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Arc inversion by Gerald Kelleher
It will be one of the trickiest topics in astronomy however when a lot of perspective debris is cleared and imaging is allowed to dictate a narrative, a clear...
Today 09:46 AM
by Gerald Kelleher Go to last post
0 5
Anatomy of a conceptual disaster by Gerald Kelleher
The original geocentric astronomers assumed the Earth was stationary and invested the other planets with a looping motion...
(Multi-page thread 1 2)
Yesterday 06:53 PM
by Gerald Kelleher Go to last post
10 59
Prism Diagonals Pros & Cons by [email protected]
Hi,I've always used celestron stardiagnol,, recently I purchased a celestron 90° erect image correcting prism,I've not yet used it.can anyone tell me what...
Yesterday 05:38 PM
by Chris.B[_3_] Go to last post
4 21
The aurora by Gerald Kelleher
https://www.usap.gov/videoclipsandmaps/spwebcam.cfm It is the first sign of polar night in a location which must be the most interesting in terms of...
May 22nd 17 06:58 PM
by Gerald Kelleher Go to last post
0 11
Help needed with buying a new scope in Australia by [email protected]
On Saturday, December 30, 2000 at 11:19:56 AM UTC+10, Attila Siha wrote: Hi to all the Aussies on these groups, I am new to astronomy, and would like to...
0 9
Angular Diameter of Solar Corona? by Davoud[_1_]
....for eclipse photography purposes. I will be photographing the eclipse with a "full-frame" DSLR. I have several 'scopes of varying focal length and...
May 21st 17 09:50 AM
by Gerald Kelleher Go to last post
6 42
Heliacal events and eclipse by Gerald Kelleher
Proof of the Earth's orbital motion is that the background stars appear to move parallel to the orbital plane and eventually behind the Sun's glare for a...
May 20th 17 07:33 AM
by Gerald Kelleher Go to last post
4 28
Oh, dear. The HAARP critics will have a field day... by Quadibloc
Low-frequency radio used to communicate with submarines... http://www.brantfordexpositor.ca/2017/05/18/human-activity-having-effect-on-outer-space is pushing...
May 19th 17 06:10 PM
by RichA[_6_] Go to last post
1 29
Belgium. Worst light pollution? by RichA[_6_]
Monty Python said: "Dirty, stinking, Belgian *******s!" http://www.bbc.com/news/world-europe-39900940
(Multi-page thread 1 2)
May 19th 17 09:53 AM
by Martin Brown[_3_] Go to last post
10 31
Strange fruit by Gerald Kelleher
https://www.theguardian.com/media/2017/may/15/kelvin-mackenzie-leaves-the-sun “At some future period, not very distant as measured by centuries, the...
May 15th 17 10:26 PM
by Gerald Kelleher Go to last post
0 18
JPL loon intrudes on NASA's loon global warming territory by RichA[_6_]
This is a good one. Like some Brit's plan to build $1.5 billion plants to...put C02 on the bottom of the ocean. alt.global-warming: A planetary scientist at...
May 14th 17 06:56 AM
by Chris.B[_3_] Go to last post
4 50
Planetary climate by Gerald Kelleher
The signs that astronomy is in recovery would include productive research on the Earth's climate. People who argue about ‘climate change’ using the...
(Multi-page thread 1 2 3)
May 13th 17 09:46 AM
by Gerald Kelleher Go to last post
28 85
USAF's humiliatingly small "Shuttle" replacement by RichA[_6_]
Eesh! Like replacing a Veyron with a Prius. http://www.bbc.co.uk/newsbeat/article/39843333/us-air-forces-secretive-space-plane-lands-after-two-years-in-orbit
May 9th 17 02:33 PM
by Chris L Peterson Go to last post
3 33
A view of the tides in 1666 by Gerald Kelleher
In a way the view of Wallace in respect to the empirical search of a cause for biological evolution morphed into Darwin's view and I have seen the former's...
May 8th 17 08:54 AM
by Gerald Kelleher Go to last post
3 53
Falcon 9 landing (close-up), 1 May 2017 by StarDust
https://www.youtube.com/watch?v=GoRKhH8J1YQ I want one for Christmas!
(Multi-page thread 1 2)
May 8th 17 06:45 AM
by Chris.B[_3_] Go to last post
12 75
Newtonian Empiricism Exposed! by Quadibloc
I heard that there were videos on YouTube "debunking" the Cavendish experiment, and indeed there...
May 5th 17 08:06 PM
by Gerald Kelleher Go to last post
3 37
Radio Meteor Obs. Bull. April 2017 by Chris Steyaert
Radio Meteor Observation Bulletin No. 285 of April 2017 (57 K) is available now as http://www.rmob.org/rmobtext/rmob1704.txt More information and the visual...
May 4th 17 06:42 PM
by Chris Steyaert Go to last post
0 63
Time and timekeeping by Gerald Kelleher
There was a movie out a few years ago about a mathematician who ended up in a wheelchair so now I believe there is a similar docu-drama coming out via National...
(Multi-page thread 1 2 3)
May 3rd 17 05:03 PM
by Gerald Kelleher Go to last post
22 133
Coming full circle by Gerald Kelleher
One of the greatest instruments astronomers have at their disposal is the use of analogies and especially when describing the observed motions we see from a...
(Multi-page thread 1 2 3 ... Last Page)
May 2nd 17 07:29 PM
by Gerald Kelleher Go to last post
36 123
Actual motions vs apparent/true motions by Gerald Kelleher
The hapless empiricist is stuck with an ideology they never really understood but have the dubious capacity to believe it anyway - "It is indeed a matter of...
April 30th 17 07:57 PM
by Gerald Kelleher Go to last post
1 47
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