Posts in Category: Astro Photography

Sunset Close Up

The Dark Side of the Moon

“The church says the earth is flat, but I know that it is round, for I have seen the shadow on the moon, and I have more faith in a shadow than in a church.” -Ferdinand Magellan

Used the Nikon 1 V1 camera and my Orion 600 f/6 telescope for this shot. This is a single frame, the sharpest out of a hundred. No image stacking.
Converted it to black&white and added som yellow tint, to reduce the chromatic aberration. 1600mm f/16 1/250 ISO100

The Sun in White Light

This is the Sun. The surface i clearly visible with Sunspots and sharp detail. The atmosphere violently blur it out, multiple integrations are therefore required. This is a composite of the sharpest 750 images out of 1450 in total. They have been aligned, stacked and sharpened in post to reveal more detail. View full-screen.


The sun is bright, even more so through a telescope. I use a filter that permit only 0.01% of the light to pass. I still use 1/1000s -1/8000s exposures. Equipment: 600 f/6 refractor, D700. Beneath, 750 frames vs one single frame. View the current state of the Sun.

Flocking

Installed flocking in my 1000mm f/5 Newtonian reflector. It is a microfiber material with small vertical 0.5mm fibers. Installing this on the walls inside the optical tube assembly, results in increased absorption of scattered light, further improving contrast. To compare, I made these before/after-images, they have the same corrections and therefore display the exact difference in light absorption, black paint vs. flocking.

Andromeda

Object:
Andromeda Galaxy (NGC 224/ Messier 31) + NGC 221/ Messier 32
Distance to object, approximately 2.6 million light-years.

Equipment:
1000/200 f/5 newtonian telescope
HEQ5-Pro German Equatorial SynScan Mount
Nikon D90 (5.4µ size pixels), unmodified
“Coma Corrector” & “Field Flattener”

Info:
Original capture date: 2011.10.02
Magnification: 23x (~1150mm)
Pixel scale:1.10 arcsec/pixel (Original resolution)
Pixel scale:4.32 arcsec/pixel (Published resolution)
Field size :78.58 x 52.19 arcminutes (1.3161° x 0.8719°)
Exposure, Light Frames: 28x60s iso800 (28 minutes)
Exposure, Dark Frames: 200x60s iso800 (3 hours, 20 minutes)
Polar-Alignment: Fair
Auto-guiding: None
Temperature: 5C
Elevation: >1000 meters

Software:
PixInsight, Photoshop CS5, Lightroom 3

 

The Whirlpool Galaxy

Object:
Whirlpool Galaxy (NGC 5194, NGC 5195/ Messier 51) + NGC 5169 + NGC 5173 + NGC 5198 + IC 4263. Distance to object, approximately 23 million light-years.

Equipment:
1000/200 f/5 newtonian telescope
HEQ5-Pro German Equatorial SynScan Mount
Nikon D90 (5.4µ size pixels), unmodified

Info:
Magnification: 23x (~1160mm)
Pixel scale:1.10 arcsec/pixel (Original resolution)
Pixel scale:4.32 arcsec/pixel (Published resolution)
Field size :78.58 x 52.19 arcminutes (1.3096° x 0.8698°)
Exposure, Light Frames: 60x30s at iso6400 (30minutes)
Exposure, Dark Frames: 15min at iso6400
Exposure, Flat Frames: 40
Exposure, offset Frames: 100
Polar-Alignment: Yes/ fair
Auto-guiding: nope
Temperature: -15C
Elevation: >1000 meters

Software:
RegiStax5, Iris, Lightroom, Photoshop

The Orion Nebula

The following are two edits of the same set of images. They both have heavy color corrections, and show a serious lack of signal in the dark regions.

Object:
Orion Nebula (NGC 1976/ Messier 42) + NGC 1980, 1982, and the stars ιOri, θ1Ori, θ2Ori… Distance to object, approximately 1344 light-years.

Equipment:
SkyWatcher Black Diamond 1000/200 f/5 newtonian telescope
SkyWatcher HEQ5-Pro German Equatorial SynScan GoTo Mount
Nikon D90 (5.4µ size pixels), unmodified

Info:
Original capture date: 2011.01.02, 2011.01.29, 2011.01.30
Magnification: 23x (~1160mm)
Pixel scale:1.10 arcsec/pixel (Original resolution)
Pixel scale:4.01 arcsec/pixel (Published resolution)
Field size :72.23 x 48.15 arcminutes (1.2038° x 0.8025°)
Exposure, Light Frames: 150x10s at iso800 (25 minutes)
Exposure, Dark Frames: 0
Exposure, Flat Frames: 40
Exposure, offset Frames: 100 at iso800
Polar-Alignment: None/ Extremely Poor
Auto-guiding: None
Temperature: -5C
Elevation: <100 meters

Software:
RegiStax5, DeepSkyStacker, Iris, Lightroom, Photoshop