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NGC 7023
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| Telescope: | Ritchey Chretien GSO 203 mm , AP ccdT67 f5,6 | |
| Camera: | CCD QSI 583 wsg LRGB Astrodon Filters | |
| Mount: | Eq6 Pro | |
| Guide: | Off-axis guide | |
| Exposure: | 1200sec X 49 Luminance: (26: 24: 29) x 300 sec bin 2 ( R:G:B) |
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| Location: | Remote Digital Sky Observatory, Manciano (Gr) | |
| Sky: | good Sky | |
| Date: | 11,12,14,16,17,21 July 2015 | |
These clouds of interstellar dust and gas have blossomed 1,300 light-years away in the fertile star fields of the constellation Cepheus. Sometimes called the Iris Nebula, NGC 7023 is not the only nebula in the sky to evoke the imagery of flowers, though. Still, this deep telescopic view shows off the Iris Nebula's range of colors and symmetries in impressive detail. Within the Iris, dusty nebular material surrounds a hot, young star. The dominant color of the brighter reflection nebula is blue, characteristic of dust grains reflecting starlight. Central filaments of the dusty clouds glow with a faint reddish photoluminesence as some dust grains effectively convert the star's invisible ultraviolet radiation to visible red light. Infrared observations indicate that this nebula may contain complex carbon molecules known as PAHs. The pretty blue petals of the Iris Nebula span about six light-years.
Text courtersy APOD NASA
In the picture are some objects, probably galaxies, whose light to make it through the dark clouds