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North Korea to become magnet for amateur astronomers? by Chris.B[_3_]
With the previously closed country opening up to exploitation the dark skies could attract amateur...
(Multi-page thread 1 2)
Today 05:46 PM
by Chris.B[_3_] Go to last post
13 77
China launch will prep for Moon landing by StarDust
http://www.bbc.com/news/science-environment-44198673 China has launched a relay satellite to prepare for a lunar rover mission planned for later in the...
(Multi-page thread 1 2)
Today 03:11 PM
by Mike Collins[_4_] Go to last post
15 29
Questar 5 specifications released, mounting specs later? by RichA[_6_]
Curious to see if they produce a modernized, electronicized mount or just a regular none Goto unit, perhaps with DC...
Today 12:47 PM
by Quadibloc Go to last post
2 17
It took NASA...four years to design a drone. by RichA[_6_]
http://www.bbc.com/news/world-us-canada-44090509
(Multi-page thread 1 2 3)
Today 01:16 AM
by RichA[_6_] Go to last post
22 90
Some More Light Pollution by Quadibloc
Intended to be in a good cause... http://mashable.com/2018/01/24/rocket-lab-humanity-star-satellite-brightest-object/#yQ.3YRxqwqqZ John Savard
May 22nd 18 11:32 AM
by Mike Collins[_4_] Go to last post
2 82
Illusory loops vs actual loops. by Gerald Kelleher
The geocentric astronomers since the time of the Greeks observed that while the Sun appeared to travel through the background stars directly, all planets would...
(Multi-page thread 1 2 3)
May 22nd 18 06:46 AM
by Chris.B[_3_] Go to last post
25 80
KÄ«lauea by Gerald Kelleher
This part of the Earth's geology brings it closest to that of Venus as the volcano itself is far from crustal boundaries where most of the evolutionary geology...
May 16th 18 07:21 AM
by Chris.B[_3_] Go to last post
2 40
Flat Earther and AGW Denier to head nasa into obscurity. by Chris.B[_3_]
Pavlov republicans vote for trumpet's nomination. Any plans to return to kindergarten for basic science lessons and management classes described as "fake...
(Multi-page thread 1 2 3 ... Last Page)
May 10th 18 12:33 PM
by Gary Harnagel Go to last post
355 628
Full moon at the South Pole by Gerald Kelleher
https://www.moongiant.com/phase/today/ https://www.usap.gov/videoclipsandmaps/spwebcam.cfm What a difference the diminishing light of the moon makes as...
May 10th 18 06:31 AM
by Gerald Kelleher Go to last post
7 62
First day of summer by Gerald Kelleher
The Celtic tradition broke the year into the light half which starts half way between Equinox and Solstice on May 1st (closest date) while the dark half began...
May 2nd 18 08:27 AM
by Gerald Kelleher Go to last post
1 78
Questar 5 specifications released: by RichA[_6_]
Interesting. An in-baffle tube field flattener. I'd probably have made it outboard and a f-stop reducer, but this still looks good. Figure maybe $5000 for the...
April 30th 18 12:51 AM
by Davoud[_1_] Go to last post
5 315
NASA is robbing the Russians blind by Quadibloc
A Verge article about delays in the publication of installments of _A Song of Ice and Fire_ says Russia charges $80 million per astronaut ferried to the...
April 29th 18 07:07 AM
by Chris.B[_3_] Go to last post
8 67
Actual time lapse vs distorted time lapse by Gerald Kelleher
The daily motion of the surface across the fully illuminated face on the September Equinox follows, at least from an orbital perspective, a Northwest to...
(Multi-page thread 1 2 3)
April 28th 18 09:34 AM
by Gerald Kelleher Go to last post
29 229
Averaging and the Equation of Time by Gerald Kelleher
Here take notice, that the Sun or the Earth passeth the 12. Signes, or makes an entire revolution in the Ecliptick in 365 days, 5 hours 49 min. or there...
April 23rd 18 09:12 PM
by Gerald Kelleher Go to last post
7 84
Hey, hook this up to a scope! by RichA[_6_]
https://www.dpreview.com/news/9846474491/you-can-own-the-world-s-first-single-shot-8-10-digital-camera-for-106-000
(Multi-page thread 1 2)
April 23rd 18 02:23 AM
by Davoud[_1_] Go to last post
18 111
We need new nomenclature by RichA[_6_]
I read a review of the ugly Baader Morpheus eyepieces on cloudynights and something stuck me. The reviewer used the term, "diffraction rings" (of a star)when...
April 17th 18 01:37 AM
by Razzmatazz Go to last post
2 87
NASA slips up! The TRUTH is finally revealed! by Quadibloc
Look at this image describing Exploration Mission-1: https://www.nasa.gov/image-feature/exploration-mission-1-map and the similar image about Exploration...
April 17th 18 12:29 AM
by Quadibloc Go to last post
7 95
Space Junk's R Us. by RichA[_6_]
http://money.cnn.com/2018/04/12/technology/vector-jim-cantrell-rocket-manufacturing/index.html
April 14th 18 07:47 AM
by Chris.B[_3_] Go to last post
1 95
Polar astronomy by Gerald Kelleher
Lots of innovations to consider during the period of polar twilight after the March Equinox at the South Pole station. The same principles apply to polar...
(Multi-page thread 1 2 3 ... Last Page)
April 9th 18 10:57 AM
by Quadibloc Go to last post
49 422
Radio Meteor Obs. Bull. March 2018 by Chris Steyaert
Radio Meteor Observation Bulletin No. 296 of March 2018 (58 K) is available now as http://www.rmob.org/rmobtext/rmob1803.txt More information and the visual...
April 5th 18 07:29 PM
by Chris Steyaert Go to last post
0 117
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