APOD and General Astronomy Discussion Forum
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You are very welcome.Boomer12k wrote:alter-ego: Thanks for the photo comparisons and the wider field one.
Now that's optimistic!And an Optimist could be an experienced Pessimist. It depends on the things you are learning.
I agree with Boomer12k on both counts.Boomer12k wrote:alter-ego: Thanks for the photo comparisons and the wider field one.
And an Optimist could be an experienced Pessimist. It depends on the things you are learning.
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I doubt it. The laser stimulates a specific narrow wavelength, which is filtered out by the correction optics. That light doesn't make it to the imaging camera. Presumably, the reference stars are distributed in the field- probably one in the center and the others in the quadrants, but more optimal configurations might be possible.Drifting wrote:So, are the telescope's five laser-generated stars visible in this image of the Orion Bullets??? If so it would be nice to know where in the image they are!
Looks to me like a shock front in the surrounding gas, not a jet.Chappy wrote:There is one star at the bottom left of this image (2nd star from left edge right at the bottom) that appears to have two jets of material, perfectly perpendicular to the star. These appear to be very similar in looks to x-ray images of jets emanating from galactic central regions. Is this just a chance overlay of foreground (or background) bullet material on an unrelated star? Must be otherwise I'm sure they would have been mentioned something about it..wouldn't they?
Chris Peterson wrote:I doubt it. The laser stimulates a specific narrow wavelength, which is filtered out by the correction optics. That light doesn't make it to the imaging camera. Presumably, the reference stars are distributed in the field- probably one in the center and the others in the quadrants, but more optimal configurations might be possible.Drifting wrote:So, are the telescope's five laser-generated stars visible in this image of the Orion Bullets??? If so it would be nice to know where in the image they are!
I wonder if 800 years from now the Homunculus Nebula in the Eta Carinae Nebula will resemble Orion "bullets" in the Orion Nebula.http://en.wikipedia.org/wiki/Homunculus_Nebula wrote:
<<The Homunculus Nebula is an emission nebula surrounding the massive star system Eta Carinae. The nebula is embedded within the much larger Eta Carinae Nebula, an ionized hydrogen (H II) region. The Homunculus (from the Latin meaning Little Man) is believed to have been ejected in an enormous outburst from Eta Carinae. Light from this event reached Earth in 1841, creating a brightening event in the night sky which was visible from the Earth's surface at the time. During the event (as seen from Earth) Eta Carinae briefly became the second-brightest star in the sky, after Sirius; but the ejected gas and dust have since obscured much of its light.>>
