I thought that I would post some facts about our nearest star.
Mean Distance from Earth - 1.496 X 10^8 km / 92,946,000 mi
At the speed of light - 8 min 19s
Visual Brightness - -26.74 (Compare to Sirius @ -1.46)
Mean Diameter - 1.392684 X 10^6 km / 865,413 mi
Equatorial Circumference - 4.379 X 10^6 km / 109 X Earth
Volume - 1.412 X 10^18 km^3 / 1,300,000 X Earth
Mass - 1.9891 X 10^30 kg / 333,000 X Earth
Temperature Photosphere - 5,778 K / 5,504 °C / 9,941 °F
Sidereal Rotation @ Equator - 25.05 Days
@ Poles - 34.4 Days
Composition - Hydrogen 73.46%
Helium 24.85%
Oxygen 0.77%
Carbon 0.29%
Neon 0.12%
Nitrogen 0.09%
Silicon 0.07%
Magnesium 0.05%
Sulfur 0.04%
This Blog is about solar viewing and imaging. DISCLAIMER : NOTE! Viewing the sun can be extremely dangerous! The information provided here is meant only as a description of what one or two people have done. The reader accepts all responsibility and liability associated with the use of any information provided here, as it is possible that important precautionary information may be left out. Neither Bill nor Mike is responsible for damage resulting from using the information and ideas herein!
Favorite Sites
- Astronomy Forum
- Bill's Solar Albums
- Current Solar Activity
- Glossary of terms for Solar Data
- Great Solar data Site Current/Past
- Mike's Solar Albums
- Prominence Types
- SOHO Images Plus
- Solar Chat - All Things Solar & Solar Scope Modifications
- Solar Flare Activity
- Solar Monitor
- Solar Observing Guide
- SolarHam
- Space Weather
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