Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Contains: 
Pluto, four days apart, 





    
        

            erdmanpe

Pluto, four days apart

Technical card

Imaging telescope or lens:Planewave Instruments 24" CDK

Imaging camera:SBIG STX KAF-16803

Software:MaximDL 5

Filter:Baader Luminance

Resolution: 3213x1621

Dates:Oct. 26, 2016

Frames: 3x60"

Integration: 0.1 hours

Avg. Moon age: 25.70 days

Avg. Moon phase: 15.73%

Locations: driveway, Daytona Beach, FL, United States

Description

Two images, taken four days apart, showing the apparent motion of Pluto through the star-field. I hadn't done this in years, and the first time I tried I felt a little bit like Clyde. The fact that we have now sent a spacecraft past that little dot is even more mind-stretching. Because of the low elevation angle, I had to make several attempts to finally have two nights of decent seeing so that the stars didn't look terrible. Here the stellar FWHM is ~2 arcsec, helped by the relatively short exposure times, as well as selecting the best three images from a number of exposures on each night. Pluto is about 14th mag and appears to approach a ~9th mag star in the 10/30/16 frame. The FOV is ~12.5 arcminutes across, showing Pluto's apparent motion as ~1 arcmin/day. North is up, East to the left, processing in Maxim, slight gamma stretch to bring up the background stars a little.

Comments

Author

erdmanpe
erdmanpe
License: None (All rights reserved)
3473
Like

Histogram

Pluto, four days apart, 





    
        

            erdmanpe