Strings of filaments on the southwestern surface of the sun


Ha Solar Image

Object Data

Object type: Sun
Notes: Strings of filaments on the southwestern surface .  As a prominence moves across the face of the sun, it appears dark (light in this inverted image) against the hotter surface.  This creates a shadowy serpent-like formation referred to as a filament.

Exposure Data

Date: 7/29/21
Location: Backyard Observatory, Carlsbad, CA
Telescope: Lunt LS100T Ha Double Stack solar scope
Camera: FLIR Grasshopper 23S6M videocamera
Mount: Losmandy G-11
Exposure time: 15% of 2000 frames
Exposure time total:  
Notes: Frame rate of 120/s