Correct on all counts!

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Thanks. Here is the lullaby that we sing to our little son ervery night (only the first three and the last verse). It is a beautiful, beautiful song, but it has a tiny bit of bad astronomy in it - where?

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seems to be something about this line

half of a round and beautiful moon? Also, if it is dusk because the sun just set, and the moon has just risen (per the first line) then it cannot be half.


But truthfully, we can only ever see about 1/2 of the moon


I tried to pick out any differences between the English and German versions, but they were close enough.

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"I will do my best to understand and explain the universe from big to small without invoking miracles, unrepeatable events, or divine intervention. In place of those things I will use observations, mathematics, and science."


-Cross
My travel blog

Some of my Astrophotography


Those that lack education have a hard time understanding its value. - Cross

Well, the moon doesn't rise as much as the earth spins down, which brings the moon into view.

The world is not still, but spinning 1000 mph at the equator, plus hurtling through space around the sun at almost 67,000 mph, on average. Not to mention being dragged along by a migrating sun, which itself is being swept along the Orion arm of the galaxy, which is also orbiting its neighbors in the Local Group. If there is anything astronomy has taught us, it is that we are not still.

We can only see half the moon when it's full, which is only one day out of 29. That makes the timing of when to sing a lullaby a tricky matter.

The moon is not perfectly round, but it's close enough for the preschool set.

Simple, it fails heliochromologically - stars aren't really that golden, including the sun.

Not that the other answers aren't correct, we can't see a full 50% of the moon due to terrain variations.

"Still is the world" is too Geocentric.

I do like the poem.

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Lighten up! This is a stellar board! Author: duh.

"The Sun, with all the planets revolving around it, and depending on it, can still ripen a bunch of grapes as though it had nothing else in the universe to do..." Author: Galileo supposedly.

No one has mentioned libration, which allows us to see about 59% of the Moon.

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Half moon would not rise at sunset.

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That's the one, cross - I think the other ideas area bit too nitpicky. Sayings like "half/full moon or "moonrise" or questions of libration shouldn't be held against a poem.

However, in the evening, when you try to sing your children to sleep, you will never ever see a half moon just having risen. You don't sing these songs anymore when they start going to bed at two a.m., now do you?

Looking forward to your next question, cross.

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Thanks. Ok, not too tough I hope.


What do these two photos have in common?

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"I will do my best to understand and explain the universe from big to small without invoking miracles, unrepeatable events, or divine intervention. In place of those things I will use observations, mathematics, and science."


-Cross
My travel blog

Some of my Astrophotography


Those that lack education have a hard time understanding its value. - Cross

Neither are there?

__________________
"God bless thee, my son; I will give thee the greatest jewel I have ...
"The end of our foundation is the knowledge of causes, and secret motions of things; and the enlarging of the bounds of human empire, to the effecting of all things possible."Trying to make sense of computers, The Error Log.

I can see them fine on several computers???


here are some links

http://photos.crosscountryadventures...album=67&pos=8

http://photos.crosscountryadventures...lbum=67&pos=19

click them once you're on that page to see larger image.



once again, what do these photos have in common?

__________________
"I will do my best to understand and explain the universe from big to small without invoking miracles, unrepeatable events, or divine intervention. In place of those things I will use observations, mathematics, and science."


-Cross
My travel blog

Some of my Astrophotography


Those that lack education have a hard time understanding its value. - Cross

They didn't load when I saw it first, they did now.

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"God bless thee, my son; I will give thee the greatest jewel I have ...
"The end of our foundation is the knowledge of causes, and secret motions of things; and the enlarging of the bounds of human empire, to the effecting of all things possible."Trying to make sense of computers, The Error Log.

Perhaps they are centered on the same position? Picture one showing an overview, picture showing - probably - an open star cluster close up (NGC 457 being an option). The relative underexposure of image 1 (even M31, which should be there, I think, is missing) could be used to hide that fact.

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Non sunt multiplicanda entia praeter necessitatem.

nothing is hidden although a little quality was lost when I shrunk the first image.

The first exposure was taken with my sony digital with 1x zoom for 30 seconds in eastern Montana.

The second was taken with a ST8 ccd on a 14 inch S-C telescope at my university in St. Louis. I believe 120x zoom, but I'm not sure.



Arneb is along the right direction. And no, they are not centered on the same position.

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"I will do my best to understand and explain the universe from big to small without invoking miracles, unrepeatable events, or divine intervention. In place of those things I will use observations, mathematics, and science."


-Cross
My travel blog

Some of my Astrophotography


Those that lack education have a hard time understanding its value. - Cross

Is it Stock 2, the Muscleman (or Bug-Eyed Alien), an asterism in Cassiopeia?

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I think by that you mean the Owl Cluster already mentioned by Arneb (NGC 457)

nope. keep trying.

-It's one of my favorites

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"I will do my best to understand and explain the universe from big to small without invoking miracles, unrepeatable events, or divine intervention. In place of those things I will use observations, mathematics, and science."


-Cross
My travel blog

Some of my Astrophotography


Those that lack education have a hard time understanding its value. - Cross

The star cluster in the close-up shot is NGC 869, the western half of the Double Cluster in Perseus.

Dave Mitsky

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So what the two images have in common would be that they both have the double cluster/ the double cluster's position in the sky in them, despite not being centered on the same position?

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Non sunt multiplicanda entia praeter necessitatem.

It's moot now, as Dave has correctly identified it, but Stock 2 (OCL 348) is not the same as NGC 457 (OCL 321).

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