tag:blogger.com,1999:blog-38085367.post5939855695439176406..comments2024-03-19T09:06:21.507-04:00Comments on Irtiqa: Ramadan by CCDSalman Hameedhttp://www.blogger.com/profile/04327330113822656571noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-38085367.post-89467256311575659122010-08-10T02:05:33.573-04:002010-08-10T02:05:33.573-04:00Alhamdullilah Ramadan is here againAlhamdullilah <a href="http://www.islamhadith.com/ramadan/" rel="nofollow">Ramadan</a> is here againAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-38085367.post-82172447218084646072010-08-08T10:25:15.572-04:002010-08-08T10:25:15.572-04:00Salih,
That's a great question, and one for wh...Salih,<br />That's a great question, and one for which I do not know the answer off hand. I would have to do some calculations. I will try to get back to you soon on this.<br />Best wishes. NGNidhal Guessoumhttps://www.blogger.com/profile/12638764091228065424noreply@blogger.comtag:blogger.com,1999:blog-38085367.post-33907208468171140292010-08-07T23:38:57.029-04:002010-08-07T23:38:57.029-04:00What would be the average time difference between ...What would be the average time difference between earliest topocentric conjunction and the last topocentric conjunction?MSM Salihnoreply@blogger.comtag:blogger.com,1999:blog-38085367.post-88922411045758727892010-08-04T02:55:09.414-04:002010-08-04T02:55:09.414-04:00Thanks Nidhal.
Tat was helpful. I was thinking may...Thanks Nidhal.<br />Tat was helpful. I was thinking may be we may actually be able to see the start of the day more than once depending on our alignment. :) <br /><br />"the readers' comments are always most welcome even for my own "3-d" view of things..." <br /><br />Awesome.<br />I remember one of my earliest interactions here was with emre on Islamic Science. But I was anonymous then. Ha ha. <br /><br />About 3-d views ... <br />I nearly get a headache every time I try to imagine more than 3 dimensions. I try to tell myself that just like speed and velocity are not the same, there may be more than 3 dimensions. Time apparently is one of them. <br /><br />Don't know about multiple dimensions but the multiuniverse theory is a weird concept. Sorry astronomers. :)Alinoreply@blogger.comtag:blogger.com,1999:blog-38085367.post-27928567047972074352010-08-03T18:44:18.503-04:002010-08-03T18:44:18.503-04:00Dear Ali,
Thanks for your kind comments and encou...Dear Ali,<br /><br />Thanks for your kind comments and encouragements; I do try to make my posts informative, and believe me the readers' comments are always most welcome even for my own "3-d" view of things...<br /><br />As to your question, well indeed the moon moves quickly away from the alignment (between the earth and the sun), so that moment of conjunction is brief and common to the whole earth. After that, both the moon and the earth will have moved (in opposite directions) w.r.t. the sun, and the alignment is broken. Hence the moment of geocentric conjunction is common, unique, and brief.<br /><br />Best wishes--Nidhal Guessoumhttps://www.blogger.com/profile/12638764091228065424noreply@blogger.comtag:blogger.com,1999:blog-38085367.post-90733339465895469172010-08-03T17:33:28.538-04:002010-08-03T17:33:28.538-04:00Thanks for your answer, Nidhal.
I enjoy reading ...Thanks for your answer, Nidhal. <br /><br />I enjoy reading yours and Salman's posts here. They help to broaden my general knowledge with valuable stuff. Thanks for keeping us posted. :) <br /><br />Now, to your answer. <br />So, while the topocentric alignment may depend on the observer's location, the geocentric alignment is unique you say. <br /><br />But, because the sun, the Earth and the moon are all moving bodies, and because they move at different speeds (not as a complete system or a single unit), I can't help but wonder why the geocentric alignment is a unique event. <br /><br />I am glad you don't mind me asking. I sometimes do have a lot of questions. :)Alinoreply@blogger.comtag:blogger.com,1999:blog-38085367.post-51925937042936748342010-08-03T12:34:38.698-04:002010-08-03T12:34:38.698-04:00Ali,
Actually, that's a very smart and pertine...Ali,<br />Actually, that's a very smart and pertinent question. Astronomers distinguish between the "geocentric" conjunction, when the moon crosses the plane that joins the center of the Earth with the center of the Sun from the "topocentric" conjunction ("topo" means "surface"), where a point or location on the Earth's surface gets aligned with the moon and the sun. The former is a unique moment, whereas the latter depends on each point/location. <br /><br />Accurate calculations that are given for specific locations must use the topocentric conjunction, but if one is speaking in general (as I was in my piece), then the geocentric conjunction gives a good indication and measure of what's to occur.<br /><br />I hope this gives some clarification, if not please do feel free to ask. I hope my writings help further people's understanding of various issues, and comments by the readers certainly bring some new perspectives for me.Nidhal Guessoumhttps://www.blogger.com/profile/12638764091228065424noreply@blogger.comtag:blogger.com,1999:blog-38085367.post-81388136223779483152010-08-03T00:16:08.648-04:002010-08-03T00:16:08.648-04:00"Indeed, the (geocentric) conjunction of the ..."Indeed, the (geocentric) conjunction of the Moon with the Sun and the Earth occurs on Tuesday August 10 at 03:08 GMT." <br /><br />I am not an astronomer and I have only pretty basic knowledge of astronomy. So my question may even be stupid. Yet, i will take the risk of asking. :) <br /><br />Given that the Earth is a (relatively) vast expanse of land and water, could it be possible that this conjunction occurs more than once? I mean depending on where you are looking at the moon from, or in other words, depending the observers angle, is it not possible to have this conjunction occurring more than once?Alinoreply@blogger.com