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Re: (meteorobs) Leonid report - narrative - Nov 17/18, Mt. Lemmon, AZ (ATAJU)
Its certainly possible to see an earthgrazer if the radiant is a bit below the horizon, because the radiant has a finite size, it is not a point. Depends on how far below the horizon the center of the radiant area was. The Leonids are reported to have about a 5° diameter radiant, so if the center radiant "point" was within 2.5° below the horizon, it may be possible to catch a rare one coming from that extreme upper part of the radiant area that has already risen.
At 0535UT, the reported ZHR was around 100, which may be high enough to statistically allow catching such a rarity.
Mike Linnolt
--- Skywayinc@aol.com wrote:
> In a message dated 11/25/01 3:47:30 PM Eastern
> Standard Time,
> JureAtanackov@emaildot si writes:
>
> From Skywatchers Inn, outside of Benson,
> Arizona, I saw the longest Earth
> grazer I ever saw: at 10:35 p.m. MST on November 17
> (0535 UT on November
> 18), I witnessed a grazer that started very near the
> east-northeast horizon,
> climbed all the way up through the zenith and
> finally disappeared just above
> the west-southwest horizon. It did not leave any
> kind of streak or trail,
> but took at least 15 seconds to traverse nearly
> 180-degrees of sky. The
> estimated magnitude of this object was 0 to -1. I
> was rather surprised,
> since the Leonid radiant was still well-below our
> local horizon, yet what
> else could it possibly have been?
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