🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.5

Radius: 10.8

Gravity: 8.18 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.77 AU - 0.99 AU

Year: 542 Days

Day: 10.5 Hours

Environment

Temp: -144 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,787,255 km

• M1: 134,339 km (0.112 R)
• M2: 494,421 km (0.106 R)
• M3: 848,220 km (0.098 R)
• M4: 1,192,893 km (0.084 R)
• M5: 1,752,389 km (0.082 R)
• M6: 2,308,744 km (0.072 R)
• M7: 2,886,341 km (0.105 R)
• M8: 3,336,033 km (0.111 R)
• M9: 4,758,110 km (0.069 R)
• M10: 5,247,594 km (0.117 R)
• M11: 5,864,237 km (0.098 R)
• M12: 6,268,749 km (0.107 R)
• M13: 6,795,483 km (0.107 R)
• M14: 7,439,652 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 423.1

Radius: 14.1

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.89 AU - 0.97 AU

Year: 588 Days

Day: 13.8 Hours

Environment

Temp: -146 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,787,255 km

• M1: 175,329 km (0.106 R)
• M2: 623,075 km (0.048 R)
• M3: 1,068,578 km (0.116 R)
• M4: 1,668,465 km (0.056 R)
• M5: 2,120,699 km (0.096 R)
• M6: 2,840,415 km (0.077 R)
• M7: 3,680,856 km (0.072 R)
• M8: 4,563,782 km (0.115 R)
• M9: 5,303,095 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.2

Radius: 12.3

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.86 AU - 1.2 AU

Year: 686 Days

Day: 14.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,787,255 km

• M1: 153,039 km (0.117 R)
• M2: 545,883 km (0.114 R)
• M3: 941,868 km (0.049 R)
• M4: 1,439,580 km (0.102 R)
• M5: 1,852,620 km (0.047 R)
• M6: 2,407,030 km (0.067 R)
• M7: 3,232,212 km (0.078 R)
• M8: 3,997,704 km (0.1 R)
• M9: 4,615,992 km (0.113 R)
• M10: 5,870,220 km (0.089 R)
• M11: 6,796,680 km (0.034 R)
• M12: 7,911,783 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 252

Radius: 12.3

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.4 AU - 1.48 AU

Year: 1134 Days

Day: 6.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 87.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,787,255 km

• M1: 153,487 km (0.116 R)
• M2: 635,641 km (0.074 R)
• M3: 1,175,390 km (0.105 R)
• M4: 1,917,994 km (0.059 R)
• M5: 2,320,263 km (0.117 R)
• M6: 2,871,382 km (0.104 R)
• M7: 3,286,516 km (0.06 R)
• M8: 4,029,119 km (0.099 R)
• M9: 4,425,105 km (0.098 R)
• M10: 5,207,651 km (0.052 R)
• M11: 6,158,944 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 576.3

Radius: 13.4

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.57 AU - 2.25 AU

Year: 1732 Days

Day: 9 Hours

Environment

Temp: -193 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 35,787,255 km

• M1: 172,486 km (0.118 R)
• M2: 626,067 km (0.117 R)
• M3: 1,232,986 km (0.034 R)
• M4: 2,119,951 km (0.111 R)
• M5: 2,580,114 km (0.062 R)
• M6: 3,445,389 km (0.097 R)
• M7: 4,457,867 km (0.055 R)
• M8: 5,750,243 km (0.03 R)
• M9: 6,607,888 km (0.091 R)
• M10: 7,658,962 km (0.114 R)
• M11: 9,472,836 km (0.115 R)
• M12: 10,125,681 km (0.072 R)
• M13: 10,600,356 km (0.111 R)
• M14: 11,054,385 km (0.091 R)
• M15: 11,852,490 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.3

Radius: 9.3

Gravity: 9.99 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 4.26 AU - 4.42 AU

