Star Trek Canon Database

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Database started: 1999-07-27
Page generated: 2014-10-01

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TNG Season 7, Ep# 164: "Pegasus"

SCRIPT: The ship nears the Devolin system -- a solar system that never coalesced into discrete planetary bodies. It's a swirling disc of rock and other matter.

RIKER: I recommend we destroy the asteroid. It would take almost all our photon torpedoes, but it would preclude any possibility of the Pegasus falling into Romulan hands.

Naval Weapons: based on the pictures below (and scaling work by Graeme Dice), the asteroid appears to be roughly 5 kilometres wide. The close-up shot has been widely used in order to justify a much larger size of 15 km, but as you can see, the asteroid has a potato-like shape, and it is misleading to use the close-up with the assumption of spherical shape

Image


Image


Since the Devolin asteroid field is proto-planetary matter rather than a pulverized planet (like the Hoth asteroid field) and its asteroids are obviously not well-consolidated (since the asteroid in question was hollow), there is a <10% chance that it was metallic. If we use fragmentation figures for igneous rock (see the Asteroid Destruction Calculator), it would take 125 megatons to pulverize the asteroid. If we use cratering figures for granite, it would take 30 megatons to catastrophically disrupt it.

If it takes almost all of the USS Enterprise's 275 photon torpedoes to do this, then we can conclude that photon torpedo yield is between 110 and 450 kilotons (keep in mind that this is a rather generous estimate since the asteroid was hollow so it was obviously not well-consolidated, thus making it easier to fragment).

Note that just one of Slave-1's eight seismic charges (as seen in AOTC) would have easily destroyed this asteroid, which means that Slave-1 can deal out many times more destruction than the entire photon torpedo payload of the Enterprise-D! If a one-man patrol craft carries more destructive power than the Federation's most powerful warship, one can only imagine the overwhelming firepower advantage that an Imperial Star Destroyer would have.

TNG Season 7, Ep# 164: "Pegasus"

PRESSMAN: Report.

PICARD: The Romulans fired on the entrance to the chasm with their disruptors... they've sealed us in.

Naval Weapons: the Romulans are able to seal in the chasm. The rock is glowing a dull reddish yellow when they look at it, which suggests that it's been heated to several hundred degrees C. It would appear that a sort of artificial "cave-in" was produced, probably by judiciously using their weapons and tractor beams to disintegrate portions of the chasm walls, fill in the gap, and weld the resulting mess in place by melting some of the rock.

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