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

 

Housing Policy: Auckland Densification As Popular As Ebola, English Says

Finance Minister Bill English said calls by the Reserve Bank Governor for more densification in Auckland’s housing were “about as popular in parts of Auckland as Ebola” would be. More>>

ALSO:

Crown Accounts: NZ Government Deficit Smaller Than Expected In First Half

The New Zealand government's operating deficit was smaller than expected in the first six months of the financial year, as the consumption and corporate tax take rose ahead of forecast in December, having lagged estimates in previous months. More>>

ALSO:

Fruit & Veg Crackdown: Auckland Fruit Fly Find Under Investigation

The Ministry for Primary Industries (MPI) is investigating a find of a single male Queensland fruit fly in a surveillance trap in the Auckland suburb of Grey Lynn... MPI has placed legal controls on the movement of fruit and some vegetables outside of a defined circular area which extends 1.5km from where the fly was trapped in Grey Lynn. More>>

ALSO:

Scoop Business: Westpac NZ Reaches $2.97M Swaps Settlement

Westpac Banking Corp’s New Zealand unit has agreed to pay $2.97 million in a settlement with the Commerce Commission over the way the bank sold interest rate swaps to farmers between 2005 and 2012. More>>

ALSO:

Going Dutch: Fonterra Kicks Off $144M Partnership With Dutch Cheese Maker

Fonterra Co-operative Group, the world’s largest dairy exporter, has commissioned a new dairy ingredients plant in Heerenveen, in the north of the Netherlands, its first wholly-owned and operated ingredients plant in Europe. More>>

ALSO:

Scoop Business: NZ Retail Sales Beat Estimates

New Zealand retail sales rose more than expected in the fourth quarter, led by vehicle-related transactions, food and beverages, adding to evidence that cheap credit and a growing jobs market are encouraging consumers to spend. More>>

ALSO:

Delivery Cuts Go Ahead: 'Government Money Grab' From NZ Post

"It's a money grab by the Government as the shareholder of New Zealand Post" says Postal Workers Union advocate Graeme Clarke about the changes announced by NZ Post. More>>

ALSO:

Get More From Scoop

 
 
Standards New Zealand

Standards New Zealand
 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news