Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  IC 4278  ·  M 51  ·  NGC 5194  ·  NGC 5195  ·  Whirlpool galaxy
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M51, apaquette
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M51

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M51, apaquette
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M51

Equipment

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Acquisition details

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Description

Messier 51, The Whirlpool Galaxy

Taken 20100503 and 20100504

Telescope:

  Celestron Edge HD14"

Camera:

  Apogee U16M

CFW:

  Apogee 7S

Mount:

  Celestron CGE Pro

Guiding:

  Astrodon Monster MOAG

  Lumenera Skynx 2.0m

  MetaGuide

Filters:

  Baader LRGB (50mm square)

Software:

  MaximDL

  Custom

  ImagesPlus

  PhotoShop

  SGBNR

Exposures:

  8x600s L

  8x300s R,G,B (each)

On the night of 20100504 the seeing was exceptional -- around 1.5". A single calibrated luminance frame in FITS format (zipped) can be accessed at:

www.paquettefamily.ca/astro/20100503_m51_example_sub.zip

There was a reflection in the raw frames near the center of the image (seen just to the left of the galaxy in the FITS file) that had to be edit out of the final image.

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M51, apaquette