Newly discovered comet is likely interstellar visitor

**Newly discovered comet is likely interstellar visitor
This illustration depicts Comet C/2019 Q4's trajectory. Deemed a possible interstellar object, it will approach no closer to Earth than about 190 million miles (300 million kilometers). Credit: NASA/JPL-Caltech

A newly discovered comet has excited the astronomical community this week because it appears to have originated from outside the solar system. The object—designated C/2019 Q4 (Borisov) - was discovered on Aug. 30, 2019, by Gennady Borisov at the MARGO observatory in Nauchnij, Crimea. The official confirmation that comet C/2019 Q4 is an interstellar comet has not yet been made, but if it is interstellar, it would be only the second such object detected. The first, "Oumuamua, was observed and confirmed in October 2017.

The new comet, C/2019 Q4, is still inbound toward the Sun, but it will remain farther than the orbit of Mars and will approach no closer to Earth than about 190 million miles (300 million kilometers).

After the initial detections of the comet, Scout system, which is located at NASA's Jet Propulsion Laboratory in Pasadena, California, automatically flagged the as possibly being interstellar. Davide Farnocchia of NASA's Center for Near-Earth Object Studies at JPL worked with astronomers and the European Space Agency's Near-Earth Object Coordination Center in Frascati, Italy, to obtain additional observations. He then worked with the NASA-sponsored Minor Planet Center in Cambridge, Massachusetts, to estimate the comet's precise trajectory and determine whether it originated within our or came from elsewhere in the galaxy.

The comet is currently 260 million miles (420 million kilometers) from the Sun and will reach its closest point, or perihelion, on Dec. 8, 2019, at a distance of about 190 million miles (300 million kilometers).

**Newly discovered comet is likely interstellar visitor
Comet C/2019 Q4 as imaged by the Canada-France-Hawaii Telescope on Hawaii's Big Island on Sept. 10, 2019. Credit: Canada-France-Hawaii Telescope

"The comet's current velocity is high, about 93,000 mph [150,000 kph], which is well above the typical velocities of objects orbiting the Sun at that distance," said Farnocchia. "The indicates not only that the object likely originated from outside our solar system, but also that it will leave and head back to interstellar space."

Currently on an inbound trajectory, comet C/2019 Q4 is heading toward the inner solar system and will enter it on Oct. 26 from above at roughly a 40-degree angle relative to the ecliptic plane. That's the plane in which the Earth and planets orbit the Sun.

C/2019 Q4 was established as being cometary due to its fuzzy appearance, which indicates that the object has a central icy body that is producing a surrounding cloud of dust and particles as it approaches the Sun and heats up. Its location in the sky (as seen from Earth) places it near the Sun—an area of sky not usually scanned by the large ground-based asteroid surveys or NASA's asteroid-hunting NEOWISE spacecraft.

C/2019 Q4 can be seen with professional telescopes for months to come. "The object will peak in brightness in mid-December and continue to be observable with moderate-size telescopes until April 2020," said Farnocchia. "After that, it will only be observable with larger professional telescopes through October 2020."

Observations completed by Karen Meech and her team at the University of Hawaii indicate the comet nucleus is somewhere between 1.2 and 10 miles (2 and 16 kilometers) in diameter. Astronomers will continue collect observations to further characterize the 's physical properties (size, rotation, etc.) and also continue to better identify its trajectory.


Explore further

Small asteroid or comet 'visits' from beyond the solar system

More information: More information about asteroids and near-Earth objects can be found at cneos.jpl.nasa.gov
Citation: Newly discovered comet is likely interstellar visitor (2019, September 13) retrieved 15 September 2019 from https://phys.org/news/2019-09-newly-comet-interstellar-visitor.html
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Sep 13, 2019
"One object becomes a nova and a large number (millions) of others with the same parameters just go on the same way. ..
The only possible specificity is for that object (the errant objects, incoming from outside the Solar system) to arrive vertically onto one of the poles and to hit the opening of a cyclone that exists on the poles of stars. That way, it would get an opportunity to break into the interior of an object.
When discussing the vertical trajectories, it is necessary to point out that only the forces of attraction exist there, because an object creates the forces of repulsion in the horizontal direction only." http://www.scienc...80603.13

Sep 14, 2019
geeze duck, you are laying more rotten eggs in a single comment, than usual!

the polar axis us irrelevant to the gravitational attraction of a mass
any mass
ejection from the effects of gravitational attraction are temporary acceleration
past perihelion, the effect of the Sun's gravitational pulling back will be to reduce acceleration

repulsion is nonexistent

& how do we know this is a fact?
Oumuamua accelerated as it approached the Sun
then it decelerated as it flew away from the Sun & back into interstellar space

comet C/2019 Q4 entering the Solar System is accelerating as it crosses through the Sun's gravity field
which for this event is spherical, equal in all directions
the comet's course may be influenced by the ephemeris of the planetary orbits, especially Jupiter

for now, i am willing to accept that this comet may have originated outside our Solar System
however, i would not be shocked if it is proven to be a native comet on a very lengthy ballistic orbit of our Sun

Sep 14, 2019
@geeze rrwillsj
Your claims are for children (and knowledge). If your comment is correct, show the orbits of the planets around the poles of the stars. .
"Opposite to the process of rotation there is the approaching of an object to the poles of a central object, where there are no orbits created, but only collisions of the incoming objects with the central object. These objects also have a speed, just as the objects that approach straight or with an inclination towards the equator do, but these speeds neither create orbits.., nor there are observations to support such claims. If there is no rotation, there is also no orbit, no matter what the speed of the incoming object is."

Sep 14, 2019
cheesewhiz ducks
did i ruffle your feathers?

you need to immediately go explain to DOD Office for Round Filing Tirades From Looneytoons

that the Vandenberg AFB Launch Complex in California does not exist
& cannot be used to launch satellites into Polar orbits
cause?
because you say so?

well, that's a definite answer
that all of us can learn from...

yeah a fail, sorry dude
just not quite what you were expecting
to instruct all of us

however, the Mental Health students monitoring these comments can add your "wisdom" to their graduate thesis

so, you did accomplish some good this day, ducks

Sep 14, 2019
Clearly visible is your mind.
In talking, about natural bodies and their behavior, you now use artificial creation with artificial propulsion as a counter-evidence.
Your every new comment is your downfall in the living mud of your ignorance.
My first comment was only: "I told to you".
I wrote a few years ago about interstellar objects, when no one had any idea about it.
https://www.unexp...comments
"What are the dimensions of destruction and creation in the Universe?" Posted July 2, 2014
P.S: Duck (en) is not Duckss (german)

Sep 14, 2019
evidently your lack of original coherent ideas did not impress anybody all those years ago

& guess what?

ducksss you ain't impressing me, here & now

Sep 14, 2019
We should have probes wrapped in preservation paper in warehouses ready to run these things down while they're on their exit lap from the system.

Sep 14, 2019
We should have probes wrapped in preservation paper in warehouses ready to run these things down while they're on their exit lap from the system.


That is essentially what the Comet Interceptor mission will be. Whether it could catch something like this is doubtful though. Too fast, too far from Earth orbit.

Sep 14, 2019
This is the .....'second one' ....in history. Certainly ..someone...jests. If true, maybe we are moving thru a 'bad neighborhood' in space!

Sep 14, 2019
thanks osiris
for unveiling the reality for all of us
who think these two events as one-off "never before, never again!" celebrity headliners

the difference today?
is that we are now developing the technology to detect & observe these intruders, in real time

it will take major investments in inventing & fabricating orbital industrial infrastructure to finally get to the point of developing probes capable of rendezvousing with these "speed demons"

19 hours ago
"Cyclones are responsible for acceleration and deceleration of galactical and stellar rotations (as well as the death of stars)..
Acceleration and deceleration of the objects' rotation take place in two separate manners. ..
Independently of their mass, red, orange and yellow stars don't produce Novae, therefore we can be relaxed as our Sun will not turn into a Nova (and neither will the other ~99,15% of slowly-rotating stars of M, K, G, F types), but Sun can accelerate and decelerate its rotation, which can negatively or positively affect the planets and other objects in its orbit. Very small quantity of events results with classical explosions of a total destruction. .
doi: 10.18483 / ijSci.1908 2.3. The Processes That Lead to the Acceleration and Deceleration of an Object's Rotation Around Its Axis

10 hours ago
i hear the quacking,
i don't see the facting

so duckiepoo, here is a math quiz for you
the Earth's planetary mass is estimated to be about 5.97237×1024 kg

& the Mass of the Earth's atmosphere is estimated at about 5.15×1018 kg

the question: if a spiteful faerie decided to divert the Earth's atmosphere into a cyclonic event?
to what temperature Kelvin would that cyclone have to acheive to be energetic enough to push the Earth's planetary mass, one meter in any direction?

if your answer is "that you do not mean gaseous cyclones?"
please clearly describe the material mechanism you have imagined for your word choice of "cyclones"

& explain why no one else (outside of hollywood) has observed the cyclonic events you speculate?

9 hours ago
Notice the invisible electricity bending it toward the giant solar lightbulb. Just like a bugzapper. Do bugzappers work with gravity? Nope they do not.

5 hours ago
@ rrwillsj
".. and yellow stars don't produce Novae.."
Give it a try once concentrate on the subject without inventing it. Read the offered section of the article before commenting.
Do you know the difference between stars and Earth?

3 hours ago
@ rrwillsj
".. and yellow stars don't produce Novae.."
Give it a try once concentrate on the subject without inventing it. Read the offered section of the article before commenting.
Do you know the difference between stars and Earth?
Defacating doesnt take concentration per se, it just takes a certain amount of effort.

2 hours ago
oh deer otto
steershiting, once again
your nonsense all over the internet

since i can observe the bugzapper over my patio?
u can confirm that once a bug is zapped?

the little corpse falls to the ground

that phenomena causing the dead bugs to crashland?

is called gravity

there otto, now you can no longer claim ignorance of that fact

though i suppose you could keep insisting that what is attracting the dead bugs is that this planet is a giant vacuum cleaner sucking them down?

oh wait, that "cyclonic" delusion is already trademarked by the ducksss
but then none of you fakirs have been shy about plagiarizing other people's work

lunatics stealing crazy from other lunatics...

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