STEREO Watches Comet ISON, Nov. 20-25, 2013

This movie from the spacecraft's Heliospheric Imager shows Comet ISON, Mercury, Comet Encke andEarth over a five-day period from Nov. 20 to Nov. 25, 2013. The sun sits right of the field of view of this camera. Credit: NASA/STEREO

[Hibbit]

My question is, what is the smaller object that seems to pass just in front of Comet ISON as it approaches the sun?

[duanemansfield]

My guess would be that the other object moving past would be Comet Encke (the info in the "video description" section would probrobally answer most of the other questions as well).

[papaspollo]

What was that other thing moving slower?

[PsychO]

would the second object moving past the comets trajectory be a deep space satelite?

[johnwatcher]

What is the strange light that appears from no where and seems to change direction!

[pasqualepasquale]

bonjour! qu est ce que c est ce " point un peu rougatre" qui lui aussi se déplace très vite qui descend et  passe très près de la comète?

[jensnandi]

poor ison, i dont think that it stands a chance. looking forward to tomorrow's drama

[IvanBautista]

How was this video taken...and from where was this video

[IvanBautista]

How was this video taken...and from where was this video