Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  M101  ·  NGC 5457  ·  NGC 5477  ·  NGC5447  ·  NGC5449  ·  NGC5450  ·  NGC5451  ·  NGC5453  ·  NGC5455  ·  NGC5461  ·  NGC5462  ·  NGC5471  ·  NGC5477  ·  Pinwheel galaxy
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Pinwheel galaxy and Globalstar satellite, 


            Thomas LELU
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Pinwheel galaxy and Globalstar satellite

Imaging telescopes or lenses: ASA - Astro Systeme Austria ASA 10'

Imaging cameras: Moravian G2-4000

Mounts: Paramount MyT

Guiding telescopes or lenses: ASA - Astro Systeme Austria ASA 10'

Guiding cameras: Moravian G1-0300

Focal reducers: ASA - Astro System Austria ASA 3" Wynne Reducer Korrektor 0,95x

Software: The SkyX Pro  ·  MaxPilote  ·  PIXINSIGHT PixInsinght 1.8 RC7

Filters: Astrodon Blue  ·  Astrodon Red  ·  Astrodon Luminance  ·  Astrodon Ha 5nm  ·  Astrodon Green

Accessory: X-rite i1 Display Pro  ·  EIZO ColorEdge CS2420

Dates:April 28, 2019

Astrodon Blue: 32x300" -15C bin 1x1
Astrodon Green: 32x300" -15C bin 1x1
Astrodon Ha 5nm: 36x900" -15C bin 1x1
Astrodon Luminance: 160x300" -15C bin 1x1
Astrodon Red: 32x300" -15C bin 1x1

Integration: 30.3 hours

Avg. Moon age: 23.54 days

Avg. Moon phase: 35.39%

Astrometry.net job: 2664414

RA center: 14h 3' 11"

DEC center: +54° 21' 23"

Pixel scale: 1.677 arcsec/pixel

Orientation: -173.307 degrees

Field radius: 0.624 degrees

Resolution: 1903x1885

Data source: Own remote observatory

Remote source: Non-commercial independent facility


Here is the galaxy M101 that we present more.
Many galaxies are in the background of the image including NGC5477.

In addition, the image shows the trace of a satellite just above, to the right of M101.
This is the Globalstar telecommunications satellite specializing in satellite telephony. It uses a constellation of low earth orbit telecommunications satellites to provide low-speed voice and data services to its customers with specialized mobile phones with coverage from all over the planet except polar latitudes. As its main competitor, Iridium, the company is established in the 1990s. The network becomes operational in 2000 after the deployment of 48 satellites.

On the picture, it is the GLOBALSTAR M030 satellite launched in July 1999.


Sky plot

Sky plot


Pinwheel galaxy and Globalstar satellite, 


            Thomas LELU