I was thinking that only one side of the planet could be seen, in much the same way we only see one side of the Moon. The Moon only shows one side to us; but all points on the Moon have both a day and a night, relative to the Sun. If the planet only shows one side to its sun, I agree, only that side would have daylight. The circulating atmosphere is an interesting question. Sincerely, J. David Baxter baxman2@comcast.net -------------- Original message -------------- From: utah-astronomy-request@mailman.xmission.com
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Today's Topics:
1. Re: Solar Caused Global Warming (Chuck Hards) 2. RE: Question On Recently Discovered Planet (Dunn, David) 3. Re: Question On Recently Discovered Planet (Chuck Hards) 4. Lunar targets for night of 5-23 (Kurt Fisher) 5. Re: more global warming (Lockman) 6. Re: more global warming (Lockman) 7. RE: Question On Recently Discovered Planet (Kim)
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Message: 1 Date: Tue, 22 May 2007 21:44:17 -0600 From: "Chuck Hards" Subject: Re: [Utah-astronomy] Solar Caused Global Warming To: "Utah Astronomy" Message-ID: <2541d8030705222044n545d7e23q1c898e8665d88b8e@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Paul Harvey = light entertainment. Rush Limbaugh = professional wrestling
On 5/22/07, Josephine Grahn wrote:
Any one who forgets that Rush describes himself as "Only entertainment" gets the exact quality of information that they deserve....
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Message: 2 Date: Wed, 23 May 2007 06:34:37 -0600 From: "Dunn, David" Subject: RE: [Utah-astronomy] Question On Recently Discovered Planet To: "Utah Astronomy" Message-ID:
Content-Type: text/plain; charset="us-ascii"
If the planet has the same face towards its star, it would always be light on that half of the planet and dark on the other side. Its day (one revolution on its axis would be the same as its year (one orbit around its star), 14 earth days. I suspect that it would be cold on the dark side of the planet.
Dave
-----Original Message----- From: utah-astronomy-bounces+david.dunn=albertsons.com@mailman.xmission.com [mailto:utah-astronomy-bounces+david.dunn=albertsons.com@mailman.xmissio n.com] On Behalf Of baxman2@comcast.net Sent: Tuesday, May 22, 2007 6:12 PM To: utah-astronomy@mailman.xmission.com Subject: [Utah-astronomy] Question On Recently Discovered Planet
I have a question on the recently discovered Earth-Like Planet. It is suppose to orbit its sun once every 14 Earth days. It is also suppose to have the same face to its sun, as it orbits it. That would mean on average that its daytime would be 7 Earth days, and its nightime would be 7 Earth days. On the daytime side, temperatures are comparable to Earth-like springtime temperatures. But how cold would the planet get during its nightime period? I realize that temperatures could vary by latitude.
Sincerely,
J. David Baxter baxman2@comcast.net _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.utahastronomy.com
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Message: 3 Date: Wed, 23 May 2007 06:50:49 -0600 From: "Chuck Hards" Subject: Re: [Utah-astronomy] Question On Recently Discovered Planet To: "Utah Astronomy" Message-ID: <2541d8030705230550n7f3306ffha42a6972c24d5dc4@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
That all depends on the atmosphere. If thick enough, and convective, it could actually be quite warm on the night side.
On 5/23/07, Dunn, David wrote:
If the planet has the same face towards its star, it would always be light on that half of the planet and dark on the other side. Its day (one revolution on its axis would be the same as its year (one orbit around its star), 14 earth days. I suspect that it would be cold on the dark side of the planet.
Dave
-----Original Message----- From: utah-astronomy-bounces+david.dunn=albertsons.com@mailman.xmission.com [mailto:utah-astronomy-bounces+david.dunn=albertsons.com@mailman.xmissio n.com] On Behalf Of baxman2@comcast.net Sent: Tuesday, May 22, 2007 6:12 PM To: utah-astronomy@mailman.xmission.com Subject: [Utah-astronomy] Question On Recently Discovered Planet
I have a question on the recently discovered Earth-Like Planet. It is suppose to orbit its sun once every 14 Earth days. It is also suppose to have the same face to its sun, as it orbits it. That would mean on average that its daytime would be 7 Earth days, and its nightime would be 7 Earth days. On the daytime side, temperatures are comparable to Earth-like springtime temperatures. But how cold would the planet get during its nightime period? I realize that temperatures could vary by latitude.
Sincerely,
J. David Baxter baxman2@comcast.net _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.utahastronomy.com
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Message: 4 Date: Wed, 23 May 2007 08:53:02 -0600 From: "Kurt Fisher" Subject: [Utah-astronomy] Lunar targets for night of 5-23 To: Message-ID: <200705230853.AA911409310@mail.csolutions.net> Content-Type: text/plain; charset=us-ascii
A night of showcase rimae with a major dome:
Valentine Dome Rukl 18 N30.5 E10.1 Rimae Sulpicius Gallus Rukl 23 N21 E10 Rima Hyginus Rukl 34-35 N7.4 E7.8 Rima Ariadeus Rukl 34-35 N6.4 E14
Later in the evening, sunrise over
Rimae Triesnecker Rukl 33 N4.3 E4.6 Rima Hadley Rukl 22 N25 E3
Possibly sunrise over C. Albategnius Rukl 44-45 S11.7 E4.3
Terminator near E3.4 near sunset.
Moon is 1 1/2 degs of Regulus - wide angle photo op.
