Imaging telescopes or lenses: GSO 8" f/5 Newton
Imaging cameras: ZWO ASI 183 MM PRO
Mounts: SkyWatcher NEQ6 Pro Goto
Guiding telescopes or lenses: GSO 8" f/5 Newton
Guiding cameras: Astrolumina Alccd5L-IIc
Focal reducers: Pal Gyulai GPU Aplanatic Koma Korrector 4-element
Software: PhotoShop CS5 · PHD2 Guiding · FitsWork 4 · DeepSky Stacker Deep Sky Stacker 3.3.4 · CCDCiel
Filters: Baader R 1.25'' CCD Filter · Baader B 1.25'' CCD Filter · Baader G 1.25'' CCD Filter · Baader L 1.25'' Filter
Accessory: TSOptics TS Off Axis Guider - 9mm
Dates:April 23, 2020
Frames:
Baader B 1.25'' CCD Filter: 8x300" (gain: 53.00) -20C bin 1x1
Baader G 1.25'' CCD Filter: 8x300" (gain: 53.00) -20C bin 1x1
Baader L 1.25'' Filter: 18x300" (gain: 53.00) -20C bin 1x1
Baader R 1.25'' CCD Filter: 8x300" (gain: 53.00) -20C bin 1x1
Integration: 3.5 hours
Darks: ~37
Flats: ~31
Flat darks: ~100
Avg. Moon age: 0.35 days
Avg. Moon phase: 0.14%
Astrometry.net job: 3486651
RA center: 14h 3' 8"
DEC center: +54° 21' 35"
Pixel scale: 0.494 arcsec/pixel
Orientation: -42.866 degrees
Field radius: 0.421 degrees
Resolution: 3569x4996
Locations: Kreben, Kreben(Wilhermsdorf), Bayern, Germany
Data source: Traveller
Object description (wikipedia.org) :
The Pinwheel Galaxy (also known as Messier 101, M101 or NGC 5457) is a face-on spiral galaxy distanced 21 million light-years (six megaparsecs) away from Earth in the constellation Ursa Major. Discovered by Pierre Méchain on March 27, 1781, it was communicated to Charles Messier who verified its position for inclusion in the Messier Catalogue as one of its final entries.
On February 28, 2006, NASA and the European Space Agency released a very detailed image of the Pinwheel Galaxy, which was the largest and most detailed image of a galaxy by Hubble Space Telescope at the time. The image was composed of 51 individual exposures, plus some extra ground-based photos.
Description: decreased saturation (blue)
Description: modified color
| Astrofreunde-Franken |
| Nuremberg Public Observatory |
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