NGC 4565 (also known as the Needle Galaxy or Caldwell 38) is an edge-on spiral galaxy about 30 to 50 million light-years away in the constellation Coma Berenices.
It lies close to the North Galactic Pole and has a visual magnitude of approximately 10.
It is known as the Needle Galaxy for its narrow profile.

For this picture I selected only the best 257 images (from initial 404 frames of 180s.) on Luminance channel to stack.
It was a long and detailed process to confirm only the best of the best captures, I called them superframes πŸ˜€

(desc. credits: wikipedia)

I like so much to compare with my first image of this target www.astrobin.com/287894/B two years ago and see my progress πŸ˜€

A link to the annotated image:

Technical card
Imaging telescope or lens:Altair Astro RC250-TT 10″ RC Truss Tube

Imaging camera:ZWO ASI1600MM-Cool

Mount:Astro-Physics Mach-1 GTO CP4

Guiding telescope or lens:Celestron OAG Deluxe

Guiding camera:QHYCCD QHY5III174

Focal reducer:Riccardi Reducer/Flattener 0.75x

Software:Main Sequence Software Seqence Generator Pro, Astro-Physics AAPC, Pleiades Astrophoto PixInsight

Filters:Astrodon L Gen.2 E-series 36mm, Astrodon B Gen.2 E-series 36mm, Astrodon G Gen.2 E-series 36mm, Astrodon R Gen.2 E-series 36mm

Accessories:ZWO EFW, MoonLite NiteCrawler WR30

Resolution: 2283×1738

Dates:March 8, 2019, March 10, 2019, March 12, 2019, March 29, 2019

Astrodon B Gen.2 E-series 36mm: 77×180″ (gain: 75.00) -20C bin 1×1
Astrodon G Gen.2 E-series 36mm: 74×180″ (gain: 75.00) -20C bin 1×1
Astrodon L Gen.2 E-series 36mm: 257×180″ (gain: 75.00) -20C bin 1×1
Astrodon R Gen.2 E-series 36mm: 76×180″ (gain: 75.00) -20C bin 1×1

Integration: 24.2 hours

Avg. Moon age: 8.49 days

Avg. Moon phase: 20.99%

Astrometry.net job: 2621366

RA center: 189.082 degrees

DEC center: 25.992 degrees

Pixel scale: 1.006 arcsec/pixel

Orientation: 89.576 degrees

Field radius: 0.401 degrees

Locations: AAS Montsec, Γ€ger, Lleida, Spain

Data source: Own remote observatory

Remote source: Non-commercial independent facility

via Flickr https://flic.kr/p/RD2uhc

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