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 · Seqence Generator Pro
Filters: Baader Planetarium O3 1.25" 8.5nm · Baader Ha 1.25" 7nm
Accessory: TSOptics TS Off Axis Guider - 9mm
Dates:Feb. 7, 2020 , March 14, 2020 , March 15, 2020
Frames:
Baader Ha 1.25" 7nm: 36x600" (gain: 200.00) -20C bin 1x1
Baader Planetarium O3 1.25" 8.5nm: 43x600" (gain: 200.00) -20C bin 1x1
Integration: 13.2 hours
Darks: ~70
Flats: ~31
Flat darks: ~100
Avg. Moon age: 18.05 days
Avg. Moon phase: 75.25%
Astrometry.net job: 3359349
RA center: 7h 57' 56"
DEC center: +53° 25' 6"
Pixel scale: 0.493 arcsec/pixel
Orientation: -85.567 degrees
Field radius: 0.437 degrees
Resolution: 5313x3529
Locations: Nürnberg, Nürnberg, Bayern, Germany
Data source: Backyard
Object description (wikipedia.org):
Jones-Emberson 1 (PK 164+31.1), also known as the Headphone Nebula, is a 14th magnitude planetary nebula in the constellation Lynx at a distance of 1600 light years. It is a larger planetary with low surface brightness. The 16.8-magnitude central star is a very blue white dwarf.
Discovered in 1939 by R. Jones and R. Emberson, its "PK" designation comes from the names of Czechoslovakian astronomers Luboš Perek and Luboš Kohoutek, who in 1967 created an extensive catalog of all of the planetary nebulae known in the Milky Way as of 1964. The numbers indicate the position of the object on the sky. ("PK 164+31.1" basically represents the planetary nebula that when using the galactic coordinate system has a galactic longitude of 164 degrees, a galactic latitude of +31 degrees, and is the first such object in the Perek-Kohoutek catalog to occupy that particular one square degree area of sky).
| Astrofreunde-Franken |
| Nuremberg Public Observatory |
| Narrowband imaging |
Comments