Showing posts with label earth. Show all posts
Showing posts with label earth. Show all posts

Monday, May 20, 2013

Massive Asteroid (285263) 1998 QE2 approaches at a close but safe distance

Asteroid (285263) 1998 QE2 will pass by earth on May 31st 2013 at 14-15 Lunar distances. It is a massive 2.7 Kilometers wide (1.7 Miles). It is classed as a potentially hazardous asteroid as it's closest approach distance is less than 5% of the distance from the Earth to the Sun, ie. less than 0.05 AU (Astronomical units). This is it's closest approach for 200 years.

In spite of the naming convention, there is no connection between it and the Cruise Liner the QE2, although some in the media are having some fun measuring its width in end to end Ocean liners.

Note: there is no cause for alarm as the orbit has been well established for over a decade and posses no threat to earth in the next few centuries.

I photographed it tonight remotely from iTelescope.net's iT30 at Siding Spring (Q62). Its already very bright even though it won't be passing earth until the 31st. So its a great easy target for all the scopes.

Also using the Auto-Awesome feature of the new Google+ Photos, it automatically creates animated GIFs of similar photos and did a great job on 5 frames of the Asteroid images.

Sunday, January 13, 2013

99942 Apophis passes earth

Potentially hazardous asteroid 99942 Apophis passed earth this week allowing astronomers a window of opportunity to get some radar data (highly accurate) on it pass.

Astronomers from NASA, JPL and MPC announced that Apophis will miss the earth in 2036, something they were unable to definitely say previously.

I captured these images from the new iT30 0.5m Planewave at iTelescope.net's new SSO observatory.

Also there is a little bonus at the end of the video with a scan code for a free download of my signature shot of the Swan Nebula. Enjoy!

Also please vote in my poll on how bright will Comet ISON be in 2013/2014. (see right hand side bar). I am going to try and up the level of interaction and rate of posts this year, as I am getting so much great feedback from you all.

Happy New Year and a great 2013 to you all!!!

Saturday, June 16, 2012

Asteroid 2012 LZ1

Asteroid 2012 LZ1 was discovered by Robert McNaught on the evening of the 12 June 2012. An asteroid moving past earth at 12 lunar distances is not necessarily noteworthy even for a potentially hazardous object (MOID= < 0.05AU).

What was noteworthy is the professional surveys have already found over 90% of objects over 1 klm wide, this one at 500-700m is very large for a new discovery, basically because it is in a highly inclined orbit and was detected at -61 Declination in the southern hemisphere - ie in Robert's favourite comet hunting territory.

What does this mean - basically that it is on a highly inclined orbit, not un-heard of but not common. The inclination is why it would not have been picked up as part of the more than 90% of big asteroids already detected, more commonly along the plane of the solar system.

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