Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search

 


Geminid Meteor Show Peaks 15 Dec

Observing the Geminids in December

Chart showing the sky surrounding the radiant of the Geminids.

The Geminid Meteor shower is one of the most active of the year, sometimes surpassed only by the Perseids in intensity.

The shower peaks on the morning of 15 December in New Zealand. The Geminids don't seem to have a sharp peak like the Leonids, and observations can be made for a week either side of the peak.

At it's height, the Geminids have a zenith hourly rate of about 80 meteors per hour. So, if for you the radiant was at the zenith, and you could observe the whole sky at once, you might expect to see 80 meteors an hour.

Alas, in New Zealand, the radiant is low. In fact it lies just a degree or two to the left of, and slightly below, Castor. So, in New Zealand we effectivly lose out on seeing 50% of the meteors before we start. But it is still a shower worth looking at. I have found from when I lived in Auckland, and if it was fine, seeing a dozen or more Geminids an hour around the peak was quite normal. And of course one cannot observe all the sky at once. Geminids are inclined to leave good trains, and some of those meteors travel long distances. One I observed appeared first near Sirius, and travelled overhead and a long way towards the southern horizon. Remember, meteors do not appear at the radiant, unless they are heading straight for you, but generally tens of degrees from it.

The best time to look for Geminids is any time after about 1 or 2 am through until dawn. Gemini will be approaching north. I would suggest you look for Geminids streaking through the sky in the region of Orion and the area of sky to the right of Orion. Make sure you have a dark sky from northwest sound to east, and at least up to the zenith. Keep glow from city lights to the south of you.

Most meteor showers are associated with cometary debris travelling in the orbit of the comets. The Geminids are a bit different. The appear to be travelling in the same orbit as Apollo asteroid 3200 Phaethon. Is this an asteroid that perhaps was once surrounded by and icy snowball of cometary matter?

Full post: Geminids in December

© Scoop Media

 
 
 
 
 
Business Headlines | Sci-Tech Headlines

 

Suspected Black Widows: Table Grapes Withdrawn From Sale Following Spider Discovery

The Ministry for Primary Industries (MPI) is working closely with New Zealand produce retailers to have all imported Mexican table grapes withdrawn from sale following the discovery of spiders in a small number of consignments. More>>

ALSO:

Crown Accounts: 11-Month Surplus Beating Forecasts

Once minority interests’ share of revenues and expenses are removed, the total Crown’s operating balance before gains and losses (OBEGAL) was a surplus of $1,176 million in the eleven-month period. This compares to a forecast surplus of $193 million. More>>

ALSO:

Development: Screen Precinct Earmarked For Hobsonville Point

Auckland Council’s Auckland Development Committee has today passed a recommendation to create a screen precinct on council-owned land at Hobsonville Point. More>>

ALSO:

Scoop Business: NZ Business Confidence Plummets To Lowest Level Since GFC

New Zealands business confidence plunged to the lowest level in three years in the second quarter as companies became pessimistic about profitability expectations. More>>

ALSO:

Oceans: NZ Jumps Into International Shark Agreement

New Zealand has boosted the protection of sharks by signing the Memorandum of Understanding on the Conservation of Migratory Sharks. More>>

ALSO:

Insurance: EQC To Double Payout, Scrap Contents Insurance

New Zealand’s Earthquake Commission may double its payout amount, scrap contents insurance and process claims through private insurers under the government’s long-running review of funding and management of the state-run earthquake insurer. More>>

ALSO:

Get More From Scoop

 
 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news