Last night's occulation of Saturn by Moon -
world-wide photo collections at www.spaceweather.com
- Kurt
_______________________________________________ Sent via CSolutions - http://www.csolutions.net
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Message: 5 Date: Wed, 23 May 2007 08:14:03 -0700 From: Lockman Subject: Re: [Utah-astronomy] more global warming To: Utah Astronomy Message-ID: <46545A3B.4090208@aznex.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I agree with what Chuck is saying here. This debate isn't going to change the minds of those who have already formed conclusions. Then again there have been the posts from members welcoming the information because they haven't had access to one side or the other's information. Since there seems to be more than just those actually debating who are interested I say let the debate continue. There have been many threads on this site for which I had no personal interest. In those cases I would just note the subject and delete the message without reading it. Those of us who aren't interested in the debate could just do this.
Chuck Hards wrote:
Nobody on this list (that I'm aware of, anyway, my apologies if someone here is doing the science) is a practicing environmental scientist with the means to conduct meaningful research on the causes of global warming. Any "debate" here has always been just a case of dueling Websites, always carefully chosen to bolster the poster's personal stance. It goes nowhere, nobody's mind is ever changed. You may as well tell someone that they practice their religion incorrectly. See how far you get when you challenge someone's belief system.
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Message: 6 Date: Wed, 23 May 2007 08:22:24 -0700 From: Lockman Subject: Re: [Utah-astronomy] more global warming To: Utah Astronomy Message-ID: <46545C30.9040409@aznex.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
That was a good one. I fell for it hook line and sinker. Speaking of hooks lines and sinkers, where is Blue Lake? I'll be moving back to Utah shortly. It sounds like a good place to fish.
diveboss@xmission.com wrote:
Quoting Chuck Hards :
Nobody on this list (that I'm aware of, anyway, my apologies if someone here is doing the science) is a practicing environmental scientist with the means to conduct meaningful research on the causes of global warming.
Well, no, but I do have some recent experience. Let me shine a different more personal light on the subject. Anyone who has ever been to Blue Lake diving knows that it is a thermal lake. The average temperature of the water is 72-78 degrees year round. The underwater weed beds are thick and healthy. They are teaming with largemouth bass and bluegills. There is a large population of fresh water sponges that grows on everything near the numerous bubbling and rolling thermal hot pots that litter the bottom.
It had been 4 years since I last visited the lake, but this past week when I went back out to dive, something had changed. The lake didn't look the same. The walk to the lake was more swamp than I recall. Upon doing a "classic" slip and fall entry into the water it became very apparent that the water temperature had changed. The computer said 57 degrees. Underwater, the horror unfolded as I swam looking for something familiar. The once healthy weed beds were all but gone, and there were no huge blugills or bass. There is a fair population of small fry though, but that is about it.
Most of the really big underwater thermal rivers and hot pots are now quiet. I couldn't see any sponges. The bottom of the lake looked like a moonscape and deep with silt. The slightest fin kick brought forth a cloud of thick silt that blocked out the view. Even the depth had changed. In disbelief I did a controlled emergency swimming ascent and through my regulator yelled "Why God why???" And then it hit me, I was in the wrong lake. Okay that's my global warming experience. Anyone care to share?
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Message: 7 Date: Wed, 23 May 2007 09:37:36 -0600 From: "Kim" Subject: RE: [Utah-astronomy] Question On Recently Discovered Planet To: "'Utah Astronomy'" Message-ID: <200705231537.l4NFbDuh012513@cut.iserver.net> Content-Type: text/plain; charset="us-ascii"
Assuming an earth-like planet, with oceans and similar weather processes, I think even then the dark side would be very cold. With an atmosphere to moderate the weather, it likely wouldn't experience the extremes of the Moon or Mercury, but relative to our (human) needs for comfort, I still think the dark hemisphere would be cold. Consider how on earth a relatively small change in incoming radiation causes very large temperature swings. (Oh-oh, an oblique reference to global warming - unintended, I promise.) I know some science fiction writers have postulated that life on a planet that is tidally-locked with its parent star would likely inhabit a very narrow "ring" in the twilight zone between the fully-illuminated hemisphere (too hot) and the fully-dark hemisphere (too cold). Would be an interesting place to visit.
Kim
-----Original Message----- From: utah-astronomy-bounces+kimharch=cut.net@mailman.xmission.com [mailto:utah-astronomy-bounces+kimharch=cut.net@mailman.xmission.com] On Behalf Of Chuck Hards Sent: Wednesday, May 23, 2007 6:51 AM To: Utah Astronomy Subject: Re: [Utah-astronomy] Question On Recently Discovered Planet
That all depends on the atmosphere. If thick enough, and convective, it could actually be quite warm on the night side.
On 5/23/07, Dunn, David wrote:
If the planet has the same face towards its star, it would always be light on that half of the planet and dark on the other side. Its day (one revolution on its axis would be the same as its year (one orbit around its star), 14 earth days. I suspect that it would be cold on the dark side of the planet.
Dave
-----Original Message----- From: utah-astronomy-bounces+david.dunn=albertsons.com@mailman.xmission.com [mailto:utah-astronomy-bounces+david.dunn=albertsons.com@mailman.xmissio n.com] On Behalf Of baxman2@comcast.net Sent: Tuesday, May 22, 2007 6:12 PM To: utah-astronomy@mailman.xmission.com Subject: [Utah-astronomy] Question On Recently Discovered Planet
I have a question on the recently discovered Earth-Like Planet. It is suppose to orbit its sun once every 14 Earth days. It is also suppose to have the same face to its sun, as it orbits it. That would mean on average that its daytime would be 7 Earth days, and its nightime would be 7 Earth days. On the daytime side, temperatures are comparable to Earth-like springtime temperatures. But how cold would the planet get during its nightime period? I realize that temperatures could vary by latitude.
Sincerely,
J. David Baxter baxman2@comcast.net _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.utahastronomy.com
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End of Utah-Astronomy Digest, Vol 51, Issue 43 **********************************************