Starship Asterisk*

Anthony Barreiro wrote:("Leonids" are meteors from the Leonid meteor shower. I'm sure the same chemical processes take place in meteors from the Eta Aquariid and other meteor showers. And now I'm sure that Chris will correct me.)

Beyond wrote:I didn't know that's Anthony's avatar. All I could tell from his small picture is that it was a mountain. Thanks, Bruce.

BDanielMayfield wrote:

Ann wrote:The things they don't teach you in Swedish schools! What is Half Dome? Anthony, are you it???

Check out the "Yosemite" and "face of half-dome" links in the description. Half Dome is Anthony's avatar, which his arrows are pointing at. He could even be out climbing it on this fine spring day. Via the cable route, I hope.

Ann wrote:The things they don't teach you in Swedish schools! What is Half Dome? Anthony, are you it???

Anthony Barreiro wrote:My, this is a lovely picture. I'm honored. =====> =====> =====> =====> =====> =====> =====> =====>

BMAONE23 wrote:

Beyond wrote:Jumpin Jehoshaphat! The only thing missin is Yosemite Sam. A picture of him-->

Isn't that His 'Half Dome" hat we see in the distance?

Guest wrote:

Chris Peterson wrote:

JoKerMc wrote:This is indeed a very beautiful photo -- wonderful composition. I am curious, though, about the number of people that "bend" the Milky Way into an arc in the pictures they submit to APoD. When I look up at the sky at night, I see (or used to, before the light pollution in my area) a thing of perfect beauty. Any artificial changes seem like a detraction, I think. Can anyone tell me what I'm missing?.

The fact that you need to both bend and rotate your neck to observe the Milky Way visually should be a clue as to what is going on.

Consider the fact that both the horizon and the Milky way are essentially linear, but you never see the two as parallel, and they normally intersect in two places. Can you draw a pair of lines on a sheet of paper that intersect in two places but don't overlap?

Great, now if only someone could figure out how to do it to the actual sky, so that you needn't be bothered bending and rotating your neck in order to look at it.

Chris Peterson wrote:

JoKerMc wrote:This is indeed a very beautiful photo -- wonderful composition. I am curious, though, about the number of people that "bend" the Milky Way into an arc in the pictures they submit to APoD. When I look up at the sky at night, I see (or used to, before the light pollution in my area) a thing of perfect beauty. Any artificial changes seem like a detraction, I think. Can anyone tell me what I'm missing?.

The fact that you need to both bend and rotate your neck to observe the Milky Way visually should be a clue as to what is going on.

Consider the fact that both the horizon and the Milky way are essentially linear, but you never see the two as parallel, and they normally intersect in two places. Can you draw a pair of lines on a sheet of paper that intersect in two places but don't overlap?

zol wrote:Why is the meteor streak green? What is causing that color?

Leonid MAC wrote:Colors of meteors -- The color of many Leonids is caused by light emitted from metal atoms from the meteoroid (blue, green, and yellow) and light emitted by atoms and molecules of the air (red). The metal atoms emit light much like in our sodium discharge lamps: sodium (Na) atoms give an orange-yellow light, iron (Fe) atoms a yellow light, magnesium (Mg) a blue-green light, ionized calcium (Ca+) atoms may add a violet hue, while molecules of atmospheric nitrogen (N2) and oxygen atoms (O) give a red light. The meteor color depends on whether the metal atom emissions or the air plasma emissions dominate.

JoKerMc wrote:This is indeed a very beautiful photo -- wonderful composition. I am curious, though, about the number of people that "bend" the Milky Way into an arc in the pictures they submit to APoD. When I look up at the sky at night, I see (or used to, before the light pollution in my area) a thing of perfect beauty. Any artificial changes seem like a detraction, I think. Can anyone tell me what I'm missing?.

JoKerMc wrote:This is indeed a very beautiful photo -- wonderful composition. I am curious, though, about the number of people that "bend" the Milky Way into an arc in the pictures they submit to APoD. When I look up at the sky at night, I see (or used to, before the light pollution in my area) a thing of perfect beauty. Any artificial changes seem like a detraction, I think. Can anyone tell me what I'm missing?.

Beyond wrote:Jumpin Jehoshaphat! The only thing missin is Yosemite Sam. A picture of him-->

Ron-Astro Pharmacist wrote:I love the symmetry of water falling from a flowing stream to a falling meteor from a stream of comet dust. Nice touch that its source was from a wellspring in Aquarius. Great job Rogelio!!