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As promised by Gerald Kelleher
https://www.usap.gov/videoclipsandmaps/spwebcam.cfm The polar day/night cycle and its cause is here to stay with its own sunrise/sunset on the equinoxes and...
Today 05:22 PM
by Bill[_9_] Go to last post
2 5
Science of the Equinox by Gerald Kelleher
A person at the Equator experiences a symmetry of daylight/darkness throughout an orbit of the Sun while their counterpart at the South pole also experiences...
Today 03:55 PM
by Gerald Kelleher Go to last post
7 14
The rise of celestial sphere thinking by Gerald Kelleher
https://www.youtube.com/watch?v=kaG6PTVrFP4&t=72s https://www.youtube.com/watch?v=MWwmP4obdwA The notion of the 'sun crossing the celestial equator' along...
(Multi-page thread 1 2)
Today 03:36 PM
by Gerald Kelleher Go to last post
10 14
Have you seen this new 4" telescope prototype? by Borkum Riff
Apologies if you already have seen this. http://unistellaroptics.com/en/product Has anyone taken part in the demos they've done?
(Multi-page thread 1 2)
Today 04:24 AM
by Razzmatazz Go to last post
11 16
Questar should have made a 5" Mak-Cass by RichA[_6_]
I'd have liked one. I've owned the 3.5" and the 7" and believe 5" would be idea. Still relatively portable, yet with sufficient aperture to be used under...
(Multi-page thread 1 2 3 ... Last Page)
Today 03:53 AM
by Quadibloc Go to last post
190 1,464
Theory explained in 3 parts by Gerald Kelleher
Newton's idea was the Earth attracts an apple, the moon attracts the tides,the Earth attracts the moon and ultimately the Sun attracts the Earth hence the...
(Multi-page thread 1 2 3 ... Last Page)
Yesterday 06:02 PM
by Gerald Kelleher Go to last post
60 103
Eclipse glasses lawsuit: As predicted, the parasites come out of the woodwork by RichA[_6_]
Told you so. A US couple have filed a proposed class action lawsuit against Amazon, claiming they sustained eye injuries from solar eclipse glasses purchased...
September 19th 17 10:12 AM
by Martin Brown[_3_] Go to last post
2 47
NASA Confirm 23th September 2017 end of the WORLD by StarDust
https://www.youtube.com/watch?v=mR1ckPow4Ig Enjoy!
September 18th 17 10:22 AM
by StarDust Go to last post
1 26
Veil Nebula Closeup by Razzmatazz
Summer is drawing to an end and Cygnus is straight overhead during the night. This may be the best time to observe the Veil nebula, which has 3 bright parts...
September 17th 17 11:41 AM
by StarDust Go to last post
3 17
Astronomy Photographer of the Year 2017 by StarDust
http://www.bbc.com/news/in-pictures-41231623 The winning images from this year's competition have now been announced, with Artem Mironov's vibrant clouds of...
September 17th 17 09:19 AM
by Chris.B[_3_] Go to last post
4 17
Outlandish Small Particle Pair Table updated to 158 solids. Softwareupdate version 6. by Tony Lance[_13_]
Outlandish Small Particle Pair Table updated to 158 solids. Sumation N EQ 450 quadrillion. Software update version...
September 17th 17 12:48 AM
by Tony Lance[_13_] Go to last post
0 17
eclipse observation questions by Questor
Long time skywatcher, first total solar eclipse... I have read many accounts and seen many pictures, and Bailey's Beads are emphasized. Yet that effect...
September 14th 17 09:00 PM
by Questor Go to last post
0 17
Hurricane season by Gerald Kelleher
https://www.youtube.com/watch?v=vTig9gKegQk The sea temperature fluctuations North and South of the Equator are responsible for seasonal events such as...
September 10th 17 11:20 AM
by Gerald Kelleher Go to last post
1 63
The Pi Thread by Gerald Kelleher
The standard of discussion is so poor mathematically and geometrically that only with the greatest courtesy can it be called a discussion. The relationship...
September 10th 17 04:32 AM
by Quadibloc Go to last post
5 72
Positions of Mercury and Regulus by Gerald Kelleher
https://cdn-images-1.medium.com/max/1600/1*4qdNeV3mk_3S5VZAWoqwPA.jpeg On the eclipse Mercury and Regulus were to the left of the Sun however, due to...
September 9th 17 09:55 AM
by Gerald Kelleher Go to last post
0 36
Mount prices continue to rise by RichA[_6_]
Wow! I saw some mounts from Italy going for near five figures recently. Even cheapo mounts like those from iOptron and the like can top $1000.00 now.. ...
(Multi-page thread 1 2)
September 9th 17 07:44 AM
by Paul Schlyter[_3_] Go to last post
12 73
The Sun Today by Chris L Peterson
Shot this with my Canon 7D at UT 17:24 2017.09.06 with the new equipment I got for the eclipse (Stellarvue 102A on an iOptron CEM25P). So much smoke in the air...
September 8th 17 02:15 PM
by Gary Harnagel Go to last post
8 45
Radio Meteor Obs. Bull. August 2017 Perseids by Chris Steyaert
Radio Meteor Observation Bulletin No. 289 of August 2017 (58 K) is available now as http://www.rmob.org/rmobtext/rmob1708.txt More information and the...
September 7th 17 06:39 PM
by Chris Steyaert Go to last post
0 57
Defining the Equinox by Gerald Kelleher
No offence to the 'first point of aries' guys and their notion of the Sun's motion across an imagined celestial equator,the Sun coming into view on the Equinox...
September 4th 17 10:41 AM
by Gerald Kelleher Go to last post
4 77
Frozen Plasma - Foolish Dreams by StarDust
https://www.youtube.com/watch?v=XI1iRhaDUB0 Now did you know that I'm a scientist of life And did you know that my pathetic mind runs wild Oh tell me did you...
September 3rd 17 05:48 PM
by Chris.B[_3_] Go to last post
3 47
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