Tag Archives: orbital path

The ‘Eccentricity’ Of New Comet C/2020 F8 (SWAN) Is Very High, But This Could Change With More Observations.

by Anura Guruge


Click to ENLARGE.


It has NOT been deemed Interstellar — i.e., originating from outside our Solar System.

But, the eccentricity — pretty damn close to ‘1.0’ — and the CRAZY 10 MILLION YEAR orbital period suggest that this is a strange comet — for NOW.

But, we only have 90 observations of it yet. Basically, early days.

With more observations the orbital path will get REFINED and will most likely change.

Just wanted to make sure you got that.


Related posts:
Check Category ‘astronomy’.


by Anura Guruge

JPL Small-Body Database Browser Has A New NON-Java ‘Orbit Diagram’ Viewer.

by Anura Guruge


Click to ENLARGE.

The announcement in ‘small type’.


In action. In this case with the 2018 GE3 asteroid that came very close to Earth on Sunday — with no warning at ALL.


I discovered this, to my utter joy, yesterday, when I was researching the rogue asteroid, 2018 GE3, that whizzed past Earth on Sunday with nary a notice. You can see the orbital diagram for that above, in the NEW orbital viewer.

It is NOT Java-based. That is so, so good. Running Java applets had become such a pain — with Web browsers, like Chrome, quite rightly, obsessing about the security vulnerabilities.

I had more or less stopped using the JPL Small-Body Database because the orbital viewer no longer worked.

And then … BINGO. Voila!

It is brilliant. Very nifty and has a built in screenshot capture as well as full-screen mode. You couldn’t ask for more.

Thank YOU, JPL. Good use of our taxpayer dollars.


Related posts:
Check Category ‘astronomy’.


by Anura Guruge

The Rogue ~300′ Asteroid That Came Way Too Close To Earth Yesterday, April 15, 2018!

by Anura Guruge


Click to ENLARGE.


Click to ENLARGE and read here. Wikipedia: en.wikipedia.org/wiki/2018_GE3


It could have been a heyday for the Nibiru freaks who are hoping (yet again) for a ‘pie in the skyEarth collision on April 23, 2018.

This was 8 days early.

We (and that I mean the ‘Catalina Sky Survey‘ in Tucson, Arizona) only discovered it 24-hours prior to that! Yes, you read that right. It came straight out of the blue just 24-hours before whizzing by us. I have always claimed that this is the problem we will have with asteroids and comets. What we have to worry about are the ones that sneak up upon us like this one.

NO WARNING!

It was pretty big. Around the same size as the meteoroid that exploded above Tunguska, Russia in June 1908. If this had hit Earth, or exploded in the atmosphere, it would NOT have wiped us all out. But, it would have caused a huge amount of devastation.

As it says above: “It is the largest known asteroid to ever pass that close to Earth in observational history!


Related posts:
Check Category ‘astronomy’.


by Anura Guruge

Shooting Stars Over New Hampshire The Next Few ‘Nights’. Very Active Geminid Meteor Shower Peaking December 13 – 14, 2013.

Anura Guruge, June 8, 2013.
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by
Anura Guruge


Related posts:
>>
Geminid Meteor Shower, 2012
>>Dec. 13, 2012.

>>
Bright ‘stars’ over N.H. — Dec. 5, 2013.
>> Comet Lovejoy — Dec. 6, 2013.
**** Check CATEGORY ‘Astronomy’ >>>>


Please check last year’s post on the Geminids for more detail.
Please search ‘meteor’ (>>>>) for tons of additional background on meteors and the other showers
including possible one, soon, from Comet ISON.

Where to look for the Geminids — over New Hampshire.

Jupiter is right there to help you.

Click to ENLARGE. Created by Anura Guruge just for you.

Click to ENLARGE. Created by Anura Guruge just for you.


NASA created orbital map of 39 Geminid 2013 major shooting stars
seen over the last few days.

Earth is the small blue dot at 1 o’clock.
The bigger yellow blob is the Sun.

All the debris, left behind by the asteroid,
is, of course, following the asteroid’s
orbital path around the Sun.

nasageminids2013map

Comet ISON – Now That It Lives On – In December 2013. Best Chance To Still See It, December 15 to Boxing Day.

Anura Guruge, June 8, 2013.ISONPrintCover150206
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by
Anura Guruge


Related posts:
**** Scroll down or do search, MULTIPLE ISON posts a day ****

**** Check my ISON blog.


Click here for orbital path.

Click here for assurance, from ME
(and boy have I been on TOP of this),

that orbital path did not change and
that comet is not a threat to Earth.


Click to ENLARGE.

Click to ENLARGE.

Watch a few minutes of THIS Comet ISON presentation on YouTube.

This image from my ‘Comet ISON for Kids’ book.


