Many terms should be in boldface type to indicate a definition in the
book's glossary including: refractory and volatile in box 2.5; 'gravitational
focusing' in box 2.6; siderophile on page 60.
Page 111: The value 1.054 is way too exact. It certainly varies by more than 1
part in 1000 for different types of ash.
Page 130, tan box: "several kilometers per second" should be "more
than 10 km/s." The lowest likely impact speed for terrestrial planets
is ~10 km/s for Mars.
These next chapters are better than in the 2004 edition or, at least,
improve on a second reading. One problem is that many complex ideas
are introduced and then not fully applied to the planets. Also,
organization is by objects, not by processes as in the earlier
chapters. It would be better, for instance, to introduce the Hadley
cells and the Coriolis effect and then discuss all applications on the
terrestrial and giant planets. Same for cloud formation,
Page 147: The books states that the details of how information
about atmosphere is obtain is less important than the information
itself. The book then spends 9 full pages discussing these
details. While the information presented is good, much of it could be
trimmed or relegated to an appendix.
Page 166: Figure 5.4 says temperatures in the exosphere while the
text says average surface temperature. Exosphere temperatures are
correct as you can see by noting that the temperatures for Earth and
Venus in the plot are similar. Surface temperatures are used only for
airless boddies like the Moon and Mercury.
Page 190: "Mesospheres of the planets" - Misleading. So far, only Earth is
known to have a mesopshere.
Page 191: While Mars and Venus do have far lower exospheric
temperatures than Earth, this cannot be readily seen in Fig. 5.17
which cuts off at too low an altitiude.
Page 210: Core masses given for Jupiter in the text, while more in line with current thinking, differ from Fig. 6.2.
Still need to see which of the following comments have been addressed since 2011
Page 170: In table 5.2, remember that CO2 varies substantially seasonally. It is likely that the H2O fraction on Mars are also highly variable as well!
Perhaps CO and O2 too.
Page 172: In box 5.3, electrolysis needs to be defined. It means
separating the ions in a bonded compound by passing an electric
current through it.
Page 174: In box 5.4, make an explicit link to mantle convection.
Page 175: Fig 5.18 needs to state why this is important. In a) the gas
parcel will continue to rise leading to convection. In b) the parcel
will cease to rise and convection will not occur.
Page 178, middle: Give effective temperatures for the Moon and Mercury and discuss.
Page 185, Figure 5.17 does not show temperatures in the Thermosphere as
claimed at the end of section 5.4.
Page 189, Figure 5.33: this caption just duplicates nearby text. Explain
how the sunlight is divided over a greater area near the poles.
Page 191, middle: Discuss why low wind speeds (the doldrums) are predicted
near the equator. Basically, moving slightly north or south from the
equator changes wind velocities only very slightly (repeat calculation
on page 190 for 0 to 5 degrees).
Page 192 bottom: Explain in more detail what winds do in response to a
Page 194 top: Define offshore and onshore breezes.
Offshore means from blowing from land to sea.
Page 195 top: In this circumstance, charged particles do not
follow the spiral field lines. The charged particles move out
radially, dragging the field lines with them. All physical motions are
primarily radial, just as the water that leaves a spinning
lawn sprinkler travels out radially.
Page 198: Question 5.14. The atmosphere would stop charged particles from
reaching Earth's surface. The magnetic field protects low orbiting
Page 208: the magnetic axis is not fixed with respect to the stars.
Page 211: Box 6.2 doesn't answer the question of "how hydrogen can occur
in the metallic form" raised at the top of the page. Explain why high
pressures are necessary to form metallic hydrogen.
Page 219: Box 6.3: chemical equilibrium is poorly explained here.
Page 224 bottom: the atmosphere in the belts is sinking and in the zones
it is rising, exactly opposite to what is stated here.
Page 227: In Fig. 6.17, rotation on cylinders is not motivated at
all. Why should we expect this? The Sun, whose rotation is better
understood, doesn't behave this way.
Page 240: This section on magnetospheres is very thin. It should be
combined with the Jupiter and Saturn section and discussed all at
once. Even better, combine all of the magnetospheric material from
Chapters 5 and 6 into one place.
Page 240: Figure 39a for Uranus has the planet's magnetic field
axis drawn incorrectly. For any viewing angle, the angle between the
spin and magnetic axes should not exceed 60 degrees.
Page 250: equally important for tides on eccentrically-orbiting
bodies, is that the size of the tide varies as the object moves closer
and further from the central body.
Page 259 top: There have now been two landings on asteroids: these are
closer approaches than Deep Space 1's 15 km pass.
Page 261: Update Dawn's visits to Vesta and Ceres to succesfully
Page 265, middle: As of 2016, Pluto is is the largest known Kuiper Belt
Object, but the most massive is Eris discovered in 2003.
Page 267, bottom: Pluto has Carbon Monoxide ices, not Carbon
Page 267, bottom and Fig. 7.29: Update the status of New Horizons
to successfully encountered Pluto.
Page 272, end of section 7.5: discuss the Deep Impact project and its
findings for cometary density.
This chapter has sections 8.1, 8.2.1 through 8.2.11, and 8.3. It
would make more sense to have additional subsections rather than so
many subsubsections. Subsubsection 8.2.4 would more naturally be section 8.3,
Page 281, middle: The age of the Universe is now known to be
very close to 13.7 billion years old.
Page 284: There is no reason to expect that small stars should be
deficient in plantary systems.
Page 307, bottom: It was recognized since the mid 1980s and well
recognized before the discovery of the Kuiper belt in 1995 that the
giant planets must have migrated significantly.
Page 311: There are strong arguments against Phobos and Deimos being
captured asteroids. They both orbit very close to the equatorial plane
like satellites that form with their planets.
Page 330: "of which more below" -> "of which we will say more below".
Page 343: Update Dawn's visit to Vesta as succesful and replace Fig. 9.21.