Claim That Mars Is Closer Than It Has Been In 60,000-Years Is BAD Science — Worthy Of Trump.
Click to ENLARGE & read. From ‘EarthSkyNews’.
Look at the claim (above) for 2003 & then for 2018 & today.
I am more than willing to admit that We & Mars are rather close together today. I also have NO problems making claims about closeness as long as we don’t go BEYOND 400-years. That is it.
All bets are OFF for distances prior to that. We just don’t know. We don’t have any measurements. We are still trying to nail down orbital distances, shapes & periods.
60,000-years ago. WE HAVE NO CLUE.
Related posts:
Check Category ‘astronomy’.
“Irony Of Ironies”: Donald Trump Disclosed That He Had COVID-19 On “World SMILE Day”! SMILE.
Click to ENLARGE.
I am NOT making this up. Look it up.
Hope some of YOU already knew that yesterday was indeed “World Smile Day“. It was. SMILE.
What were the chances?
Dear Trump admitting he has COVID-19 on a day that people are supposed to SMILE.
Life is rich. Life is good. There could be a God.
SMILE.
SMILE.
SMILE.
Related posts:
Check Category ‘humor’ & search ‘Trump’ or ‘COVID’.
I Find This Claim Re. Universe Presumptuous & Possibly Poor Science.
Click to access original in “phys.org”.
I have NOT read the original paper, just the science media posts touting it.
I find it presumptuous. For a start we still insist that the Universe is continually expanding. If so, we don’t actually have a handle on how big it is. I also know that we, even with radio telescopes & Hubble, can only see a small part of the Universe. Then there is the claim that the Universe is infinite or close to it.
So, to make this claim based on the LITTLE bit of the Universe we know about seems irresponsible.
What irks me is the undue publicity these studies get, with the sensationalistic tabloid-headlines which do not give the average layman enough context.
I am willing to believe that Dark Matter & Dark Energy COULD account for a v. large part of the Universe. I am just uncomfortable when we try to get this precise based on what I consider to be a very small sampling of data.
Related posts:
Check Category ‘astronomy’.
2020 Autumnal (Fall) Equinox In New Hampshire Will Be On Tuesday, September 22, 9:30am (Eastern).
Click pictures to ENLARGE.
Attribution WILL be enforced.
Sunrise & Sunset Times for Concord, New Hampshire around the September Equinox.
(From Time-and-Date).
Note that daylight is NOT exactly 12 hours!
If anything we get closer to 12 hours 3 days later.
There is a reason for that. It is our latitude above the equator.
If we were closer to the equator it would have been closer to 12 hours.
See this explanation in Time-and-Date.
My equinox diagram.
Click to ENLARGE, study and admire.
Another ‘Time-and-Date‘ diagram annotated by I.
This is COOL. Created by Dr. James O’Donoghue.
Related Posts:
Search on ‘equinox’ for lots of other posts with tons of pictures & diagrams.
3 Comets, Supposedly Unrelated, All Rounded The Sun On August 5, 2020, Per NASA/ESA SOHO.
Click to ENLARGE.
From my “Comets” book
(shown below).
Click to ENLARGE & read here.
We, as yet, know very little about these three, supposedly unrelated, comets that rounded the Sun fairly close together.
Given their proximity one would normally think that they were 3 fragments from the same parent comet. Current consensus, though only based on minimal study, is that they are NOT fragments. Basically unrelated. Strange, but can happen.
Very small. Went undetected until spotted, after the fact, on SOHO images.
Have NOT been given MPC designations as yet because we don’t have enough observational data.
Just a heads up.
Click to access the Amazon listing. Thanks.
Related posts:
Check Category ‘astronomy’.
872 Comets Supposedly ‘Visible’ — All Telescopically; No Naked-Eye Anymore.
Click to ENLARGE.
My new Excel spreadsheet that enables me to analyze the data.
The raw list from the MPC.
Click to ENLARGE.
I wanted a good handle on this. Yes, the MPC maintains a list, BUT it is hard to analyze. So, I used that data to create one of my SPECIAL Excel spreadsheets. Now I can slice & dice the data at my will.
The MPC list has 872 valid entries! That is a LOT.
C/2020 F3 (NEOWISE) was the brightest — albeit based on a July 13, 2020, reading. Well, that is now way obsolete. The brightness of C/2020 F3 (NEOWISE) is NOW above ‘5’. It has to be ‘5’ or BELOW to be naked-eye visible. So, none of these 872 comets are naked-eye visible.
The next brightest, periodic, 2P/Encke, is at 10. That puts it even beyond binoculars.
So, a heads up. No point looking up. No naked-eye visible comets at present. SMILE.
That is why C/2020 F3 (NEOWISE) was so special.
Related posts:
Search ‘comets’.
Click to check-out.
3 New Comets Discovered In August 2020; 2 Periodics & Other With An Extremely High Eccentricity.
Click to ENLARGE.
These discoveries have just been confirmed — within the week, i.e., August 2, 2020.
Two, i.e., P/2020 O1 & P/2020 O3, are periodicals — in that they have orbital periods that are less than 200-years. Actually both of these have comparatively short orbital periods, i.e., 4.3 & 10 years. That also means that they don’t go very far from the Sun (or us). Also interesting that both these were discovered right after their most recent perihelions. Their next ones are way out.
Not so with the non-periodic, i.e., C/2020 O2. It is due to perihelion a year from now. Its orbital period has yet to be established. But, note its eccentricity. It is over ‘1’. Anything 1 or over has HIGH eccentricity by definition.
Related posts:
Search ‘comets’.
Click to check-out.
Jupiter & Saturn Stand Out Proud, Though Now Abandoned By The Moon — Wednesday, August 5, 2020.
Click to ENLARGE.
By now, I KNOW you know which is which. SMILE. Hard to miss. Moon, though up, is no longer in the picture as it was earlier in the week.
It was low down, below the tree line — way, way, way to the left, (like ⇐⇐⇐⇐⇐⇐⇐⇐⇐).
Related posts:
Category ‘astronomy’.
Click to check-out.
Tonight’s Full-Moon With Jupiter & Saturn To The Side — Monday, August 3, 2020.
Click to ENLARGE.
By now YOU must know the drill. Jupiter, the brighter of the two, is to the RIGHT. So, to the left, fainter (& smaller) is Saturn.
Got it?
The Moon is the big round thing.
Enjoy. Cheers.
Related posts:
Category ‘astronomy’.
Click to check-out.
Tonight’s Delightful Celestial Triangle; Near Full-Moon, Jupiter & Saturn — Saturday, August 1, 2020.
Click to ENLARGE.
Hard to miss. The near-full, Moon is brilliantly bright.
Jupiter, always the brighter (& bigger) is to the right. Saturn, smaller, to the left.
Go out & have a look.
It will be there tomorrow night — i.e., Sunday night — too.
Enjoy. Cheers.
Related posts:
Category ‘astronomy’.
Click to check-out.
Latest Guruge Books
"Comets"
Published May 2020.
eBook $2.00.
The ultimate comet book.
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Published March 2020.
paperback $19.00.
The handbook even for cardinals.
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"THINK A Day -- 2019"
Published November 2017.
eBook $0.99.
paperback $3.99.
Because THINKING is your greatest privilege.
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by Anura Guruge
Published October 2, 2017.
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For those too busy to meditate.
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by Anura Guruge
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If you have chronic, confounding pain.
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"Orgasms: 101 Facts & Trivia"
by Anura Guruge
Published April 22, 2015.
eBook $0.99.
paperback $7.25.
'A fancy that' look at human orgasms -- female & male.
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