M33 SPIRAL GALAXY

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M33
SPIRAL GALAXY IN TRIANGULUM

M33

The Pinwheel is a member of the Local Group of galaxies and is the second closest spiral galalxy after M31 in Andromeda.
It lies at a distance of about 2.4 million light years and is about 50,000 light years across or about half the size of the Milky Way.
The entire spiral rotates in a period of about 200 million years.

This image was a stack of 3 x 20 min exposures taken with the 4.25" telescope.

M33

This higher resolution image was taken through the 10" telescope.
It was a stack of 6 x 10 min exposures taken with the MX716 camera for the luminance image and binned 10 minute for the R and G frames. The B was synthesized from the R and G.

NGC 604
Giant Emmission Nebula

In the outer reaches of one of the spiral arms of M33 is a giant emission nebula, similiar to the Great Nebula in Orion, although vastly larger. It is just a smudge in most images of the galaxy but if one takes the trouble with a larger instrument, it becomes an interesting deep sky object in its own right.
The context image is a smaller version of last week's color image of the galaxy which can be reviewed by going to Recent Photos in the masthead above.

For more information and images on: NGC 604

NGC 595
Giant Emmission Nebula

We end our tour of the Pinwheel Galaxy in Triangulum with a high resolution color image of NGC 595 taken through the 10" telescope.
This is another nebula similar to but smaller than NGC604, on the other side of the galaxy.

For the most recent Astrophotos of the Week... RECENT PHOTOS

**All film photos taken with the..**.JSP ASTROCAMERA

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