Godlike Productions - Conspiracy Forum
Users Online Now: 2,633 (Who's On?)Visitors Today: 1,003,570
Pageviews Today: 1,298,294Threads Today: 238Posts Today: 4,784
10:23 AM


Rate this Thread

Absolute BS Crap Reasonable Nice Amazing
 

Calculating the Position and Orientation of the Moon

 
Anonymous Coward
User ID: 35902674
United States
03/12/2013 08:35 PM
Report Abusive Post
Report Copyright Violation
Re: Calculating the Position and Orientation of the Moon
Your Mom went to the Moon!
Dr. AculaModerator
Senior Forum Moderator

User ID: 54326
United States
03/12/2013 08:49 PM

Report Abusive Post
Report Copyright Violation
Re: Calculating the Position and Orientation of the Moon
Get yourself a Yeswatch! I've had one from the "Zulu" collection (ZUlu is GMT time) for 600 cities for 100 years. And it's SIMPLE to use!

It tells you sunrise, sunset, moonrise, moonset and moon phase at a glance.

I can sit in a dark basement and tell you exactly where the moon is and what it looks like any time of the day or night.

I've had it for 5 years and it's my favorite material possession.

Their web site has the new, fashion models on the first page. Look for the "Zulu". It CAN be used as a dive watch, but they have a different concept of time so I wouldn't try it. The watch uses a digital readout and a ONE HAND, analog feature on top instead of two, traveling around the dial.

Plus they're the coolest company to deal with. When I've called them I've gotten directly to the owner/engineer/designer himself. Easily the beast investment I've made in 54 years.
 Quoting: Captain Spaulding 35977141


those are awesome!

i gotta see about getting me one grinning

EDIT: might be a long long while before i do though lol
[link to www.yeswatch.com]

cheers

Last Edited by Stonewall Jackson on 03/12/2013 09:00 PM
"My religious belief teaches me to feel as safe in battle as in bed. God has fixed the time for my death. I do not concern myself about that, but to be always ready, no matter when it may overtake me. ... That is the way all men should live, and then all would be equally brave." - General Thomas Jonathan "Stonewall" Jackson
Menow
User ID: 16788939
United States
03/12/2013 09:57 PM
Report Abusive Post
Report Copyright Violation
Re: Calculating the Position and Orientation of the Moon
I told you, just post the fact, the math formula and choose a latitude in Canada. NOT your crap.


.
 Quoting: DVCMCM


So now you admit the moon can be "sideways" anywhere but Canada?
Menow
User ID: 16788939
United States
03/12/2013 09:58 PM
Report Abusive Post
Report Copyright Violation
Re: Calculating the Position and Orientation of the Moon
Why people like you cannot take the time to educate yourself is beyond me
 Quoting: Anonymous Coward 1645786


I really pity people like you. You are no different than the people who were afraid of lightning because they thought the gods were angry.
 Quoting: Anonymous Coward 1645786



Sorry but your muppet friend astro did not demonstrate nothing but crap as always. Even a monkey should be offended by this.

Anyway, NOW, the only way to demonstrate you are smart, is just explain with a formula, why the moon should be seen in sideway position for example... in Canada!!! Pick up any city's latitude you want in that region!





Good luck.


.
 Quoting: DVCMCM


Umm... are you claiming that this vid was made in CANADA?
Dr. AstroModerator (OP)
Forum Moderator

User ID: 33360181
United States
03/12/2013 10:00 PM

Report Abusive Post
Report Copyright Violation
Re: Calculating the Position and Orientation of the Moon
Why people like you cannot take the time to educate yourself is beyond me
 Quoting: Anonymous Coward 1645786


I really pity people like you. You are no different than the people who were afraid of lightning because they thought the gods were angry.
 Quoting: Anonymous Coward 1645786



Sorry but your muppet friend astro did not demonstrate nothing but crap as always. Even a monkey should be offended by this.

Anyway, NOW, the only way to demonstrate you are smart, is just explain with a formula, why the moon should be seen in sideway position for example... in Canada!!! Pick up any city's latitude you want in that region!





Good luck.


.
 Quoting: DVCMCM


Umm... are you claiming that this vid was made in CANADA?
 Quoting: Menow 16788939


He is, and he's completely and laughably wrong.
Thread: Debunking the "Tilted Moon Filmed in Canada" Nonsense
astrobanner2
Menow
User ID: 16788939
United States
03/12/2013 10:05 PM
Report Abusive Post
Report Copyright Violation
Re: Calculating the Position and Orientation of the Moon
GOOD ONE!!!!!
 Quoting: Anonymous Coward 10372663


Good what? The shill bots are useless, what about you? Use your brain sometimes instead of being a sheep.


