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Propeller plane 1 is posted in Cars category.
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Simple, sturdy propeller assembly for whirligigs using PVC piping. Ask me for free article on the process.
DWB111 is another emission nebula in Cygnus. Little is known about this object including its distance from Earth.
FSQ-106EDX F3.6 Exposure: SII 5x20 min., Ha 5x20 min., OIII 5x20 min. Binned 1x1
High Resolution Image Available Here:
www.willowriseobservatory.com/ImageUploads/Propeller1(2012_06_09).jpg
Taken on my Nikkor 50mm prime lens, I liked the water spray pattern, but the rest was a little uninteresting. I tried some processing to give it some more interest.
The propeller informally named "Earhart" is seen in this view from NASA's Cassini spacecraft at much higher resolution than ever before. This view, obtained on March 22, 2017, is the second time Cassini has deliberately targeted an individual propeller for close-up viewing during its ring-grazing orbits, after its images of Santos-Dumont a month earlier. The biggest known propeller, informally named "Bleriot," is slated for the third and final propeller close-up in April 2017.
Propellers are disturbances in the ring caused by a central moonlet. The moonlet itself would be a few pixels wide in this view, but it is difficult to distinguish from (and may be obscured by) the disturbed ring material that surrounds it.
Simple, sturdy propeller assembly for whirligigs using PVC piping. Ask me for free article on the process.
For the propeller bests, once I've carved the mouth out, I shape the teeth. I put each tooth in individually, and then trim them so they look sharper. The teeth in the upper half of the mouth have been trimmed, but not the ones in the lower half.
Lights:
Ha = 53 x 300 seconds
OIII = 96 x 300 seconds
SII = 51 x 300 seconds
Darks = 30
Astronomik 6nm Ha 1.25" Filter
Astronomik 6nm OIII 1.25" Filter
Astronomik 6nm SII 1.25" Filter
ASI 1600MM Pro
Lowest read noise preset
APT
Celestron Onyx EDF + AT2FF
PHD2 guiding; Orion SSAG; KWIQ guider
Data collected 8/17/2020, 8/26/2020, 9/5/2020, 9/7/2020
Simple, sturdy propeller assembly for whirligigs using PVC piping. Ask me for free article on the process.
This propeller was brought up a few years ago in the nets of a fishing boat off the west coast of Cumbria. It was subsequently identified as belonging to a Lancaster bomber which ditched in the area during World War 2 with the loss of the entire crew. Not visible in this photo, behind the propeller a section of the shaft including a gear wheel also remains attached.