Bop

Bop
Bop as seen from orbit.
Moon of Jool
Orbital Characteristics
Semi-major axis		128 500 000 m
Apoapsis		158 697 500 m
Periapsis		98 302 500 m
Orbital eccentricity		0.235
Orbital inclination		15 °
Argument of periapsis		25 °
Longitude of the ascending node		10 °
Mean anomaly		0.9 rad (at 0s UT)
Sidereal orbital period		544 507 s
		25 d 1 h 15 m 7.4 s
Synodic orbital period		547 355.1 s
Orbital velocity		1 167 - 1 884 m/s
Longest time eclipsed		10 286 s
Physical Characteristics
Equatorial radius		65 000 m
Equatorial circumference		408 407 m
Surface area		5.3092916×1010 m2
Mass		3.7261090×1019 kg
Standard gravitational parameter		2.4868349×109 m3/s2
Density		32 391.188 kg/m3
Surface gravity		0.589 m/s2 (0.06 g)
Escape velocity		276.62 m/s
Sidereal rotation period		544 507.43 s
		25 d 1 h 15 m 7.4 s
Sidereal rotational velocity		0.75005 m/s
Synchronous orbit		Outside sphere of influence
Sphere of influence		1 221 060.9 m
Atmospheric Characteristics
Atmosphere present		No
Scientific multiplier
Surface		12
Splashed		N/A
Near space		9
Outer space		8
Recovery		8

Bop is one of the five natural satellites of Jool. It seems to be a captured asteroid and has certain similarities to Gilly, another presumably captured asteroid orbiting Eve. Bop has a large crater with a white rim. Some of its mountains rise to nearly 22 km above the surface, meaning any orbit below this could possibly impact the surface. It is comparable to Minmus in that, due to its low gravity, landing is relatively easy. This low gravity results in its bulged, irregular terrain. The brownish surface color may come from solid carbon or iron oxide within the harsh landscape.

In-game Description

“

Bop is a small moon in the vicinity of Jool. In Kerbal mythology, Bop is believed to be the home of the Kraken, a mischievous creature said to play with the ships of hapless explorers, by spinning them out of control until torn asunder, then casting them into oblivion. — Kerbal Astronomical Society

”

Topography

Bop is mostly mountainous with very few flat surface areas. Due to a very low surface gravity, it is unable to achieve hydrostatic equilibrium. A noticeable feature on Bop is a very large impact crater on the northern hemisphere west to the prime meridian. The highest point on Bop is an astounding 21,758 m, marking the highest point above sea level in the Kerbol System. The point lies at 23.87° W and 64.57° N and is as high as Olympus Mons on Mars.

Like most other Kerbol bodies, excluding Minmus, the Mun and Kerbin, Bop was a single biome until version 0.90.

Spoiler: Easter Eggs Are Shown

• 

  One of the few anomalies on Bop, known as the Deep Space Kraken.

Biomes

Bop has 5 biomes.

Biome list

Bop biome map as of 1.2.1

Poles Slopes Peaks Valley Ridges

Reference frames

Time warp	Minimum Altitude
1×	Any
5×	24 500 m
10×	24 500 m
50×	24 500 m
100×	40 000 m
1 000×	60 000 m
10 000×	80 000 m
100 000×	100 000 m

Gallery

• 

  Topographical map of Bop using the ISA MapSat plugin

• 

  A polar topographical map of Bop with the same plugin

• 

  A topographic height map of Bop made with the ISA MapSat plugin

• 

  A lander on Laythe. Bop is seen as a small dot.

• 

  A small user-created probe in a valley of Bop.

• 

  A small rover on the surface of Bop. Notice the steep hills and wheels not fully on the ground due to low gravity.

• 

  A lander on Bop with two kerbals

Trivia

• Bop looks very similar to Gilly in color and shape.
• In the ingame descriptions it is mentioned that Tylo was the first of Jool's moons known, discovered when Kerbals attempted to photograph Jool. However, Bop is said to exist in Kerbal mythology, implying - rather oddly - that cameras have been present on Kerbin since antiquity.
• Right, because the ancient Romans knew about the dwarf planet Pluto when they named that god.

Changes

0.90

• Added biomes

0.18.2

• Semi-major axis increased to prevent SOI intersection with Tylo

0.17

• Initial release