(meteorobs) [Fw: Comet ISON Meteor Shower]
Marco Langbroek
marco.langbroek at online.nl
Wed Jan 8 06:22:55 EST 2014
pzeller1966 schreef op 8-1-2014 5:30:
> Since the possible meteor shower could start as early as January 12, I was
> wondering if Pat or anyone else had an idea, at least roughly, where the radiant
> would be in Draco? I may try to get out some mornings before dawn next week to
> get a look. That is, if this weather ever calms down!
Hmmm: when I input ISON's orbital elements into Neslusan et al.'s MetRad
software, I do not get a radiant in Draco but actually get a radiant near eta
Leo (assuming no mistakes), near RA 10h12m Dec +17:
EQUINOX: 2000.0; DATA FOR YEAR: 2014
--------------------------------------------------------------------
METH. ALPHA DELTA VG VH L DATE-MAX. D-DISC.
-Q 153.0 16.8 50.90 42.60 295.7 JAN. 16.1 .003
-B 152.5 16.8 51.63 43.44 295.7 JAN. 16.1 .003
-W 153.0 16.2 51.08 42.64 295.7 JAN. 16.1 .026
-A 149.9 17.8 51.90 42.64 291.0 JAN. 11.5 .324
-H 152.3 16.5 51.08 42.64 295.0 JAN. 15.4 .023
-P 152.7 16.5 51.28 42.64 295.0 JAN. 15.4 .083
--------------------------------------------------------------------
FIRST/SECOND (-/+) SET OF DATA CONCERNS THE PRE-/POST-PERIHELION ARC
THE BEST METHOD - PRE-PERIHELION ARC: B (D = .003)
EQUINOX: 2000.0; DATA FOR YEAR: 2014
----------------------------------------------------------
METH. Q E PERI. NODE INCL. D-DISC.
-Q .0155 1.0002 345.5 295.7 62.4 .003
-B .0149 1.0014 345.5 295.7 62.4 .003
-W .0125 1.0002 347.0 295.7 62.4 .026
-A .0125 1.0002 347.0 291.0 80.5 .324
-H .0125 1.0002 347.0 295.0 62.4 .023
-P .0125 1.0002 347.0 295.0 67.0 .083
----------------------------------------------------------
ADDITIONAL INFORMATION:
(-) DIST. = .684 AU; DT = 74.7 DAYS; MIN. DIST. = .0227 AU
- Marco
-----
Dr Marco (asteroid 183294) Langbroek
Dutch Meteor Society (DMS)
e-mail: dms at marcolangbroek.nl
http://www.dmsweb.org
http://www.marcolangbroek.nl
-----
More information about the meteorobs
mailing list