Hemisphere:  Northern  ·  Constellation: Coma Berenices (Com)  ·  Contains:  NGC 4712  ·  NGC 4725  ·  NGC 4747  ·  NGC4712  ·  NGC4725  ·  NGC4747
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NGC 4725, 



    
        

            Francesco
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NGC 4725

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)
Getting plate-solving status, please wait...
NGC 4725, 



    
        

            Francesco
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NGC 4725

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Imaging telescopes or lenses: Sky-Watcher Esprit 120ED Super APO Triplet

Imaging cameras: ZWO ASI 071MC PRO

Mounts: Orion Atlas Pro AZ/EQ  ·  SkyWatcher Pillar pier

Guiding telescopes or lenses: Sky-Watcher Evoguide 50 APO Refractor

Guiding cameras: ZWO ASI290mini monochrome

Software: Ascom EQMOD  ·  N.I.N.A. 1.10  ·  PixInsight  ·  Photoshop cc2018  ·  PHD 2

Filters: IDAS D2 lightpollution suppression 2" filter

Accessory: QHYCCD Polemaster  ·  Startech Industrial Hub 7 Ports  ·  AstroZap Dew Heater  ·  Pegasus Astro pocket powerbox  ·  skywatcher field flattener


Dates:April 1, 2021April 2, 2021

Frames: 43x180" (2h 9') (gain: 90.00) -10C bin 1x1

Integration: 2h 9'

Darks: ~18

Flats: ~30

Flat darks: ~30

Avg. Moon age: 19.55 days

Avg. Moon phase: 76.07%

Bortle Dark-Sky Scale: 6.00

Temperature: 1.00


Astrometry.net job: 4382559

RA center: 12h 50' 23"

DEC center: +25° 29' 37"

Pixel scale: 1.149 arcsec/pixel

Orientation: -30.012 degrees

Field radius: 0.947 degrees


Resolution: 4944x3284

Data source: Backyard

Description

Finally more clear nights, three in a raw :-) I decided to collect subs of NGC 4725, The needle Galaxy and Coma Cluster (coming soon).

Clouds rolled in the second and third nights so I had to compromise and collect fewer subs for object, but enough to get something out of it.

It was a bit windy all three nights and the first night the light shed panel blew partially down. I noticed that when the session was ended and the subs were a bit more noisy cause of it. I had to throw away 1/3th of the images cause wind-casts.

Probably these are the last images I submit for the season cause the nights are rapidly getting shorter in Scandinavia.

Clear skies to everybody! :-)

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NGC 4725, 



    
        

            Francesco