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Author Topic:   Blood Moon
Faith 
Suspended Member (Idle past 1444 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 31 of 96 (769984)
09-27-2015 2:37 PM
Reply to: Message 29 by Tanypteryx
09-27-2015 1:53 PM


But doesn't the totality of an eclipse depend partly on the location of the viewer?
The last blood moon before these four was some years ago and I did go out to see it -- out to the parking lot -- but it was so high, directly overhead, it was tiny and I had to crane my neck uncomfortably to see it. But I did. A tiny little orange orb.
Let me guess: ALL blood moons are directly overhead.
I appreciate your photo because you bring it up close, close enough to see the blood red color in the craters, which justifies its name.
Edited by Faith, : No reason given.
Edited by Faith, : No reason given.
Edited by Faith, : No reason given.

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Tanypteryx
Member
Posts: 4344
From: Oregon, USA
Joined: 08-27-2006
Member Rating: 5.9


Message 32 of 96 (769986)
09-27-2015 2:48 PM
Reply to: Message 31 by Faith
09-27-2015 2:37 PM


But doesn't the totality of an eclipse depend partly on the location of the viewer?
Lunar eclipses look the same wherever they are visible. To see a solar eclipse you have to be in the path of the shadow cast by the moon on the earth.
The last 3 blood moons were Dec. 21, 2010, Jun. 15, 2011, and Dec. 10, 2011.
Let me guess: ALL blood moons are directly overhead.
Nope, in fact the eclipse tonight will already be started when the moon rises, when viewed from where I am.

What if Eleanor Roosevelt had wings? -- Monty Python
One important characteristic of a theory is that is has survived repeated attempts to falsify it. Contrary to your understanding, all available evidence confirms it. --Subbie
If evolution is shown to be false, it will be at the hands of things that are true, not made up. --percy

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Faith 
Suspended Member (Idle past 1444 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 33 of 96 (769988)
09-27-2015 3:05 PM


Just for reference, looking up the dates of the Jewish holidays:
Rosh Hashana Sep 14-15, 2015 M‑Tu The Jewish New Year
Yom Kippur Sep 23, 2015 W Day of Atonement
Sukkot Sep 28-29, 2015 M‑Tu Sep 30-Oct 4, 2015 W‑Su Feast of Tabernacles
Reminds me that Tabernacles is a week-long observance. So is Passover. I suppose it must count if a blood moon occurs anywhere in that week. But that's something I could look up. The Jewish day starts at sunset the previous day so this blood moon should be full just as the holiday is beginning.
I also looked up the dates of blood moon tetrads but none of the sources were quite what I had in mind. A few sites say there have been eight since the time of Christ, but I also saw seven mentioned.
I guess blood moons that don't occur in tetrads are a different category. For the prophecy of Christ's return only one blood moon with one solar eclipse is all that's required. However, the scripture doesn't say anything about their association with any holiday anyway, it just now seems clear that they usually/always are associated and that's interesting.
Edited by Faith, : No reason given.
Edited by Faith, : No reason given.

  
Faith 
Suspended Member (Idle past 1444 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


(1)
Message 34 of 96 (769989)
09-27-2015 3:08 PM
Reply to: Message 32 by Tanypteryx
09-27-2015 2:48 PM


Well I missed the last three then. The one I saw was some years ago.
If this one is closer larger and lower it might be worth going out to take a look.
Edited by Faith, : No reason given.

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dwise1
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Posts: 5930
Joined: 05-02-2006
Member Rating: 5.8


Message 35 of 96 (769992)
09-27-2015 3:45 PM
Reply to: Message 34 by Faith
09-27-2015 3:08 PM


Today's full moon will indeed be closer, the closest that it ever comes to the earth, since it is supposed to be at perigee. And, of course, the closer an object is, the larger it appears.

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Faith 
Suspended Member (Idle past 1444 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 36 of 96 (769993)
09-27-2015 3:53 PM
Reply to: Message 35 by dwise1
09-27-2015 3:45 PM


OK, keep getting good information here, thanks. I knew it was going to be a "supermoon" but I thought that might have something to do with the atmospheric effects at the horizon. Is this the same as the "harvest moon" then?

