kevan.noble
SADR Butterfly and Crescent Nebulae
The Sadr Region features a rich complex of dust clouds and glowing nebulosity set against the plane of the Milky Way. It harbours a number of notable deep sky objects. Within this capture you can see IC 1318 The Butterfly Nebula, NGC 6888 The Crescent Nebula, open cluster NGC 6910 to name a few.
The young open cluster NGC 6910 occupies 10 arc minutes of the apparent sky and has a visual magnitude of 7.4. It lies half a degree east-northeast of Sadr and may be physically related to the Gamma Cygni Nebula. The cluster contains a number of OB stars, as well as supergiant stars, including the red supergiant RW Cygni. It is the core cluster of the Cygnus OB9 stellar association. It was discovered by William Herschel in October 1786.
Collinder 419, also within the image, is a young open cluster that surrounds the massive O-class star HD 193322. The cluster has a visual magnitude of 7.60. The nearby open cluster Collinder 421 is fainter, with an apparent magnitude of 10.10.
IC 1311 is another open cluster that can be seen in the region. With an apparent magnitude of 13.10, it is considerably fainter than the others and embedded in nebulosity.
Total of 22 hours capture over May, June and July. Originally an HOO project, but decided to add Sulphur ii and RGB Stars.
Sky Quality 19.67 Magnitude Class 5 Bortle.
Astromiks 50mm SHO 6nm Filters and RGB Filters
30 x Darks, Flats and Bias
ZWO ASI6200MM Pro
ZWO 7x2" EFW
ZWO EAF
Williams Optics GT81 IV
WO 6A III Field Flattener 0.8
HEQ5 Pro Rowan
ASIAIR Pro
Astro Pixel Processor
Pixinsight
Photoshop 2022
SADR Butterfly and Crescent Nebulae
The Sadr Region features a rich complex of dust clouds and glowing nebulosity set against the plane of the Milky Way. It harbours a number of notable deep sky objects. Within this capture you can see IC 1318 The Butterfly Nebula, NGC 6888 The Crescent Nebula, open cluster NGC 6910 to name a few.
The young open cluster NGC 6910 occupies 10 arc minutes of the apparent sky and has a visual magnitude of 7.4. It lies half a degree east-northeast of Sadr and may be physically related to the Gamma Cygni Nebula. The cluster contains a number of OB stars, as well as supergiant stars, including the red supergiant RW Cygni. It is the core cluster of the Cygnus OB9 stellar association. It was discovered by William Herschel in October 1786.
Collinder 419, also within the image, is a young open cluster that surrounds the massive O-class star HD 193322. The cluster has a visual magnitude of 7.60. The nearby open cluster Collinder 421 is fainter, with an apparent magnitude of 10.10.
IC 1311 is another open cluster that can be seen in the region. With an apparent magnitude of 13.10, it is considerably fainter than the others and embedded in nebulosity.
Total of 22 hours capture over May, June and July. Originally an HOO project, but decided to add Sulphur ii and RGB Stars.
Sky Quality 19.67 Magnitude Class 5 Bortle.
Astromiks 50mm SHO 6nm Filters and RGB Filters
30 x Darks, Flats and Bias
ZWO ASI6200MM Pro
ZWO 7x2" EFW
ZWO EAF
Williams Optics GT81 IV
WO 6A III Field Flattener 0.8
HEQ5 Pro Rowan
ASIAIR Pro
Astro Pixel Processor
Pixinsight
Photoshop 2022