🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.23

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.52 AU - 0.7 AU

Year: 313 Days

Day: 35.6 Hours

Environment

Temp: -122 °C

Axial Tilt: 3.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609.2

Radius: 10.5

Gravity: 5.53 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.77 AU - 0.99 AU

Year: 542 Days

Day: 8.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,065,291 km

• M1: 130,599 km (0.108 R)
• M2: 523,144 km (0.099 R)
• M3: 1,034,768 km (0.046 R)
• M4: 1,458,878 km (0.099 R)
• M5: 2,015,383 km (0.039 R)
• M6: 3,164,444 km (0.099 R)
• M7: 3,491,764 km (0.094 R)
• M8: 3,855,436 km (0.111 R)
• M9: 5,150,206 km (0.098 R)
• M10: 5,502,359 km (0.103 R)
• M11: 6,578,566 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488.1

Radius: 14.7

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 2 AU - 2 AU

Year: 1855 Days

Day: 13.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,065,291 km

• M1: 182,809 km (0.063 R)
• M2: 654,640 km (0.108 R)
• M3: 1,503,309 km (0.094 R)
• M4: 2,635,615 km (0.042 R)
• M5: 3,522,431 km (0.053 R)
• M6: 4,658,926 km (0.103 R)
• M7: 5,334,361 km (0.069 R)
• M8: 5,820,554 km (0.1 R)
• M9: 6,959,592 km (0.091 R)
• M10: 7,844,763 km (0.085 R)
• M11: 8,683,558 km (0.111 R)
• M12: 9,774,725 km (0.101 R)
• M13: 11,893,031 km (0.097 R)
• M14: 13,438,676 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.8

Radius: 11.8

Gravity: 6.96 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 3.39 AU - 4.09 AU

Year: 4745 Days

Day: 6.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 55,065,291 km

• M1: 146,756 km (0.11 R)
• M2: 680,820 km (0.104 R)
• M3: 1,175,241 km (0.048 R)
• M4: 1,667,567 km (0.083 R)
• M5: 2,155,556 km (0.098 R)
• M6: 2,756,490 km (0.083 R)
• M7: 3,509,416 km (0.095 R)
• M8: 4,100,178 km (0.05 R)
• M9: 5,138,088 km (0.069 R)
• M10: 5,599,448 km (0.04 R)
• M11: 6,909,477 km (0.11 R)
• M12: 9,348,521 km (0.085 R)
• M13: 10,082,597 km (0.077 R)
• M14: 10,486,512 km (0.101 R)
• M15: 11,089,092 km (0.084 R)
• M16: 14,230,647 km (0.058 R)
• M17: 14,969,810 km (0.055 R)
• M18: 16,961,107 km (0.049 R)
• M19: 17,597,946 km (0.089 R)
• M20: 22,663,928 km (0.086 R)
• M21: 23,908,881 km (0.094 R)
• M22: 24,467,629 km (0.077 R)
• M23: 28,447,830 km (0.118 R)
• M24: 31,013,583 km (0.046 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 410.7

Radius: 8.1

Gravity: 6.26 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 4.6 AU - 6.98 AU

Year: 9140 Days

Day: 11.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 55,065,291 km

• M1: 100,829 km (0.101 R)
• M2: 467,643 km (0.106 R)
• M3: 807,230 km (0.074 R)
• M4: 1,125,724 km (0.111 R)
• M5: 1,440,478 km (0.094 R)
• M6: 2,267,305 km (0.09 R)
• M7: 2,585,500 km (0.089 R)
• M8: 3,077,228 km (0.092 R)
• M9: 3,423,697 km (0.043 R)
• M10: 5,226,202 km (0.117 R)
• M11: 6,486,264 km (0.066 R)
• M12: 7,393,725 km (0.102 R)
• M13: 8,507,781 km (0.097 R)
• M14: 9,775,622 km (0.08 R)
• M15: 10,574,924 km (0.06 R)
• M16: 11,776,644 km (0.097 R)
• M17: 12,410,490 km (0.115 R)
• M18: 13,919,633 km (0.081 R)
• M19: 14,748,555 km (0.104 R)
• M20: 17,500,408 km (0.104 R)
• M21: 24,417,215 km (0.113 R)
• M22: 24,671,980 km (0.108 R)
• M23: 30,736,379 km (0.119 R)
• M24: 31,132,962 km (0.108 R)
• M25: 32,960,001 km (0.06 R)
• M26: 36,826,209 km (0.094 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 557

