Stellar Streams and Bar-driven Structure in NGC 2903 (@HalH75)

Celestial hemisphere: Northern · Constellation: Leo (Leo) · Contains: NGC 2903

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Stellar Streams and Bar-driven Structure in NGC 2903

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Stellar Streams and Bar-driven Structure in NGC 2903

Seen from a distance of about 30 million light years, NGC 2903 in Leo seems to emerge from the screen. With an inclination of 67.1 degrees, its prominent nucleus and bright spiral arms lie embedded in the broader, more diffuse tilted planes of unresolved stars evident in its outer regions. Delineated by dark dust lanes, the bright spiral arms host a bevy of young blue star clusters and reddish patches of glowing ionized hydrogen gas. The star-sprinkled spur that branches off the galaxy to the lower left extends well out into the circumgalactic medium as if being torn away by an unseen companion. A prominent (yellowish) central bar feeds gas into the chaotic inner region, fueling additional star-formation in a circumnuclear ring. The low surface brightness galaxy UGC 5806 can be seen also as the faint blue blob at the lower center of the field. This image utilized guided monochrome frames taken on moonless nights during March 2021 by an FLI ProLine 16803 camera mounted on Chilescope’s 0.5-m-aperture Telescope 3. Operating at f/3.8, unbinned 10-min exposures were acquired through H-alpha and red filters (stacked for 30-mins), and for 5-min through green and blue filters (stacked for 35 and 40-mins, respectively). After combining these greyscale data into mean band images using CCDStack, they were processed to color using Photoshop CC. The result was cropped to 24.3 arcmin x 19.4 arcmin, and the scene was oriented with north to the left and east down.

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Basic success
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Astrometry.net job	8370165
PixInsight job	n/a
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Stellar Streams and Bar-driven Structure in NGC 2903

Stellar Streams and Bar-driven Structure in NGC 2903

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Image Index:

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Stellar Streams and Bar-driven Structure in NGC 2903

Stellar Streams and Bar-driven Structure in NGC 2903

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