Will we see a comet Elenin on SOHO images?

ESA / NASA / JPL

Since September 23, the comet Elenin may be visible in the field of view of spacecoronagraph C3, installed on the spacecraft SOHO. As  comet disintegrated or still disintegrating, there is a strong likelihood that we did not see anything or see it, but only after post processing of the original images (I recommend not work with JPG files, to avoid possible artifacts). On images comet will move from left to right, “under” the Sun. It may be seen as a fuzzy, hardly visible cloud. Stay tuned.

Share on FacebookTweet about this on TwitterShare on Google+Share on LinkedInShare on TumblrBuffer this pageEmail this to someone

MPC statistic for August – September 2011

The new monthly MPC circular released – MPC 75799 – 76268.

ISON-NM statistic for the previous month (August 9 – September 6):

Number of measurements: 12150

Measured objects: 2763

Discovered objects: 45*

Sky coverage: 320 sq. degrees

Observing nights**: 19

* – include NEA – 2011 QY37 and two Jovian trojans – 2011 QJ9, 2011 QQ47

** – include partial nights

Share on FacebookTweet about this on TwitterShare on Google+Share on LinkedInShare on TumblrBuffer this pageEmail this to someone

The ISON-NM observatory’s second near-earth asteroid

Pearson Prentice Hall, Inc.

August 27th at the ISON-NM Observatory, a new, second near-Earth asteroid was discovered, receiving the designation 2011 QY37. The object belongs to the Amor family and presents no hazard to the Earth. The minimum distance of its orbit to Earth’s is more than 39 million kilometers. The asteroid orbits on a rather extended orbit (eccentricity 0.51), with a period of 3.91 years.

Closest approach to the Earth will happen Sept 25th, when asteroid 2011 QY 37 passes 0.7 a.u. from our planet (104.7 million km). The next few years will be favorable for observing this object. In November 2015 it will reach 18th magnitude at a distance of 0.31 a.u. In January 2020, 2011 QY37 will be a little farther with a brightness of magnitude 18.5.

Although this is a preliminary prediction, the accuracy of the orbit will improve. We will be able to observe this object until the beginning of the next year. After that we will certainly return to this asteroid again.

Remember, our first near-Earth asteroid was discovered Sept. 10, 2010 and received the designation 2010 RN80. In addition, another near-Earth object is a second comet – P/2011 NO1, discovered at the ISON-NM Observatory in July of this year.

Share on FacebookTweet about this on TwitterShare on Google+Share on LinkedInShare on TumblrBuffer this pageEmail this to someone

The first radio observations of comet Elenin

NRAO

American radio astronomers report that did not detect any water coming from any remains of comet Elenin. Amy Lovell observed it for 7 hours on Sept 7 using the Green Bank Telescope (it is not yet in the Arecibo declination window) and did not detect any OH line above the noise level of 2.4 mJy. This puts a limit of a few times 10molecules/second on the gas production rate, which is about 100 times less than earlier predictions. This data may confirm disintegration proccess in comet’s nucleus which stareted on mid August. The next radio observations may be carry out on October by Arecibo radio observatory, of course if we will see comet Elenin on images from SOHO spacecraft.

Share on FacebookTweet about this on TwitterShare on Google+Share on LinkedInShare on TumblrBuffer this pageEmail this to someone

Countdown to perihelion

Perihelion passed.

Share on FacebookTweet about this on TwitterShare on Google+Share on LinkedInShare on TumblrBuffer this pageEmail this to someone
May 2020
M T W T F S S
« Apr    
 123
45678910
11121314151617
18192021222324
25262728293031