Porcupyn's Blog

July 2, 2008

An Astronomical Question …

Filed under: Science — Porcupyn @ 5:06 pm

An astronomy question from someone who – once upon a time – wanted to be an astronomer (long story snipped):

Here is a quote from Yahoo –>

Voyager 2 hit the southern edge of the solar system nearly 1 billion miles closer to the sun than Voyager 1 did to the north. Voyager 2 hit the edge at 7.8 billion miles from the sun.

Now, the Earth spins around its axis which is tilted about 23.5 degrees off the vertical. The best way I can describe its orbit is either east or west (I don’t know which), but definitely not north or south. Similarly, to the best of my understanding, the orbits of all planets are – more or less – on the same plane.

So, how can the Voyagers have gone north or south, unless we use Uranus’s poles for reference? For those that don’t know, Uranus rotates about its horizontal position.



  1. As a famous German once said, it all depends on your frame of reference. Reading through the article, they are assuming that the entire solar system plane is North-South, as seen from some unnamed point (center of the Milky Way?)

    Comment by Bhel Puri & Seekh Kabab — July 2, 2008 @ 9:40 pm | Reply

  2. BPSK:

    I scratched my head to no avail … who was the German? Wait a minute, Einstein is/was German, isn’t he? I am losing it now!!! 😦

    I kind of presumed so, but I really felt they should have made it clear.

    BTW, Sundar broke your hat-trick a few minutes ago (well, actually you commented four times without interruption). 🙂

    Comment by porcupyn — July 4, 2008 @ 10:18 pm | Reply

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