Astronomy Archives - Page 6 of 71

August 3, 2024August 3, 2024

8/3/2024 The Eagle Nebula in the Hubble Palette

This is my first attempt at a true SHO or Hubble Palette image. I faked one a couple years ago but this one is real. I used two complementary dual narrowband filters, one Sulphur II and Oxygen III, the other Hydrogen Alpha and Oxygen III with a shot color ASI533MC Pro camera. SII and Ha are both red, with the former being redder. In the SHO palette, Sulphur goes to the red channel, Hydrogen to the green, and Oxygen to the blue although some people mix them up a little bit. Shot at the River Ridge Observatory, Friday night.

July 14, 2024July 14, 2024

7/14/2024 Blue Hour

Here are some blue hour shots of and from the Clinton Library bridge this morning.

Oh, the starbursts!

Some of the lights that illuminate the bridge reflecting on the water

Oh, the symmetry!

And then it was all over and time to go home.

July 7, 2024July 7, 2024

7/6/2024 Rho Ophiuchi, Clouds, and a new Rig

Saturday night promised to be clear, mild, with no dew until morning. Saturday night lied. Clouds appeared after sunset, the waned, then came back later. Dew arrived around 10 PM. I did manage my best ever Rho Ophiuchi area using my new (to me) Samyang 135mm F/2 ED UMC lens with my ASI294MC Pro camera despite thin clouds traveling through each frame.

The Rho Ophiuchi cloud complex is a complex of interstellar clouds with different nebulae, particularly a dark nebula which is centered 1° south of the star ρ Ophiuchi, which it among others extends to, of the constellation Ophiuchus. Wikipedia

This video is about 2 1/2 hours condensed into 43 seconds. At the start, you can see the Big Dipper in the lower left. In the lower middle is the Little Dipper. The clouds are pretty here but annoying. 14mm f/2.8 Rokinon lens and Canon EOS T8i.

I printed this cradle to hold my Samyang lens (and camera) so that it can be attached to my equatorial mount.