NASA and ESA released this beautiful Hubble Space Telescope image on September 14, 2012. It’s a spiral galaxy called NGC 7090. Because we’re looking at it almost directly edge-on, we can’t see this galaxy’s spiral arms, which are full of hot, young stars. But we can see the flat disk of the galaxy and the bulge in its mid-section, which, if this galaxy is like others, is full of cool, old stars.
Edge-on spiral galaxy NGC 7090 as seen by the Hubble Space Telescope. Make larger. The image combines orange light (colored blue here), infrared (colored red) and emissions from glowing hydrogen gas (also in red). Image via ESA/Hubble & NASA, R. Tugral.Here’s a contrast, from just a few years ago, with the Hubble Space Telescope image. It’s a 2009 image of NGC 7090, from the Two Micron All Sky Survey. Yay Hubble!
Notice the intricate pattern of pinkish red regions over the whole galaxy. They indicate the presence of clouds of hydrogen gas, which in turn suggest where new stars are forming within NGC 7090. Other studies confirm that this galaxy is actively forming stars.
You can also see dark regions inside the disc of NGC 7090, located in lower half of the galaxy. These are dark dusty regions.
A version of this image of NGC 7090 was entered into the Hubble’s Hidden Treasures Image Processing Competition by contestant Rasid Tugral. Hidden Treasures was an initiative to invite astronomy enthusiasts to search the Hubble archive for stunning images that have never been seen by the general public.
Bottom line: This contains a beautiful Hubble Space Telescope image of edge-on spiral galaxy NGC 7090.
Deborah Byrd (asteroid 3505 Byrd) helps edit EarthSky.org and is a frequent host of EarthSky videos. Deborah created the EarthSky radio series in 1991 and founded EarthSky.org in 1994. Prior to that, she had worked for the University of Texas McDonald Observatory since 1976, and created and produced their Star Date radio series. She has won a galaxy of awards from the broadcasting and science communities, including having an asteroid named in her honor in 1990, a Public Service Award from the National Science Board in 2003, and the Education Prize from the American Astronomical Society in 2020. A science communicator and educator since 1976, Byrd believes in science as a force for good in the world and a vital tool for the 21st century. "Being an EarthSky editor is like hosting a big global party for cool nature-lovers," she says.
Like what you read? Subscribe and receive daily news delivered to your inbox.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.