truly want to reach 2 things with it.  1 I would like to see things I never actually imagined in which there ( if they really are I mean theres heaps we aren't told  ) and two astrophotography being able to capture beautiful images of what I view.  I have a Celestron C8 on an AVX mount and orion star shoot autoguider pro monocamera a rebel T5 dslr a nextimage 5 camera along with a few other things.  A question that I have is using the nextimage 5 I am in a position to take videos in colour as well as the live perspective being in colour and then run them thru registax but my movies aren't that great so the final result isn't much to look at but when I use the orion starshoot camera not one of this live watch or videos I capture are in colour and im not certain why.  If any1 could explain to me the reason or what I need to change or purchase to find some fantastic images of what's dancing around above all our minds I'd love that.  Now I really don't care about paying the money so long as I receive the results im after.  Thanks Cloudy nighters!!

Beginners Forum / So I bought a (project) telescope. Good buy or Noob-fail?
« on: December 24, 2017, 09:03:58 AM »
I recently picked up a few telescopes with layouts on doing more telescoping in the not too distant future.

I picked up the Jason for $20 from a Craigslist ad and purchased the newtonian locally at for $200.  It arrived partly disassembled with the mirror/secondary boxed and separate.  It is what seems like an 8" F/4, however there isn't any make or FL about the focuser.  The only mark I discovered on it was about the back of this spider-vane, which said "LIN".

I am no expert, but I thought that the mount felt fairly solid and the focuser was easier than that about an Orion and Celestron also at the store.

I hope I didn't make a mistake.

Does anyone have any thought on the make of this newtonian?

Also, the secondary bracket is some sort of plastic/rubber.  What is the best method of cementing the secondary onto it?

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