Did you ever read in a school book that the moon can rotate several degrees during the day because of astrotard's field rotation bullshit? Or just saw a photo in it like these days with the sidewaymoon with that explanation?

.
 Quoting: DVCMCM


Do you understand and accept that the moon has a north rotational pole which faces roughly in the same direction as Earth's north rotational pole- that is, toward Polaris?
BoxerLvr

User ID: 859551
United States
03/12/2013 10:24 PM
Report Abusive Post
Report Copyright Violation
Re: Calculating the Position and Orientation of the Moon
I finally got around to trying out your spreadsheet with a photo of the Moon I took last year. It works great! (when you enter the data in the correct spot....lol)

photo of the Moon taken on 9/9/2012: [link to i439.photobucket.com]

The spreadsheet says the moon was 43.04% full and 60.11 degrees tilted from vertical: [link to i439.photobucket.com]

Used gimp to measure the angle and got 29.92 degrees from horizontal, which equals 60.08 degrees from vertical. Well within the margin of error. : [link to i439.photobucket.com]

Last Edited by BoxerLvr on 03/13/2013 12:30 AM
It is precisely because it is fashionable for Americans to know no science, even though they may be well educated otherwise, that they so easily fall prey to nonsense. They thus become part of the armies of the night, the purveyors of nitwittery, the retailers of intellectual junk food, the feeders on mental cardboard, for their ignorance keeps them from distinguishing nectar from sewage. — Isaac Asimov
Dr. AstroModerator (OP)
Forum Moderator

User ID: 4211721
United States
03/12/2013 10:53 PM

Report Abusive Post
Report Copyright Violation
Re: Calculating the Position and Orientation of the Moon
I finally got around to trying out your spreadsheet with a photo of the Moon I took last year. It works great! (when you enter the data in the correct spot....lol)

photo of the Moon taken on 9/9/2012: [link to i439.photobucket.com]

The spreadsheet says the moon was 43.04% full and 60.11 degrees tilted from vertical: [link to i439.photobucket.com]

Used gimp to measure the angle and got 29.92 degrees from horizontal, which equals 60.08 degrees from vertical. Well within the margin of error. : [link to i439.photobucket.com]
 Quoting: BoxerLvr


Awesome! I'm thrilled to see that it's working great for you!
astrobanner2
Anonymous Coward
User ID: 36235598
Spain
03/15/2013 08:00 AM
Report Abusive Post
Report Copyright Violation
Re: Calculating the Position and Orientation of the Moon
GOOD ONE!!!!!
 Quoting: Anonymous Coward 10372663


Good what? The shill bots are useless, what about you? Use your brain sometimes instead of being a sheep.


Did you ever read in a school book that the moon can rotate several degrees during the day because of astrotard's field rotation bullshit? Or just saw a photo in it like these days with the sidewaymoon with that explanation?

.
 Quoting: DVCMCM


Do you understand and accept that the moon has a north rotational pole which faces roughly in the same direction as Earth's north rotational pole- that is, toward Polaris?
 Quoting: Menow 16788939


This guy (the duck) is an ignoramus (proved by his nonsense claims) but you must review your assertion.

The Earth's north polar axis points about 23.5 degrees away from the north ecliptic pole. However, the Moon's north polar axis points within 1.5 degrees of the north ecliptic pole. Thus, the Moon's north celestial pole points to the north ecliptic pole. The north ecliptic pole is the point in the Earth's (or Moon's) sky that marks the northern perpendicular to the Earth's orbital plane: about 23.5 degrees away from the Earth's north celestial pole, in the constellation of Draco.

[link to en.wikipedia.org]
nomuse (not logged in)
User ID: 2380183
United States
03/15/2013 11:49 AM
Report Abusive Post
Report Copyright Violation
Re: Calculating the Position and Orientation of the Moon
Yah, that helps.

Of course, it isn't the Moon's ROTATIONAL pole that is getting people in a tizzy. Few of them are that familiar with the Moon's features, as to be able to tell its orientation from them alone.

It is the orientation of the terminator, and that lies to the relationship between the plane of the Moon's orbit, and the plane of the ecliptic.

The Moon could easily be tilted 50 degrees in the plane of its own orbit, but the terminator would still show the same relationship to the Sun.



