[Prev][Next][Index][Thread]

RE: (meteorobs) New Meteor Showers



The odds are very slim indeed. In fact, a new comet (from the Oort cloud, 
or Kuiper Edgeworth belt) can only pretty much produce a one time outburst. 
In order to create an annual shower, many revolutions are required to 
distribute the particles in time enough so that there are meteors each 
year. That is why almost all annual showers are derived from short period 
comets. A few exceptions exist, such as the Lyrids are not technically 
short period (<200 Years), since the comet's orbit is about 415 years, but 
that's short enough that it has made enough orbits to provide some meteors 
each year. It still retains some of the outburst charachteristics, though. 
And of course there's the Geminids parent object which appears to be an 
asteroid, but may in fact be a degassed comet. As for a loooong period 
comet, such as Hale-Bopp, the earth is a VERY small target in the scale of 
the solar system, so in fact we will never see a shower from that comet, 
and the odds of a long period comet coming close enough are very long :-)
	Besides, you don't really want to come TOO close to a comet screaming in 
from the oort cloud....a slight course change and WHAMMO!!!

Wayne

----------
From: 	Willie Carr[SMTP:kdcarr@cstonedot net]
Sent: 	Friday, January 21, 2000 5:05 PM
To: 	meteorobs@jovian.com
Subject: 	(meteorobs) New Meteor Showers

What are the chances, generally speaking, that a new comet from the
outer solar system, cross the orbit to where it creates a new meteor
shower.  Also, does anyone know how "old" the less-know (or least
observed) showers are, since there is not that much information on them,
compared to the Leonids, Geminids, etc.?

Kevin

To UNSUBSCRIBE from the 'meteorobs' email list, use the Web form at:
http://www.tiacdot net/users/lewkaren/meteorobs/subscribe.html


