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A better view of direct/retrogrades for Mercury/Venus by Gerald Kelleher
I sometimes see people scramble to put observations in proper context and that is fine,at least up to a point. The wayward video commentaries of Venus/Mercury...
(Multi-page thread 1 2)
Today 11:25 AM
by Gerald Kelleher Go to last post
13 94
Exoplanet Beta Pictoris b by Gerald Kelleher
https://www.youtube.com/watch?v=0cztuUUg-9M There is an adjustment to make when viewing the closed loop of this exoplanet in contrast to the circuits of Venus...
Yesterday 03:04 PM
by Gerald Kelleher Go to last post
0 12
Neil DeGrasse Tyson headed down same loony road as Carl Sagan? by RichA[_6_]
Towards the end, Sagan, formerly a productive astrophysicist from Cornell and publicizer of astronomy became a bit of a pariah, wandering around, screeching at...
(Multi-page thread 1 2 3 ... Last Page)
Yesterday 04:29 AM
by Quadibloc Go to last post
522 1,369
Supernova event as a transition phase by Gerald Kelleher
In 1990 I was working on stellar evolution and specifically the geometry of a pre-supernova star. In terms of the tug-of-war between density and volume in and...
(Multi-page thread 1 2)
November 12th 18 05:39 PM
by Gerald Kelleher Go to last post
10 97
APoD today by Gerald Kelleher
https://apod.nasa.gov/apod/astropix.html At least people are learning how to describe and differentiate the illusory loops of the slower moving planets where...
November 10th 18 11:13 PM
by Gerald Kelleher Go to last post
1 20
'Oumuamua by StarDust
https://www.youtube.com/watch?v=rfi3w9Bzwik So, why not just use asteroid for space craft by attaching a few rocket engine to it, drill a few caves inside for...
November 10th 18 10:43 AM
by Martin Brown[_3_] Go to last post
1 19
Geostationary satellites by Gerald Kelleher
A satellite in a geostationary orbit is basically an extension of the Lat/Long system into space as a sat hanging over a particular longitude on the surface is...
November 10th 18 07:44 AM
by Gerald Kelleher Go to last post
7 32
Gliese 710, means **** will hit the Earth? by StarDust
https://en.wikipedia.org/wiki/Gliese_710 Gliese 710 has the potential to perturb the hypothetical Oort cloud in the outer Solar System, exerting enough force...
November 8th 18 05:44 PM
by Gerald Kelleher Go to last post
2 21
Radio Meteor Obs. Bull. October 2018 Draconids Leonids by Chris Steyaert
Radio Meteor Observation Bulletin No. 303 of October 2018 (71 K) is available now as http://www.rmob.org/rmobtext/rmob1810.txt More information and the...
November 6th 18 07:29 PM
by Chris Steyaert Go to last post
0 45
The North pole and Equator of the Sun by Gerald Kelleher
https://www.youtube.com/watch?v=ipvfwPqh3V4&t=64s When it was discovered that the planets orbit the Sun, it became an issue of speculation as to why they did...
November 6th 18 09:03 AM
by Gerald Kelleher Go to last post
0 26
Keppler kicks the bucket, pity electric power can't be converted to thrust by RichA[_6_]
November 3rd 18 02:09 AM
by Quadibloc Go to last post
1 90
bright NEO object from NEO confirmation list by [email protected]
This morning there was a bright (~12th magnitude) object listed on the NEO confirmation page; it is now no longer on the list, presumably because additional...
November 2nd 18 03:58 PM
by [email protected] Go to last post
0 49
First day of winter by Gerald Kelleher
The next 3 months with the December Solstice at their centre represent that period when Northern hemisphere locations begin to slide into the darkest and...
November 1st 18 11:52 AM
by Gerald Kelleher Go to last post
0 53
What sometimes happens by Gerald Kelleher
Over the years I developed a real respect for astronomical practitioners at the level of composition which involves completing a narrative with incomplete...
November 1st 18 10:18 AM
by Gerald Kelleher Go to last post
1 60
Astronomy Photographer of the Year 2018 by StarDust
October 31st 18 02:30 PM
by [email protected] Go to last post
2 62
The astronomical importance of Samhain/Halloween by Gerald Kelleher
How to fit the Middle Eastern Judaeo-Christian festivals i with the Northern European festivals designed around astronomical milestones was always going to...
October 29th 18 12:00 PM
by Gerald Kelleher Go to last post
0 52
Climate from an astronomical perspective by Gerald Kelleher
The climate conditions of each planet ,apart from size,composition and distance from the Sun is due to inclination. The greater degree in inclination the more...
October 26th 18 08:50 PM
by Gerald Kelleher Go to last post
1 57
Manned Venus Mission? by Trawley Trash
On Tue, 16 Oct 2018 10:28:00 -0000 (UTC) Mike Collins wrote: Its a pity Brad Guths no longer here to read this. ...
October 25th 18 07:33 PM
by Trawley Trash Go to last post
4 90
Mercury rocket at the mercy of solar gravity well by RichA[_6_]
October 25th 18 06:49 PM
by Gerald Kelleher Go to last post
7 98
social media sources of amateur astronomy news; are there any? by walter lebowitz jr
Are there any Twitter or other social media accounts worth following for one interested in: 1) rapid notification of new comet discoveries or outbursts of...
October 24th 18 11:52 AM
by Martin Brown[_3_] Go to last post
4 71
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