This is an image that seems to show several spokes of stars. I've
annotated the image with colored lines aligned with the ends of two of
these spokes.
Apparently this is due to a combination of observational effects, probably
because of obstructing clouds in other directions and more sensitive
measurements in some directions.
To get to this viewpoint:
- Replace Celestia's file data/stars.db with
StarsDB v2.0A
- Start Celestia
- Configure Viewing Options
- Stars on
- Everything else off
- increase star intensity to maximum
- go off to a location where you can see spokes and maybe an arc
- Select the menu "Navigation", item "Select Object...",
- Specify "Object Name" HD 109214
- Select "OK"
- Type a "C"
- Type a "G"
- Return to a Sun-centered control system so rotations are with
respect to the Sun, not to HD 109214
- Type an "H"
- Type a "C"
- Type a "G"
- Return to the vicinity of HD 109214
- Select menu Navigation, item Goto Object
- Type in Object: Sol
- Type in Distance 1000000000 (1 followed by 9 zeros)
- Select units of "au"
- Seleet "Go To"
- Rotate stars around and observe spokes and maybe an arc at their
ends.
- On a PC running Windows: select the Right mouse button
- move the mouse back and forth, left to right and toward and away from you,
rotating the stars around with respect to the Sun. Various 3D
structures, like the spokes and maybe an arc just past their ends,
should become visible.
- The star "b Vel" is just past the end of what looks like the longest spoke
- Here is a list of a few stars that look to me like they could
be members of an arc.
Some of them are about 3100-3200 LY from Sol. Others aren't:
I may have selected stars that were displaced slightly
from stars that I intended to select.
- HD 8259 -- 3732LY
- HD 87436 -- 3229LY
- HD 103036 -- 4530LY
- Aludra -- 3137LY
- HD 78190 -- 3106LY