So, if my morning coffee has kicked in right, the surface features of the Moon should "wobble" by about 46 degrees over the course of a year. The position of the Moon in the sky should appear to shift North and South (and the path traced through the night sky) also in reference to that 23 degrees. But the orientation of the Moon, terminator and all, will depend on the latitude of the observer and the height in the sky.


On the other hand, I DID just wake up...
Anonymous Coward
User ID: 37090056
Spain
03/29/2013 01:57 PM
Report Abusive Post
Report Copyright Violation
Re: Calculating the Position and Orientation of the Moon
so how this 1991 crap helped 12 asstronots to land on moonkey

cruise
 Quoting: Anonymous Coward 34520000


They used a different method of determining the moon's position. It derived from the work of Ernest Brown ( [link to projecteuclid.org] ) which was further refined and fully implemented by Wallace Eckert in his "Improved Lunar Ephemeris." The book I used utilizes an analytical method which lends itself to spreadsheet implementation.
 Quoting: Dr. Astro


Semi-analytical: "(...) they are related to the JPL numerical integration DE 2000 through the involved constants."

M. Chapront-Touze and J. Chapront (1988). "ELP 2000-85: A semi-analytical lunar ephemeris adequate for historical times"
Astron. Astrophys. 190, 342-352: p. 350
Dr. AstroModerator (OP)
Forum Moderator

User ID: 4211721
United States
04/01/2013 07:06 AM

Report Abusive Post
Report Copyright Violation
Re: Calculating the Position and Orientation of the Moon
so how this 1991 crap helped 12 asstronots to land on moonkey

cruise
 Quoting: Anonymous Coward 34520000


They used a different method of determining the moon's position. It derived from the work of Ernest Brown ( [link to projecteuclid.org] ) which was further refined and fully implemented by Wallace Eckert in his "Improved Lunar Ephemeris." The book I used utilizes an analytical method which lends itself to spreadsheet implementation.
 Quoting: Dr. Astro


Semi-analytical: "(...) they are related to the JPL numerical integration DE 2000 through the involved constants."

M. Chapront-Touze and J. Chapront (1988). "ELP 2000-85: A semi-analytical lunar ephemeris adequate for historical times"
Astron. Astrophys. 190, 342-352: p. 350
 Quoting: Anonymous Coward 37090056


Yes, technically it is semi-analytical because it does use some constants, but for the purposes of implementation in a spreadsheet it functions in an analytical manner - no fixed cutoff dates for when the solution is valid, you can extrapolate as far into the future or past as you like and it will yield a number even though the accuracy of that number will decrease over millenia.
astrobanner2
Dr. AstroModerator (OP)
Forum Moderator

User ID: 4211721
United States
04/26/2013 10:56 AM

Report Abusive Post
Report Copyright Violation
Re: Calculating the Position and Orientation of the Moon
I finally got around to trying out your spreadsheet with a photo of the Moon I took last year. It works great! (when you enter the data in the correct spot....lol)

photo of the Moon taken on 9/9/2012: [link to i439.photobucket.com]

The spreadsheet says the moon was 43.04% full and 60.11 degrees tilted from vertical: [link to i439.photobucket.com]

Used gimp to measure the angle and got 29.92 degrees from horizontal, which equals 60.08 degrees from vertical. Well within the margin of error. : [link to i439.photobucket.com]
 Quoting: BoxerLvr


Awesome! I'm thrilled to see that it's working great for you!
 Quoting: Dr. Astro


While adding and testing new features to this spreadsheet I have discovered a bug; it will not yield accurate results if you set the current time for any date to 0hr 0min 0sec. For some reason it doesn't like that. It functions fine if you set it even just 1 second off from midnight, but it does not like midnight universal time. I had initially tested this sheet using real values and comparing to actual observations, but today I noticed the values "jump" at midnight UT if entered as 0 hours 0 minutes 0 seconds. The bug, whatever it is, only puts things off about a dozen arcseconds or so in RA and Dec (too small to matter for most purposes), but it's still annoying and it also affects the apparent az/alt values far more drastically. You can get around the bug by setting the time to the previous day at 23:59 universal time and setting the seconds to 60. That will yield correct values for midnight UT on the following day.

I'll try to track down the source of this bug later. If I can't figure it out by the time the new features are completed I'll implement a function in the new version to automatically set the time to 23:59:60 if 0:0:0 is entered.
astrobanner2

News








This Flag Represents The Principle, "Fight For What You Believe In."



This Is The Rebel Flag, "You're Either Free Or You're Not."

-------------