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NoNukes
Inactive Member


Message 37 of 96 (769996)
09-27-2015 4:40 PM
Reply to: Message 35 by dwise1
09-27-2015 3:45 PM


Today's full moon will indeed be closer, the closest that it ever comes to the earth, since it is supposed to be at perigee.
While this is true, I doubt that the difference in size is anything anyone would find remarkable. The entire range of variation in size from perigee to apogee is about 5.5%. Compared to the optical illusion that makes the moon appear to be larger when it is lower relative to the horizon, the actual variability in the moon size is barely perceptible.
I try not to miss eclipses, but it looks like it is going to be too cloudy to see the eclipse in my area this time. Hope the rest of you have better luck.
Edited by NoNukes, : No reason given.

Under a government which imprisons any unjustly, the true place for a just man is also in prison. Thoreau: Civil Disobedience (1846)
History will have to record that the greatest tragedy of this period of social transition was not the strident clamor of the bad people, but the appalling silence of the good people. Martin Luther King
If there are no stupid questions, then what kind of questions do stupid people ask? Do they get smart just in time to ask questions? Scott Adams

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Faith 
Suspended Member (Idle past 1444 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


(1)
Message 38 of 96 (769997)
09-27-2015 4:53 PM
Reply to: Message 37 by NoNukes
09-27-2015 4:40 PM


I would have thought that about the size difference too and maybe it does have something to do with the atmospheric effect but this is a harvest moon, which I believe is the closest moon of the year, and I saw one of those some twenty years ago as I was driving right toward it as it rose in front of me and that thing was HUGE. Not a blood moon but a bright white full moon, but HUGE. I don't even want to guess at how much of my visual field it occupied, but that tiny little blood moon I saw years ago was about the apparent size of a green pea and I feel like saying this was a beach ball in comparison. Probably an exaggeration, maybe a soccer ball, OK maybe a softball. But still there was a big difference. So I'll expect this one tonight to be pretty spectacular. I hope I don't forget.
Edited by Faith, : No reason given.
Edited by Faith, : No reason given.

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Dr Adequate
Member (Idle past 284 days)
Posts: 16113
Joined: 07-20-2006


Message 39 of 96 (769998)
09-27-2015 5:02 PM
Reply to: Message 14 by Jon
09-27-2015 7:47 AM


There's nothing wrong with seeing more in a lunar eclipse than a 'neat light show'.
You may think finding meaning in otherwise spiritless and mechanical processes is a 'vestige of our less enlightened past', but I think it's what makes us human and our lives worth living.
Though there are of course some poor fools who scrabble for meaning and significance in real things. How empty their lives must be, compared to one who knows that the blood moon is a sign to spill the bowels of the unbeliever upon the altars of Baal-Hamon, Lord of the Multitude.

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Faith 
Suspended Member (Idle past 1444 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 40 of 96 (769999)
09-27-2015 5:02 PM


SIgns in the Heavenlies: The Star of Bethlehem
Speaking of signs in the heavenlies as related to major Biblical prophecy, there's a documentary about the Star of Bethlehem I saw some years ago that I think is pretty interesting. A Christian lawyer did some research with astronomy software that pictures the position of the stars throughout the centuries back through the time of Christ and came up with some interesting correspondences between the starry orbs and the birth of Christ. Since the exact time of Christ's birth isn't known for sure he had to do a lot of maneuvering of the program to figure out the best time and there's room for slippage there of course, but anybody who's into astronomy might find his research interesting.
The Star of Bethlehem

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NoNukes
Inactive Member


Message 41 of 96 (770000)
09-27-2015 5:03 PM
Reply to: Message 29 by Tanypteryx
09-27-2015 1:53 PM


It seems like splitting hairs a bit, to me.
What I've read suggests that there is no way to be really certain about whether there was totality. The edge of the earth's umbra (the dark inner shadow) is slightly fuzzy due to the atmosphere and is not perfectly round because earth is not perfectly spherical. Nobody is completely sure that the eclipse was not total, but the best guess appears to be that about 99.9 percent of the moon was within the earth's umbra, which means not total.
Some observers reported that they never saw a complete darkening/reddening of the upper edge of the moon, but supposedly those observations may not be reliable.
Nitpicky? Perhaps, but there is nothing wrong with that. Just enjoy the eclipses as they occur. The April 4 eclipse was just as much a sight as any other lunar eclipse. Tiny deviations from totality do matter for solar eclipses, but not so much for lunar ones.
Edited by NoNukes, : Change moon's umbra to earth's umbra in one place.