Radius: 7.5

Gravity: 9.9 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 6.04 AU - 9.32 AU

Year: 13962 Days

Day: 19.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 55,065,291 km

• M1: 93,947 km (0.119 R)
• M2: 334,950 km (0.115 R)
• M3: 647,759 km (0.094 R)
• M4: 893,847 km (0.03 R)
• M5: 1,279,211 km (0.107 R)
• M6: 1,525,599 km (0.104 R)
• M7: 1,887,476 km (0.088 R)
• M8: 2,506,064 km (0.097 R)
• M9: 3,799,786 km (0.068 R)
• M10: 5,453,590 km (0.112 R)
• M11: 7,893,382 km (0.085 R)
• M12: 11,035,985 km (0.116 R)
• M13: 11,494,203 km (0.116 R)
• M14: 13,519,908 km (0.094 R)
• M15: 15,916,465 km (0.095 R)
• M16: 19,149,126 km (0.108 R)
• M17: 22,428,910 km (0.076 R)
• M18: 23,257,233 km (0.098 R)
• M19: 23,726,222 km (0.11 R)
• M20: 24,489,471 km (0.115 R)
• M21: 26,775,176 km (0.09 R)
• M22: 28,446,783 km (0.109 R)
• M23: 30,969,602 km (0.092 R)
• M24: 32,227,420 km (0.11 R)
• M25: 32,576,283 km (0.1 R)
• M26: 41,039,782 km (0.096 R)
• M27: 44,252,546 km (0.114 R)
• M28: 45,846,811 km (0.1 R)
• M29: 47,329,026 km (0.108 R)
• M30: 54,890,152 km (0.07 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 434.5

Radius: 6.5

Gravity: 10.28 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 7.78 AU - 8.66 AU

Year: 15460 Days

Day: 19.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 55,065,291 km

• M1: 103,073 km (0.077 R)
• M2: 306,077 km (0.037 R)
• M3: 547,678 km (0.119 R)
• M4: 909,405 km (0.118 R)
• M5: 1,262,157 km (0.055 R)
• M6: 1,478,177 km (0.076 R)
• M7: 1,718,880 km (0.077 R)
• M8: 1,985,762 km (0.113 R)
• M9: 2,561,564 km (0.111 R)
• M10: 2,776,536 km (0.053 R)
• M11: 3,003,626 km (0.103 R)
• M12: 3,521,235 km (0.03 R)
• M13: 4,242,446 km (0.108 R)
• M14: 5,057,904 km (0.102 R)
• M15: 5,716,883 km (0.117 R)
• M16: 8,787,080 km (0.072 R)
• M17: 9,633,953 km (0.116 R)
• M18: 10,588,537 km (0.091 R)
• M19: 11,546,562 km (0.11 R)
• M20: 11,898,267 km (0.097 R)
• M21: 20,947,591 km (0.105 R)
• M22: 27,708,368 km (0.067 R)
• M23: 30,955,539 km (0.069 R)
• M24: 34,810,527 km (0.116 R)
• M25: 38,064,430 km (0.107 R)
• M26: 38,973,985 km (0.085 R)
• M27: 40,701,392 km (0.052 R)
• M28: 44,881,156 km (0.067 R)
• M29: 51,673,498 km (0.087 R)
• M30: 52,308,541 km (0.048 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 336 - 11,801 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit