Space Telescope Public Lecture Series Webcast - February 6, 2007

Hubble Space Telescope Public Lecture Series
at the
Space Telescope Science Institute


Speaker: Chris Burke, Space Telescope Science Institute

Topic: Recent Results of Transiting Extrasolar Planets

Date: February 6, 2007

Time: 8 PM

Place: Space Telescope Science Institute (STScI) Auditorium

Price: Free admission and free parking

Phone: 410-338-4700

Internet: http://hubblesite.org/about_us/public-talks.shtml


Astronomers have discovered about 200 planets around other
stars. Some of these extrasolar planets are found to transit
in front of their stars from our point of view, and their
study yields highly accurate planetary radii. The transiting
planets discovered to date exhibit a variety of properties,
from the smaller rocky cores to inflated sizes that puzzle
even the experts. Dr Burke will review the recent
observations about extrasolar planets and provide details
of a unique robotic survey to search for them.


Lectures on a diverse selection of cosmic topics are held
the first Tuesday of every month at 8 PM in the STScI
Auditorium, located at 3700 San Martin Drive on the Homewood
campus of Johns Hopkins University. Admission is free and free
parking is available in the lot across the street.

This lecture will be webcast live. The recorded webcast will
also be available for viewing online the following day. To
view the webcast, you may need to download and install
software. See the web site listed below in advance for
details.

Further information and directions are available by
calling 410-338-4700 or on the internet at:

http://hubblesite.org/about_us/public-talks.shtml


NEXT MONTH: March 6, 2007
Benne Holwerda, Space Telescope Science Institute
On the Shores of Island Universes

On Feb 5, 6:10 pm, "fjsummers" wrote:
Hubble Space Telescope Public Lecture Series
at the
Space Telescope Science Institute

Speaker: Chris Burke, Space Telescope Science Institute

Topic: Recent Results of Transiting Extrasolar Planets

Date: February 6, 2007

Time: 8 PM

Place: Space Telescope Science Institute (STScI) Auditorium

Price: Free admission and free parking

Phone: 410-338-4700

Internet: http://hubblesite.org/about_us/public-talks.shtml

Astronomers have discovered about 200 planets around other
stars. Some of these extrasolar planets are found to transit
in front of their stars from our point of view........

You have to be kidding me !!!!!!!!!!!!!!!!!!!!!!!!1.

All planets of another solar system viewd from ours would pass in
front of the star,they would have to !!!!.

I know where you are getting the 'some' of the planets instead of all
the planets,it is the way you look at those magnificent events in our
own solar system as the faster inner planets in an inner orbital
circuit overtakes the slower moving Earth -

http://vt-2004.org/mt-2003/mt-2003-soho1999-normal.jpg

Tell me,what do 'some ' of those extra-solar planets do that do not
pass before a distant star ?,When you find your answer you will
discover how badly you treat the local event in our own solar system







and their
study yields highly accurate planetary radii. The transiting
planets discovered to date exhibit a variety of properties,
from the smaller rocky cores to inflated sizes that puzzle
even the experts. Dr Burke will review the recent
observations about extrasolar planets and provide details
of a unique robotic survey to search for them.

Lectures on a diverse selection of cosmic topics are held
the first Tuesday of every month at 8 PM in the STScI
Auditorium, located at 3700 San Martin Drive on the Homewood
campus of Johns Hopkins University. Admission is free and free
parking is available in the lot across the street.

This lecture will be webcast live. The recorded webcast will
also be available for viewing online the following day. To
view the webcast, you may need to download and install
software. See the web site listed below in advance for
details.

Further information and directions are available by
calling 410-338-4700 or on the internet at:

http://hubblesite.org/about_us/public-talks.shtml

NEXT MONTH: March 6, 2007
Benne Holwerda, Space Telescope Science Institute
On the Shores of Island Universes

On Feb 5, 6:10 pm, "fjsummers" wrote:
Hubble Space Telescope Public Lecture Series
at the
Space Telescope Science Institute

Speaker: Chris Burke, Space Telescope Science Institute

Topic: Recent Results of Transiting Extrasolar Planets

Date: February 6, 2007

Time: 8 PM

Place: Space Telescope Science Institute (STScI) Auditorium

Price: Free admission and free parking

Phone: 410-338-4700

Internet: http://hubblesite.org/about_us/public-talks.shtml

Astronomers have discovered about 200 planets around other
stars. Some of these extrasolar planets are found to transit
in front of their stars from our point of view........

