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2020 Autumnal (Fall) Equinox In New Hampshire Will Be On Tuesday, September 22, 9:30am (Eastern).

by Anura Guruge


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.


by Anura Guruge

3 Comets, Supposedly Unrelated, All Rounded The Sun On August 5, 2020, Per NASA/ESA SOHO.

by Anura Guruge


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’.


by Anura Guruge

872 Comets Supposedly ‘Visible’ — All Telescopically; No Naked-Eye Anymore.

by Anura Guruge


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.

by Anura Guruge


3 New Comets Discovered In August 2020; 2 Periodics & Other With An Extremely High Eccentricity.

by Anura Guruge


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.

by Anura Guruge


 

Tonight’s Delightful Celestial Triangle; Near Full-Moon, Jupiter & Saturn — Saturday, August 1, 2020.

by Anura Guruge


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.

by Anura Guruge


 

Brilliant Saturn, Jupiter & Moon Conjunction.

by Anura Guruge


Click to ENLARGE.

From tonight.


The Key to ABOVE ⇑ ⇑ ⇑ ⇑


From two nights ago.


Clear as it can get at night. Brilliant.

Jupiter & Saturn — in line — clearly demonstrating the ecliptic.

The Moon just adds to the brilliance.

Can’t miss. Just go out & look up. The 3 most brilliant things up there. SMILE.


Related posts:
Category ‘astronomy.


Click to check-out.

by Anura Guruge


 

With Comet NEOWISE (i.e., C/2020 F3) Fading, There Is NOTHING New On The Horizon.

by Anura Guruge


Click to ENLARGE.

BOTH from: http://www.aerith.net/



NOW you may begin to appreciate why I, for one, was SO EXCITED (& animated) by C/2020 F3 (NEOWISE). Our 1st genuine naked-eye comet in 23-years!

It could be another 23 before we get another one — and, I, for one, will not be around for that.

Hopefully, it won’t be that long.

That is the glory of comets. We could discover a new one tonight that proves to be a great. With comets you never know.

I have started doing my own research — putting together an Excel spreadsheet. I am NOT seeing anything that looks promising. I will, of course, keep you posted.

Keep your toes crossed. We need all the luck we can muster,


Related posts:
Search ‘comets.


Click to check-out.

by Anura Guruge


 

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