Hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  NGC 4395
Getting plate-solving status, please wait...
NGC 4395, 



    
        

            Gene
Powered byPixInsight

NGC 4395

Getting plate-solving status, please wait...
NGC 4395, 



    
        

            Gene
Powered byPixInsight

NGC 4395

Imaging telescopes or lenses: Stellarvue SVX140T

Imaging cameras: QHYCCD QHY268C

Guiding cameras: Starlight Express UltraStar Mono

Focal reducers: Stellarvue SFFX-1 Flattener

Software: Pleiades Astrophoto PinInsight  ·  Software Bisque The Sky X Pro

Filters: Baaader UV-IR

Accessory: QHYCCD OAG-M  ·  Moonlite Nitecrawler WR35


Dates:April 9, 2021April 10, 2021April 11, 2021

Frames:Baaader UV-IR: 78x720" (15h 36') (gain: 2.00) -10C bin 1x1

Integration: 15h 36'

Darks: 10

Flats: 33

Flat darks: 33

Avg. Moon age: 28.05 days

Avg. Moon phase: 3.06%

Bortle Dark-Sky Scale: 1.00

Mean SQM: 21.80

Mean FWHM: 1.60

Temperature: 4.50


Astrometry.net job: 4448612

RA center: 12h 25' 45"

DEC center: +33° 31' 36"

Pixel scale: 0.804 arcsec/pixel

Orientation: 92.350 degrees

Field radius: 0.469 degrees


Resolution: 3364x2523

Data source: Traveller

Description

NGC 4395 is a remarkable low surface brightness spiral galaxy, about 26 million light-years from Earth, in the constellation Canes Venatici. In addition to being a Seyfert 1 Galaxy, NGC 4395 is noted for having the smallest known central black hole. This galaxy was a challenge, due to the low surface brightness.

Fortunately I took this image from a bortle 1 location (Death Valley, CA). I am thankful to have gotten 15.6 hours of data, unfortunately I made the mistake of turning the gain on my QHY268C way down which I think increased the read noise. In processing this image, it was a real challenge to separate the signal from the noise. I am extremely grateful to Ron Brecher (AstroDoc) for his expertise with the PI processing.

Comments

Sky plot

Sky plot

Histogram

NGC 4395, 



    
        

            Gene