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Lat/Long system for Mars continued by Gerald Kelleher
When Gemma Frisius first proposed the use of timekeeping to locate geographical locations on Earth in 1530, it took a number of centuries to get the scheme...
(Multi-page thread 1 2)
December 9th 18 01:16 PM
by Gerald Kelleher Go to last post
15 744
Sunrise on the Solstice by Gerald Kelleher
A myth has grown up around the notion that sunrise continues to occur later after the...
December 9th 18 08:41 AM
by Gerald Kelleher Go to last post
1 668
The "plague" of landscape-based astrophotos by RichA[_6_]
It's nice that Joe Average camera shooter is lured to look at Milky Way, but the tidal wave of these images begins to blur together with few standing out as...
December 8th 18 03:40 PM
by [email protected] Go to last post
4 329
Well, this scope takes the cake by RichA[_6_]
$3500 for 3 inches, and tiny sensor. https://vaonis.com/telescopes
December 8th 18 03:22 PM
by [email protected] Go to last post
4 787
Mars 2.2 mins apart from Neptune by RichA[_6_]
Not visible from N. America but maybe someone can get a shot elsewhere? http://www.astronomy.com/news/2018/12/mars-tonight
December 8th 18 07:08 AM
by Paul Schlyter[_3_] Go to last post
5 649
When things fail, people pick themselves up by Gerald Kelleher
https://www.youtube.com/watch?v=9XMfhKxwo2c It takes courage to take part in engineering or compositional astronomy as people learn and adapt.
December 6th 18 11:43 AM
by Gerald Kelleher Go to last post
2 724
Leonid and orbital proof by Gerald Kelleher
Sometimes imaging is so enchanting that no comment is the best course...
December 5th 18 09:16 PM
by Gerald Kelleher Go to last post
1 279
Amateur Don Machholz Discovers His 12th Comet! by StarDust
https://www.skyandtelescope.com/astronomy-news/observing-news/machholz-12th-comet/ Arizona comet hunter Don Machholz did it again! He discovered his 12th...
December 2nd 18 10:37 PM
by StarDust Go to last post
2 730
DSLR astro photography by StarDust
Canon Rebel 300D was used for astro photography by many 10-15 years ago. Some took out the IR filter or even installed cooling for the chip. I heard, 6 mega...
(Multi-page thread 1 2)
December 2nd 18 11:39 AM
by StarDust Go to last post
10 621
Astra geostationary satellites through telescope by StarDust
https://www.youtube.com/watch?v=rIesWBTUeiI It's called Geostationary Oscillation. Not all geo sats are directly above the equator, they can be slightly...
(Multi-page thread 1 2)
December 2nd 18 10:21 AM
by Gerald Kelleher Go to last post
10 696
#MeToo About to Send America into a New Dark Age by Quadibloc
Perhaps that is just a bit hyperbolic, but I was truly shocked and dismayed to encounter this news...
December 2nd 18 05:47 AM
by RichA[_6_] Go to last post
4 640
Walking back to climate research by Gerald Kelleher
Had Copernicus not made the compromise to predictive modelers, planetary climate would be discussed normally as the rate of change in surface condition across...
November 30th 18 09:34 PM
by Gerald Kelleher Go to last post
0 645
Here it is: the real impact of global warming by Quadibloc
An article on the BBC illustrates the kind of thing global warming is doing to people: https://www.bbc.com/news/world-asia-45715550 John Savard
(Multi-page thread 1 2 3)
November 30th 18 05:40 PM
by Martin Brown[_3_] Go to last post
27 584
timelapse from space by StarDust
https://www.youtube.com/watch?time_continue=255&v=nod7rUzIX8w Enjoy!!!!
(Multi-page thread 1 2)
November 29th 18 06:02 AM
by StarDust Go to last post
10 800
InSight probe lands on Mars. Was this the slowest-flying probeever? 6200mph? by RichA[_6_]
November 26th 18 11:19 PM
by Chris L Peterson Go to last post
2 597
Nexstar 90 mm f/10 refractor by StarDust
I got this cheap Nexstar achromat refractor, other night looked at the Moon and Mars with it, quiet good! At 110x power full Moon had a slight yellowish/green...
(Multi-page thread 1 2)
November 26th 18 10:53 PM
by StarDust Go to last post
18 467
Automatic Telescopic Tracking - WOW! by StarDust
https://www.youtube.com/watch?v=j1JM_OZnvMQ Pretty creepy though?
November 26th 18 01:50 AM
by StarDust Go to last post
5 343
Gravitational lens talk at Ontario Science Centre by RichA[_6_]
That place has been turned into a science fiasco what with the emphasis on anthropology, sociology and promoting (at length) the concept of man-made global...
November 25th 18 09:03 AM
by Gerald Kelleher Go to last post
1 410
Kepler's Somnium by Gerald Kelleher
https://books.google.ie/books?id=OdCJAS0eQ64C&pg=PA80&lpg#v=onepage&q&f=false It can be dismaying sometimes knowing how much of a tangle exists without any...
November 23rd 18 05:52 PM
by Quadibloc Go to last post
1 293
A Journey Around Earth in Real Time [4k] by StarDust
https://www.youtube.com/watch?v=Xjs6fnpPWy4 Enjoy, before humans **** it up!
November 23rd 18 03:30 PM
by StarDust Go to last post
6 274
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