Hemisphere:  Northern  ·  Contains:  NGC 4395  ·  NGC4395
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NGC 4395 in Canes Venatici, 


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NGC 4395 in Canes Venatici

Technical card

Imaging telescopes or lenses: Skywatcher Explorer 200PDS

Imaging cameras: QHYCCD QHY9M

Mounts: Skywatcher NEQ6 PRO Synscan

Guiding telescopes or lenses: Skywatcher 9x50 finderscope

Guiding cameras: QHYCCD QHY5L-IIc

Focal reducers: Baader MPCC Mk III

Software: Photoshop  ·  Pixinsight

Filters: Baader Red 2"  ·  Baader L 2''  ·  Baader Green 2"  ·  Baader Blue 2"

Accessory: QHYCCD QHY 2" Filter wheel  ·  Seletek Armadillo

Dates:March 30, 2020April 1, 2020

Baader RGB 2": 141x180" -40C bin 1x1
Baader RGB 2": 73x180" -40C

Integration: 10.7 hours

Flats: ~25

Bias: ~100

Avg. Moon age: 6.50 days

Avg. Moon phase: 40.84%

Astrometry.net job: 3375480

RA center: 12h 26' 35"

DEC center: +33° 29' 25"

Pixel scale: 1.105 arcsec/pixel

Orientation: 164.328 degrees

Field radius: 0.537 degrees

Resolution: 2823x2064

Locations: Puolivälinkangas - Oulu, Oulu, Finland

Data source: Backyard


This took several nights, fairly dim one but surprisingly large in visual diameter.

NGC 4395 is a low surface brightness spiral galaxy with a halo that is about 8′ in diameter. It has several wide areas of greater brightness running northwest to southeast. The one furthest southeast is the brightest. Three of the patches have their own NGC numbers: 4401, 4400, and 4399 running east to west.[3] The nucleus of NGC 4395 is active and the galaxy is classified as a Seyfert. It is notable for containing one of the smallest supermassive black hole with an accurately-determined mass.[4] The central black hole has a mass of "only" 300,000 Sun masses,[5] which would make it a so-called "intermediate-mass black hole".



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Sky plot

Sky plot


NGC 4395 in Canes Venatici,