begin 600 WINMAIL.DAT
M>)\^(C0.`0:0" `$```````!``$``0>0!@`(````Y 0```````#H``$(@ <`
M& ```$E032Y-:6-R;W-O9G0@36%I;"Y.;W1E`#$(`0V ! `"`````@`"``$$
MD 8`( $```$````,`````P``, (````+``\.``````(!_P\!````1P``````
M``"!*Q^DOJ,0&9UN`-T!#U0"`````&UE=&5O<F]B<T!J;W9I86XN8V]M`%--
M5% `;65T96]R;V)S0&IO=FEA;BYC;VT``!X``C !````!0```%--5% `````
M'@`#, $````5````;65T96]R;V)S0&IO=FEA;BYC;VT``````P`5# $````#
M`/X/!@```!X``3 !````%P```"=M971E;W)O8G- :F]V:6%N+F-O;2<```(!
M"S !````&@```%--5% Z345414]23T)30$I/5DE!3BY#3TT````#```Y````
M``L`0#H!`````@'V#P$````$`````````KLU`02 `0`C````4D4Z("AM971E
M;W)O8G,I($YE=R!-971E;W(@4VAO=V5R<P#S"P$%@ ,`#@```- '`0`6``D`
M"@`D``8`*P$!(( #``X```#0!P$`%0`4`!L`,0`%`%(!`0F `0`A````0C8R
M0S$W.#@W,S8T0D8Q,3@V0C$Q-C,W,T8S1C4R-30`]P8!`Y &`) '```4````
M"P`C```````#`"8```````L`*0```````P`N```````#`#8``````$ `.0`@
M=3YTXF2_`1X`< `!````(P```%)%.B H;65T96]R;V)S*2!.97<@365T96]R
M(%-H;W=E<G,```(!<0`!````%@````&_9.)ST-SK3BW0/!'3B!+C(0/KM"P`
M`!X`'@P!````!0```%--5% `````'@`?# $````4````;65T96]R<T!E8VQI
M<'-E+FYE= `#``80P3Y3,@,`!Q"H!0``'@`($ $```!E````5$A%3T1$4T%2
M159%4EE33$E-24Y$145$24Y&04-4+$%.15=#3TU%5"A&4D]-5$A%3T]25$-,
M3U5$+$]22U5)4$52141'15=/4E1(0D5,5"E#04Y/3DQ94%)%5%19355#2%!2
M3P`````"`0D0`0```/H%``#V!0``!PH``$Q:1G5 _,\-_P`*`0\"%0*D`^0%
MZP*#`% 3`U0"`&-H"L!S971N,@8`!L,"@S(#Q0(`<(1R<1(B<W1E;0*#;C,3
M# <3`H,T`\85A7T7"H (SPG9.Q?_,C4U#P* "H$-L0M@;F<Q,!XS%) +"A22
M`= @5&AT92 $<&0$( K ',!VH020>2!S; =P( N HPVP"8 N($D#H&8`T.1T
M+!T@(&X'T06@!X"E!4 H`U(@=!RQ3Q>A,Q]P%Y!U9!\`!;%+=<,%( 20($5D
M9P?0%Z& :"!B96QT*1]PNP.1`B!L': 3D!(`=!V@_&UU$; C801P(_ <P!\@
MVP(@',!T!W$<T'4"4 APWQ0`'G,%L 2!(#!O'W 8`)YA%! =( .@`'!N=0= 
M\1VP:&]W!) ?``.!':#M& !V!O E<&D"(!T4& "N<2& & $F@F0$`'0%$/\E
MD"<!($(*L240(- 'D0N UR4$"? (8&<B8',FH"! WR;P(#(=01TR'Z%E!; $
M(.LFX"0!>2;@<AYP'* M,?$$`"!W:!V@!T $8!0`WR_A`R G:QT4!(%I'7 J
M$'\?\R?1(*$AH2D0*A ?@W/-'G!!'K 'T65X)( %,*\I$S10*G$?`',C\F$$
M(/D@0DQY!1 =!2R +4$%D#YH`P`BX#!P':$RNB@\RP'0'(!9+N%S*351"X W
M)($@0A^#)P0@!;!B:8<O8P&@)6$@-#$U+L/^<Q\`*L$M`SJ!,J0L=2T3_SKA
M$< $( # #; L9CJS-='[)J D,78V8!S +. E,2X/_QYQ!4 4``,0`R C@0MQ
M/.'Y0()O9B S)68?<!'!+I'W%! %$$(A8SPA($ LDC/1_QX@0T(%H"6A*O,8
M`#J!($)^1Q0@"X V8@JQ"? %0&]\8FH%D 5 +[ KD#6A</\AH!'1)H(B@"<C
M% $#8#9@?SPT`, =H"OQ'L)*`S'!9_\UP!'P,U4ST00@`A %P!\@7Q>03@$;
M`#+[-5A(!T!E^"U";TEP15(L42MA(F#!.Q(@5D5261VP`,#[,'$!D'(B`"]A
M+ $<L03PWT_A0T8LX M@!<!S$_,U4?\FH$N6* `OH$)"'T =<1VP_PG@'Q$G
MU#)$+1-.Y0!P*A'_'+9#44W23DT?<@N 3E @T8]&H2QU'3=90SHM*0J&N0&1
M($('D$ Q/"%Y"&"[*E "("<%0";1-Z)W`'#'+4$FH4""5$]/6L4FD?\?(!^$
M!/$FX%J#2Y(@!DX`_2"F+F,Q5H$=T"RP5Y)&@P\1L1L`)Q(J$%=(04VX34\A
M98 *A0J%5TM@SQ] 9;P*]!W0,3@XX (`X&DM,30T#? ,T&C#>0M9,38*H -@
M-R$%0"U?:N<*AVF;##!J9D8#83HW:^YJ9ETC5T)!") @0P$*P');4TU44#KL
M:V0BX' P0$4P)I ?0/(N'T!T76N/;)T&8 (POVW/;MMM@#9@2V ?`$H`<',G
MD!V1,C$?`#C1'( U9#HP.\!037'?;)U4'F]T'V[;0,1(D'- :KM $0!P+A^!
M=_]R[G5(H[MZ'V[;*'OW(L 'PDU T\\&`#$D9N]G\S,V:6<6(OL,`6IF5RTB
M'3(Y\V2!)("_/"$B`!] 1( WHTF!:UJ1_T52AH(?.1_V"H4E85824^O_!0`P
M(#74.K0FD2^P+8(ZX?\FQ%$R'T) Q J%)]0><!5P?FPLX!\`7D".4BAP)-)K
M)RR !^ GX2 B!O!D(M,@,RNQ<RV18R@%L2NP_TIQBI9\8 20,A$BP#$9.7G_
MC:($(#;C+2(CXPN 39$`P/\I`B,1(#)4@ J%'X%((BH3?S7S+C!'TA\`1Y8?
M`!(`8_0N/V6\2RBP"X!EO'GP`"!53E-50E-#4%))0D5A^"=[]R??+& `P ,1
M'= U,G5&I&40?F5=4)>2'2!_D'T]A75CW0!!=1?@:F5H$&YPL#Y 00) <#HO
M+W>E`"ZW)1 `T'&"+Z"Q$> O*[#4=VM(,B][]R\U<'Q@ZP4!(H N1+!MHZ&%
M'TC"7X-OA'X<-*DN%R$`K6 ```,`$! ``````P`1$ ````! ``<P`!W*Y'=D
LOP% ``@P`!W*Y'=DOP$>`#T``0````4```!213H@``````,`#33]-P``EE-D
`
end

To UNSUBSCRIBE from the 'meteorobs' email list, use the Web form at:
http://www.tiacdot net/users/lewkaren/meteorobs/subscribe.html