Imaging telescope or lens: Explore Scientific 152 mm Carbon Fiber
Imaging camera: ZWO ASI1600MM-Cool
Mount: Celestron CGX on Pier
Guiding telescope or lens: Orion 80mm Short Tube
Guiding camera: Starlight Xpress Lodestar x2
Integration: 18.9 hours
Avg. Moon age: 19.47 days
Avg. Moon phase: 76.85%
Bortle Dark-Sky Scale: 6.00
Astrometry.net job: 1693706
RA center: 344.391 degrees
DEC center: 62.578 degrees
Pixel scale: 0.648 arcsec/pixel
Orientation: 29.730 degrees
Field radius: 0.476 degrees
Locations: Future World Media Home Observatory, Taylor, MI, Michigan, United States
Had a very hard time pulling OIII out. They don't even list a magnitude for this DSO. Very faint.
Sh2-155 (also designated Sharpless 155 or S155) is a diffuse nebula in the constellation Cepheus, within a larger nebula complex containing emission, reflection, and dark nebulosity. It is widely known as the Cave Nebula, though that name was applied earlier to Ced 201, a different nebula in Cepheus. Sh2-155 is an ionized H II region with ongoing star formation activity, at an estimated distance of 725 parsecs (2400 light-years) from Earth.
Sh2-155 was first noted as a galactic emission nebula in 1959 in the extended second edition of the Sharpless catalogue, being a part of the much larger Cep OB3 Association. Although Sh2-155 is relatively faint for amateur observation, some of its structure may be seen visually through a moderately sized telescope under dark skies.
Sh2-155 lies at the edge of the Cepheus B cloud (part of the Cepheus molecular cloud), and is ionized by young stars from the Cep OB3 association. It has been suggested that radiation from the hot O-type star HD 217086 is compressing the region, triggering the formation of a new generation of stars. A study of the region's young stellar objects by the Chandra X-ray Observatory and Spitzer Space Telescope shows a progression of stellar ages in front of the cloud, supporting the hypothesis of triggered star-formation.
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Currently, your AstroBin index is 0.00.