|(click on the image to get a full resolution photo i a new window)|
|Coordinates/Direction :||RA: 03h47m, DEC: +24o07'|
|Object size :||110'|
|Object magnitude :||1.6|
|Time (UT) :||22:30 to 23:14|
|Mount :||Star Adventurer|
|Lens/telescope :||Sigma APO 150mm f2.8 (set to f4.0)|
|camera :||Canon 6D, controlled by intervallometer|
|Exp. time :||19x130 seconds, iso1600 (the exif data say 129 sec but it should only had been 60 sec)|
|Image process tool :||Fitswork|
|Processing :||crop, level, cal in camera dark/bias subtracted|
|Site :||Sweden, Stockholm|
M45 is an open clusters, small islands of stars. This one also have a blue nebulosity.
The reason that I took this photo was to do a test of my new light portable mount, a Star Adventurer. One difficulty is to aim the RA axis for the polarstar. I didn't expected much from this photo. 150mm is a long focal length in this case but it worked pretty well. Take a look of the full resolution photo and look at the stars, they are almost round, not elongated as I espected.
|More to know :||
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