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NGC628, M74, The Phantom Galaxy. NGC 628 is a large galaxy, a grand design spiral so designated due to the dramatic and distinct spiral arms. It is, however, of low surface brightness, making it challenging for amateur astronomers to observe and photograph. It is in the constellation Pisces and is estimated to be about 32 million light-years away from Earth. Due to its size and proximity, it has a relatively large angular (that is, apparent on the sky) size and the galaxy's face-on orientation make it an ideal object for detailed investigations of its stellar population, galactic core and dust content. More about NGC628. The top images on the left are the NGC628 HST data obtained with HST ACS and WFC3, followed by the 3D printable stl file, [download]. and an image of a 3D print of that data. The next images are the NGC628 JWST data obtained with MIRI and NIRCAM, followed by the 3D printable stl file [download], and an image of a 3D print of that data. |
 
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NGC1300 is a Grand Design Barred Spiral galaxy.The spiral arms traced by star formation and dust extend all the way to the core of the galaxy as seen in the HST image. This galaxy is the model of such object with such large-scale bars across them. Notice that there are active bright star formation regions where the bar intersects the arms. Perhaps the gas in a bar is funneled inwards, and then circulate into the center. The supermassiv central black hole may have gas streaming into it from the bar, but the nucleus of NGC 1300 is not known to to be particularly active. The JWST MIRI NIRCAM image shows the spiral structure quite distinctly with the luminous core. |
 
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NGC1365 is very large barred spiral galaxy.The galaxy is more than twice the size of the Milky Way galaxy and has extensive open spiral structure. In the center, a promenent dust lane spirals across the core, following the main bar. NGC1365 has a supermassive black hole in the center. The second, smaller bar is at right angles to the main bar and is more diffuse in appearance. The second bar rotates more quickly than the larger bar and feeds material into the black hole. In barred spiral galaxies, the bar stimulates star formation. The HST WFC3UVIS at the top shows the central part of NGC 1465. The galaxy spiral arms extend well beyond this image. The second image is the 3Dprint of the HST data.. The third image is the JWST MIRI NIRCAM image which shows bubbles and filametary structures that host the starformation. Extremely bright star clusters are located near the core and more clusters, recently formed, lie along the outer parts of the bar in the area that connects to the spiral arms. These features are just barely visible in the HST image, as the dust heavily obscures the visible and UV light. The fourth image is the 3D print of the JWST data. |
 
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NGC1672, a Seyfert Galaxy NGC1672 is a nearby barred spiral galaxy. These type of galaxies have spiral arms that end at a barred structure across the center of the object, rather than continuing into the center. Barred spiral galaxies often show intense star format at the locations where the arms intersect the bar, and NGC 1672 is a beautiful example of that. NGC 1672 is rich with intense star formation regions and dark bands of interstellar dust especially noticible in the HST images. The dust is dark in the UV and optical but absobs that light and then glows in in the JWST infrared images. Notice that the dust lanes are located along the inner edges of the spiral arms delineated by the blue and red glowing red hydrogen gas signalling embedded star formation regions in the HST image.
NGC1672 is approximately 60 million light years from Earth in the constellation Doradus. More about NGC1672 HST images. More about NGC1672 HST/JWST image comparison. The top image on the left is the HST WFC3 UVIS image followed by the 3D print file from the image. |
 
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NGC 3351, a Face-On Barred Spiral Galaxy: NGC 3351 is a nearby barred spiral galaxy that is almost face on, showing its distinct spiral structure. It was discovered in 1781 by Pierre Méchain and observed by Charles Messier 4 days later, and so also called Messier 95. Its spiral arms are loosely wound, and a prominent dust lane crosses the galaxy along the bar through the core. This galaxy has been observed with many telescopes and exhibits an exquisite structure and active star formation. It was host to a supernova in 2012. Also see the NGC3351 Multiwavelength image - a composite of HST, VLT, and ALMA. |
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WR 140. This object is a binary star which exhibits very clear episodic dust formation due to
colliding winds caused by the interaction of the binary pair. The observation of WR140 was part of an Early Release Science Program of the James Webb Space Telescope. The science paper on this paper by Lau etal 2022 is published in Nature. The image shows clearly the successive rings of dust - 17 in total. Dust ring production occurs every 7.93 years. More about WR140. The top image on the left is the JWST MIRI image of WR140. False colors were assigned to the observations taken with the F770W, F1500W, and F2100W filters that correspond to blue, green, and red, respectivelyin the image. The second image is a cleaned image produced by Dr R. Hurt of Caltech. The image has been cleaned of surrounding stellar images not connected to WR140, and the point spread function of JWST has been removed to clarify the structure of the dust shells surrounding the object. This image was used to create the tactile 3D print. |
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WR 140 MIRI image and 3D print WR 140 MIRI 3D print WR140 image 3D print file [download]. WR 140 model of inner dust ring and plumes with corresponding 3D print WR140 computer model of inner dust ring alone 3D print file [download]. WR140 inner small plume 3D print file [download]. WR140 outer large plume 3D print file [download]. |
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VV191. Two telescopes, NASA’s James Webb Space Telescope and NASA’s Hubble Space Telescope were used to image the VV 191 pair of galaxies. The data include near-infrared light from Webb, and ultraviolet and visible light from Hubble. The data show the light from the bright eliptical galaxy at the left and the structure of the spiral arms and dust lanes in the gaalaxy to the right. This observation was described on the NASA Webb Blog on October 5, 2022. The second image image illustrates the Hubble + Webb image and its 3D tactile print. VV 191 3D print file (stl) [download]. |