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Contains:  NGC 5195, Whirlpool galaxy, M 51, NGC 5194
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M51 The Whirlpool Galaxy (Up Close), 


M51 The Whirlpool Galaxy (Up Close)

M51 The Whirlpool Galaxy (Up Close)

Technical card

Imaging telescope or lens:Celestron C11 Celestron

Imaging camera:60Da Canon

Mount:CGEM Celestron

Guiding camera:Orion Star Shooter

Focal reducer:6.3 reducer Celestron

Software:photoshopDeep Sky StackerNoel's Tools5.00 Images Plus

Resolution: 725x533

Dates:May 4, 2013

10x240" ISO1600
8x300" ISO1600
15x130" ISO3200

Integration: 1.9 hours

Avg. Moon age: 24.23 days

Avg. Moon phase: 28.52% job: 524473

RA center: 202.485 degrees

DEC center: 47.212 degrees

Orientation: 113.939 degrees

Field radius: 0.155 degrees

Locations: Leesburg home, Leesburg , Florida, United States


The Whirlpool Galaxy (also known as (Messier 51a, M51a, or NGC5194) is an interacting grand-design spiral galaxy that is estimated to be 23 ± 4 million light-years from the Milky Way Galaxy in the constellation Canes Venatici. It is one of the most famous galaxies in the sky. The galaxy and its companion (NGC5195) are easily observed by amateur astronomers, and the two galaxies may even be seen with binoculars. This was one of Messier's original discoveries. He found it in 1773 while observing a comet. M51 is a beautiful example of a face-on spiral galaxy. The obvious spiral shape of this object is what gave it the name, Whirlpool. It was the first spiral galaxy to be discovered. Careful observation reveals that this object is actually two galaxies. The second, known as NGC5195, is interacting with M51. The outer regions of the two galaxies actually touch each other. M51 is located about 37 million light-years from Earth. Under dark skies, it is an easy target for small telescopes. It is one of the brightest and easiest galaxies to locate for the experienced amateur.
Observation Notes : Pretty bright, pretty large, Irregularly round and much brighter in the middle at 135X. On the best of nights the connecting bridge to M51 is obvious and there are several dark markings across the face of this strange shaped object. Discovered on Oct 13th 1773 by Charles Messier.



License: None (All rights reserved)


  • M51 The Whirlpool Galaxy (Up Close), 


  • M51 The Whirlpool Galaxy (Up Close), 


  • Final
    M51 The Whirlpool Galaxy (Up Close), 



Sky plot

Sky plot


M51 The Whirlpool Galaxy (Up Close),