Yea ! Read the title, removing the parentheses. That’s all I want to say, in this note. Oh, not quite all; add the phrase ‘on the moon’; that is the context.


I wonder who ever started this canard of ‘Earth Rise on Moon’ similar to the sunrise and moon rise that we see on earth. It must be since the day NASA of the USA released those brilliant photographs of blue half-crescent earth bewitchingly up there on the lunar sky – pictures taken by man when he flew round the moon thirty odd years ago. Everybody who has seen the images utters immediately ,”Earth rising over Moon’s horizon” – every body, including the National Geographic TV narrator in a telecast just the other day. I am puzzled
Ask me “ What’s the problem?”. I tell you:-
THERE IS NO EARTH RISE ON MOON ! In clearer words: Viewed from Moon the globe of earth does not rise and set in the manner that that we see the sun and the moon rise or set, traveling across our sky (of course relatively).

“What are you talking? What about the widely published picture of Earth hanging up above there over lunar horizon?”, you will ask me, I know. The answer is lying hidden in your question: The blue globe is just hanging there, NOT arrived there through any motion of rising from under the horizon, NOR about to move on to further positions towards the opposite horizon.
“ How do you know it? i.You have not been up there,
and ii. They have been up there and have taken pictures showing Earth at different altitudes.”

I shall answer ‘ii’ first. They photographed our globe from their crafting orbiting the moon, as it came round from ‘behind the moon’ and emerged on the side visible to us on earth. Yea! Ask NASA for confirmation! Take it from me: had they taken photographs from a fixed position (whether on the orbit, or on the surface of the moon) at different points of time, all the pictures would shown Earth unmoved, never moving. Heed me. Stand up at any location on the moon and look up. You will either see earth in a permanently fixed position in the sky, or you will find no earth at all, how so ever long you may choose to wait. Go to the moon any number of times and shoot an ’Earth from Moon’ photo from one and the same spot; all your pictures will show Earth in one and the same position.

How all our scientists who must be aware of this fact – and all those astronauts who must be knowing better – have been keeping silent all these decades, allowing the nonsense of ‘Earth Rise’ in books and on radio and TV , I am amazed. But then the unanswered earlier question – How do I know?

Ah! It is like this:-

You know Moon shows the same face to Earth as it goes round the latter in monthly revolution. It is like a cine camera mounted on a circular trolley rolling on around the hugging hero and heroine . Those who have seen so many Indian movies can visualize vividly how, as the camera, kept trained on the static heroic duo, moves along its circular path, the scenario is one in which the performing pair is always there fixed relative to the viewer(camera), but rotating about themselves as though standing on a rotating disc, while the background – e.g. the room walls, the furniture and what-have-you – would appear swirling around the artistes as well as the camera.

Just like that, if you go there, stand there at the centre of the visible disc of the moon and keep your eyes trained on the earth shining in the sky, then the earth will always be vertically above your head, at the zenith as they say, engaged in its own daily self-rotation, showing up Asia and the Indian Ocean, Europe and Africa, the Atlantic, the Americas and the Pacific successively again and again. The heavens in the background, the sun and the stars and the other planets, you will see revolving as a whole, rising and setting as they do on earth, but doing a full round over a period of four weeks. A risen sun takes two weeks to set and the set sun takes two weeks to rise! The Earth, standing there still, rather in the fixed vertical direction, waxes and wanes as Moon is seen doing on Earth, but its(earth’s) phases come on as continuous growth. From every sunset till the oncoming sunrise – [on the moon, remember] – the globe of earth grows from a half-crescent to a full disc for a period of 24 hours about midnight and then wanes back to half-crescent phase After sunrise, until the oncoming sunset it is ‘daylight’ on the moon and the earth – if visible in spite of the sun – will show continuous waning into invisibility during a 24-hour period about ‘midday’ and grow again to half-crescent form at sunset.. And once in a while, the midday sun will be eclipsed for a maximum of something short of 24 hours. And again once in a while during a 15x24-hour-long night on the moon, the earth that has been illuminating the night sky with its growing crescent size will, at the height of its growth to a full disc size, suddenly go dark in a moving circular patch of its disc. All this, remember, the Earth does, unbudging from the zenith!

If you are tired of craning your neck to look vertically above, move on to elsewhere on the visible side of the moon, from where the earth can be seen at an angle (like the published pictures of it over the horizon). You can lie on an easy chair and go on watching without spondylotic discomfort all the above-detailed scenes of celestial drama without any cut.

What about the performance of the sun and the eight planets other than earth? That is homework for those readers who have been attentive right up to this instant!

N.Balasubramanian

Attached Images

Earthrise.jpg (25.8 KB, 20 views)

The Earth DOES rise on the Moon, viewed from some spots anyway.

The Moon is tidally locked with the Earth, but since its orbit isn't a perfect circle, the part that points to the Earth never quite line-up perfectly.

Viewed from the Moon, it looks like the Earth is doing a small 8 shaped movement in the sky. If that "8" shaped motion happens to be near the horizon, you'll get an Earth-rise.

But like you said I think that this picture was taken when they were going around the Moon.

...and
Since no orbital objects truly rise, and Since the term "rise" is based on a point of view anyway, then from the astronauts point of view it does rise.

In the same way that ISS astronauts se 18 sunrises a day.

So whats the point? This subject is all trivial and nitpicky in my opinion. (but I comment anyway - stupid urges)

Sounds like an earth rise to me

As much as there is a moon rise here, I mean.

But welcome to BAUT, nbalu! I think you're going to have fun here.

This doesn't appear to be ATM material. There's nothing in the content of the OP that contradicts or adds to current theory. It's more an analysis of semantics for a certain expression related to things astronomical. It looks like it belongs in Astronomy or Space Exploration.

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Moved from ATM to Astronomy.

Also discussed here
Big Earth

Here is a quick animation I made with Celestia, so everything is "accurate"

http://s95147397.onlinehome.us/earthrise.avi

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The Senior Member has put my point succinctly. Thanks.

The apparemt motion of earth relative to the moon is NOT a rise and set type as the moon's and the sun's is relative to earth. From any given location on the visible side of the moon our globe will appear at a virtually fixed-for-ever position in the sky, doing only the small wobbling about as mentioned by Peptron

There are two events:
Event 1:- A guy is seen coming round the bend (in the road)
Event 2{- A guy standing beyond the bend - never moving - comes into (your) sight as you go running round the bend.

I agree with you about the moon* being essentially stationary in the lunar sky, nbalu. My comment was just that that photgraph of an earth rise was similar to the photograph of a moon rise down here.

If you're going to object to "sunrise" and "moonrise", I'm afraid you probably won't get very far. It's like tilting against the storm. Especially with all the geocentrists on board.

*and the Earth! Thanks, NEOWatcher

Well, failing the moon, there is always this

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