Howard's Astronomical Adventures
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M45 : The Pleiades in Taurus

Photograph of M45

The Pleiades or "seven sisters" is the finest open cluster in the night sky. Almost lost two sisters on the left. This picture is cropped from the wider version (720x1075, 400k) which is my favorite.

Click the image above for a larger version (1280x1280, 650k).

Information about this object can be found on the SEDS website and on Wikipedia.

Photograph Information
LocationClearfield Observatory
TelescopeAP130 @ f4.5 w/AP telecompressor
CameraCanon 350D, Hutech modified type I
ExposureStack of 28, 5 minute exposures at ISO 800
Notes40°F, 82%rh, good transparancy

Calibrated with bias, dark and flat frames.
Initial RAW conversion, registration and stacking in IRIS.
Noise reduction in PixInsight LE 1.02 Additional adjustments in Photoshop CS2

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