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carlos1986

February passing asteroid

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At the minute the met office reckons it's going to be cloudy untl 9pm on Friday for me, which is good if cutting it a little fine :)

How fast will this thing travel through my 32mm eyepiece? I'm considering taking a series of shots with my camera, if possible.

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will be getting the binos on this if the clouds clear up, will be easy to see in a pair of 15x70s i think, doesnt look like we'll be getting a clear night in most of the uk for it though :/

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The developers of sky safari have updated the plus and pro versions to be able to give accurate positions for near earth bodies because of this asteroid.

yer i got the update on skysafari plus :) and then fast forwarded it to friday night and there it was in the handle of the plough at 9:30pm. really hope the clouds clear up!

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Ideal object for medium-sized binoculars, like a 15x70.

See link in my previous post; it has positions marked every 10 minutes.

Are those heliocentric or geocentric elements that you used? If the former, expect the position to be out by a long way, especially if Starry Night (like most planetarium programs) uses a two-body solution (usually adequate, but not for something this close) instead of a numerically integrated/iterative one. (I have no idea which it uses.) Also, because of the parallax due to its closeness, you must run a topocentric, not geocentric, track.

There's some geocentric ephemerides, based on recent observations, at the bottom of http://www.projectpl...//temp/da14.htm

I ran through this recommended routine to get the data into Starry Night. Looking at the weather forecast it probably doesn't matter how far out it lol

I have noticed that on the link above they are now offering an alternative data entry method from a yahoo user group. When I tried that it pushed the asteroid further east BUT the asteroid track disappeared after about 21:00 ??

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I had a look at the this in starry night. The path of the astroid looked ok but the timing was way off, a good few hours ahead of what it should have been.

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I wouldnt know an asteroid passing by if it came up to me and slapped me in the face with a wet fish. If i saw it, i'd most likely think it was an ordinary satellite.

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There are a couple of parallel threads on this but so far as position and timing are concerned here are two links.

The Youtube video looks quite a way off!

http://stargazerslounge.com/topic/176441-asteroidcomet-15th-feb/page__st__20#entry1826709

http://www.jb.man.ac.uk/astronomy/nightsky/Feb15-13.jpg

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NASA Television will provide commentary starting at 2pm EST (11 a.m. PST) on Friday, Feb 15, during the close, but safe flyby of a small near-Earth asteroid named 2012 DA14

http://www.nasa.gov/...y_Coverage.html

NASASA Television will provide commentary starting at 2 p.m. EST (11 a.m. PST) on Friday, Feb. 15, during the close, but safe, flyby of a small near-Earth asteroid named 201

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Passing through the handle of the Plough 21:30 tommorrow is my best chance with a North facing back garden but astro panel is showing 75% cloud cover at that point so going to be extremely lucky to get a decent view - typically tonight looks like a great observing night. Think I'll take my chance and set up the scope for some observing tonight but just keep the Bins handy for Friday evening.

Typical

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Just received an email from Southern Stars.

We've updated SkySafari Plus and Pro to predict the motion of asteroids and comets using the same highly-acurate solar system physics as NASA and JPL. As a result, unlike any other virtual planetarium program, SkySafari Plus and Pro can pinpoint 2012 DA14 accurately in the sky. As far as we know, ours are the only mobile apps - and maybe the only desktop apps - that can do this.

Here's a six minute YouTube video showing SkySafari Pro on action.

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Just received an email from Southern Stars.

We've updated SkySafari Plus and Pro to predict the motion of asteroids and comets using the same highly-acurate solar system physics as NASA and JPL. As a result, unlike any other virtual planetarium program, SkySafari Plus and Pro can pinpoint 2012 DA14 accurately in the sky. As far as we know, ours are the only mobile apps - and maybe the only desktop apps - that can do this.

Here's a six minute YouTube video showing SkySafari Pro on action.

Hi thanks for this, I knew about the update but I didn't get an email, out of interest is there a setting somewhere requesting info by emails or something?

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Hi thanks for this, I knew about the update but I didn't get an email, out of interest is there a setting somewhere requesting info by emails or something?

just found out how, thanks :smiley:

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Hi thanks for this, I knew about the update but I didn't get an email, out of interest is there a setting somewhere requesting info by emails or something?

I purchased the Pro version from their website so they have my email address. Maybe I selected an option to receive newsletters or something at the time. Can't quite remember.

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this seems to be moving quickly. will it be likely to be seen moving against background stars at medium powers in a scope?

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It was on the radio this morning that if the sky is clear we should see it as a faint moving object in the sky, moving relatively fast.

I wonder if I can catch it with a long exposure photo... I'll try if the sky was clear

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Looking at it on Sky Safari it seems to moving at quite a pace. I reckon you'll see it moving against the stars even in binoculars.

Cheers,

Stu

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cool - cheers Stu - I hoped that would be the case. in my 26mm Nagler I should therefore at 61x and 1.3 degrees have a decent chance with my smaller scope - don't wanna risk moving the 16" yet after the hernia op!

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It was on the radio this morning
The bits on Radio 4 Today programme (from "science correspondent" Rebecca Morrelle) have been very misleading:

* It will be visible "half an hour either side of 7:30" : Wrong! In southern England, it will rise at about 7:50 (later in the north)

* It will be a case of "blink and you miss it" or be travelling "really fast" and will "dart across the sky": It's apparent motion will be over 100x slower than the ISS or an airliner at cruising altitude. It will cross the "handle" of the Plough asterism in Ursa Major at about 9:35pm.

Topocentric chart and ephemeris at http://binocularsky.com/binoc_transient.php (very similar to Richard Miles's one for the BAA, which was cited above -- Richard is about 40 miles NW of me, and the parallax difference already becomes apparent.

Decent, up-to-date, topocentric charts and ephemerides generated at Heavens above (enter your location):

http://www.heavens-above.com/

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