🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.6

Radius: 14.4

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.61 AU - 0.79 AU

Year: 404 Days

Day: 11.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,779,730 km

• M1: 179,069 km (0.098 R)
• M2: 633,397 km (0.085 R)
• M3: 1,086,829 km (0.104 R)
• M4: 1,894,358 km (0.098 R)
• M5: 3,401,706 km (0.112 R)
• M6: 4,244,690 km (0.092 R)
• M7: 5,032,024 km (0.071 R)
• M8: 5,810,082 km (0.04 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.6

Radius: 11.7

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.6 AU - 0.82 AU

Year: 413 Days

Day: 8.7 Hours

Environment

Temp: -150 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,779,730 km

• M1: 146,008 km (0.055 R)
• M2: 513,270 km (0.093 R)
• M3: 1,145,321 km (0.12 R)
• M4: 1,539,512 km (0.115 R)
• M5: 1,934,151 km (0.078 R)
• M6: 2,440,839 km (0.115 R)
• M7: 2,853,280 km (0.066 R)
• M8: 3,257,793 km (0.07 R)
• M9: 3,832,847 km (0.105 R)
• M10: 4,354,046 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480.9

Radius: 9.1

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.36 AU - 2.2 AU

Year: 1639 Days

Day: 9.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,779,730 km

• M1: 113,246 km (0.097 R)
• M2: 493,523 km (0.063 R)
• M3: 1,023,698 km (0.06 R)
• M4: 1,771,089 km (0.071 R)
• M5: 2,160,343 km (0.1 R)
• M6: 2,467,617 km (0.095 R)
• M7: 3,832,398 km (0.066 R)
• M8: 4,432,435 km (0.075 R)
• M9: 5,448,504 km (0.111 R)
• M10: 6,022,810 km (0.095 R)
• M11: 6,612,675 km (0.105 R)
• M12: 7,214,507 km (0.077 R)
• M13: 7,555,590 km (0.12 R)
• M14: 7,852,542 km (0.112 R)
• M15: 9,332,663 km (0.106 R)
• M16: 9,643,378 km (0.079 R)
• M17: 10,220,227 km (0.117 R)
• M18: 11,834,987 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480.4

Radius: 10.9

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 1.88 AU - 2.5 AU

Year: 2237 Days

Day: 10.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 70,779,730 km

• M1: 135,835 km (0.103 R)
• M2: 621,878 km (0.059 R)
• M3: 1,740,571 km (0.091 R)
• M4: 2,585,350 km (0.113 R)
• M5: 3,108,793 km (0.071 R)
• M6: 3,563,720 km (0.084 R)
• M7: 4,119,177 km (0.105 R)
• M8: 4,731,481 km (0.104 R)
• M9: 5,774,777 km (0.099 R)
• M10: 6,517,082 km (0.104 R)
• M11: 7,073,586 km (0.112 R)
• M12: 7,632,783 km (0.039 R)
• M13: 8,713,777 km (0.049 R)
• M14: 9,291,225 km (0.114 R)
• M15: 10,919,747 km (0.085 R)
• M16: 11,629,290 km (0.028 R)
• M17: 13,686,410 km (0.08 R)
• M18: 14,247,252 km (0.11 R)
• M19: 15,003,918 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.1

Radius: 9.9

Gravity: 7.3 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 2.68 AU - 2.98 AU

Year: 3286 Days

Day: 7.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 70,779,730 km

• M1: 132,394 km (0.098 R)
• M2: 470,186 km (0.029 R)
• M3: 836,252 km (0.098 R)
• M4: 1,318,406 km (0.045 R)
• M5: 1,641,837 km (0.045 R)
• M6: 1,992,943 km (0.099 R)
• M7: 2,438,894 km (0.084 R)
• M8: 3,324,364 km (0.096 R)
• M9: 3,729,774 km (0.113 R)
• M10: 4,366,163 km (0.092 R)
• M11: 6,020,566 km (0.099 R)
• M12: 6,506,909 km (0.098 R)
• M13: 7,269,858 km (0.114 R)
• M14: 8,228,032 km (0.063 R)
• M15: 9,343,285 km (0.087 R)
• M16: 12,962,356 km (0.032 R)
• M17: 16,524,880 km (0.081 R)
• M18: 17,999,616 km (0.047 R)
• M19: 19,683,938 km (0.087 R)
• M20: 21,209,238 km (0.044 R)
• M21: 21,800,898 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981.6

Radius: 14

Gravity: 5.01 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 3.23 AU - 4.19 AU

Year: 4933 Days

Day: 6.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 70,779,730 km

• M1: 175,478 km (0.093 R)
• M2: 626,516 km (0.073 R)
• M3: 1,164,320 km (0.117 R)
• M4: 1,688,362 km (0.108 R)
• M5: 2,164,980 km (0.1 R)
• M6: 2,714,304 km (0.079 R)
• M7: 4,220,156 km (0.104 R)
• M8: 4,811,965 km (0.12 R)
• M9: 6,131,568 km (0.077 R)
• M10: 6,722,480 km (0.093 R)
• M11: 12,034,700 km (0.098 R)
• M12: 12,963,852 km (0.074 R)
• M13: 15,082,158 km (0.113 R)
• M14: 16,347,307 km (0.098 R)
• M15: 16,847,563 km (0.116 R)
• M16: 17,944,414 km (0.112 R)
• M17: 21,745,696 km (0.097 R)
• M18: 23,202,031 km (0.12 R)
• M19: 24,154,820 km (0.075 R)
• M20: 29,314,451 km (0.112 R)
• M21: 31,090,477 km (0.109 R)
• M22: 32,838,229 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207

Radius: 14.8

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 3.59 AU - 4.67 AU

Year: 5793 Days

Day: 6.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,779,730 km

• M1: 186,698 km (0.076 R)
• M2: 1,110,315 km (0.094 R)
• M3: 1,645,876 km (0.097 R)
• M4: 2,204,325 km (0.1 R)
• M5: 3,005,421 km (0.092 R)
• M6: 3,852,444 km (0.104 R)
• M7: 5,596,606 km (0.089 R)
• M8: 6,244,365 km (0.102 R)
• M9: 7,723,289 km (0.06 R)
• M10: 8,562,683 km (0.047 R)
• M11: 9,314,263 km (0.06 R)
• M12: 9,839,351 km (0.061 R)
• M13: 12,998,409 km (0.11 R)
• M14: 14,089,427 km (0.119 R)
• M15: 15,189,270 km (0.094 R)
• M16: 18,073,966 km (0.089 R)
• M17: 19,251,900 km (0.12 R)
• M18: 20,106,552 km (0.066 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 507.2

Radius: 3.1

Gravity: 52.78 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 8.21 AU - 11.19 AU

Year: 20853 Days

Day: 22.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 70,779,730 km

• M1: 39,195 km (0.116 R)
• M2: 339,288 km (0.116 R)
• M3: 444,306 km (0.102 R)
• M4: 1,400,236 km (0.034 R)
• M5: 2,721,933 km (0.03 R)
• M6: 3,097,723 km (0.089 R)
• M7: 3,257,194 km (0.095 R)
• M8: 4,107,060 km (0.108 R)
• M9: 5,094,705 km (0.115 R)
• M10: 5,546,042 km (0.1 R)
• M11: 5,942,177 km (0.085 R)
• M12: 6,527,853 km (0.082 R)
• M13: 9,985,359 km (0.03 R)
• M14: 13,277,709 km (0.103 R)
• M15: 22,478,726 km (0.104 R)
• M16: 23,480,283 km (0.117 R)
• M17: 25,038,046 km (0.063 R)
• M18: 27,671,268 km (0.108 R)
• M19: 28,012,949 km (0.075 R)
• M20: 36,122,351 km (0.027 R)
• M21: 39,905,382 km (0.034 R)
• M22: 41,519,543 km (0.077 R)
• M23: 42,872,057 km (0.112 R)
• M24: 45,033,896 km (0.115 R)
• M25: 45,982,197 km (0.107 R)
• M26: 46,301,289 km (0.084 R)
• M27: 47,755,380 km (0.115 R)
• M28: 48,411,217 km (0.098 R)
• M29: 49,908,842 km (0.092 R)
• M30: 51,780,909 km (0.08 R)
• M31: 58,795,105 km (0.06 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 453 - 11,202 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit