🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.37

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.44 AU - 0.58 AU

Year: 235 Days

Day: 15.9 Hours

Environment

Temp: -127 °C

Axial Tilt: 47.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 85,664,136 km

• M1: 37,998 km (0.099 R)
• M2: 81,531 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 982.6

Radius: 10.5

Gravity: 8.91 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.75 AU - 1.07 AU

Year: 561 Days

Day: 14.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 85,664,136 km

• M1: 131,347 km (0.071 R)
• M2: 461,659 km (0.098 R)
• M3: 798,404 km (0.107 R)
• M4: 1,426,117 km (0.084 R)
• M5: 1,762,562 km (0.115 R)
• M6: 2,318,767 km (0.109 R)
• M7: 2,882,302 km (0.117 R)
• M8: 3,389,439 km (0.099 R)
• M9: 4,534,910 km (0.119 R)
• M10: 5,205,408 km (0.101 R)
• M11: 6,373,767 km (0.073 R)
• M12: 7,062,964 km (0.116 R)
• M13: 7,663,151 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88.7

Radius: 9

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.05 AU - 1.53 AU

Year: 946 Days

Day: 13.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 85,664,136 km

• M1: 111,899 km (0.094 R)
• M2: 426,952 km (0.083 R)
• M3: 1,009,337 km (0.115 R)
• M4: 1,764,507 km (0.108 R)
• M5: 3,019,334 km (0.106 R)
• M6: 4,773,668 km (0.079 R)

Asteroid Belt

Center: 2.62 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.5

Radius: 14.6

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 3.12 AU - 4.78 AU

Year: 5069 Days

Day: 14.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 85,664,136 km

• M1: 181,612 km (0.063 R)
• M2: 760,107 km (0.074 R)
• M3: 1,253,630 km (0.045 R)
• M4: 1,982,621 km (0.11 R)
• M5: 2,446,673 km (0.114 R)
• M6: 3,038,632 km (0.054 R)
• M7: 3,875,034 km (0.108 R)
• M8: 5,606,330 km (0.065 R)
• M9: 6,613,722 km (0.084 R)
• M10: 7,531,355 km (0.107 R)
• M11: 8,495,065 km (0.082 R)
• M12: 8,987,690 km (0.031 R)
• M13: 10,452,553 km (0.045 R)
• M14: 11,698,105 km (0.068 R)
• M15: 13,748,942 km (0.068 R)
• M16: 15,577,177 km (0.054 R)
• M17: 16,962,005 km (0.118 R)
• M18: 18,177,488 km (0.072 R)
• M19: 23,110,627 km (0.112 R)
• M20: 23,700,342 km (0.08 R)
• M21: 24,833,247 km (0.116 R)
• M22: 26,640,239 km (0.11 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 969

Radius: 4.4

Gravity: 50.05 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 6.39 AU - 8.53 AU

Year: 13156 Days

Day: 15.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 85,664,136 km

• M1: 81,980 km (0.065 R)
• M2: 259,702 km (0.091 R)
• M3: 412,591 km (0.103 R)
• M4: 1,580,651 km (0.111 R)
• M5: 1,832,574 km (0.102 R)
• M6: 2,110,976 km (0.119 R)
• M7: 2,438,296 km (0.049 R)
• M8: 3,091,440 km (0.109 R)
• M9: 4,837,098 km (0.061 R)
• M10: 10,794,085 km (0.04 R)
• M11: 11,451,418 km (0.051 R)
• M12: 14,706,219 km (0.038 R)
• M13: 22,385,526 km (0.102 R)
• M14: 24,450,126 km (0.092 R)
• M15: 26,105,726 km (0.04 R)
• M16: 30,217,872 km (0.066 R)
• M17: 33,602,225 km (0.067 R)
• M18: 34,486,199 km (0.081 R)
• M19: 35,645,133 km (0.113 R)
• M20: 39,277,819 km (0.109 R)
• M21: 43,744,063 km (0.111 R)
• M22: 48,857,767 km (0.084 R)
• M23: 49,828,508 km (0.046 R)
• M24: 58,060,878 km (0.038 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 69.6

Radius: 4

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 7.34 AU - 8.46 AU

Year: 14337 Days

Day: 20.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 85,664,136 km

• M1: 52,658 km (0.047 R)
• M2: 226,641 km (0.09 R)
• M3: 413,489 km (0.119 R)
• M4: 572,062 km (0.075 R)
• M5: 1,363,285 km (0.04 R)
• M6: 1,746,705 km (0.089 R)
• M7: 2,213,749 km (0.106 R)
• M8: 2,922,544 km (0.112 R)
• M9: 4,064,574 km (0.077 R)
• M10: 7,774,302 km (0.11 R)
• M11: 7,954,568 km (0.103 R)
• M12: 11,230,312 km (0.083 R)
• M13: 11,741,189 km (0.079 R)
• M14: 13,470,091 km (0.054 R)
• M15: 15,361,457 km (0.082 R)
• M16: 16,048,710 km (0.105 R)
• M17: 19,528,207 km (0.091 R)
• M18: 20,539,040 km (0.076 R)
• M19: 21,092,103 km (0.071 R)
• M20: 28,015,044 km (0.082 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 836.2

Radius: 6.5

Gravity: 19.79 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 9.51 AU - 11.27 AU

Year: 21624 Days

Day: 21.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 85,664,136 km

• M1: 81,082 km (0.061 R)
• M2: 347,217 km (0.096 R)
• M3: 807,380 km (0.073 R)
• M4: 1,402,031 km (0.083 R)
• M5: 1,655,600 km (0.069 R)
• M6: 2,000,124 km (0.043 R)
• M7: 2,438,146 km (0.103 R)
• M8: 3,100,865 km (0.093 R)
• M9: 3,877,427 km (0.117 R)
• M10: 4,522,194 km (0.075 R)
• M11: 6,885,242 km (0.068 R)
• M12: 9,137,588 km (0.065 R)
• M13: 10,972,405 km (0.035 R)
• M14: 15,030,248 km (0.09 R)
• M15: 15,847,052 km (0.045 R)
• M16: 16,952,431 km (0.111 R)
• M17: 19,411,221 km (0.043 R)
• M18: 21,075,647 km (0.033 R)
• M19: 21,787,883 km (0.101 R)
• M20: 22,621,292 km (0.104 R)
• M21: 26,872,415 km (0.107 R)
• M22: 28,440,949 km (0.106 R)
• M23: 31,495,139 km (0.119 R)
• M24: 32,829,851 km (0.078 R)
• M25: 33,511,269 km (0.081 R)
• M26: 36,475,850 km (0.111 R)
• M27: 40,072,931 km (0.105 R)
• M28: 40,850,990 km (0.1 R)
• M29: 43,571,726 km (0.115 R)
• M30: 44,228,910 km (0.115 R)
• M31: 56,437,741 km (0.109 R)
• M32: 70,712,221 km (0.081 R)
• M33: 71,391,993 km (0.112 R)
• M34: 71,619,681 km (0.088 R)
• M35: 81,373,163 km (0.061 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 173 - 20,146 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit