File:Teegarden's star proper motion.gif

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Original file (2,400 × 1,600 pixels, file size: 2.66 MB, MIME type: image/gif, looped, 4 frames, 4.0 s)

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Summary

DescriptionTeegarden's star proper motion.gif	English: Teegarden's star showing proper motion, photographed at intervals of about two years. Español: Movimiento propio de la Estrella de Teegarden, fotografiada a intervalos de aproximadamente dos años.
Date	5 February 2017
Source	Own work
Author	IndividusObservantis

Location: Bakersfield, CA, US.
Each frame of the GIF file is processed from a stack of several pictures using software developed by the author.
All individual pictures in each stack had an exposure of 15 seconds at ISO 1600.
Equipment: Canon EOS Rebel XS, (Rebel T7i used on third frame) directly coupled to the back of a Celestron CPC 1100 with a 0.63 corrector/reducer, and Alt-Azimuth mount with no wedge.
Adobe Photoshop was used to produce the GIF file without modifying any images.

Licensing

I, the copyright holder of this work, hereby publish it under the following license:

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File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Dimensions	User	Comment
current	22:41, 7 December 2020	2,400 × 1,600 (2.66 MB)	IndividusObservantis	Added frame corresponding to Teegarden's star position at the end of 2020.
	01:48, 25 December 2018	2,400 × 1,600 (2.31 MB)	IndividusObservantis	Last version had an error in the third frame in the stacking of one out of 75 frames. This produced a couple of faint light dots resembling stars in places where there are no stars. This version corrects such error.
	20:35, 23 December 2018	2,400 × 1,600 (2.35 MB)	IndividusObservantis	Added scale legend, initially removed in 2018 version inadvertently.
	23:03, 22 December 2018	2,400 × 1,600 (2.34 MB)	IndividusObservantis	Added frame corresponding to the end of 2018.
	03:19, 6 February 2017	2,400 × 1,600 (1.02 MB)	IndividusObservantis	User created page with UploadWizard