A good place to get updated coordinates is JPL Horizons website which lets you generate an accurate ephemeris for your exact longitude latitude and elevation. Excellent information… many thanks to David for sharing with us! You can read the full article on his website here. And if you do witness the pass of this asteroid and somehow manage to get some photos of it, you can share them on the Universe Today Flickr group … they may be featured in an upcoming article!
Please fix or preferably remove this widget. I agree. This is extremely annoying. If it would actually remember my preference for it to leave me the hell alone while I read the article, I could live with it. Constantly having a window in the lower right corner of the screen growing and shrinking every minute or so is the annoyance.
That should relieve your annoyance! It seems to block that annoyance yes, it annoys! Yo William, what browser are you using? Simple and clean website design is always best. University today keeps moving in the wrong direction with this. I dislike the widget a lot.
After so many days of reporting that that things i frustrating annoying, it is still there. It always recommends things that I already ready! This indicates a dark, carbonaceous surface consistent with a previous classification as C-type object. Here the reconstructed temperature distribution of the asteroid is shown, where the model was based Size and thermal performance were determined from the PACS observations.
The thermal properties seem to be very similar to the ones found for Itokawa, a small body visited by the Japanese mission Hayabusa , which turned out to be a rubble pile. Our findings indicate that YU55 might also be a loose assembly of boulders, pebbles and dust and not a single monolithic rock in space. The Herschel observations also help to improve the orbit calculations of YU5.
The minor planet does not pose a danger for Earth, at least within the next few decades, for which we can predict its orbit with high accuracy. In this little asteroid will have a close encounter with Venus at km , afterwards the orbit is not perfectly predictable and it is unlikely that YU55 will cross the Moon's orbit again in In case of YU55 we can rest assured that we are safe for the next few decades.
And, instead of working out deflection concepts, we can concentrate on the more scientific aspects of characterising this exotic and very interesting minor body. We're tracking the asteroid daily, so we know how close it's going to come to Earth on Tuesday with exquisite precision. But if you extrapolate that orbit out 18 years, the uncertainties add up. We can't tell exactly how close it will come to Venus in , and a very small variation in that distance would have a relatively large effect on how much Venus alters the orbit.
FYI, the detailed finder chart linked in the online article is missing a phrase in the instructions on how to offset from Kansas City. The print article in the Nov issue says at the end of the instructions: "Then copy the minute tick marks, noting your offset from Kansas City on the U.
I mistakely said "less" when I should have said "more": while Thanks for the reply, Kelly B and thanks for overlooking this error! Maybe by there'll be a craft orbiting Venus that can do radar measurements a Magellan successor, as it were. Can somebody please help me!
I want to observe the asteroid Nov 8th but I really find that the information is either vague or maybe I just cant see it because of my geographic location, I dont know. I would really appreciate if somebody could help me so that I could view it when the Sun goes down.
If somebody could give me a reference point and time. For example, I always can find Cassiopeia and Orion this month, so if someone could tell me where to look relative to one of these at say midnight Eastern Standard Time. I believe we are at the 42 parallel in the northern hemisphere.
Thank you for your time and help! Everyone talks about what a disaster it would be if an asteroid hit the earth. Well, we need to worry about the moon too. How big would an object have to be to alter the moon's orbit? The moon keeps us steady around the sun.
Now there's a doomsday scenario, only slower. Exciting stuff none the less. From an orbital dynamics standpoint NEAs are basically massless. The uncertainty region is magnified with every significant close approach to a major body.
After we get radar measurements during the Earth approach we will know the exact distance and speed of the asteroid post-Earth close approach, and as a result we will have a much more precise solution for the Venus passage and the Earth passage. Everything i've read on the subject says an object is space must be, at least, somewhere between and miles in diameter for its gravity to be strong enough to pull it into a sphere.
The asteroid is said to be meters in diameter. How is it that so closely resembles a sphere? Chicknlady's comment about an asteroid impact causing a Lunar Orbital change raises another question. What if an asteroid or other large object struck the Moon? What the ejecta from the impact send a volley of Lunar material hurtling toward the Earth?
Is it possible for any part of this asteroid to break apart from the main body? Is there any possibility for a smaller piece of YU55 to hurl toward our moon or our planet? I suspect that the image obtained from the flyby is not a true image of how the asteroid would look in the sky, but a plot of returned signal strength plotted against time increasing as we go down and frequency left to right.
Increasing time will represent returns initially from the part of the asteroid nearest us and then extending towards the limb in all directions. Increasing frequency will represent returns from the receding limb extending across the face to the approaching limb. Bright reflective features on the asteroid will show up in the radar image, but you can't unambiguously locate them on the asteroid. I recall back in the s, before they did radar interferometry, radar images like this were made of Venus.
This time, of course, with the added antennas at Goldstone and elsewhere acting as an interferometer, a true image of the asteroid will be obtained. Hi to everyone! Im from Portugal and im new here and i would like that someone help me because i would like to see the yu55 here in Portugal.
Could someone tell me what time of the 8 of november will pass here and where i should looking? Thank you very much!! To prepare for observing in advance, you need to set the program time in RTGUI to a few hours before you will begin observing the asteroid say, hours local on Nov. Make sure you check the box "Near Earth Object," that way you can use a non-real time starting time.
For the name enter YU55, and press OK. You'll download a file from the Minor Planet Center, with both an object name and a starting time in the filename. This file can only be used during the hour period you specify, but you will have minute-by-minute positions for the asteroid that will update automatically, and you can use your Goto function at any time if you connect your telescope to your computer.
Probably you will be able to see the asteroid moving against the background of stars. Why is the radar image of asteroid YU55 cresent shaped, as if lit up by the sun? Me encuentro en Lima Peru , quisiera saber hacia donde tengo que dirigir el telescopio para poder apreciar el asteroide yu Gracias por la ayuda. If YU55 passes so close to both Earth and Venus, it might be on or evolving towards the Hoohmann minimum energy trajectory. Hohmann invented this trajectory to get from one planet to another.
0コメント