Jupiter with its GRS setting at the limb. White ovals, barges and festons could be seen at the belts. And also Mars was imaged (same equipment) after my sessions with Jupiter with some albedos features could be seen from the red planet. Another Cross Your Eyes presentation was done on Jupiter sit back and enjoy!.
IC5070 in Hubble Palette Large image
Copyright: Chris Baron [attachment=5]IC5070_Baron.jpg[/attachment]
Star Rotation and South Celestial Pole from Vingerclip, Namibia
Copyright: Andy Bender [attachment=4]Fingerklipsumme.jpg[/attachment]
Tidal Streams in M83 and Rich Galaxy Field Larger image
Copyright: Marco Lorenzi [attachment=3]m83_halrgb_closeup.jpg[/attachment]
Moon between Heaven and Earth
Copyright: Pierre Heinz [attachment=2]Moon_caught_Heinz.jpg[/attachment]
M17: The Swan Nebula in Sagitarius http://www.malagon.webs.com
Copyright: Carlos Malagón and Nicolás Villegas [attachment=1]la foto.jpg[/attachment]
Narrowband Mosaic of North American/Pelican Nebulas http://www.eprisephoto.com
Copyright: Anna Morris [attachment=0]Mosaic Project - HST image-med.jpg[/attachment]
That's a lovely Moon, Robert Arn, and that's a great aurora, Juan Carlos Casado.
Ann
Re: Recent Submissions
Posted: Tue Aug 23, 2011 9:36 am
by ki_cz
Would like to post a few more images from Prague in the Czech Republic. Once again primarily planned moon and sun images. Ordered from oldest to most recent:
Click on the image above to see a higher-resolution version of the image with more information.
Re: Recent Submissions
Posted: Wed Aug 24, 2011 5:57 pm
by Ann
There are many nice images here!
Anna, it's so nice to see a fine astrophoto taken by a woman!
Marco Lorenzi, that's a delightful portrait of M83. I love it.
Keith Egger, I love yur portrait of the various nebulosities of Sharpless 2-82. There is unilluminated dark nebulosity, blue reflection nebulosity and red emission nebulosity testifying to the presence of a really hot blue star!
And who can resist rotating Jupiter?
Ann
Re: Recent Submissions
Posted: Wed Aug 24, 2011 6:06 pm
by zerro1
Ann wrote:There are many nice images here!
Anna, it's so nice to see a fine astrophoto taken by a woman!
Ann
Make that an 18 panel narrow band mosaic Astrophoto! Huge undertaking! Well Done Anna!!
Aurora over Evangeline Beach, Nova Scotia
Copyright: Roy Bishop [attachment=2]Aurora_Roy_Bishop 2011.8.5.jpg[/attachment]
Pileus Iridescent Cloud Over Mexico http://www.panoramio.com/photo/57297187
Copyright: Mario A. Leon Quezada [attachment=1]iridescent_Leon_Quezada.jpg[/attachment]
Jason Jennings, I love your Snake Nebula image. The tendrils of dust stand out so clearly, the background of stars is beige from the myriad of old yellow stars in the bulge of our galaxy, and the blue light of the young stars in the foreground - Theta Ophiuchi is the brightest of them - is quite magical. I think that the slightly fuzzy white blob at eleven o'clock might be globular cluster NGC 6325.
Yesterday, "amateur" astronomer César Cantú took an amazing mosaic image of the Sun, showing our star boiling and writhing under its own dynamic forces:
That hardly looks like the Sun, does it? That’s because he used a filter that blocks all the light we see except for a very narrow slice of color in the red part of the spectrum. That filter lets through only light from warm hydrogen, at just the right temperature to allow the electrons in the hydrogen atoms to drop from the third energy level to the second. You can picture the electron in an atom like it’s on a staircase, and only allowed (by quantum mechanics) to sit on a step, or move from one to the other. It takes energy to move it up a step, and gives off energy when it moves down. When it jumps down from the third to the second, it emits a photon — a particle of light — at a wavelength of 656.3 nanometers, and astronomers call this light Hα (H alpha).
The gas on the Sun’s surface emitting Hα is under furious stirring due to magnetic fields and other forces, and you can see that in the twisted, roiling appearance in this photo. I particularly like the dark arc just left of center: that’s a filament, an eruption of gas off the surface. It’s about 150,000 kilometers (90,000 miles) long! It’s a bit cooler than the surface material, so it’s darker, and we see it in silhouette. When those happen on the limb of the Sun they’re called prominences, and you can see several of those in this picture too.
Amazingly, this picture (which is really a mosaic of six separate shots) was taken using a telescope with only a 90 mm (3.5 inch) lens. The Coronado 90 mm telescope is a favorite of sidewalk astronomers, since it shows the Sun in amazing detail, but is totally safe to look through since it blocks almost all the Sun’s light. It’s common to see them at planetaria and museums, set up where passers-by can get a quick glimpse of the Sun. For most, it’s the first time they ever see the might and power of a star only 150 million kilometers away.
And if you want a sense of scale here, in the picture above the Sun is about 450 pixels across. On the same scale, our entire planet Earth would be only about 4 pixels across.
Just in case you were feeling big and important today.
Congratulations, mexhunter!
Re: Recent Submissions
Posted: Thu Aug 25, 2011 10:20 am
by owlice
Yay! Way to go, mexhunter! Congrats!
Re: Recent Submissions
Posted: Thu Aug 25, 2011 1:58 pm
by Beyond
Hmm... Upon seeing mexhunter's photo of the sun, my first thought was a vanilla wafer that's been sitting out in the sun too long.