Table 1 (information gathered from NASA public sources)
This means that of the around 500 stars within 10 parsecs, only 9 stars
(not including Sol) have been proven to have planets existing within the
range of their stars where nitrogen is able to freeze. This does not
even include the concept of the greenhouse effect, which could easily
serve to cause many of these planets to become much hotter.
It is understood that planets are more likely to be detected when they
are much closer to their star’s orbit (though they are also easier to
detect in less luminous stars), so this statistic should not be taken as
infallible evidence that planets able to cause N2 fragment ejection are
highly unlikely to exist, but rather that there is simply very little
current evidence to suggest that these planets are present within the
galaxy at the degree to which our solar system has them¹⁶. Therefore,
the assertion that our solar system is typical in its ability to eject
nitrogen icebergs is not fully represented by our current data on
exo-planetary systems.