|
|
Amazing Astronomical Discovery by
Quadibloc
Our Solar System now has a fourth planet!
Yes, an astronomer encountered an unexpected bright object in his field
of view, and reported the discovery without...
|
|
6 |
388 |
|
|
What DST does by
Gerald Kelleher
The daily cycle is anchored to noon where sunrise and sunset are more or less symmetrical either side of this fixed astronomical event regardless of...
|
|
6 |
326 |
|
|
|
|
1 |
500 |
|
|
|
|
0 |
378 |
|
|
|
|
0 |
272 |
|
|
|
|
5 |
602 |
|
|
Where will it crash? by
StarDust
Where will it crash?
China confirmed in 2016 that it had lost contact with Tiangong-1 and could no longer control its behaviour, so we don't really know where...
|
|
5 |
315 |
|
|
Instruction for genuine teachers by
Gerald Kelleher
When Copernicus first proposed the resolution of direct/retrograde motion, he did not discriminate between the faster and slower moving planets seen from Earth...
|
|
1 |
402 |
|
|
John Harrison's Birthday by
Gerald Kelleher
The British had such an amazing engineering tradition and perhaps second to none including the technological era of the internet, computers and rocketry. The...
|
|
0 |
427 |
|
|
|
|
2 |
417 |
|
|
Tabby's Star Dimming Again by
Quadibloc
Saw this news item:
https://www.extremetech.com/extreme/266474-alien-megastructure-star-enters-another-dimming-phase
John Savard
( 1 2 3 ... Last Page)
|
|
39 |
1,205 |
|
|
Proving the Earth's orbital motion. by
Gerald Kelleher
The RA/Dec observers try their level best to equate circumpolar motion to daily rotation and that uses up the observation of the motion of the stars...
|
|
7 |
576 |
|
|
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...
|
|
0 |
550 |
|
|
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...
( 1 2 3 ... Last Page)
|
|
49 |
1,791 |
|
|
Space Junk's R Us. by
RichA[_6_]
http://money.cnn.com/2018/04/12/technology/vector-jim-cantrell-rocket-manufacturing/index.html
|
|
1 |
467 |
|
|
|
|
7 |
476 |
|
|
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...
|
|
2 |
425 |
|
|
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
( 1 2)
|
|
18 |
803 |
|
|
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...
|
|
7 |
537 |
|
|
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...
( 1 2 3)
|
|
29 |
1,092 |