SECCHI Uncovers What? Near Mercury

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  • Thread starter Thread starter DoggerDan
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SUMMARY

The discussion centers on the SECCHI observations of an illuminated object near Mercury, with participants speculating on its nature. Key points include Mercury's extreme surface temperatures, reaching up to 800°F, and its lack of a significant atmosphere, which raises questions about the object's origin. One theory suggests it could be the edge of a gas cloud on the sunward side of the planet. The conversation emphasizes skepticism towards alien theories and focuses on scientific explanations.

PREREQUISITES
  • Understanding of Mercury's surface conditions, including temperature and gravity.
  • Familiarity with SECCHI (Sun Earth Connection Coronal and Heliospheric Investigation) observations.
  • Knowledge of planetary atmospheres and off-gassing phenomena.
  • Basic concepts of astrophysics related to celestial observations.
NEXT STEPS
  • Research the SECCHI instrument and its capabilities in solar and planetary observation.
  • Explore the effects of extreme temperatures on planetary surfaces and potential off-gassing.
  • Investigate the characteristics of gas clouds in space and their interactions with celestial bodies.
  • Study Mercury's geological features and how they relate to its lack of atmosphere.
USEFUL FOR

Astronomers, planetary scientists, and anyone interested in the study of Mercury and solar system dynamics.

DoggerDan
Interesting video. Nice stop-action at 2:12 min.

I don't believe in aliens, so what might this actually be?

Mercury's day side is hot enough (upwards of 800 deg F) to create some serious off-gassing. It's surface gravity is significant at 0.38 g, but it has no atmosphere to speak of.

Could this illuminated "object" merely be the front edge of a gas cloud to the sunward side of the planet? If not, what else might it be?
 
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