The spider vane top left is close to good. The spider vane that's pointed to the bottom left looks to be slightly tilted. The spider vane that's pointing to the bottom right looks tilted with slight twist. It looks like to me Geoff that the spider vane that's pointing to the top right hand corner in your image is tilted, not twisted. If you are going to test it this way, put your telescope flat on a table, not pointing up because if you accidentally drop the spirit level you don't want it falling on to the primary mirror. Best to do it at each end of each spider vane. This was a rough guide for me to correcting the spider vanes in my 1200mm focal length Newt. “The diffraction spikes of the NASA/ESA/CSA James Webb Space Telescope, on the other hand, are six-pointed as a result of Webb’s hexagonal mirror segments and 3-legged support structure for the secondary mirror.To visually see which vane is out I put a small hand spirit level on the vane and sighted along the bottom of the spirit level that's sitting flat on the spider vane, it should point directly at the image of your spider vane on your primary mirror.
“The four spikes surrounding the stars in this image are created by four vanes inside Hubble supporting the telescope’s secondary mirror.”
They are the result of starlight interacting with the structure that supports Hubble’s secondary mirror. I think the images on the Youtube site were probably Hubble images being. “These prominent artifacts are created by starlight interacting with Hubble’s inner workings, and as a result they reveal hints of Hubble’s structure.” The spikes surrounding these stars are imaging artifacts, called diffraction spikes. If there is a JWT whole telescope image showing diffraction spikes in addition. “Hubble also left its own subtle signature on this astronomical portrait in the form of the diffraction spikes surrounding the bright stars.” “Data from the Advanced Camera for Surveys and Wide Field Camera 3 at infrared and visible wavelengths were layered to reveal rich details of this corner of the Orion Nebula,” the astronomers explained. The color results from assigning different hues to each monochromatic image associated with an individual filter. Six filters were used to sample various wavelengths. The new image is made up of observations from Hubble’s Advanced Camera for Surveys (ACS) and Wide Field Camera 3 (WFC3) in the infrared and optical parts of the spectrum. “Orion Variables are often associated with diffuse nebulae, and V 372 Orionis is no exception the patchy gas and dust of the Orion Nebula pervade this scene.” The Webb telescopes mirror is composed of 18 individual mirrors, each having a hexagonal rim, rather than the round rim. “These young stars experience some tempestuous moods and growing pains, which are visible to astronomers as irregular variations in luminosity.” SMACS 0723 is a galaxy cluster visible from Earths Southern Hemisphere, and has often been examined by Hubble and other telescopes in search of the deep past.
“V 372 Orionis is a particular type of variable star known as an Orion variable,” Hubble astronomers said in a statement. V 372 Orionis, also known as HD 36917 or Ori 47, is a so-called Orion variable - a variable star which exhibits irregular and eruptive variations in its brightness.īD-05 1307, otherwise known as 2MASS J05345223-0533085 or TIC 427373786, is classified as an emission-line star.īoth stars lie in the Orion Nebula, a colossal region of star formation approximately 1,450 light-years from Earth. The new Hubble image shows two stars: the bright star V 372 Orionis and its smaller companion called BD-05 1307. This Hubble image shows two stars: the Orion variable star V 372 Orionis and the emission-line star BD-05 1307.
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