🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 50.2

Radius: 14.1

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.51 AU - 0.61 AU

Year: 284 Days

Day: 13.9 Hours

Environment

Temp: -147 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 64,958,547 km

• M1: 175,329 km (0.105 R)
• M2: 627,563 km (0.084 R)
• M3: 1,438,384 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 741.8

Radius: 12.5

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.56 AU - 0.56 AU

Year: 284 Days

Day: 11.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 64,958,547 km

• M1: 155,582 km (0.11 R)
• M2: 553,662 km (0.111 R)
• M3: 958,474 km (0.034 R)
• M4: 1,493,436 km (0.099 R)
• M5: 1,899,743 km (0.119 R)
• M6: 2,330,735 km (0.119 R)
• M7: 3,061,820 km (0.036 R)
• M8: 3,482,040 km (0.034 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.3

Radius: 12.7

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.5 AU - 0.74 AU

Year: 331 Days

Day: 11.5 Hours

Environment

Temp: -148 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 64,958,547 km

• M1: 157,975 km (0.115 R)
• M2: 585,077 km (0.078 R)
• M3: 1,104,481 km (0.102 R)
• M4: 1,741,768 km (0.087 R)
• M5: 2,143,588 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.7

Radius: 10.2

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.94 AU - 1.26 AU

Year: 782 Days

Day: 12 Hours

Environment

Temp: -186 °C

Axial Tilt: 161 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 64,958,547 km

• M1: 126,859 km (0.109 R)
• M2: 585,227 km (0.075 R)
• M3: 918,980 km (0.106 R)
• M4: 1,423,573 km (0.101 R)
• M5: 2,021,217 km (0.101 R)
• M6: 2,726,571 km (0.094 R)
• M7: 3,939,959 km (0.083 R)
• M8: 4,357,636 km (0.114 R)
• M9: 4,882,127 km (0.072 R)
• M10: 5,298,607 km (0.116 R)
• M11: 5,635,053 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 985.5

Radius: 14

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.58 AU - 2 AU

Year: 1624 Days

Day: 10.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 64,958,547 km

• M1: 174,880 km (0.12 R)
• M2: 635,193 km (0.084 R)
• M3: 1,148,762 km (0.094 R)
• M4: 1,675,047 km (0.098 R)
• M5: 2,177,995 km (0.119 R)
• M6: 2,942,590 km (0.045 R)
• M7: 3,898,820 km (0.034 R)
• M8: 4,351,353 km (0.03 R)
• M9: 4,797,155 km (0.108 R)
• M10: 5,500,415 km (0.048 R)
• M11: 5,974,341 km (0.05 R)
• M12: 6,789,649 km (0.105 R)
• M13: 7,649,089 km (0.11 R)
• M14: 9,285,540 km (0.112 R)
• M15: 9,754,380 km (0.064 R)
• M16: 11,445,583 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 539.6

Radius: 12

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 2.21 AU - 2.45 AU

Year: 2412 Days

Day: 14.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 64,958,547 km

• M1: 149,299 km (0.035 R)
• M2: 555,457 km (0.08 R)
• M3: 1,031,777 km (0.109 R)
• M4: 1,881,193 km (0.056 R)
• M5: 2,595,972 km (0.101 R)
• M6: 2,993,902 km (0.092 R)
• M7: 3,877,726 km (0.083 R)
• M8: 4,281,042 km (0.092 R)
• M9: 5,195,384 km (0.118 R)
• M10: 5,711,348 km (0.109 R)
• M11: 6,522,916 km (0.12 R)
• M12: 8,034,303 km (0.108 R)
• M13: 8,438,367 km (0.099 R)
• M14: 9,119,785 km (0.051 R)
• M15: 10,049,387 km (0.087 R)
• M16: 11,936,414 km (0.094 R)
• M17: 13,390,954 km (0.118 R)
• M18: 13,915,893 km (0.117 R)
• M19: 15,335,876 km (0.1 R)
• M20: 16,351,197 km (0.076 R)
• M21: 16,900,670 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.2

Radius: 8.4

Gravity: 5.37 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 3.64 AU - 4.5 AU

Year: 5569 Days

Day: 7.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 64,958,547 km

• M1: 104,419 km (0.079 R)
• M2: 620,981 km (0.039 R)
• M3: 1,084,285 km (0.108 R)
• M4: 1,373,757 km (0.104 R)
• M5: 2,112,920 km (0.104 R)
• M6: 2,395,959 km (0.091 R)
• M7: 3,057,481 km (0.094 R)
• M8: 3,481,591 km (0.11 R)
• M9: 4,100,029 km (0.099 R)
• M10: 5,638,045 km (0.102 R)
• M11: 6,307,196 km (0.111 R)
• M12: 8,085,615 km (0.087 R)
• M13: 8,784,088 km (0.117 R)
• M14: 10,555,327 km (0.061 R)
• M15: 11,210,116 km (0.085 R)
• M16: 16,343,717 km (0.112 R)
• M17: 17,578,797 km (0.083 R)
• M18: 23,217,290 km (0.107 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 529.7

Radius: 13.3

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 4.2 AU - 4.6 AU

Year: 6260 Days

Day: 13.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 64,958,547 km

• M1: 165,455 km (0.097 R)
• M2: 1,083,089 km (0.087 R)
• M3: 1,622,688 km (0.085 R)
• M4: 2,606,892 km (0.1 R)
• M5: 3,162,649 km (0.095 R)
• M6: 3,887,749 km (0.08 R)
• M7: 4,826,775 km (0.096 R)
• M8: 5,730,346 km (0.105 R)
• M9: 6,643,791 km (0.077 R)
• M10: 7,293,495 km (0.073 R)
• M11: 8,174,327 km (0.101 R)
• M12: 9,712,791 km (0.111 R)
• M13: 10,370,573 km (0.098 R)
• M14: 12,574,449 km (0.11 R)
• M15: 13,144,716 km (0.114 R)
• M16: 14,731,202 km (0.058 R)
• M17: 15,957,455 km (0.109 R)
• M18: 16,749,875 km (0.104 R)
• M19: 18,545,947 km (0.093 R)
• M20: 19,149,724 km (0.04 R)
• M21: 19,766,516 km (0.091 R)
• M22: 22,517,920 km (0.098 R)
• M23: 23,593,230 km (0.116 R)
• M24: 25,106,711 km (0.1 R)
• M25: 28,592,043 km (0.09 R)
• M26: 30,962,421 km (0.087 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 413.7

Radius: 7.9

Gravity: 6.63 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 7.6 AU - 11.68 AU

Year: 20301 Days

Day: 23.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 64,958,547 km

• M1: 98,286 km (0.03 R)
• M2: 384,317 km (0.118 R)
• M3: 1,087,577 km (0.097 R)
• M4: 3,099,219 km (0.078 R)
• M5: 6,411,466 km (0.082 R)
• M6: 9,591,467 km (0.106 R)
• M7: 11,858,773 km (0.039 R)
• M8: 12,884,565 km (0.098 R)
• M9: 16,009,366 km (0.099 R)
• M10: 17,341,236 km (0.093 R)
• M11: 17,746,646 km (0.111 R)
• M12: 18,576,316 km (0.106 R)
• M13: 33,431,384 km (0.041 R)
• M14: 41,209,277 km (0.084 R)
• M15: 45,056,485 km (0.108 R)
• M16: 48,333,426 km (0.09 R)
• M17: 53,627,097 km (0.114 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: 412 - 11,159 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit