The Ghostly Glow of Streaking Orionids’

Watch after each streaking meteorite for a ghostly glow rising from its path
Watch after each streaking meteorite for a ghostly glow rising from its path

Watch for a ghostly glow rising from the corpse of streaking meteorites once they pass

October, 2014 should be a great month for viewing this phenomenon
October 2014 should be a great month for viewing this phenomenon

Space news – October (2014) –

This Halloween modern sky watchers in both hemispheres have the opportunity to witness a ghostly celestial phenomenon viewed by ancient astronomers for generations, the ghostly afterglow of streaking meteorites of the Orionid meteorite shower. For a few nights centered on October 21, 2014, you can watch for a ghostly glow rising from the corpse of each streaking meteorite, which is pieces of Halley’s Comet burning up as they pass through Earth’s atmosphere.

E.C. Herrick is thought to have made the first modern sighting of the Orionid meteorite shower between 1839-40, but his measurements and data were imprecise. The first pinpoint study of this meteorite shower is credited to noted astronomer A.S. Herschel on October 18, 1864, when he recorded 14 meteorites appearing to originate from the constellation of Orion, but it would take a further year of study to confirm his findings.

During the 19th century, British astronomer W.F. Denning and American astronomer C.P. Olivier had a documented debate about whether the point from where the meteorites appear to originate moved from night to night. It would take until the 20th century for modern space scientists to determine using state-of-the-art photography and precise plotting of Orionids that this is in fact not true.

W.F. Denning published a report in one 1887 issue of The Observatory, in which he stated he saw 47 of 57 streaking Orionids leave a ghostly glow in their path after passing, during a viewing session lasting five nights. Denning estimated the magnitudes of streaking Orionids’ between 2nd and 4th magnitude, due to several that brightened considerably after burning up. Watch carefully on the nights centered around October 21, 2014, and you could witness this ghostly celestial phenomenon for yourself.

The best part of viewing Orionids is you don’t need technology because human eyes are perfect for the job. The Moon will be almost new this October, so just find the best spot to view the night sky you know, and lie down on a soft spot on the ground. The best time to arrive for the show is just before midnight or just prior to dusk, but any time between 12 and dawn should be fine. Viewers in the Southern Hemisphere should look towards the northeastern sky, while people in the Northern Hemisphere should look towards the southeast.

Get out there and view the cosmos

Serious sky watchers desiring to get a better idea of the exact times and dates during October 2014 to view Orionids where they live, can get a better estimate here. Just remember to check weather forecasts for the October nights you plan on viewing the night sky for Orionids and dress accordingly. If everything goes as predicted this Orionid meteorite shower could provide as many as 20 opportunities an hour to view a ghostly glow rising from the corpse of a streaking meteorite.

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October’s Early Morning Sky Puts on a Show

Comet Halley dust rains down upon Earth in the early mornings of October

Astronomy takes you on a journey to the beginning of the universe
Periodic trips through the inner solar system have left a little dust behind

Astronomy allows you to view comets, asteroids, planets and a host of amazing things

Astronomy News – Modern stargazers can take in a show that has been entertaining stargazers for thousands of years. The Orionid meteor shower peaks on the night of October 21, the Moon will also be in full phase on this night, and this light will drown out the light of all but the most energetic of meteorites. The Orionid meteor shower still occurs between October 2 to November 7, so patient stargazers will stay up until the early morning hours in the middle of October, will still have a good chance of seeing a few meteorites.
 

Astronomers study comets to discover things about the early solar system

Orionid meteorites are small dust grains thrown off by Comet 1P/Halley, during its many trips through the inner solar system. These dust grains are traveling at a speed generally in the area of 70 km/second, at this speed the surrounding air will glow with heat as a dust grain travels through Earth’s atmosphere, and viewers will a brief flash as the meteorite vaporizes in the atmosphere. Astronomers estimate that about 25 million particles of comet dust enter the Earth’s atmosphere worldwide on a daily basis, burning up as meteorites and adding hundreds of tons of comet dust. During a meteorite shower, Earth is being bombarded by numerous grains of comet dust as the Earth travels through the orbit of a comet. Meteorite showers occur annually due to the fact that the Earth travels through the orbit of a comet at the same time each year. Typically viewers can see a few meteorites each hour on a clear night, but viewers can always be treated to an extra special show.

Comets can put on quite a show

 

During a good performance, viewers could see upwards of twenty meteorites per hour radiating from one direction in the sky generally, just as heavy rain or snow appears to radiate from one direction in front of a moving vehicle. The Earth is moving relative to the comet dust, as a result, more comet dust will hit the Earth’s atmosphere in the part facing in the direction of the Earth’s movement, and viewers will get a better show in the pre-dawn sky, when part of their sky is facing in the direction of Earth’s rotation.

The Orionids are comet dust left behind by Comet 1P/Halley
Stargazers can also view minor meteorite showers during October, the Draconid meteorite shower peaks October 8, just one day after a New Moon. Viewers may have a better chance of viewing a meteorite on this night, due to the New Moon. Draconid meteorites only travel at 12 miles per second, rather slow for meteorites in fact, so you should be able to tell Draconid meteorites from typical sporadic meteorites. The Draconid meteorite shower is a relatively dull show, normally, but occasionally stargazers can get lucky and see a show reaching 10 to 30 meteorites per hour. Astronomers aren’t predicting the Draconid meteorites will be putting on a show this year, but they’ve been wrong before.