Great Weekend of Astrophotography
Memorial Day weekend was very productive for me. A couple weeks ago I purchased my first DSLR camera, a Nikon D3100 and I’ve been itching to start photographing the night sky. My first big target was the planetary alignment of Venus, Jupiter, and Mercury over the weekend which did not disappoint. I was able to shoot the planets on both Saturday and Sunday nights under perfectly clear skies. This was a relatively easy target for my first foray into the world of astrophotography.
On Saturday night I took my camera and tripod up to my dark sky site in Fawn Grove, Pennsylvania. I arrived around 8:30 just as the sun was setting. While darkness was gathering I set up the camera and punched in the initial settings and waited for Jupiter to appear. Venus was already brilliant approximately ten degrees above the horizon by 8:45. Jupiter appeared minutes later, followed by Mercury visible to the naked eye around 9:00. I played with the aperture and shutter speed until I captured an image I really liked. I ended up with a focal ratio of f/8 and a 1.6 second exposure at ISO 100. The final result once I played with it in Photoshop was very nice, as far as my inexperienced self is concerned. That’s Venus at the bottom of the triangle, Jupiter at upper left, and tiny Mercury at upper right.
This was just practice for Sunday of course. Sunday’s alignment was the one that captured everyone’s attention. The almost equilateral triangle of planets is something you won’t easily forget if you saw it for yourself. If you missed it you’re in luck because photographers all over the world captured the stunning alignment. I’m relatively happy with how mine came out. The only drawback is that the planets are slightly out of focus. I should have been paying closer attention to that. However, them being out of focus kind of allowed more color to come out, especially in Mercury. I worked with the same camera settings as Saturday night. After some adjustments in Photoshop this was my final result.
After the planetary imaging session I was feeling lucky so I tried my hand at some wide-angle constellation shots. I turned the camera towards Ursa Major and took 200×10″ frames and went to stack them in Deep Sky Stacker only to find that my images were out of focus and DSS couldn’t recognize any stars. Not so lucky I guess. I was determined to get it right so I went back outside around 11:30 and decided to shoot the constellation Lyra and it’s bright star Vega. This time I took 200×1.6″ frames at f/4, ISO 3200 and went in to stack them in DSS. The result was much, much better. About 2 hours later I had a decent image with which to work with. I gave it several editing passes in Photoshop before I produced an image I was happy with. Not only are all five of Lyra’s main stars visible, the double star Epsilon Lyrae showed up which really made me proud. This is my first constellation shot so I guess it’s the small things that bring me joy.
Overall, it was a very productive weekend. I learned a lot about how important it is to really nail the focus before shooting anything. Trial and error is how you improve in this hobby. I’m hoping to get a few more practice shots under my belt before taking the camera up to Cherry Springs State Park in a week and a half to shoot under a real dark sky. As I produce more images I will post them here so I hope you stick around and if you have any suggestions or critiques to help improve my technique I’d gladly appreciate it.
Posted on May 29, 2013, in Astrophotography, Solar System and tagged Astrophotography, Epsilon Lyrae, Jupiter, Lyra, Memorial Day, Mercury, Nikon D3100, planetary trio, triple conjunction, Vega, Venus. Bookmark the permalink. 4 Comments.