perihelion

This is known as a perihelion, and it last happened in 1986.

The comet likely made its last perihelion 4,200 years ago.

The comet's next perihelion will be in the year 2016.

Now its perihelion is scarcely more than it was in the beginning.

It is a key that opens the door to Perihelion.

If it does so, this will be at perihelion, about thirty days from now.

What makes it even more intriguing is that Perihelion happened just a month ago.

It is estimated to come to perihelion in December 2045.

At that time, opposition and perihelion were only a few weeks apart.

It may have had a second outburst about 80 days before perihelion.

A day after perihelion its magnitude decreased to just 4.

The first is always to Perihelion, and the second gets you where you?

His prediction of the perihelion passage was correct to within two days.

The next perihelion passage is calculated to be on 6 June 2050.

It was programmed to take another set of measurements at perihelion.

Now it was Ls 281, just after perihelion, and high summer in the south.

The comet was seen to break into three pieces just before its perihelion passage.

Although the comet was next expected at perihelion on 1997 April, no observations were reported.

Hence he concluded that a return to perihelion might be looked for about the middle of this century, 1848 to 1850.

Those models were used to explain the perihelion advance of Mercury.

These orbital changes can cause deviations in its perihelion of four days.

The shift of the perihelion is forwards, about 1.7 days every century.

Athena has come out from perihelion on a changed orbit.

At perihelion they were moving at better than half the speed of light.

The encounter was most likely near the former perihelion.