Category: meteors


March 31, 2014

Organic Ejecta –Clues to Violent Events in the History of the Universe

 

Pinwheel_Spitzer

 

Exploding stars, random impacts involving comets and meteorites, and even near misses between two bodies can create regions of great heat and high pressure. Researchers from Imperial College London have now developed a method for analysing the pressure experienced by tiny samples of organic material that may have been ejected from dying stars before making a long journey through the cosmos. The researchers have investigated a type of aromatic hydrocarbon called dimethylnaphthalene, which should enable them to identify violent events in the history of the universe.

The team also believe that their new technique could be applied on Mars, potentially using the existing technology on-board roving laboratories such as the one on the Mars Science Laboratory Mission to glean information about sources of organic matter on the red planet. Recognising the pressures recorded in the aromatic hydrocarbons can help to reveal whether it came from processes generated from ancient living organisms.Samples of dimethylnaphthalene are found in meteorites. Previously, scientists have only had the ability to investigate how they have been affected by heat. The Imperial researchers say their method for detecting periods when dimethylnaphthalenes have experienced high pressure will now allow for a much more comprehensive analysis of organic materials.

 

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Earth Watch Report  -  Space

Image Source  NASA

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RSOE EDIS

 Earth approaching objects (objects that are known in the next 30 days)

 

Object Name Apporach Date Left AU Distance LD Distance Estimated Diameter* Relative Velocity
(2012 RJ15) 11th March 2014 0 day(s) 0.1119 43.5 51 m – 110 m 13.72 km/s 49392 km/h
(2002 SZ) 11th March 2014 0 day(s) 0.1059 41.2 220 m – 490 m 19.28 km/s 69408 km/h
(2012 RJ15) 11th March 2014 0 day(s) 0.1119 43.5 51 m – 110 m 13.72 km/s 49392 km/h
(2002 SZ) 11th March 2014 0 day(s) 0.1059 41.2 220 m – 490 m 19.28 km/s 69408 km/h
(2001 SQ3) 11th March 2014 0 day(s) 0.1871 72.8 130 m – 280 m 18.26 km/s 65736 km/h
(2013 UX2) 12th March 2014 1 day(s) 0.1482 57.7 3.8 m – 8.6 m 2.94 km/s 10584 km/h
(2010 FR9) 14th March 2014 3 day(s) 0.1210 47.1 16 m – 36 m 10.80 km/s 38880 km/h
(2014 AY28) 16th March 2014 5 day(s) 0.0429 16.7 120 m – 270 m 5.37 km/s 19332 km/h
(2005 FN) 17th March 2014 6 day(s) 0.0812 31.6 11 m – 25 m 8.09 km/s 29124 km/h
(2012 XB112) 17th March 2014 6 day(s) 0.1175 45.7 2.5 m 4.02 km/s 14471.999999999998 km/h
(2013 WT44) 17th March 2014 6 day(s) 0.0327 12.7 320 m – 710 m 11.13 km/s 40068 km/h
(2004 YC) 19th March 2014 8 day(s) 0.1054 41.0 20 m – 45 m 9.35 km/s 33660 km/h
(2003 YX1) 20th March 2014 9 day(s) 0.1654 64.4 180 m – 390 m 11.76 km/s 42336 km/h
322756 (2001 CK32) 20th March 2014 9 day(s) 0.1465 57.0 440 m – 990 m 9.06 km/s 32616 km/h
(2011 HH) 20th March 2014 9 day(s) 0.1016 39.5 23 m – 52 m 5.04 km/s 18144 km/h
(2012 FK15) 21st March 2014 10 day(s) 0.1495 58.2 13 m – 30 m 13.66 km/s 49176 km/h
(2003 HT42) 22nd March 2014 11 day(s) 0.0942 36.6 29 m – 65 m 7.54 km/s 27144 km/h
325102 (2008 EY5) 23rd March 2014 12 day(s) 0.0789 30.7 250 m – 570 m 12.89 km/s 46404 km/h
(2013 GW68) 24th March 2014 13 day(s) 0.1950 75.9 110 m – 240 m 16.74 km/s 60263.99999999999 km/h
(2011 EN40) 24th March 2014 13 day(s) 0.1662 64.7 220 m – 490 m 27.82 km/s 100152 km/h
(2013 FD8) 25th March 2014 14 day(s) 0.0851 33.1 19 m – 43 m 11.55 km/s 41580 km/h
143649 (2003 QQ47) 25th March 2014 14 day(s) 0.1283 49.9 880 m – 2.0 km 32.41 km/s 116675.99999999999 km/h
(2012 FM35) 27th March 2014 16 day(s) 0.1916 74.6 9.2 m – 21 m 8.84 km/s 31824 km/h
(2011 FT53) 27th March 2014 16 day(s) 0.1007 39.2 23 m – 52 m 12.36 km/s 44496 km/h
(2012 EA) 29th March 2014 18 day(s) 0.0356 13.9 11 m – 25 m 6.00 km/s 21600 km/h
(2009 FW25) 29th March 2014 18 day(s) 0.0715 27.8 56 m – 120 m 12.34 km/s 44424 km/h
(2009 FD) 31st March 2014 20 day(s) 0.1009 39.3 100 m – 230 m 12.89 km/s 46404 km/h
(2009 SA100) 31st March 2014 20 day(s) 0.0445 17.3 44 m – 99 m 7.99 km/s 28764 km/h
(2010 GD35) 31st March 2014 20 day(s) 0.0489 19.0 33 m – 75 m 11.07 km/s 39852 km/h
(2009 CT) 31st March 2014 20 day(s) 0.1984 77.2 320 m – 710 m 13.35 km/s 48060 km/h
243566 (1995 SA) 01st April 2014 21 day(s) 0.1879 73.1 970 m – 2.2 km 14.22 km/s 51192 km/h
(2001 QC34) 01st April 2014 21 day(s) 0.1082 42.1 250 m – 570 m 4.78 km/s 17208 km/h
(2013 TT5) 03rd April 2014 23 day(s) 0.0959 37.3 15 m – 33 m 4.04 km/s 14544 km/h
86878 (2000 HD24) 03rd April 2014 23 day(s) 0.1084 42.2 800 m – 1.8 km 20.44 km/s 73584 km/h
(2010 GC35) 06th April 2014 26 day(s) 0.0677 26.3 31 m – 68 m 4.59 km/s 16524 km/h
(2008 OC6) 07th April 2014 27 day(s) 0.1949 75.8 530 m – 1.2 km 14.34 km/s 51624 km/h
330659 (2008 GG2) 09th April 2014 29 day(s) 0.1450 56.4 77 m – 170 m 7.16 km/s 25776 km/h
1 AU = ~150 million kilometers,1 LD = Lunar Distance = ~384,000 kilometers Source: NASA-NEO

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Space Weather

by Dr. Tony Phillips.

 All Sky Fireball Network

Every night, a network of NASA all-sky cameras scans the skies above the United States for meteoritic fireballs. Automated software maintained by NASA’s Meteoroid Environment Office calculates their orbits, velocity, penetration depth in Earth’s atmosphere and many other characteristics. Daily results are presented here on Spaceweather.com.

On Mar. 10, 2014, the network reported 3 fireballs.
(3 sporadics)

In this diagram of the inner solar system, all of the fireball orbits intersect at a single point–Earth. The orbits are color-coded by velocity, from slow (red) to fast (blue). [Larger image] [movies]

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Earth Watch Report  -  Space

Image Source  NASA

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  Earth approaching objects (objects that are known in the next 30 days)

Object Name Apporach Date Left AU Distance LD Distance Estimated Diameter* Relative Velocity
(2013 BZ45) 02nd February 2014 1 day(s) 0.0688 26.8 110 m – 250 m 8.98 km/s 32328 km/h
(2009 CG) 04th February 2014 3 day(s) 0.1311 51.0 70 m – 160 m 12.93 km/s 46548 km/h
(2011 MW1) 05th February 2014 4 day(s) 0.1017 39.6 92 m – 210 m 11.06 km/s 39816 km/h
348306 (2005 AY28) 06th February 2014 5 day(s) 0.0394 15.3 130 m – 300 m 17.06 km/s 61415.99999999999 km/h
(2004 AS1) 08th February 2014 7 day(s) 0.1286 50.0 210 m – 470 m 12.85 km/s 46260 km/h
(2006 DP14) 09th February 2014 8 day(s) 0.0160 6.2 460 m – 1.0 km 27.13 km/s 97668 km/h
(2013 BS45) 10th February 2014 9 day(s) 0.0317 12.3 18 m – 39 m 3.76 km/s 13536 km/h
(2007 BG) 13th February 2014 12 day(s) 0.1476 57.5 330 m – 750 m 7.99 km/s 28764 km/h
(2008 BP16) 16th February 2014 15 day(s) 0.1672 65.1 120 m – 270 m 19.78 km/s 71208 km/h
(2000 EM26) 17th February 2014 16 day(s) 0.0227 8.8 120 m – 270 m 12.37 km/s 44532 km/h
85953 (1999 FK21) 17th February 2014 16 day(s) 0.1910 74.3 590 m 24.29 km/s 87444 km/h
(1999 SK10) 20th February 2014 19 day(s) 0.1838 71.5 320 m – 710 m 11.48 km/s 41328 km/h
(2012 DY43) 20th February 2014 19 day(s) 0.0403 15.7 67 m – 150 m 19.41 km/s 69876 km/h
(2001 EB18) 21st February 2014 20 day(s) 0.1161 45.2 370 m – 820 m 26.33 km/s 94788 km/h
(2006 DS14) 22nd February 2014 21 day(s) 0.1644 64.0 220 m – 490 m 14.41 km/s 51876 km/h
(2009 EC1) 25th February 2014 24 day(s) 0.1246 48.5 73 m – 160 m 8.07 km/s 29052 km/h
(2013 TN127) 01st March 2014 28 day(s) 0.1930 75.1 15 m – 34 m 8.18 km/s 29448 km/h
(2006 FV) 01st March 2014 28 day(s) 0.1145 44.5 64 m – 140 m 6.19 km/s 22284 km/h
1 AU = ~150 million kilometers,1 LD = Lunar Distance = ~384,000 kilometers Source: NASA-NEO

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BPEarthWatch BPEarthWatch

Published on Jan 11, 2014

Solar,Quake,Volcano and Weather Links http://www.BpearthWatch.Com
http://www.amsmeteors.org/fireball_ev…
http://lunarmeteoritehunters.blogspot…

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Space Weather

All Sky Fireball Network

by Dr. Tony Phillips.

 

Every night, a network of NASA all-sky cameras scans the skies above the United States for meteoritic fireballs. Automated software maintained by NASA’s Meteoroid Environment Office calculates their orbits, velocity, penetration depth in Earth’s atmosphere and many other characteristics. Daily results are presented here on Spaceweather.com.

On Jan. 11, 2014, the network reported 14 fireballs.
(14 sporadics)

In this diagram of the inner solar system, all of the fireball orbits intersect at a single point–Earth. The orbits are color-coded by velocity, from slow (red) to fast (blue). [Larger image] [movies]

 

Near Earth Asteroids

Potentially Hazardous Asteroids (PHAs) are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time.

On January 12, 2014 there were 1450 potentially hazardous asteroids.

Recent & Upcoming Earth-asteroid encounters:

Asteroid
Date(UT)
Miss Distance
Size
2014 AD16
Jan 8
1.5 LD
15 m
2014 AE29
Jan 9
4.1 LD
15 m
2014 AW32
Jan 10
0.5 LD
15 m
2014 AZ32
Jan 11
6.2 LD
28 m
2007 SJ
Jan 21
18.9 LD
1.9 km
2012 BX34
Jan 28
9.6 LD
13 m
2006 DP14
Feb 10
6.2 LD
730 m
2000 EM26
Feb 18
8.8 LD
195 m
2000 EE14
Mar 6
64.6 LD
1.8 km
2003 QQ47
Mar 26
49.9 LD
1.4 km

Notes: LD means “Lunar Distance.” 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU. MAG is the visual magnitude of the asteroid on the date of closest approach.

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DAHBOO77

 

Published on Dec 30, 2013

This is the latest imaging on Comet Ison, Or , What is left of it! As we can see , it looks like we have a massive debris trail following where Ison Should Have Been !

http://groups.yahoo.com/neo/groups/co…

https://secure.flickr.com/photos/hiro…

https://twitter.com/SungrazerComets/s…

 

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Jan. 16 May Be Last Best Chance to Search for Comet ISON’s Remains

by Bob King on December 30, 2013

Want to stay on top of all the space news? Follow @universetoday on Twitter

Comet ISON revolves around the sun in steeply inclined orbit. Earth will pass through the plane of that orbit on Jan. 16. As we look "up" toward the comet our edgewise perspective could cause a temporary brightening of ISON's dust remnant. Credit: solarsystemscope.com with annotations by the writer.

Comet ISON revolves around the sun in steeply inclined orbit. Earth will pass through the plane of that orbit on Jan. 16. As we look “up” toward the comet, ISON’s dust stacks up along our line of sight and could appear temporarily brighter. Credit: solarsystemscope.com with annotations and additions by Bob King

Is there any hope of detecting what’s left of Comet ISON after the sun proved too much for its delicate constitution? German amateur astronomer Uwe Pilz suggest there remains a possibility that a photographic search might turn up a vestige of the comet when Earth crosses its orbital plane on January 16, 2014.

Comet ISON is located high in the northern sky near the familiar "W" or "M" or Cassiopeia during the time of orbital crossing. Stellarium

Comet ISON is located high in the northern sky near the familiar “W” or “M” or Cassiopeia during the time of orbital crossing. Stellarium

On and around that date, we’ll be staring straight across the sheet of debris left in the comet’s path. Whatever bits of dust and grit it left behind will be “visually compressed” and perhaps detectable in time exposure photos using wide-field telescopes. To understand why ISON would appear brighter, consider the bright band of the Milky Way. It stands apart from the helter-skelter scatter of stars for the same reason; when we look in its direction, we peer into the galaxy’s flattened disk where the stars are most concentrated. They stack up to create a brighter band slicing across the sky. Similarly, dust shed by Comet ISON will be “stacked up” from Earth’s perspective on the 16th.

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Spaceweather.com

by Dr. Tony Phillips.

GEMINID METEOR SHOWER–IT’S UNDERWAY:

  This sharp uptick in activity signals the official beginning of the 2013 Geminid meteor shower. For the next 3 to 4 days, Earth will pass through a stream of debris from rock comet 3200 Phaethon, producing dozens of meteors per hour flying out of the contellation Gemini. “There is a nice show going on right now,” says Bill Cooke, head of NASA’s Meteoroid Environment Office.

The multiple cameras of NASA’s fireball network are able to measure the orbits of Geminid meteoroids. This plot shows the orbits of the 39 fireballs recorded so far this week:

Earth is the blue dot where all the orbits intersect. The purple curve shows the path of Geminid parent 3200 Phaethon.

Forecasters expect the shower to peak on Dec. 13-14 when Earth passes through the busiest part of Phaethon’s debris stream. Peak rates could reach 120 meteors per hour. However, glare from the nearly-full Moon could reduce the number of visible meteors 2- to 3-fold. Cooke advises looking during the hours just before local sunrise on Saturday, Dec. 14th. “At that time, the Moon will be below the horizon, improving your chances of seeing the show.”