Year: 5931 Days

Day: 10.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 35,787,255 km

• M1: 172,486 km (0.025 R)
• M2: 692,040 km (0.102 R)
• M3: 2,430,965 km (0.089 R)
• M4: 3,074,685 km (0.112 R)
• M5: 3,686,540 km (0.062 R)
• M6: 3,997,255 km (0.078 R)
• M7: 4,617,189 km (0.108 R)
• M8: 8,267,227 km (0.052 R)
• M9: 9,492,284 km (0.058 R)
• M10: 10,546,799 km (0.081 R)
• M11: 13,833,614 km (0.106 R)
• M12: 14,945,426 km (0.027 R)
• M13: 20,656,474 km (0.078 R)
• M14: 20,956,418 km (0.109 R)
• M15: 22,499,520 km (0.105 R)
• M16: 23,460,985 km (0.106 R)
• M17: 25,897,336 km (0.079 R)
• M18: 26,686,465 km (0.117 R)
• M19: 29,433,231 km (0.106 R)
• M20: 31,662,539 km (0.116 R)
• M21: 33,690,637 km (0.112 R)
• M22: 34,736,626 km (0.085 R)
• M23: 35,911,866 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.7

Radius: 11.4

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 4.92 AU - 6.38 AU

Year: 8810 Days

Day: 13.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 35,787,255 km

• M1: 141,819 km (0.047 R)
• M2: 805,585 km (0.099 R)
• M3: 1,165,517 km (0.11 R)
• M4: 1,677,890 km (0.097 R)
• M5: 2,285,257 km (0.106 R)
• M6: 3,644,803 km (0.113 R)
• M7: 4,307,970 km (0.073 R)
• M8: 4,783,990 km (0.044 R)
• M9: 5,644,627 km (0.111 R)
• M10: 7,125,496 km (0.112 R)
• M11: 7,672,426 km (0.032 R)
• M12: 9,669,408 km (0.113 R)
• M13: 10,097,407 km (0.08 R)
• M14: 12,879,928 km (0.086 R)
• M15: 14,233,041 km (0.051 R)
• M16: 15,613,979 km (0.111 R)
• M17: 16,005,775 km (0.091 R)
• M18: 16,605,513 km (0.05 R)
• M19: 17,568,325 km (0.112 R)
• M20: 23,883,599 km (0.063 R)
• M21: 24,316,835 km (0.089 R)
• M22: 25,738,463 km (0.113 R)
• M23: 28,649,488 km (0.118 R)
• M24: 29,040,537 km (0.096 R)
• M25: 35,117,352 km (0.079 R)
• M26: 37,628,352 km (0.111 R)
• M27: 38,451,739 km (0.041 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 156.4

Radius: 7

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 6.98 AU - 8.04 AU

Year: 13501 Days

Day: 19.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 35,787,255 km

• M1: 88,263 km (0.1 R)
• M2: 385,663 km (0.072 R)
• M3: 1,171,351 km (0.115 R)
• M4: 1,405,322 km (0.073 R)
• M5: 1,939,686 km (0.105 R)
• M6: 2,657,157 km (0.116 R)
• M7: 3,005,421 km (0.034 R)
• M8: 3,361,913 km (0.072 R)
• M9: 3,723,042 km (0.089 R)
• M10: 6,390,223 km (0.054 R)
• M11: 7,607,052 km (0.087 R)
• M12: 9,141,926 km (0.072 R)
• M13: 9,756,025 km (0.087 R)
• M14: 10,728,411 km (0.045 R)
• M15: 12,332,250 km (0.072 R)
• M16: 13,467,698 km (0.086 R)
• M17: 13,804,592 km (0.074 R)
• M18: 15,148,131 km (0.115 R)
• M19: 17,093,950 km (0.062 R)
• M20: 19,915,366 km (0.111 R)
• M21: 20,871,147 km (0.106 R)
• M22: 21,398,180 km (0.054 R)
• M23: 22,715,240 km (0.115 R)
• M24: 34,622,034 km (0.114 R)
• M25: 35,254,384 km (0.113 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 428 - 11,823 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit