🌌 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: 356.3

Radius: 9

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.47 AU - 0.65 AU

Year: 279 Days

Day: 11.5 Hours

Environment

Temp: -144 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 27,011,621 km

• M1: 111,899 km (0.049 R)
• M2: 501,751 km (0.091 R)
• M3: 1,069,176 km (0.036 R)
• M4: 1,368,521 km (0.115 R)
• M5: 1,693,747 km (0.101 R)
• M6: 2,049,491 km (0.117 R)
• M7: 2,454,751 km (0.074 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 593.8

Radius: 14.1

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.56 AU - 0.62 AU

Year: 302 Days

Day: 10.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 27,011,621 km

• M1: 175,478 km (0.068 R)
• M2: 679,474 km (0.085 R)
• M3: 1,156,392 km (0.045 R)
• M4: 1,873,265 km (0.11 R)
• M5: 2,610,483 km (0.112 R)
• M6: 3,967,036 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 752.2

Radius: 8.3

Gravity: 10.92 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.91 AU - 1.43 AU

Year: 844 Days

Day: 13.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,011,621 km

• M1: 103,522 km (0.052 R)
• M2: 400,174 km (0.094 R)
• M3: 733,030 km (0.094 R)
• M4: 1,031,328 km (0.069 R)
• M5: 1,329,775 km (0.105 R)
• M6: 2,292,438 km (0.044 R)
• M7: 2,784,465 km (0.03 R)
• M8: 3,317,482 km (0.084 R)
• M9: 4,105,414 km (0.091 R)
• M10: 5,582,245 km (0.088 R)
• M11: 7,845,511 km (0.098 R)
• M12: 8,988,139 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.4

Radius: 14

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.44 AU - 1.8 AU

Year: 1375 Days

Day: 12.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 27,011,621 km

• M1: 174,132 km (0.04 R)
• M2: 707,299 km (0.085 R)
• M3: 1,359,396 km (0.073 R)
• M4: 1,903,334 km (0.064 R)
• M5: 2,680,345 km (0.093 R)
• M6: 3,598,278 km (0.088 R)
• M7: 5,429,356 km (0.111 R)
• M8: 5,965,963 km (0.086 R)
• M9: 8,590,209 km (0.029 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.2

Radius: 13

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 2.02 AU - 2.58 AU

Year: 2326 Days

Day: 7.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 27,011,621 km

• M1: 161,715 km (0.117 R)
• M2: 584,180 km (0.091 R)
• M3: 1,168,359 km (0.112 R)
• M4: 1,823,448 km (0.049 R)
• M5: 2,237,236 km (0.035 R)
• M6: 3,614,285 km (0.083 R)
• M7: 4,054,102 km (0.098 R)
• M8: 6,080,256 km (0.107 R)
• M9: 8,087,261 km (0.093 R)
• M10: 8,543,086 km (0.117 R)
• M11: 9,904,576 km (0.052 R)
• M12: 11,568,104 km (0.102 R)
• M13: 12,274,804 km (0.066 R)
• M14: 13,231,782 km (0.076 R)
• M15: 14,144,329 km (0.094 R)
• M16: 14,616,161 km (0.084 R)
• M17: 15,196,301 km (0.062 R)
• M18: 15,691,321 km (0.044 R)
• M19: 16,870,900 km (0.113 R)
• M20: 17,834,759 km (0.078 R)
• M21: 18,891,518 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 101

Radius: 8.6

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 2.08 AU - 2.86 AU

Year: 2589 Days

Day: 6.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,011,621 km

• M1: 106,962 km (0.091 R)
• M2: 1,130,362 km (0.113 R)
• M3: 1,513,482 km (0.028 R)
• M4: 2,474,648 km (0.064 R)
• M5: 3,874,585 km (0.079 R)
• M6: 5,496,226 km (0.104 R)
• M7: 6,248,254 km (0.059 R)
• M8: 7,162,297 km (0.11 R)
• M9: 7,601,666 km (0.1 R)
• M10: 8,669,496 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 186.4

Radius: 9.8

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 3.15 AU - 3.21 AU

Year: 3782 Days

Day: 6.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 27,011,621 km

• M1: 177,423 km (0.06 R)
• M2: 660,026 km (0.092 R)
• M3: 1,123,031 km (0.06 R)
• M4: 1,732,343 km (0.102 R)
• M5: 2,521,921 km (0.094 R)
• M6: 2,892,774 km (0.027 R)
• M7: 4,210,731 km (0.076 R)
• M8: 5,326,283 km (0.114 R)
• M9: 6,064,099 km (0.089 R)
• M10: 7,282,724 km (0.056 R)
• M11: 9,883,183 km (0.064 R)
• M12: 11,220,738 km (0.1 R)
• M13: 12,552,757 km (0.087 R)
• M14: 14,075,065 km (0.092 R)
• M15: 14,972,054 km (0.046 R)
• M16: 15,294,886 km (0.037 R)
• M17: 15,859,169 km (0.095 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 334.9

Radius: 10.1

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 4.17 AU - 4.53 AU

Year: 6050 Days

Day: 12.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 27,011,621 km

• M1: 125,662 km (0.069 R)
• M2: 540,647 km (0.09 R)
• M3: 1,298,210 km (0.087 R)
• M4: 1,636,152 km (0.078 R)
• M5: 2,338,664 km (0.1 R)
• M6: 2,725,524 km (0.119 R)
• M7: 3,080,370 km (0.109 R)
• M8: 4,453,977 km (0.085 R)
• M9: 6,198,289 km (0.075 R)
• M10: 6,533,238 km (0.047 R)
• M11: 6,977,245 km (0.097 R)
• M12: 8,175,823 km (0.036 R)
• M13: 9,112,455 km (0.1 R)
• M14: 13,583,786 km (0.088 R)
• M15: 16,462,797 km (0.077 R)
• M16: 18,013,977 km (0.119 R)
• M17: 19,207,469 km (0.101 R)
• M18: 20,654,529 km (0.083 R)
• M19: 23,986,971 km (0.06 R)
• M20: 26,610,320 km (0.061 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 509 - 15,559 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit