Tag Archives: Neptune

This Latest Interstellar Comet, 2I/Borisov, Is By NO Means The Only Comet To Spew Cyanide Gas. Quite Common!

by Anura Guruge


From ‘Google News’. It was BIG in … astronomy news.


Click to ENLARGE. From my ‘Comets 101’ book. Link below.


Yes, everybody is trying to cash in on this Interstellar Comet — supposedly the second we have discovered (albeit, both in the last 2-years). When I saw the headlines about cyanide it made me smile. I knew that cyanide was not uncommon in comets.

Recall Halley’s comet that comes around every 75-76 years. In the early 20th century there was a scare that folks would die from the cyanide that was emanating from its tail. Well nobody did.

So, please don’t get excited about this cyanide. It will NOT kill you or anybody else.


Has a ton of good information about comets.

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by Anura Guruge

TWO ‘Interstellar Comets’ In Less Than 2-Years — And We Have Never Seen ANY Before?

by Anura Guruge


Click to ENLARGE and study. See image below for origin — viz. JPL Small Body Database Browser.


Click to ENLARGE and study. JPL Small-Ball Database Browser.


Click to access ‘spaceweather.com’ and read the original.


Click to access my 2017 post.


I will grant that this new comet, C/2019 Q4 (Borisov), does have more of an intriguing orbital path than did C/2017 U1.

But, I am not willing to RUSH to the conclusion that it is interstellar — i.e., it did NOT originate in our own Oort cloud. Still very early days. That it is travelling too fast to be bound to the Sun is interesting.

I was not convinced about A/2017 U1 (ʻOumuamua) being interstellar and now others are joining in. SMILE. I do know some about comets.

All I am saying, for now, is don’t rush to a conclusion. Let’s study this puppy a bit more.

Definitely not going to be GREAT comet. It will be very far from the Sun. Twice as far as the Earth is to the Sun. So, unlikely that it will be very bright or sport a spectacular tail.

Just wanted to keep YOU in the loop. But, stay tuned.


Has a ton of good information about comets.

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by Anura Guruge

A/2017 U1 — Too Speculative To Claim That It Is ‘Interstellar’.

by Anura Guruge


Click to ENLARGE. From NASA/JPL @ http://www.jpl.nasa.gov.


Click to ENLARGE. Wikipedia: en.wikipedia.org/wiki/A/2017_U1


Definitely extremely interesting and intriguing. Wow. Orbital eccentricity of 1.1922! The greatest we have ever seen — the keywords here being ‘ever seen’. Comet ISON, that crashed and burned on Thanksgiving Day 2013 had an eccentricity of 1.0000015.

But, here is the deal with eccentricity. Anything over 1.0 means that the object will eventually leave our Solar System. That we know. But, what we cannot tell as yet is WHEN A/2017 U1 got that highly eccentric orbit. We just do NOT know — as yet. And maybe never will.

To claim that it must have originated OUTSIDE of our Solar System — is speculative. We do NOT have enough evidence.

NASA/JPL’s official statement confirms that: “So far, everything indicates this is likely an interstellar object, but more data would help to confirm it.” Note the ‘likely‘ and the part about ‘more data … for confirmation‘. That is exactly MY POINT and what I am trying to impress.

The claim that its orbit was NOT influenced by a close encounter with a planet — typically one of the BIG ones — is speculative. It could have been majorly torqued around by Uranus or Neptune. We don’t know.

I have a druthers that this is a very old comet — a periodic one at that, which on its last trip out, maybe 400 years ago got too close to a gas giant and had its orbit turned ‘upside down’.

We don’t know.

All I am stressing is do NOT jump to conclusions.

We know so little about what has happened in OUR Solar System and what is happening right now.

But, it is exciting.


Has a ton of good information about comets.

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by Anura Guruge

Neptune, Currently Our Furthest Planet, Was Discovered This Day 171-Years Ago; September 23, 1846.

by Anura Guruge


Extracts from my 2011 book
Devanee’s Book of Dwarf Planets“.

Click to ENLARGE and read here.



According to the lunatic fringe we are supposed to be hit by ‘Planet X’ this day — September 23, 2017. Did they realize that it was the anniversary of Neptune, the ‘Planet X‘ of its time, being discovered.

Neptune’s discovery, as I outlined it above, was pretty amazing and a testament to the cleverness of humans. Its existence was determined mathematically! That was 171-years ago. It still has me in awe.


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by Anura Guruge

The Bright ‘Stars’, Actually Planets, Over New Hampshire, December 2013 — Venus To Begin With, Then Jupiter.

Anura Guruge, June 8, 2013.
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by
Anura Guruge


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Click images to ENLARGE.

Underlying ‘star’ charts extracted from neave.com/planetarium/


venusdec2013II
Jupiterdec2013II
Jupiterdec2013IIW


Early on in the ‘evening’ close to the Moon, in the Southwest, is Venus
— very big and bright.

Two days ago we had the perfect ‘Moon trying to eat Venus’ conjunction
(the ‘crescent and star‘ symbol that appears on Islamic flags).

Later on at night, STARTING in the East,
it is Jupiter.

But, as we spin around, everything in the night sky moves from East to West.

So during the night Jupiter will swing from East to West —
as the two images above show.

Every night around 10:45, before starting my 3rd shift, I take the dogs out.

In the Winter I always look up, towards the East, to see Jupiter.

During the Winter, night-by-night, Jupiter will be, at the same time, say 10:45, further West.

That is because we are all going around the Sun …

Neptune, Uranus and Pluto are up there too — BUT, not naked eye visible. OK?