🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.84

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.47 AU - 0.69 AU

Year: 290 Days

Day: 20.1 Hours

Environment

Temp: -118 °C

Axial Tilt: 8.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 257.9

Radius: 14.8

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.78 AU - 1.28 AU

Year: 686 Days

Day: 10.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 64,569,780 km

• M1: 184,454 km (0.109 R)
• M2: 719,865 km (0.094 R)
• M3: 1,614,909 km (0.092 R)
• M4: 2,168,272 km (0.066 R)
• M5: 2,973,407 km (0.054 R)
• M6: 3,742,789 km (0.079 R)
• M7: 5,198,227 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.8

Radius: 9.9

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.04 AU - 1.34 AU

Year: 852 Days

Day: 7.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 64,569,780 km

• M1: 123,119 km (0.112 R)
• M2: 518,057 km (0.069 R)
• M3: 883,375 km (0.117 R)
• M4: 1,224,459 km (0.064 R)
• M5: 1,577,659 km (0.026 R)
• M6: 2,474,349 km (0.093 R)
• M7: 3,035,490 km (0.055 R)
• M8: 3,385,699 km (0.11 R)
• M9: 3,748,923 km (0.1 R)
• M10: 4,228,234 km (0.118 R)
• M11: 4,634,243 km (0.113 R)
• M12: 4,947,351 km (0.081 R)
• M13: 5,543,050 km (0.11 R)
• M14: 5,877,551 km (0.091 R)
• M15: 7,264,622 km (0.113 R)
• M16: 7,575,487 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368

Radius: 15

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 2.02 AU - 2.2 AU

Year: 2011 Days

Day: 14.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 64,569,780 km

• M1: 186,549 km (0.074 R)
• M2: 728,093 km (0.085 R)
• M3: 1,977,235 km (0.106 R)
• M4: 2,577,571 km (0.094 R)
• M5: 3,299,082 km (0.078 R)
• M6: 4,807,178 km (0.076 R)
• M7: 5,379,988 km (0.078 R)
• M8: 6,372,420 km (0.077 R)
• M9: 7,065,657 km (0.094 R)
• M10: 8,399,771 km (0.092 R)
• M11: 9,358,095 km (0.115 R)
• M12: 10,321,655 km (0.078 R)
• M13: 11,817,035 km (0.059 R)
• M14: 12,371,295 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972.3

Radius: 12.5

Gravity: 6.22 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 4.25 AU - 7.08 AU

Year: 8834 Days

Day: 7.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 64,569,780 km

• M1: 155,582 km (0.095 R)
• M2: 619,934 km (0.079 R)
• M3: 1,054,815 km (0.109 R)
• M4: 1,558,211 km (0.119 R)
• M5: 1,997,431 km (0.065 R)
• M6: 3,043,120 km (0.094 R)
• M7: 3,464,088 km (0.076 R)
• M8: 4,004,436 km (0.088 R)
• M9: 4,905,015 km (0.077 R)
• M10: 5,387,169 km (0.092 R)
• M11: 7,683,496 km (0.117 R)
• M12: 8,114,488 km (0.1 R)
• M13: 9,024,940 km (0.057 R)
• M14: 9,554,068 km (0.065 R)
• M15: 11,881,063 km (0.118 R)
• M16: 12,813,955 km (0.086 R)
• M17: 14,958,141 km (0.098 R)
• M18: 15,631,930 km (0.072 R)
• M19: 16,255,454 km (0.073 R)
• M20: 16,967,839 km (0.118 R)
• M21: 18,531,436 km (0.041 R)
• M22: 21,179,468 km (0.106 R)
• M23: 21,686,755 km (0.097 R)
• M24: 23,257,383 km (0.12 R)
• M25: 24,345,707 km (0.111 R)
• M26: 26,331,768 km (0.114 R)
• M27: 27,915,711 km (0.086 R)
• M28: 31,272,986 km (0.075 R)
• M29: 39,156,644 km (0.084 R)
• M30: 46,401,968 km (0.119 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 714.4

Radius: 7.6

Gravity: 12.37 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 5.47 AU - 6.93 AU

Year: 10127 Days

Day: 17.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 64,569,780 km

• M1: 94,845 km (0.089 R)
• M2: 375,191 km (0.031 R)
• M3: 737,667 km (0.052 R)
• M4: 1,004,998 km (0.098 R)
• M5: 1,363,435 km (0.078 R)
• M6: 1,638,396 km (0.035 R)
• M7: 1,901,239 km (0.065 R)
• M8: 2,473,601 km (0.114 R)
• M9: 3,516,148 km (0.105 R)
• M10: 3,823,871 km (0.094 R)
• M11: 4,950,642 km (0.116 R)
• M12: 6,100,900 km (0.114 R)
• M13: 6,395,608 km (0.046 R)
• M14: 11,199,944 km (0.119 R)
• M15: 14,096,757 km (0.079 R)
• M16: 16,448,435 km (0.076 R)
• M17: 17,679,925 km (0.039 R)
• M18: 19,840,418 km (0.054 R)
• M19: 21,402,967 km (0.088 R)
• M20: 21,912,947 km (0.118 R)
• M21: 27,169,816 km (0.116 R)
• M22: 29,824,430 km (0.027 R)
• M23: 32,759,091 km (0.112 R)
• M24: 34,586,130 km (0.047 R)
• M25: 35,761,820 km (0.074 R)
• M26: 38,317,251 km (0.097 R)
• M27: 38,566,929 km (0.113 R)
• M28: 40,086,993 km (0.119 R)
• M29: 40,344,152 km (0.112 R)
• M30: 43,788,643 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 530.2

Radius: 3.4

Gravity: 45.87 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 7.56 AU - 10.48 AU

Year: 17771 Days

Day: 18 Hours

Environment

Temp: -218 °C

Axial Tilt: 85.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 64,569,780 km

• M1: 42,785 km (0.094 R)
• M2: 156,629 km (0.03 R)
• M3: 268,827 km (0.108 R)
• M4: 787,184 km (0.112 R)
• M5: 945,459 km (0.085 R)
• M6: 1,698,833 km (0.117 R)
• M7: 1,927,718 km (0.098 R)
• M8: 2,097,811 km (0.061 R)
• M9: 2,277,927 km (0.111 R)
• M10: 2,646,237 km (0.105 R)
• M11: 2,856,571 km (0.117 R)
• M12: 3,610,993 km (0.103 R)
• M13: 4,754,968 km (0.077 R)
• M14: 5,539,011 km (0.108 R)
• M15: 6,405,482 km (0.06 R)
• M16: 7,001,629 km (0.108 R)
• M17: 8,402,164 km (0.077 R)
• M18: 10,146,625 km (0.059 R)
• M19: 11,133,223 km (0.09 R)
• M20: 15,272,596 km (0.083 R)
• M21: 17,845,081 km (0.068 R)
• M22: 21,148,053 km (0.044 R)
• M23: 25,144,560 km (0.101 R)
• M24: 29,272,264 km (0.091 R)
• M25: 30,311,969 km (0.106 R)
• M26: 40,091,332 km (0.108 R)
• M27: 41,950,384 km (0.049 R)
• M28: 43,418,987 km (0.078 R)
• M29: 50,453,079 km (0.049 R)
• M30: 50,617,487 km (0.116 R)
• M31: 55,017,908 km (0.086 R)
• M32: 56,953,854 km (0.115 R)
• M33: 59,117,189 km (0.054 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 374 - 10,996 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit