Hemisphere:  Northern  ·  Constellation: Virgo (Vir)  ·  Contains:  NGC 4493  ·  NGC 4517  ·  NGC4493  ·  NGC4517
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NGC 4517 in Virgo, 


            Rodney Watters

NGC 4517 in Virgo

Technical card

Imaging telescopes or lenses: Tak TSA120

Imaging cameras: QSI 683 ws-8

Mounts: EQ8

Guiding telescopes or lenses: Tak TSA120

Guiding cameras: Starlight Xpress Lodestar x2

Focal reducers: Takahashi TOA Reducer .75x

Software: Pixinsight 1.8  ·  Sequence Generator Pro

Filters: Astronomik Red  ·  Astronomik Blue  ·  Astronomik Green

Dates:April 18, 2020April 24, 2020April 28, 2020

Astronomik Blue: 31x600" -20C bin 1x1
Astronomik Green: 33x600" -20C bin 1x1
Astronomik Red: 53x600" -20C bin 1x1

Integration: 19.5 hours

Darks: ~50

Flats: ~50

Bias: ~100

Avg. Moon age: 10.57 days

Avg. Moon phase: 15.29%

Astrometry.net job: 3718123

RA center: 12h 32' 37"

DEC center: +0° 8' 2"

Pixel scale: 1.317 arcsec/pixel

Orientation: 92.701 degrees

Field radius: 0.885 degrees

Resolution: 3900x2865

Data source: Backyard


NGC 4517 is a spiral galaxy located in the constellation of Virgo. This field is rich in galaxies and if you take the time to peer around you will find many lurking about in the background.

The main galaxy in the image displays a quite noticeable dust lane down the centre and blue areas which are most likely groupings of young hot stars. NGC 4517 is about 40 million light years from Earth.

The galaxy across to the right between 3 and 4 o'clock is NGC 4517A. NGC 4517 in the centre of the image is an edge on spiral and NGC 4517A across to the right is a face on spiral galaxy. The two of them make for a fine display.


Sky plot

Sky plot


NGC 4517 in Virgo, 


            Rodney Watters

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