You can listen to radar echoes from the Geminids, unaffected by moonlight, on Space Weather Radio. Also, tune into NASA’s live web chat about the Geminids on Friday the 13th beginning at 11 pm EST.

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Geminid meteor shower will light up Friday night sky

Geminid meteor photographed over Steamboat Springs, Colo., on Dec. 12, 2010 Jimmy Westlak

More than 100 meteors will rocket across the sky on the night of Dec. 13 and early morning hours of the 14th. Visible from almost any point on Earth, it’s the peak of the annual Geminid meteor shower.

The most intense meteor shower of the year, the Geminid features between 100 and 120 meteors per hour at its peak, traveling about 78,000 miles per hour. The full shower lasts from Dec. 12-16.

“The Geminids are my favorite because they defy explanation,” said Bill Cooke, lead for NASA’s Meteoroid Environment Office, in a press release. “Of all the debris streams Earth passes through every year, the Geminids are by far the most massive. When we add up the amount of dust in the Geminid stream, it outweighs other streams by factors of 5 to 500.”

While most meteor showers are a collection of meteorids spewed from comets, the Geminid meteor shower features fragments and dusty debris of a “weird rocky object named 3200 Phaethon,” according to NASA.

 

Read More Here
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Earth Watch Report  -  Space

Image Source  NASA

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Earth approaching objects (objects that are known in the next 30 days)

Object Name Apporach Date Left AU Distance LD Distance Estimated Diameter* Relative Velocity
(2006 CT) 10th December 2013 0 day(s) 0.0629 24.5 92 m – 210 m 5.12 km/s 18432 km/h
(2009 XP2) 13th December 2013 3 day(s) 0.0516 20.1 24 m – 54 m 7.15 km/s 25740 km/h
(2008 TQ2) 13th December 2013 3 day(s) 0.1535 59.7 170 m – 380 m 6.82 km/s 24552 km/h
(2006 YV1) 17th December 2013 7 day(s) 0.1287 50.1 130 m – 280 m 16.87 km/s 60732 km/h
(2008 ON10) 17th December 2013 7 day(s) 0.1511 58.8 31 m – 68 m 3.82 km/s 13752 km/h
(2010 VA76) 17th December 2013 7 day(s) 0.1989 77.4 42 m – 94 m 3.99 km/s 14364 km/h
(2012 CL19) 19th December 2013 9 day(s) 0.0976 38.0 120 m – 260 m 7.89 km/s 28404 km/h
(2012 XL16) 20th December 2013 10 day(s) 0.1290 50.2 21 m – 47 m 4.35 km/s 15659.999999999998 km/h
(2005 YV128) 22nd December 2013 12 day(s) 0.1722 67.0 210 m – 470 m 14.43 km/s 51948 km/h
(2011 YD29) 27th December 2013 17 day(s) 0.0157 6.1 15 m – 33 m 6.70 km/s 24120 km/h
(2011 BT15) 27th December 2013 17 day(s) 0.0322 12.5 120 m – 270 m 6.00 km/s 21600 km/h
(2010 XZ67) 28th December 2013 18 day(s) 0.0639 24.9 310 m – 680 m 8.82 km/s 31752 km/h
(2009 XZ1) 29th December 2013 19 day(s) 0.0508 19.8 130 m – 300 m 15.28 km/s 55008 km/h
(2013 AH76) 02nd January 2014 23 day(s) 0.1899 73.9 70 m – 160 m 12.46 km/s 44856 km/h
(2013 VF13) 05th January 2014 26 day(s) 0.1864 72.5 150 m – 330 m 10.03 km/s 36108 km/h
(2013 UB1) 05th January 2014 26 day(s) 0.0725 28.2 180 m – 410 m 10.38 km/s 37368 km/h
2062 Aten 07th January 2014 28 day(s) 0.1463 56.9 1.1 km 10.25 km/s 36900 km/h
(2012 HN1) 07th January 2014 28 day(s) 0.1993 77.6 11 m – 24 m 4.96 km/s 17856 km/h
1 AU = ~150 million kilometers,1 LD = Lunar Distance = ~384,000 kilometers Source: NASA-NEO

