The brightest in the constellation of a volley. Red giant class of stars. The distance between our Sun and Arctur is 36.72 light years.
Photographs taken on: March 2019.
Composition: DSS (5 best frames and Dark + Bias frames)
Processing: GIMP v2.10.6 + add-ons (Linux)
Lights: 5 x 57[s], ISO-1600;
Arctur – Fourth in terms of brightness, the star of the night sky
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iOptron CEM 25P RA axle bearings replacement. Instructions for how to replace faulty RA-axis bearings (6907) in the iOptron CEM 25P mount yourself. Eliminate friction and improve tracking accuracy. Do it yourself!
SynScan controller firmware update: Starting from version 3.0, users can independently update the firmware of SynScan controllers for NEQ mounts. Simply download the latest software version from the Sky-Watcher website and perform the update following the instructions provided here.
SynScan GOTO controller – trouble with buttons: At some point while using the controller, I noticed that the ESC button wasn’t always working. I lived with it, but after a while, the left Ra button also started acting up and wouldn’t always connect. A red flag went up in my head – something needed to be done. It’s worth noting that the problems appeared right after the warranty period ended… coincidence?
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EQDIRect for NEQ and EQ mounts: The GOTO controller is extremely convenient and practical to use, when you want to look at interesting night sky objects, with your own eye through the eyepiece mounted in the telescope’s focuser. The ability to quickly select an object using the GOTO controller, is invaluable.
Rosette Nebula NGC 2237.
In this article, I have gathered in one place the most interesting information about the entire nebula and its selected regions. The information contained in this content is my own compilation based on collected data.
New feature on the website: Image zoom with a magnifying glass!
Now, in a very convenient way, you can zoom any area of the photo and look at the details.