Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Contains:  NGC 4565, IC 3543, NGC 4562
Getting plate-solving status, please wait...
NGC 4565 Needle Galaxy in Coma Berenices, 


            Harri Heikkinen
NGC 4565 Needle Galaxy in Coma Berenices

NGC 4565 Needle Galaxy in Coma Berenices

Technical card

Resolution: 1407x1031

Dates:April 1, 2019April 3, 2019

33x120" ISO1600
74x180" ISO1600
11x300" ISO1600

Integration: 5.7 hours

Darks: ~20

Flats: ~40

Flat darks: ~20

Bias: ~20

Avg. Moon age: 26.91 days

Avg. Moon phase: 8.36%

Bortle Dark-Sky Scale: 8.00

Temperature: 4.00 job: 2626192

RA center: 189.081 degrees

DEC center: 25.989 degrees

Pixel scale: 1.973 arcsec/pixel

Orientation: 93.401 degrees

Field radius: 0.478 degrees

Locations: Backyard, Vantaa, Finland

Data source: Backyard


The needle galaxy is one of my favourite targets and happy to finally give it a go myself. Experimenting how faint object can be captured from my heavily light polluted backyard with this rig. Year ago started astrophotography journey with ~100x5" subs of M42 using a simple alt-az mount. Now managed two full nights with nearly 6 hours of integration time using a guided NEQ6 mount. Sky conditions were nearly ideal - new moon, cloudless, calm and warm spring nights, seeing from fair to good.

Guiding was reasonably ok this time, almost all 3 min subs were usable but had to discard half of the 5 min ones. Need to find and eliminate that flex. Hard to get more details in the picture though, need to perfect that collimation and dive deeper in post processing tricks during the long light-polluted summer nights with nothing else to do. Just love this hobby as there's always something more to learn.

Unmodified Canon 1100d @ ISO 1600, Altair GPCAM2 224c guidecamera. Lights: 11x300" + 74x180" + 33x120". Calibration: 40 flats, 20x300" + 20x180" + 20x120" darks, 20 dark flats, 20 bias.



Harri Heikkinen
License: None (All rights reserved)

Sky plot

Sky plot


NGC 4565 Needle Galaxy in Coma Berenices, 


            Harri Heikkinen