ust as with the well known
office toy where a ball moves erratically between three magnets) is very
complicated. The shadow of the moon on the earth is in fact very small and
the chances for any misalignment to prevent an eclipse being observed are
also high.
>how many eclipses the earth gets in
il years later (if at all) that you
realise you were duped.
Of course one thing led to another and after my initial explanation, the
next question was how many eclipses the earth gets in a year. At this
point I admitted my ignorance of the full facts, but said I knew a group of
people who would know
My work has kept me away from sundials for a time, but now, in a way, has
brought me back. I represent TravelQuest International, the world leader in
eclipse chasing tours, and got to wondering if there is a list of dials
commemorating eclipses. I did not find much from internet searching. I
into
concavity, mere inflection points.
In view of the Earth's mass of 81 moons, the gravicenter mind you is
still under the surface of the Earth, but not so close to the center of the
Earth: it moves around constantly. That's not trivial either, for us!
Number of eclipses: 5 maximum, 2
>>>>a trace of the Moon's path with respect *to the Sun*
>>>>shows it convex at (almost) all times, with very brief "dips" into
>>>>concavity, mere inflection points.
[...]
>>>>Number of eclipses: 5 maximum, 2 solar and 3 lunar.
e is a web site that describes itself
"Welcome to the Eclipse Home Page at the NASA/GSFC Sun-Earth
Connection Education Forum. This web site is continually
expanding and strives to be the ultimate resource for online
information about eclipses. Please contact
s,
Frans Maes
www.fransmaes.nl/sundials
Hans Clugston wrote:
>
> My work has kept me away from sundials for a time, but now, in a way,
> has brought me back. I represent TravelQuest International, the world
> leader in eclipse chasing tours, and got to wondering if there is a lis
-zonnewijzerkring.nl
Molens
http://www.collsemolen.dse.nl
Eindhoven, Netherlands
lat. 51:30 N long. 5:30 E
- Original Message -
From: Hans Clugston
To: 'Sundial Mailing List'
Sent: Tuesday, May 13, 2008 8:40 PM
Subject: Eclipses
My work has kept me away fro
and give the translation (amusing
French charade) if you want .
Joël
48°01'25'' N, 1°45'40" O
---> http://www.cadrans-solaires.fr/
- Original Message -
From: Hans Clugston
To: 'Sundial Mailing List'
Sent: Tuesday, May 13, 2008 8:40 PM
Sub
Regarding Jim Morrisons request for lunar eclipses in 1582. I ran an
astronomical simulation for 1581-1583. There were no (umbral) lunar eclipses
that were visible in both Madrid and Mexico City. During the actual year of
1582 there were no total lunar eclipses anywhere in the world
Does anyone out there in sundial land have a source that gives the
circumstances of lunar eclipses in 1582? I am trying to help a young man
with a project related to efforts to determine the longitude of Mexico City
in that time period. We need an eclipse that is visible in both Madrid and
I want to thank everyone who responded to my request for information on an
historical lunar eclipse. Thanks to Tony Kitto, the correct eclipse was
found to be on September 26/27, 1577.
The Sundial list is a fabulous resource for practical astronomy information.
Best regards,
Jim
James E. Morr
At 12:41 AM 2/20/99 -0500, you wrote:
>Does anyone out there in sundial land have a source that gives the
>circumstances of lunar eclipses in 1582? I am trying to help a young man
>with a project related to efforts to determine the longitude of Mexico City
>in that time period.
>From Fred Espenak's wonderful Eclipse Pages at NASA, I found the following
two solar eclipses in 1582. The first was total, but of quite short
duration (and) low magnitude, with the maximum 110 degrees East of
Greenwich. The second was Annular, with it's maximum in the southe
I meant to include the URL for the Eclipse Pages:
http://sunearth.gsfc.nasa.gov/eclipse/eclipse.html
Dave
On Sat, 20 Feb 1999 [EMAIL PROTECTED] wrote:
> Regarding Jim Morrisons request for lunar eclipses in 1582. I ran an
> astronomical simulation for 1581-1583. There were no (umbral)
In 1582 there were two solar eclipses and three lunar eclipses.
Lunar Eclipses were, all of them, of penumbral type and their magnitude was
very low, so I think, they could have been appreciated with difficulty or
not at all.
Anyway, the first one (June 6th) was visible from Mexico City only, and
Jim Morrison wrote:
>
> Does anyone out there in sundial land have a source that gives the
> circumstances of lunar eclipses in 1582? I am trying to help a young man
> with a project related to efforts to determine the longitude of Mexico City
> in that time period. We need an
Hi Dialers,
It's been my experience that penumbral eclipses are almost invisble, so don't
expect too great of a show on Jan 31st.
Troy Heck
http://vizual-statistix.tumblr.com/post/87518525946/when-it-comes-to-making-data-visually-engaging?utm_medium=email&utm_source=html&utm_campaign=weekly_top_posts_subject_2&utm_term=post_87518525946
Fascinating !
--
--
Richard Mallett
Eaton Bray, Dunstable
South Beds. UK
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