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Earth approaching objects – Tuesday , September 17th, 2013

Earth approaching objects – Thursday August 8th , 2013

Earth approaching objects – Friday August 2nd , 2013

Earth approaching objects – Tuesday July 23rd , 2013

Earth approaching objects – Thursday July 18th , 2013

Earth approaching objects – Saturday July 13th , 2013

Earth approaching objects – Tuesday July 2nd , 2013

Earth approaching objects – Tuesday June 25th , 2013

Earth approaching objects – Saturday June 22th, 2013

Earth approaching objects – Saturday June 15th, 2013

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BPEarthWatch BPEarthWatch

 

Published on Dec 10, 2013

 
 
 

Published on Dec 9, 2013

Lovejoy’s Tail suffers a disconnect.

 
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NBC News/science

Geminid meteor shower set to peak, but moon might curtail viewing

Dec. 9, 2013 at 6:26 PM ET

Geminid

SkyandTelescope.com
This chart shows the radiant point for the Geminid meteor shower.

This week marks the peak of what is usually considered the most satisfying of all annual meteor displays: the Geminid meteor shower.

As was the case with last month’s Leonid meteor shower, however, prospective skywatchers should be aware that once again, observers will face a major obstacle in their attempt to see this year’s Geminid performance, namely, the moon.

Unfortunately, as luck would have it, the moon will turn full on Dec. 17, and as such, will seriously hamper viewing the peak of the Geminids, predicted to occur in the overnight hours of this Friday to Saturday. Bright moonlight will flood the sky through much of that night, playing havoc with any serious attempts to observe the usually spectacular meteor shower. [See amazing photos of the 2012 Geminid meteor shower]

The Geminids are already around, having been active only in a very weak and scattered form since about Dec. 7. Geminid activity is expected to be on an upswing in the nights to come, leading up to their peak on Friday night.

Historically, this shower has a reputation for being rich both in slow, bright, meteors as well as rather faint meteors, with relatively few of medium brightness. Many Geminid meteor shower streaks appear yellowish in hue. Every once in a while, a Geminid fireball will blaze forth, bright enough to be quite spectacular and more than capable of attracting attention even in bright moonlight.

“If you have not yet seen a mighty Geminid fireball arcing gracefully across an expanse of sky, then you have not seen a meteor,” astronomers David Levy and Stephen Edberg wrote in their book, “Observe Meteors,” published by the Astronomical League.

Dark sky opportunities
The best times to look for streaking Geminids this year will be during the predawn hours several mornings before the night of full moon when the constellation Gemini will be standing high in the northwest sky. 

Geminid1

Joe Rao / Space.com
l times in this chart are a.m. and are local standard times. “MS” is the time of moonset. “Dawn” is the time when morning (astronomical) twilight begins. “Win” is the available window of dark sky composed of the number of minutes between the time of moonset and the start of twilight.

In fact, three “windows” of dark skies will be available between moonset and the first light of dawn on the mornings of Dec. 13, 14 and 15. Generally speaking, there will be about two hours of completely dark skies available on the morning of Dec. 13. This window shrinks to only about an hour on the 14th, and to less than 10 minutes by the morning of the 15th.

 
 
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WoW! Huge Pyramid Fireball Over Portland Oregon!

DAHBOO77

Published on Nov 20, 2013

For the 2nd time in 3 weeks , Oregon residents have witnessed fireballs raining down from their skies! This time in the shape of a flaming Pyramid Structure!

http://www.14news.com/story/24022659/…

http://www.kptv.com/slideshow?widgeti…

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DAHBOO77·

 

Published on Nov 19, 2013

This thing was Bright! The Meteorite/Fireball was caught on cameras All across Moscow !

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