RBA & AF Astrophotography

The Moon, M45 and the fog

Posted: August 25th, 2008



Larger size: 2690x1627

DATE
August 25th, 2008, 2:30pm to 3:00am PST

PHOTO
Exposure: 3 x 60 seconds + 1 x 1/160 seconds

EQUIPMENT
Imaging Scope: N/A
Camera:Canon 40D IR/UV filter
Guide camera: StarShootAutoGuider
Guide scope: Orion Short 80mm
Mount: Takahashi EM-400

SITE & CONDITIONS
Site: Montebello, CA
Seeing: Good
Transparency: Bad

SOFTWARE
Processing: PixInsight + Photoshop

COMMENTS
The idea was to take a photo of M45 and the Moon, as these last two nights they were rather close. So on Monday night, around 2:30am, while here in Sunnyvale the sky was overcast with low clouds, I decided to drive up to a place near Skyline and Montebello, at around 2,500~2,600 feet, hoping the fog wasn't that high.

As I was driving up, at around 1,350 feet I started to drive in fog. Ok... And I was a very happy fellow when the fog dissapeared at around 1700 feet. So I kept driving up until I reached my destination, and there they were (the moon and M45) but the blanket of fog over the valley was so outstanding (much darker than what you see in the photo below) that I decided to take several shots and make up a small mosaic that'd include the fog and my original target (m45 and the moon). I had to photograph my targets using a much larger FOV than what I was originally planning, but in the end I didn't regret.

Also, since the "astro" part of the photo is nothing out of this world and the mosaic was leaving the upper-right corner of the image empty, I decided to spice up the image and compose an "educational" photo with a closeup of M45 reusing the image I took from the Pleiades a couple of weeks ago, covering the black spot the mosaic had left :-)



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