Under a government which imprisons any unjustly, the true place for a just man is also in prison. Thoreau: Civil Disobedience (1846)
History will have to record that the greatest tragedy of this period of social transition was not the strident clamor of the bad people, but the appalling silence of the good people. Martin Luther King
If there are no stupid questions, then what kind of questions do stupid people ask? Do they get smart just in time to ask questions? Scott Adams

This message is a reply to:
 Message 29 by Tanypteryx, posted 09-27-2015 1:53 PM Tanypteryx has replied

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Coyote
Member (Idle past 2105 days)
Posts: 6117
Joined: 01-12-2008


(3)
Message 42 of 96 (770001)
09-27-2015 5:22 PM
Reply to: Message 29 by Tanypteryx
09-27-2015 1:53 PM


And now for something totally different...
It seems like splitting hairs a bit, to me.
Or, you could be biblical about it, ala Solomon, and split heirs.

Religious belief does not constitute scientific evidence, nor does it convey scientific knowledge.
Belief gets in the way of learning--Robert A. Heinlein
How can I possibly put a new idea into your heads, if I do not first remove your delusions?--Robert A. Heinlein
It's not what we don't know that hurts, it's what we know that ain't so--Will Rogers
If I am entitled to something, someone else is obliged to pay--Jerry Pournelle
If a religion's teachings are true, then it should have nothing to fear from science...--dwise1
"Multiculturalism" demands that the US be tolerant of everything except its own past, culture, traditions, and identity.

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Tanypteryx
Member
Posts: 4344
From: Oregon, USA
Joined: 08-27-2006
Member Rating: 5.9


Message 43 of 96 (770002)
09-27-2015 5:35 PM
Reply to: Message 41 by NoNukes
09-27-2015 5:03 PM


Nitpicky? Perhaps, but there is nothing wrong with that. Just enjoy the eclipses as they occur. The April 4 eclipse was just as much a sight as any other lunar eclipse. Tiny deviations from totality do matter for solar eclipses, but not so much for lunar ones.
I have always been a bit of an eclipse freak. I was on a mountain top near Richland, WA on Feb 26, 1979 during the total solar eclipse. It was colder than hell and foggy and we didn't think we were going to see it. About 1 minute before totality the clouds opened up and there it was with a rainbow ring around it from the fog. 2 minutes and 17 seconds of absolutely amazing experience. I shot 2 rolls of film through my Questar telescope. None of them were that great and the corona was not a spectacular one, but I would not trade that experience for anything. One other observation was that it looked like a 360-degree sunset around us because we were high enough to see the sun shining outside the shadow.
My wife also got some great shots with a normal lens of all the other people around us in the fog with the eclipse above them. I like her shots better than mine.
I will have another chance on August 21, 2017 when the path of totality is right across the middle of Oregon.

What if Eleanor Roosevelt had wings? -- Monty Python
One important characteristic of a theory is that is has survived repeated attempts to falsify it. Contrary to your understanding, all available evidence confirms it. --Subbie
If evolution is shown to be false, it will be at the hands of things that are true, not made up. --percy

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xongsmith
Member
Posts: 2578
From: massachusetts US
Joined: 01-01-2009
Member Rating: 6.8


Message 44 of 96 (770003)
09-27-2015 5:45 PM
Reply to: Message 38 by Faith
09-27-2015 4:53 PM


Because the moon will be just tad later than perigee, the shadow of the earth should drown it out in entirety, %100, here in the east coast side of the USA. Also it should be redder at peak than the usual moon eclipse, because of the tighter angles involved. Next will be in 2033, so tonight IS the time to catch it if you can.
I plan to have friends over and get out the telescope, with maybe only a 40mm eyepiece on it. Normally the full moon is a pain in the ass for us amateur astronomer types.

- xongsmith, 5.7d

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NoNukes
Inactive Member


Message 45 of 96 (770004)
09-27-2015 6:03 PM
Reply to: Message 43 by Tanypteryx
09-27-2015 5:35 PM


One other observation was that it looked like a 360-degree sunset around us because we were high enough to see the sun shining outside the shadow.
Wow! That does sound spectacular!
I've never witnessed a total solar eclipse. I told my wife that yesterday and that I would like to make plans to do whatever traveling is necessary to see one.
I have seen an annular solar eclipse.

Under a government which imprisons any unjustly, the true place for a just man is also in prison. Thoreau: Civil Disobedience (1846)
History will have to record that the greatest tragedy of this period of social transition was not the strident clamor of the bad people, but the appalling silence of the good people. Martin Luther King
If there are no stupid questions, then what kind of questions do stupid people ask? Do they get smart just in time to ask questions? Scott Adams

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