Category: Astrophotography - Eric Cheng
Eric Cheng

Category: Astrophotography

The Pelican Nebula

The Pelican Nebula (IC5070, 1,800 light years from Earth) in the constellation Cygnus, in the middle of the Milky Way. Captured over 2 nights of fantastic seeing conditions in August, 2021.

The Heart Nebula

The Heart Nebula (IC 1805 / Sharpless 2-190), 7500 light years away, in the constellation Cassiopeia. Stacked in Astro Pixel Processor and edited in PixInsight. Shot in San Mateo, California, in Bortle 5/6 skies, September 6 and 10, 2021.

Upgrading PixInsight with GPU-accelerated TensorFlow v2.6.0 for StarNet++(RTX 30 Series)

ensorFlow, CUDA, and CuDNN must be matched based on compatibility. I haven't found an updated matrix that goes up to TF v2.7 and couldn't find an easy download link for the v2.7 dll, so I went with v2.6.

Elephant’s Trunk Nebula (IC1396)

I finally had a clear night–the first in over a month–so I set up the telescope and new astro camera in the yard to image the Elephant’s Trunk Nebula (IC1396). I’m using the same telescope as before, but the rig now requires a focal length reducer / field flattener in order to match the increased ...

Comet NEOWISE over San Francisco, July 12, 2020

A random thought on Facebook led to 60+ productive comments from other photographers, resulting in a 3:15am journey to San Francisco to set up for a shot of Comet NEOWISE, which was ostensibly to be positioned just over the Bay Bridge.