At a Glance
Object: NGC 5676
Type: Spiral Galaxy
Constellation: Boötes
Distance: 100 million light-years
Catalog: NGC
Best Season: Summer
NGC 5676 is a spiral galaxy located in the constellation Boötes. While Boötes is best known for the bright orange star Arcturus, it also contains many distant galaxies that sit far beyond the stars of our own Milky Way. NGC 5676 is one of those faint island universes, quietly tucked away in the spring and early summer sky.
This galaxy is especially interesting because it does not appear as a perfectly balanced spiral. NGC 5676 has a somewhat stretched and uneven appearance, with spiral structure that looks slightly disturbed. That asymmetry may be the result of gravitational interactions with nearby galaxies, which can pull on a galaxy’s arms, reshape its disk, and trigger areas of new star formation.
From Earth, NGC 5676 appears relatively small and faint, so it is not one of the big showpiece galaxies like M51 or M33. However, long-exposure astrophotography can reveal its elongated shape, brighter central region, and subtle outer structure. Objects like this are rewarding because they show that galaxies are not always neat, textbook spirals. Many are shaped by motion, gravity, and interactions over millions or billions of years.
NGC 5676 was discovered by William Herschel in 1785 during his surveys of faint nebulae and star clusters. At the time, objects like this would have appeared only as dim patches of light. Today, we know they are enormous galaxies filled with stars, gas, dust, and dark matter.
For backyard astrophotographers, NGC 5676 is a good example of a deeper galaxy target. It may not immediately grab attention with dramatic detail, but with enough exposure time and careful processing, its faint spiral form begins to stand out from the background sky.
Capture Details
| Telescope | Celestron Nexstar 8se |
| Reducer/Flattener | None |
| Filter | Optolong L-Pro |
| Camera | ZWO ASI294 MC Pro |
| Mount | Juwei-17 |
| Total Captured | 104 |
| Total Time | 3 hours 28 minutes |
| Capture Software | N.I.N.A. |
Guiding | PHD2, ZWO asi120mm mini, |
| Processed in | PixInsight |
Backyard Capture Notes
NGC 5676 is a challenging but interesting backyard galaxy target. Its small size and faint outer structure mean that steady tracking, sharp focus, and good sky conditions make a big difference. Processing should be kept gentle enough to preserve the uneven spiral shape without making the background sky too noisy. This is the kind of target where the reward comes from slowly pulling a distant, faint galaxy out of what first looks like empty space.