Latest topics
» POOFness for JAN 23: FBI RAID ON PHARMA (Next up.. Scamming Internet Panhandlers!)
Today at 6:00 am by Neighbor Dave

» NIBIRU News ~ British Sub Tries To Nuke Nibiru? and MORE
Today at 2:24 am by bs4ever

» ABE FROMAN ~ Gary Larrabee - Scam Peddler
Today at 12:12 am by RamblerNash

» Fukushima fallout in USA in 2017
Yesterday at 10:28 pm by PurpleSkyz

» It's the Banks, Or, Stop Being Stupid Part 22 by Anna von Reitz
Yesterday at 10:20 pm by MartyM

» Breaking News; Meteor falling from sky India January 23 2017 WOW!
Yesterday at 10:19 pm by PurpleSkyz

» UFO News ~ UFO's & Volcano Colima plus MORE
Yesterday at 10:10 pm by PurpleSkyz

» OH NO! Jerzy is going to sue us!!
Yesterday at 8:02 pm by RamblerNash

» You Are Infinite Potential - David Icke
Yesterday at 7:06 pm by PurpleSkyz

» Massive Movement To Overthrow George Soros Explodes In Macedonia
Yesterday at 7:03 pm by PurpleSkyz

»  Fireworks Ceremony At Donald Trump's Inauguration Spells 'USR' - United States Republic or United States Russia?
Yesterday at 3:13 pm by metech

» David Wilcock’s Comments on Ben Fulford’s Intel Post
Yesterday at 1:25 pm by PurpleSkyz

» GoldFish Report No. 72, Weekly POTUS Update with Kent Dunn
Yesterday at 1:21 pm by PurpleSkyz

» Essential Oils, Stress Relief and Women Marching....
Yesterday at 10:08 am by PurpleSkyz

» Success of Tomorrow depends on what you do today!
Yesterday at 9:55 am by PurpleSkyz

» Landa Global 1.22.17 Scam Update
Yesterday at 9:53 am by PurpleSkyz

» POOFness for JAN 22: HIGHER LOVE
Yesterday at 9:52 am by PurpleSkyz

» This Weeks RV/CGR News 2017:1/22-1/28
Yesterday at 9:50 am by PurpleSkyz

» Benjamin Fulford - 1/23/2017 Now that Trump is president the real horse trading begins
Yesterday at 8:15 am by PurpleSkyz

» NIBIRU News ~ NASA and Media Admit Nibiru is Coming and MORE
Yesterday at 8:09 am by PurpleSkyz

» Diary of Missing Scientist Sheds Light on Alien and UFO Enigma
Yesterday at 8:08 am by PurpleSkyz

» UFO News ~ UFO Appears From Bottom OF Cloud Over Mexico and MORE
Yesterday at 8:03 am by PurpleSkyz

» Volcano Goes Live In Hawaii!?
Yesterday at 8:01 am by PurpleSkyz

» Anonymous - Message to president Donald Trump
Sun Jan 22, 2017 9:43 pm by PurpleSkyz

» This Neurotransmitter Is The Key To Spirituality And Higher Consciousness
Sun Jan 22, 2017 9:37 pm by PurpleSkyz

You are not connected. Please login or register

Out Of Mind » SOLAR & PLANETARY ALERTS & INFO » ATMOSPHERIC CHANGES » Observations of comet P/2016 BA14 while making one of the closest-ever comet flybys of Earth

Observations of comet P/2016 BA14 while making one of the closest-ever comet flybys of Earth

View previous topic View next topic Go down  Message [Page 1 of 1]

PurpleSkyz


Admin
Observations of comet P/2016 BA14 while making one of the closest-ever comet flybys of Earth



Posted by The Watcher on March 25, 2016 in categories Comets and asteroids, Editors' picks, Near-Earth Objects





Astronomers were watching comet Pan-STARRS (P/2016 BA14) on March 22 as it made the third closest-ever comet flyby of Earth in recorded history. At the time of its closest approach, the comet was about 3.6 million km (2.2 million miles) away from the surface of our planet. The last time that any comet came closer to Earth than P/2016 BA14 was Lexell’s comet that flew by the Earth at a distance of 2.2 million kilometers (1.4 million miles) on July 1, 1770.  
Scientists using the Goldstone Solar System Radar in California's Mojave desert said that radar images indicate the comet is about 1 km (3 000 feet) in diameter. "We were able to obtain very detailed radar images of the comet nucleus over three nights around the time of closest approach," said Shantanu Naidu, a postdoctoral researcher at NASA's JPL, who works with the radar team and led the observations during the comet's flyby. "We can see surface features as small as 8 meters per pixel.

Comet P/2016 BA14. Credit: NASA/JPL-Caltech/GSSR
"The radar images show that the comet has an irregular shape: looks like a brick on one side and a pear on the other," Naidu said. "We can see quite a few signatures related to topographic features such as large flat regions, small concavities and ridges on the surface of the nucleus."
According to the new radar observations, comet P/2016 BA14 appears to spin around its axis once every 35 to 40 hours.
Vishnu Reddy, of the Planetary Science Institute (PSI), Tucson, Arizona, also observed comet P/2016 BA14. He was using the NASA Infrared Telescope Facility (IRTF) on Mauna Kea, Hawaii. Data collected (infrared spectra) indicate that the comet reflects less than 3 percent of the sunlight that falls on its surface. Comet nuclei are as dark as fresh asphalt. However, infrared spectra can often yield clues to the makeup of these primitive denizens of the solar system.
“We measured the spectral and thermal properties of the comet and found that the comet reflects between 2-3 percent of the sunlight that falls on it,” said Reddy. “This is typical for comets,” Reddy added. Based on its reflective properties, Reddy estimates the size of the comet to be between 600 meters and 1.2 kilometers  (0.4 miles and 0.75 miles) in diameter. 
Comet Pan-STARRS was originally discovered as an asteroid and later found to have cometary properties when astronomers realized its orbit is similar to another short period comet 252P/LINEAR, which also made a close flyby of the Earth at 3.3 million km (5.3 million kilometers) on March 21.








"It is an extremely rare opportunity to be able to study a pair of comets with historically close flybys.  Measuring the physical properties of both comets will help us understand the evolution of comets in general," said Jian-Yang Li, Senior Scientist at PSI. Li was observing 252P/LINEAR with the Hubble Space Telescope during its close encounter.
Featured image credit: NASA/JPL-Caltech/GSSR


Thanks to: http://thewatchers.adorraeli.com




 “Darkness cannot drive out darkness: only light can do that. 
H
ate cannot drive out hate: only love can do that.”
 Martin Luther King Jr


PurpleSkyz


Admin





 “Darkness cannot drive out darkness: only light can do that. 
H
ate cannot drive out hate: only love can do that.”
 Martin Luther King Jr


View previous topic View next topic Back to top  Message [Page 1 of 1]

Permissions in this forum:
You cannot reply to topics in this forum