🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485.4

Radius: 13.9

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.42 AU - 0.66 AU

Year: 269 Days

Day: 9.8 Hours

Environment

Temp: -139 °C

Axial Tilt: 60.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 32,748,601 km

• M1: 172,935 km (0.111 R)
• M2: 676,332 km (0.071 R)
• M3: 1,207,554 km (0.11 R)
• M4: 1,743,862 km (0.109 R)
• M5: 2,586,248 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 117.6

Radius: 11.9

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.75 AU - 0.79 AU

Year: 458 Days

Day: 12.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 32,748,601 km

• M1: 147,952 km (0.093 R)
• M2: 568,322 km (0.12 R)
• M3: 948,600 km (0.091 R)
• M4: 1,497,475 km (0.045 R)
• M5: 2,319,365 km (0.115 R)
• M6: 2,781,623 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.3

Radius: 13.5

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.73 AU - 0.91 AU

Year: 504 Days

Day: 14.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 32,748,601 km

• M1: 167,849 km (0.088 R)
• M2: 594,053 km (0.059 R)
• M3: 1,484,160 km (0.047 R)
• M4: 2,548,250 km (0.116 R)
• M5: 4,149,097 km (0.066 R)
• M6: 4,680,917 km (0.077 R)
• M7: 5,105,476 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.3

Radius: 13.9

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.82 AU - 0.94 AU

Year: 560 Days

Day: 11.2 Hours

Environment

Temp: -174 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 32,748,601 km

• M1: 174,282 km (0.088 R)
• M2: 644,318 km (0.048 R)
• M3: 1,200,074 km (0.075 R)
• M4: 1,700,928 km (0.086 R)
• M5: 2,342,852 km (0.034 R)
• M6: 3,031,152 km (0.112 R)
• M7: 4,286,577 km (0.085 R)
• M8: 4,754,669 km (0.045 R)
• M9: 5,240,713 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 112.4

Radius: 11.7

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.83 AU - 1.27 AU

Year: 730 Days

Day: 8.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 32,748,601 km

• M1: 145,559 km (0.12 R)
• M2: 528,679 km (0.078 R)
• M3: 1,075,459 km (0.034 R)
• M4: 1,706,912 km (0.03 R)
• M5: 3,200,198 km (0.108 R)
• M6: 3,657,219 km (0.082 R)
• M7: 4,095,691 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 860.3

Radius: 8.3

Gravity: 12.49 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.18 AU - 1.3 AU

Year: 937 Days

Day: 11.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 32,748,601 km

• M1: 103,223 km (0.107 R)
• M2: 544,536 km (0.095 R)
• M3: 863,629 km (0.118 R)
• M4: 1,338,303 km (0.046 R)
• M5: 1,622,838 km (0.096 R)
• M6: 2,250,401 km (0.106 R)
• M7: 2,584,004 km (0.068 R)
• M8: 2,846,099 km (0.04 R)
• M9: 3,195,261 km (0.031 R)
• M10: 3,996,358 km (0.062 R)
• M11: 4,594,749 km (0.111 R)
• M12: 5,192,991 km (0.042 R)
• M13: 5,737,078 km (0.046 R)
• M14: 6,296,574 km (0.11 R)
• M15: 6,727,865 km (0.109 R)
• M16: 7,203,137 km (0.083 R)
• M17: 9,273,722 km (0.097 R)
• M18: 9,742,861 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763

Radius: 10.4

Gravity: 7.05 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.14 AU - 1.74 AU

Year: 1172 Days

Day: 14.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 32,748,601 km

• M1: 163,062 km (0.042 R)
• M2: 816,804 km (0.118 R)
• M3: 1,645,277 km (0.081 R)
• M4: 2,013,737 km (0.113 R)
• M5: 3,912,583 km (0.082 R)
• M6: 5,095,004 km (0.116 R)
• M7: 5,544,845 km (0.104 R)
• M8: 7,880,068 km (0.055 R)
• M9: 9,843,241 km (0.11 R)
• M10: 10,805,454 km (0.06 R)
• M11: 11,481,038 km (0.034 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.9

Radius: 14.2

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 2.17 AU - 2.25 AU

Year: 2228 Days

Day: 11.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 32,748,601 km

• M1: 177,722 km (0.066 R)
• M2: 631,453 km (0.104 R)
• M3: 1,246,749 km (0.101 R)
• M4: 2,125,187 km (0.071 R)
• M5: 2,634,568 km (0.102 R)
• M6: 3,131,682 km (0.052 R)
• M7: 4,455,773 km (0.093 R)
• M8: 4,908,007 km (0.118 R)
• M9: 5,954,444 km (0.088 R)
• M10: 7,117,119 km (0.032 R)
• M11: 7,622,760 km (0.037 R)
• M12: 8,364,765 km (0.106 R)
• M13: 9,285,540 km (0.052 R)
• M14: 10,063,000 km (0.096 R)
• M15: 14,396,551 km (0.105 R)
• M16: 15,116,416 km (0.054 R)
• M17: 15,625,198 km (0.1 R)

Asteroid Belt

Center: 2.79 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.6

Radius: 15

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 2.91 AU - 3.81 AU

Year: 4177 Days

Day: 14.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,748,601 km

• M1: 193,280 km (0.096 R)
• M2: 1,076,207 km (0.106 R)
• M3: 2,665,535 km (0.104 R)
• M4: 3,330,348 km (0.086 R)
• M5: 4,123,067 km (0.1 R)
• M6: 8,013,509 km (0.067 R)
• M7: 9,739,121 km (0.101 R)
• M8: 10,959,390 km (0.034 R)
• M9: 13,244,348 km (0.113 R)
• M10: 15,370,882 km (0.07 R)

Planet 10 - Gas Giant

Semi-Major Axis: 3.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960.7

Radius: 9.3

Gravity: 11.11 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.76 AU - 4.58 AU

Year: 4769 Days

Day: 6.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 32,748,601 km

• M1: 115,789 km (0.105 R)
• M2: 523,144 km (0.096 R)
• M3: 1,116,299 km (0.101 R)
• M4: 1,755,232 km (0.09 R)
• M5: 2,283,462 km (0.118 R)
• M6: 2,674,212 km (0.106 R)
• M7: 3,568,956 km (0.053 R)
• M8: 4,097,635 km (0.091 R)
• M9: 4,418,972 km (0.04 R)
• M10: 4,757,212 km (0.113 R)
• M11: 7,024,368 km (0.097 R)
• M12: 8,431,785 km (0.084 R)
• M13: 10,241,321 km (0.061 R)
• M14: 10,696,697 km (0.067 R)
• M15: 13,772,878 km (0.105 R)
• M16: 14,271,786 km (0.055 R)
• M17: 16,450,679 km (0.055 R)
• M18: 18,306,591 km (0.048 R)
• M19: 24,788,068 km (0.073 R)
• M20: 26,533,875 km (0.099 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 226 - 13,537 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit