Messier 108 (also known as NGC 3556) is a barred spiral galaxy in the constellation Ursa Major. It was discovered by Pierre Méchain in 1781 or 1782. From the perspective of the Earth, this galaxy is seen almost edge-on.
This galaxy is an isolated member of the Ursa Major Cluster of galaxies in the Virgo supercluster. This galaxy has an estimated mass of 125 billion times the mass of the Sun and includes about 290 ± 80 globular clusters.
The Owl Nebula is a planetary nebula located approximately 2,030 light years away in the constellation Ursa Major. This object is known by the catalogue identifiers Messier Object 97 (M97) and NGC 3587. It was discovered by French astronomer Pierre Méchain on February 16, 1781. When William Parsons, 3rd Earl of Rosse observed the nebula in 1848, his hand-drawn illustration resembled an owl's head. It has been known as the owl nebula ever since.The nebula is approximately 8,000 years old. It is approximately circular in cross-section with a little visible internal structure.
Imaging telescopes or lenses: Takahashi FSQ106ED
Imaging cameras: ATIK 460 EX Mono
Mounts: Takahashi EM 400 Temma 2
Guiding telescopes or lenses: Takahashi FS 60 CB
Guiding cameras: QHY CCD QHY 5 II
Software: PHD 2, Sequence Generator Pro SGP
Filters: Ha 12nm, Astronomik OIII 12nm, Astronomik RGB 2"
Accessories: Robofocus Focuser, ATIK EFW2
Resolution: 2286x1704
Dates: April 16, 2015, April 17, 2015, April 18, 2015
Frames:
Ha 12nm: 10x1200"
Astronomik OIII 12nm: 7x1200"
Astronomik RGB 2": 27x300"
Integration: 7.9 hours
Avg. Moon age: 27.49 days
Avg. Moon phase: 5.54%
RA center: 168.153 degrees
DEC center: 55.272 degrees
Pixel scale: 1.767 arcsec/pixel
Orientation: 99.702 degrees
Field radius: 0.700 degrees
This galaxy is an isolated member of the Ursa Major Cluster of galaxies in the Virgo supercluster. This galaxy has an estimated mass of 125 billion times the mass of the Sun and includes about 290 ± 80 globular clusters.
The Owl Nebula is a planetary nebula located approximately 2,030 light years away in the constellation Ursa Major. This object is known by the catalogue identifiers Messier Object 97 (M97) and NGC 3587. It was discovered by French astronomer Pierre Méchain on February 16, 1781. When William Parsons, 3rd Earl of Rosse observed the nebula in 1848, his hand-drawn illustration resembled an owl's head. It has been known as the owl nebula ever since.The nebula is approximately 8,000 years old. It is approximately circular in cross-section with a little visible internal structure.
Imaging telescopes or lenses: Takahashi FSQ106ED
Imaging cameras: ATIK 460 EX Mono
Mounts: Takahashi EM 400 Temma 2
Guiding telescopes or lenses: Takahashi FS 60 CB
Guiding cameras: QHY CCD QHY 5 II
Software: PHD 2, Sequence Generator Pro SGP
Filters: Ha 12nm, Astronomik OIII 12nm, Astronomik RGB 2"
Accessories: Robofocus Focuser, ATIK EFW2
Resolution: 2286x1704
Dates: April 16, 2015, April 17, 2015, April 18, 2015
Frames:
Ha 12nm: 10x1200"
Astronomik OIII 12nm: 7x1200"
Astronomik RGB 2": 27x300"
Integration: 7.9 hours
Avg. Moon age: 27.49 days
Avg. Moon phase: 5.54%
RA center: 168.153 degrees
DEC center: 55.272 degrees
Pixel scale: 1.767 arcsec/pixel
Orientation: 99.702 degrees
Field radius: 0.700 degrees