Re: (meteorobs) Radiant Diameters

• To: meteorobs@latrade.com
• Subject: Re: (meteorobs) Radiant Diameters
• From: Malcolm Currie <mjc@ast.star.rl.acdot uk>
• Date: Thu, 30 Apr 1998 19:34:04 +0100 (BST)
• In-Reply-To: <199804291753_MC2-3B73-3483@compuserve.com>
• Reply-To: meteorobs@latrade.com
• Sender: owner-meteorobs

RA> (Draconids 0.07 (2))

RA> The numbers in brackets are the numbers of meteors involved.

How do you determine a radiant size based on two meteors?  Is this the
angular separation of the two radiants, possibly multiplied by some fudge
factor?

> These diameters were derived from the plotting errors of experienced
> observers and are based on doubly plotted meteors. The IMO Calendar does
> not list the diameters of 5deg anymore, since thy have no practical
> meaning.

As George and I pointed out, there are still some radiant diameters listed
in the 1998 IMO Calendar in the highlighted showers.  So we should ask
Alastair to modify the 1999 edition.

Malcolm

• Re: (meteorobs) Re: Radiant Diameters
• From: Rainer Arlt <100114.1361@compuserve.com>

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