You have to be kidding me !!!!!!!!!!!!!!!!!!!!!!!!1.

All planets of another solar system viewd from ours would pass in
front of the star,they would have to !!!!.

I know where you are getting the 'some' of the planets instead of all
the planets,it is the way you look at those magnificent events in our
own solar system as the faster inner planets in an inner orbital
circuit overtakes the slower moving Earth -

http://vt-2004.org/mt-2003/mt-2003-soho1999-normal.jpg

Tell me,what do 'some ' of those extra-solar planets do that do not
pass before a distant star ?,When you find your answer you will
discover how badly you treat the local event in our own solar system







and their
study yields highly accurate planetary radii. The transiting
planets discovered to date exhibit a variety of properties,
from the smaller rocky cores to inflated sizes that puzzle
even the experts. Dr Burke will review the recent
observations about extrasolar planets and provide details
of a unique robotic survey to search for them.

Lectures on a diverse selection of cosmic topics are held
the first Tuesday of every month at 8 PM in the STScI
Auditorium, located at 3700 San Martin Drive on the Homewood
campus of Johns Hopkins University. Admission is free and free
parking is available in the lot across the street.

This lecture will be webcast live. The recorded webcast will
also be available for viewing online the following day. To
view the webcast, you may need to download and install
software. See the web site listed below in advance for
details.

Further information and directions are available by
calling 410-338-4700 or on the internet at:

http://hubblesite.org/about_us/public-talks.shtml

NEXT MONTH: March 6, 2007
Benne Holwerda, Space Telescope Science Institute
On the Shores of Island Universes

On 5 Feb 2007 09:34:16 -0800, "oriel36"
wrote:

Astronomers have discovered about 200 planets around other
stars. Some of these extrasolar planets are found to transit
in front of their stars from our point of view........

You have to be kidding me !!!!!!!!!!!!!!!!!!!!!!!!1.

All planets of another solar system viewd from ours would pass in
front of the star,they would have to !!!!.

What are you talking about? The only time we can see exoplanets transit
their stars is when we lie on their orbital planes, which isn't common.
In most cases we are enough above or below their ecliptic that we can
never see transits. Even in our own solar system, each planet has an
orbit that lies on a slightly different plane than the others, so
transits are rare. Venus and Mercury pass from one side of the Sun to
the other many times for each time they actually transit it.

The same holds true for binary stars. Only a very small percentage are
eclipsing, because we are rarely on their orbital planes.

_________________________________________________

Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com

On Feb 5, 7:04 pm, Chris L Peterson wrote:
On 5 Feb 2007 09:34:16 -0800, "oriel36"
wrote:

Astronomers have discovered about 200 planets around other
stars. Some of these extrasolar planets are found to transit
in front of their stars from our point of view........

You have to be kidding me !!!!!!!!!!!!!!!!!!!!!!!!1.

All planets of another solar system viewd from ours would pass in
front of the star,they would have to !!!!.

What are you talking about?

http://www.kwastronomy.com/images/Ve...sit-3-1-2c.jpg

http://home.cogeco.ca/~astrosarnia/P...Web%20view.jpg

That image is of the faster Venus,in an inner orbital circuit,
overtaking the slower moving Earth which is in an outer orbital
circuit.We see Mercury and Venus overtake our orbital position with
the central stationary star in the background because it is common
sense and to have to explain it further would be insulting.

The so-called exoplanets orbiting distant stars would pass before the
central parent star because it is common sense ,to say that only
'some' planets are seen to pass before the star of another solar
system is ridiculous.





The only time we can see exoplanets transit
their stars is when we lie on their orbital planes, which isn't common.
In most cases we are enough above or below their ecliptic that we can
never see transits. Even in our own solar system, each planet has an
orbit that lies on a slightly different plane than the others, so
transits are rare. Venus and Mercury pass from one side of the Sun to
the other many times for each time they actually transit it.