Comet ISON: Orbital Path Did NOT Change. No THREAT To Earth, Whatsoever. Repeat NOT Nibiru. Will NOT Be Nibiru.

Anura Guruge, June 8, 2013.ISONPrintCover150206
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by
Anura Guruge


Related posts:
**** Scroll down or do search, MULTIPLE ISON posts a day ****

**** Check my ISON blog.


Click here for orbital path.


Click to ENLARGE.

Click to ENLARGE.

For NASA video of Comet ISON rounding the Sun.

A few minutes of my presentation, on YouTube, talking about
Comet ISON not being a threat to Earth.

There is a 2nd ISON presentation on YouTube too.


Comet ISON: Where Is It Now — November 30, 2013, 2 Days After It Survived Perihelion. Here Is The Latest Orbital Path.

Anura Guruge, June 8, 2013.ISONPrintCover150206
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by
Anura Guruge


Related posts:
**** Scroll down or do search, MULTIPLE ISON posts a day ****

**** Check my ISON blog.


Click to access very educational, loads of fun, interactive NASA JPL ISON orbit animation.

Click to ENLARGE.

Click here to access
very educational, loads of fun, interactive NASA JPL ISON orbit animation.


Comet ISON Will Round The Sun At 18:45 GMT (UTC) Today, Thanksgiving — That Is 1:45 p.m. Eastern (U.S.). Watch On NASA.

Anura Guruge, June 8, 2013.ISONPrintCover150206
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by
Anura Guruge


Related posts:
>> ISON streaking towards Sun
>> 
— Nov. 27, 2013.
>> ISON live on SOHO
>>
— Nov. 26, 2013.
++++ Search on ‘Comet ISON’ on sidebar for other posts >>>>
**** Check my ISON blog.


What the actual orbital path looks like right now,
Thursday, November 28, 2013 — U.S. Thanksgiving.

It is now travelling close to
60 miles per second!

So it is covering a lot of distance very quickly.

From NASA JPL 'database'. Click to access. Interactive.

From NASA JPL ‘database’. Click to access. Interactive.


NASA provided chart of the perihelion timing.

NASA provided perihelion chart from their Website. Click to access.

NASA provided perihelion chart from their Website. Click to access.


Comet C/2011 L4 (Pan-STARRS): Where To Spot In The Northern Skies.

Dec2013x125

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by
Anura Guruge


Related posts:
1/ Naked Eye Visible … — Mar. 6, 2013.
2/ Comet First of two BIG 2013 comets: C/2011 L4 (Pan-STARRS)
>>Mar. 5, 2013.


Comet C/2011 L4 (PANSTARRS) will be visible to Northern hemisphere observers near the cresent moon on March 12th. This ‘map’ provided by NASA. Click to ENLARGE.


Another image from NASA, but this seen down-under in Australia. Click to ENLARGE. To see it as they saw it in Oz, you will have to stand on your head or turn your monitor upside down.


Another image, again down under. Now you know the drill. Click to ENLARGE. Somehow rotate the image to get the Australian view.


Perihelion (closest approach to the Sun) is today, March 10, 2013. As it turns around the Sun it also crosses the celestial equator, moving from the southern skies to the ones that really count — the northern skies, i.e., US. People are already seeing it — those close to the equator, such as my brethren in Sri Lanka getting early dibs.

As I have said before March 12 & 13 should be particularly good since the crescent Moon will provide a good reference. Try and get to a high point, like a small hill, so that you can see over trees — if you live in the country.

Enjoy. I will try and keep you posted.

Here are two useful links: NASA & Space Weather.

Comet C/2011 L4 (Pan-STARRS) Should Be Naked Eye Visible March 12 & 13, 2013, At Sunset, Near Crescent Moon.

Dec2013x125

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by
Anura Guruge


C/2011 L4 (Pan-STARRS) over South Africa — last week.




C/2011 L4 as indicated by its official designation was discovered in 2011, on June 6, 2011.

It was discovered ‘robotically’ [i.e., by automated, computer software scanning digital images] by the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS) initiative whose telescopes are located at the summit of Mount Haleakala on Maui, Hawaii. Hence the parenthetical name ‘Pan-STARRS’.

Calling it Comet Pan-STARRS is wrong and meaningless!

The Pan-STARRS program, an automated survey of the sky, discovers comets at a rapid rate. There are many, many comets with the parenthetical name ‘Pan-STARRS’ — this name denoting the discoverer. It is only real and unique name is C/2011 L4. Comet’s can only be named after a person involved with its discovery (or the calculation of its orbit). Comets such as this one, discovered by computer software, are not assigned a name of a person. And NO, you cannot buy its name.

Alas, it won’t be very bright. So, provided we have clear skies, next Tuesday and Wednesday, close to the Moon — around sunset.