Hemisphere:  Northern  ·  Constellation: Coma Berenices (Com)  ·  Contains:  IC 3508  ·  IC 3531  ·  IC 3533  ·  IC 3536  ·  IC 3543  ·  IC 3546  ·  IC 3565  ·  IC 3571  ·  IC 3582  ·  IC 3599  ·  NGC 4555  ·  NGC 4562  ·  NGC 4565  ·  Needle Galaxy
Needle Galaxy, 



    
        

            Aaron Freimark
Powered byPixInsight

Needle Galaxy

Needle Galaxy, 



    
        

            Aaron Freimark
Powered byPixInsight

Needle Galaxy

Technical card

Imaging telescopes or lenses: Williams Optics GT71

Imaging cameras: ZWO ASI1600MM-PRO

Mounts: SkyWatcher EQ6R-Pro

Guiding telescopes or lenses: Williams Optics Uniguide 50mm

Guiding cameras: ZWO ASI120MM-Mini

Focal reducers: Williams Optics Flat 6A III

Software: CloudMakers, s. r. o. AstroTelescope  ·  CloudMakers, s. r. o. AstroImager  ·  CloudMakers, s. r. o. AstroGuider  ·  IndigoSky  ·  PixInsight

Filters: ZWO B 1.25"  ·  ZWO G 1.25"  ·  ZWO R 1.25"  ·  ZWO L 1.25"

Accessory: Pegasus Astro Powerbox Advanced  ·  Raspberry Pi Foundation Raspberry Pi 4 4GB


Dates:March 21, 2021

Frames:
ZWO B 1.25": 48x60" (48')
ZWO G 1.25": 48x60" (48')
ZWO L 1.25": 87x60" (1h 27')
ZWO R 1.25": 51x60" (51')

Integration: 3h 54'

Avg. Moon age: 7.29 days

Avg. Moon phase: 49.04%


Astrometry.net job: 4353971

RA center: 12h 36' 21"

DEC center: +25° 58' 40"

Pixel scale: 1.161 arcsec/pixel

Orientation: -87.633 degrees

Field radius: 0.972 degrees


Resolution: 4928x3480

Data source: Backyard

Description

This is probably the smallest object I want to image with my tint 71mm aperture telescope!

1. WeightedBatchProcessing (Calibrate only),

2. Crop one image as master

3. Image Registration all images to master

4. Subframe Selector for each filter

5. Local Normalization

6. Image Integration

7. Drizzle Integration

8. Dynamic Background Extraction on each filter

9. EZ Denoise

10. Statistics to see that B has highest median

11. LinearFit R & G to B

12. ChannelCombination RGB

13. RGB: Photometric Color Calibration

14. RGB: ArcsinhStretch

15. RGB: HistogramTransformation

16. L: ArcsinhStretch

17. L: CurvesTransformation

18. L: LocalHistogramEqualization

19. LRGB Combination

20. LRGB: Curves Transformation

21. LRGB: Topaz Denoise AI

Comments

Sky plot

Sky plot

Histogram

Needle Galaxy, 



    
        

            Aaron Freimark