You numbskulls won't even recognise that the orbital path of the Earth
causes the solar radiation/orbital shadow boundary to alter
latitudinally and attribute a pseudo-dynamic of variable axial tilt
the Earth even when there are images of the Earth from space to
demonstrate the point -

http://upload.wikimedia.org/wikipedi...easonearth.png

To keep your pseudo-dynamic of variable axial tilt you have to keep
the Earth moving in an orbital motion following the maximum diamater
of the Sun hence -

http://astrosun2.astro.cornell.edu/a...es/seasons.gif



The same holds true for binary stars. Only a very small percentage are
eclipsing, because we are rarely on their orbital planes.

_________________________________________________

Chris L Peterson
Cloudbait Observatoryhttp://www.cloudbait.com

It would be really astronomically significant if somebody started to
appreciate our own planet's motions before deciding to comment on some
othe planet never mind exoplanet.

On Feb 5, 7:04 pm, Chris L Peterson wrote:
On 5 Feb 2007 09:34:16 -0800, "oriel36"
wrote:

Astronomers have discovered about 200 planets around other
stars. Some of these extrasolar planets are found to transit
in front of their stars from our point of view........

You have to be kidding me !!!!!!!!!!!!!!!!!!!!!!!!1.

All planets of another solar system viewd from ours would pass in
front of the star,they would have to !!!!.

.. Even in our own solar system, each planet has an
orbit that lies on a slightly different plane than the others, so
transits are rare. Venus and Mercury pass from one side of the Sun to
the other many times for each time they actually transit it.


A geocentric transit* is actually a heliocentric event **,something
you guys missed with the Mercury event a few months ago.As an Earth
observer of a different solar system,the natural state of affairs is
that any planet orbiting a distant star would be subject to the same
conditions which produce the event in our own solar system.That is the
planets would be seen to move before the central parent star.


* planet crosses the face of the Sun (geocentric)

** inner planet overtakes outer planet with central Sun as a backdrop










The same holds true for binary stars. Only a very small percentage are
eclipsing, because we are rarely on their orbital planes.

_________________________________________________

Chris L Peterson
Cloudbait Observatoryhttp://www.cloudbait.com

On 5 Feb 2007 11:47:55 -0800, "oriel36"
wrote:

A geocentric transit* is actually a heliocentric event **,something
you guys missed with the Mercury event a few months ago.As an Earth
observer of a different solar system,the natural state of affairs is
that any planet orbiting a distant star would be subject to the same
conditions which produce the event in our own solar system.That is the
planets would be seen to move before the central parent star.

So you think that if we are situated such that we are looking down on an
exosolar system (plan view), that we'll see planetary transits? In our
system, all the planets are roughly on the same plane Earth is on. That
isn't usually the case for exosystems.

_________________________________________________

Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com

For whatever reason,the response did not show up on the google
newsreader


On Feb 5, 11:52 pm, Chris L Peterson wrote:
On 5 Feb 2007 11:47:55 -0800, "oriel36"
wrote:

A geocentric transit* is actually a heliocentric event **,something
you guys missed with the Mercury event a few months ago.As an Earth
observer of a different solar system,the natural state of affairs is
that any planet orbiting a distant star would be subject to the same
conditions which produce the event in our own solar system.That is the
planets would be seen to move before the central parent star.

So you think that if we are situated such that we are looking down on an
exosolar system (plan view), that we'll see planetary transits?

Easy to see where the misunderstanding comes from and although I may
dislike the geocentric idea of a 'transit' as nothing more than a
planet crossing the face of a star ,if one planet of a solar system
crosses the face then so will all planets of that system.

You have a valuable piece of information right there if you know how
to use the information properly for a transit in another solar system
indicates the plane of galactic orbital motion of our own solar system
along with the other solar system.




In our
system, all the planets are roughly on the same plane Earth is on. That
isn't usually the case for exosystems.

_


http://vt-2004.org/mt-2003/mt-2003-soho1999-normal.jpg


The 'transit' event in our solar system a few months ago brought into
focus the nature of orbital paths.The Earth's orbital motion and path
causes the solar radiation/orbital shadow boundary to alter its
position against the spinning Earth,like so -

http://upload.wikimedia.org/wikipedi...easonearth.png

Presently,you and your colleagues express the seasons by putting the
Earth's orbital motion along a route which follows the maximum
diameter of the Sun and then express the daylight/darkness variations
and seaonal weather patterns in terms of a pseudo-dynamic variable
axial tilt.

