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On this page I collect my observations of the galactic emission nebula NGC 7538 (Northern Lagoon Nebula, Sh2-158) in the constellation Cepheus.
The galactic emission nebula NGC 7538 (Northern Lagoon Nebula) in the constellation Cepheus is located close to the galactic emission nebula NGC 7635 (Bubble Nebula) and the well-known open star cluster M 52. With the Vespera Pro, it can be observed together with M 52 and NGC 7635, in a huge mosaic even together with the Cave Nebula C 9/Sh2-155.
The Dwarf mini mosaic also shows the nebula NGC 7635 (Bubble Nebula), part of the open star cluster M 52, the galactic emission nebula Sh2-157 (Lobster Claw Nebula), the open star cluster NGC 7510 near the Lobster Claw Nebula, the emission nebula (H II region) Sh2-159, and the emission nebula Sh2-161 (partially).
| NGC 7538 (Northern Lagoon Nebula, Sh2-158) | NGC 7635 (Bubble Nebula) | M 52 (NGC 7654) | Caldwell 9 (Cave Nebula, Sh2-155) | |||
| Size: 9 x 6' (Wikipedia) Distance: 9,900 (Wikipedia) Rating: --- |
Size: 15' x 8' (Wikipedia) Distance: 8,800 (Wikipedia) Rating: * (Stoyan) |
Size: 10' (Stoyan) Distance: 4,600 light years (Stoyan) Rating: *** (Stoyan) |
Size: 50' x 30' (Wikipedia) Distance: 2,400 light years (Wikipedia) Rating: --- |
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| Sh2-159 | Sh2-161 | Sh2-157 (Lobster Claw Nebula) | ||||
| Size: 7' (Google) Distance: 9,700-10,000 (Google) Rating: --- |
Size: 44' x 44' (Google) Distance: 9,130 light years (Google) Rating: --- |
Size: 60' x 50' (SkySafari) Distance: 8,000-9,000 light years (diverse sources) Rating: --- |
The galactic emission nebula NGC 7538 (Northern Lagoon Nebula) in the constellation Cepheus (Image Courtesy of SkySafari Astronomy, www.simulationcurriculum.com)
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NGC 7538 with M 52, NGC 7635, and C9, Aug 26, 2024 - 2400p (907 frames = 2.5 h), Dual Band Filter, processed |
NGC 7538 with M 52, NGC 7635, and C9, Aug 26, 2024 - 2400p (907 frames = 2.5 h), Dual Band Filter, processed and denoised (DN) |
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NGC 7538 with M 52, NGC 7635, and C9, Aug 26, 2024 - 2400p (907 frames = 9070s, about 2.5 h), processed and denoised (DN), background processed |
NGC 7538 with M 52, NGC 7635, and C9, Aug 26, 2024 - 2400p, marked with skysolver.app |
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NGC 7538, Aug 26, 2024 - 1800 (907 frames = 2.5h), Dual Band Filter, section from mosaic above, processed |
NGC 7538, Aug 26, 2024 - 1800 (907 frames = 2.5h), Dual Band Filter, section from mosaic above, processed and denoised (DN) |
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NGC 7538, Aug 27, 2024 - 1800 (301 frames = 50 min), Dual Band Filter, section, processed |
NGC 7538, Aug 27, 2024 - 1800 (301 frames = 50 min), Dual Band Filter, section, processed and denoised (DN) |
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NGC 7538 with NGC 7635, Sh2-157 and more, Oct 14, 2026 - original, mosaic, 2 h, DuoBand Filter, processed with Stellar Studio |
NGC 7538 with NGC 7635, Sh2-157 and more, Oct 14, 2026 - original, mosaic, 2 h, DuoBand Filter, processed with Stellar Studio and post-processed, made brighter |
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NGC 7538 with NGC 7635, Sh2-157 and more, Oct 14, 2026 - original, annotated with skysolver.app |
NGC 7538, section with NGC 7635 and more, Oct 14, 2026 - 1600, annotated with skysolver.app |