Some of My Pictures of Hale-Bopp, March - April 1997
- A few facts about Hale-Bopp
- Diameter of nucleus - about 25 miles. This gives (assuming a spherical shape) a volume of approximately 65,500 cubic miles, and a mass (assuming it has a density roughly equal to water)of 260,000 billion tonnes.
- Length of tail - in late March, 50 to 60 million miles.
- Date of last visit - 2213 BC
- Date of next visit - 4300 AD (The period has changed because of perturbation by Jupiter)
- Speed at perhelion - 98,000 mph
- Closest approach to Earth - 122 million miles
- Closest approach to the sun - 85 million miles
|Feb 97, my first attempt to photographthe comet, from the car park at Birdoswald Roman Fort. The yellow glow is caused by the lights of Carlisle illuminating low cloud.|
|Comet Hale-Bopp symmetrically posed with the constellation of Cassiopeia in April.|
|My best views were obtained as the comet moved from Cassiopeia into Perseus in mid-April.|
|Comet Hale-Bopp over our house at 0300.|
Link to my other website featuring Skulls
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