Astrophotography and electron cryo-microscopy have much in common: In both cases, the objective is to take an image of a very dim object (dim = low-dose in the case of cryo-EM) with an optical instrument. Furthermore, the object tends to move while images are recorded. Finally, to see more detail of the object and suppress noise, images are averaged in both techniques. Below is a selection of images taken by Niko Grigorieff. Click on an image to see it at higher resolution. Details about the gear used can be found here.
M42 (Orion Nebula)
Type: Emission & reflection nebula
Distance from earth: 1,300 light years
Brightness (magnitude): 4.0
Stars are constantly born in the Orion nebula, the closest star nursery to earth.
IC 4703 (Eagle Nebula)
Type: Emission nebula
Distance from earth: 6,500 light years
Brightness (magnitude): 6.0
The gas in this nebula is excited by the intense light of the M16 star cluster near its center.
M33 (Triangulum Galaxy)
Type: Spiral galaxy
Distance from earth: 2.7 million light years
Brightness (magnitude): 5.7
The Triangulum Galaxy is the third-largest member of the Local Group of galaxies, which also includes our galaxy, the Andromeda Galaxy and about 30 other smaller galaxies.
M27 (Dumbbell Nebula)
Type: Planetary nebula
Distance from earth: 1,360 light years
Brightness (magnitude): 7.5
This nebula is only a few thousand years old.
M51 (Whirlpool Galaxy)
Type: Spiral galaxy
Distance from earth: 23 million light years
Constellation: Canes Venatici
Brightness (magnitude): 8.4
These are two galaxies (M51a and M51b) that interact with each other.
IC5146 (Cocoon Nebula)
Type: Reflection/emission nebula
Distance from earth: 3,300 light years
Brightness (magnitude): 7.2
Dark nebula Barnard 168 (B168) forms the dark arm extending from the nebula.
NGC869 & NGC884
Type: Open cluster
Distance from earth: : 7,600 light years
Brightness (magnitude): 5.3 & 6.1
The two clusters are only a few hundred light years apart.
Distance from earth: ~385,000 km
Mass: 0.0123 earth masses
This image is a montage of a short and long exposure of the waning moon on August 6th.
Telescope: Astro-Tech AT111EDT 111mm f/7 ED
triplet apochromatic refractor
Mount: Atlas EQ-G Mount with GoTo Controller
Field flattener: Astro-Tech 2
Detector: Canon Digital Rebel XSi (unmodified) or QSI 583wsg
Guiding telescope: Astro-Tech AT66ED 66mm f/6 ED
doublet apochromatic refractor
Guide camera: Orion StarShoot AutoGuider
Image processing: MaxIm DL5, Adobe Photoshop CS2