gjdonatiello
Sirius star + Sirius B orbital motion
Sirius star + Sirius B orbital motion
Credit: Giuseppe Donatiello
This composition represents a partial work based on data obtained between 2012 and 1015 in which the separation and displacement of Sirius B was perceived. From what I understand, it appears to be the first image ever produced to show this. Also reported in EOD n.16 iusse. [www.infoastro.com/dobles/oed16.pdf]
Each single source image, all taken with the ED 127mm refractor used at f/45 + ROI, is the result of the manual stack of 15-20 "super-frames" (ie of excellent quality) extracted for inspection and visual evaluation from films composed of 250 (therefore about 7% of the total). The individual subframes were manually aligned on the middle centroid (the large white disk that is seen is not Sirius, but his confusing figure!), And rotated until Sirius B matches the theoretical curve of the orbit, with good agreement. The image is therefore not a stack but a multilevel composition.
Sirius star + Sirius B orbital motion
Sirius star + Sirius B orbital motion
Credit: Giuseppe Donatiello
This composition represents a partial work based on data obtained between 2012 and 1015 in which the separation and displacement of Sirius B was perceived. From what I understand, it appears to be the first image ever produced to show this. Also reported in EOD n.16 iusse. [www.infoastro.com/dobles/oed16.pdf]
Each single source image, all taken with the ED 127mm refractor used at f/45 + ROI, is the result of the manual stack of 15-20 "super-frames" (ie of excellent quality) extracted for inspection and visual evaluation from films composed of 250 (therefore about 7% of the total). The individual subframes were manually aligned on the middle centroid (the large white disk that is seen is not Sirius, but his confusing figure!), And rotated until Sirius B matches the theoretical curve of the orbit, with good agreement. The image is therefore not a stack but a multilevel composition.