The following representation,although meant to express seasons in
terms of variable axial tilt,comes pretty close to what is actually
occuring.

http://www.astronomy.org/programs/se...ns-general.gif

The difference in the stationary Sun's height from June to January can
be atrributed to the path of the Earth either side of the Sun's
maximum diameter where the Equinox can be expressed as the point where
the Earth crosses the maximum diameter of the distant central star.

If you are to keep axial orientation fixed to Polaris,at least for the
purpose of an annual orbital circuit and the cause for seasons,you
cannot allow a pseudo-dynamic of variable axial tilt to our local
star.To keep everything square with Polaris and use the apparent
variations in the Sun's height,you drop variable axial tilt or any
correlation to the Sun via axial tilt and pick up on the change in
the Earth's orbital path due to its annual orbital motion.

It is a significant modification you know.






________________________________________________

Chris L Peterson
Cloudbait Observatoryhttp://www.cloudbait.com

Easy to see where the misunderstanding comes from and although I may
dislike the geocentric idea of a 'transit' as nothing more than a
planet crossing the face of a star ,

Yes, we agree.

if one planet of a solar system
crosses the face then so will all planets of that system.

No, they don't. Consider the plane of Neptune's orbit compared with
that of Earth. Only at the ascending and decending nodes would Neptune
apear to cross the face of our sun. (As seen from the ecliptic plane,
beyond Neptune's orbit).
As for exoplanets "..having to transit" you are just showing yourself
up as ignorant, a simpleton or a troll Gerald.
Do all external galaxies lie edge on to our own ? Do all exosystems
lie edge on to us ? Can a planet transit if its orbital plane lies
face on toward us ?
jc

On Feb 6, 12:11 pm, "John Carruthers"
wrote:
Easy to see where the misunderstanding comes from and although I may
dislike the geocentric idea of a 'transit' as nothing more than a
planet crossing the face of a star ,

Yes, we agree.


A transit for a heliocentric astronomer is when a faster moving planet
in an inner orbital circuit overtakes a slower moving orbital motion
of a planet in an outer orbital circuit.I have to descend to your
intellectually weak 'planets crosses the face of the Sun' when you
will not or cannot ascend to the proper heliocentric significance of
these events.


if one planet of a solar system
crosses the face then so will all planets of that system.

No, they don't.

An exoplanet of a different solar system seen to pass before a parent
central star will most certainly have all the planets of the system
follow roughly the same orbital path.If you believe otherwise then
good for you.






Consider the plane of Neptune's orbit compared with
that of Earth. Only at the ascending and decending nodes would Neptune
apear to cross the face of our sun. (As seen from the ecliptic plane,
beyond Neptune's orbit).
As for exoplanets "..having to transit" you are just showing yourself
up as ignorant, a simpleton or a troll Gerald.
Do all external galaxies lie edge on to our own ? Do all exosystems
lie edge on to us ? Can a planet transit if its orbital plane lies
face on toward us ?
jc

Tell all about your variable tilting Earth and how the Earth's orbital
path follows the plane of the maximum diameter of the Sun.

http://www.uwsp.edu/geo/faculty/ritt...s_seasons.html

The apparent change in altitude of the Sun is due to the change in the
orbital path of the Earth and has nothing whatsoever to do to a pseudo-
dynamic of variable axial tilt.I learned it through the heliocentric
appreciation of using modern imaging by way of the orbital motion of
planets overtaking our slower orbital motion with the central Sun as a
backdrop -

http://vt-2004.org/mt-2003/mt-2003-soho1999-normal.jpg

To your credit,at least you have broken with your celestial sphere/
constellational outlook in recognising orientation of our planetary
orbital motions with those of other systems in the galaxy and I have
been eager to get you to do this.Keep up the good work John and keep
challenging me into tidy up the sprawling network of information
involved into heliocentric reasoning and into the greater galactic
orbital motions of our and other solar systems around the galactic
axis.