🌌 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 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.92

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.45 AU - 0.67 AU

Year: 275 Days

Day: 36.8 Hours

Environment

Temp: -119 °C

Axial Tilt: 39.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 667.5

Radius: 8.8

Gravity: 8.62 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.64 AU - 0.98 AU

Year: 478 Days

Day: 6.1 Hours

Environment

Temp: -142 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,564,102 km

• M1: 109,506 km (0.116 R)
• M2: 539,600 km (0.071 R)
• M3: 1,046,138 km (0.096 R)
• M4: 1,438,234 km (0.076 R)
• M5: 1,767,798 km (0.044 R)
• M6: 2,147,926 km (0.085 R)
• M7: 2,492,749 km (0.049 R)
• M8: 3,716,609 km (0.098 R)
• M9: 4,174,229 km (0.088 R)
• M10: 4,534,461 km (0.03 R)
• M11: 5,235,177 km (0.114 R)
• M12: 5,988,403 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.1

Radius: 10

Gravity: 5.73 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.18 AU - 1.38 AU

Year: 950 Days

Day: 5.4 Hours

Environment

Temp: -167 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,564,102 km

• M1: 124,316 km (0.104 R)
• M2: 473,178 km (0.105 R)
• M3: 841,787 km (0.032 R)
• M4: 1,659,788 km (0.104 R)
• M5: 2,030,193 km (0.104 R)
• M6: 2,568,296 km (0.095 R)
• M7: 2,890,380 km (0.116 R)
• M8: 3,689,831 km (0.115 R)
• M9: 4,613,150 km (0.089 R)
• M10: 5,863,339 km (0.059 R)
• M11: 7,612,288 km (0.078 R)
• M12: 9,019,405 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 462.3

Radius: 10.5

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 3.71 AU - 4.97 AU

Year: 5931 Days

Day: 8.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 67,564,102 km

• M1: 145,708 km (0.096 R)
• M2: 626,366 km (0.061 R)
• M3: 1,028,037 km (0.084 R)
• M4: 2,969,518 km (0.093 R)
• M5: 3,439,554 km (0.101 R)
• M6: 4,357,936 km (0.118 R)
• M7: 6,107,483 km (0.07 R)
• M8: 6,804,908 km (0.102 R)
• M9: 7,986,432 km (0.087 R)
• M10: 8,434,478 km (0.116 R)
• M11: 12,105,011 km (0.026 R)
• M12: 12,696,970 km (0.089 R)
• M13: 13,938,931 km (0.07 R)
• M14: 14,589,532 km (0.099 R)
• M15: 22,033,672 km (0.111 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 901.1

Radius: 5.2

Gravity: 33.32 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 5.93 AU - 7.21 AU

Year: 11047 Days

Day: 22.4 Hours

Environment

Temp: -216 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 67,564,102 km

• M1: 64,626 km (0.079 R)
• M2: 408,253 km (0.115 R)
• M3: 629,657 km (0.061 R)
• M4: 1,230,592 km (0.107 R)
• M5: 1,403,826 km (0.112 R)
• M6: 1,751,043 km (0.107 R)
• M7: 2,287,651 km (0.103 R)
• M8: 2,904,293 km (0.113 R)
• M9: 3,441,649 km (0.109 R)
• M10: 3,706,736 km (0.049 R)
• M11: 3,872,191 km (0.119 R)
• M12: 6,035,077 km (0.09 R)
• M13: 7,414,070 km (0.108 R)
• M14: 8,794,560 km (0.111 R)
• M15: 11,993,261 km (0.115 R)
• M16: 12,173,976 km (0.103 R)
• M17: 12,664,806 km (0.085 R)
• M18: 12,915,083 km (0.046 R)
• M19: 13,555,362 km (0.058 R)
• M20: 14,082,695 km (0.055 R)
• M21: 14,555,125 km (0.098 R)
• M22: 16,402,958 km (0.068 R)
• M23: 22,143,626 km (0.112 R)
• M24: 22,690,257 km (0.066 R)
• M25: 27,287,400 km (0.115 R)
• M26: 30,190,346 km (0.029 R)
• M27: 32,820,127 km (0.045 R)
• M28: 33,769,475 km (0.115 R)
• M29: 36,097,368 km (0.046 R)
• M30: 43,011,183 km (0.083 R)
• M31: 43,576,962 km (0.065 R)
• M32: 45,449,778 km (0.091 R)
• M33: 54,296,547 km (0.073 R)

Asteroid Belt

Center: 8.57 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 10.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 863.3

Radius: 7

Gravity: 17.62 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 8.48 AU - 12.64 AU

Year: 22512 Days

Day: 15.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 67,564,102 km

• M1: 87,664 km (0.11 R)
• M2: 392,994 km (0.066 R)
• M3: 686,804 km (0.081 R)
• M4: 1,033,123 km (0.079 R)
• M5: 1,409,661 km (0.103 R)
• M6: 1,855,313 km (0.085 R)
• M7: 2,391,172 km (0.103 R)
• M8: 2,944,086 km (0.116 R)
• M9: 3,338,276 km (0.082 R)
• M10: 5,902,085 km (0.074 R)
• M11: 9,311,271 km (0.111 R)
• M12: 9,729,546 km (0.069 R)
• M13: 10,668,123 km (0.11 R)
• M14: 12,796,901 km (0.093 R)
• M15: 13,999,369 km (0.095 R)
• M16: 18,149,064 km (0.045 R)
• M17: 20,955,520 km (0.113 R)
• M18: 24,486,179 km (0.117 R)
• M19: 24,939,461 km (0.108 R)
• M20: 25,979,615 km (0.089 R)
• M21: 26,569,928 km (0.11 R)
• M22: 29,400,619 km (0.11 R)
• M23: 36,972,216 km (0.041 R)
• M24: 40,490,160 km (0.078 R)
• M25: 41,443,248 km (0.041 R)
• M26: 41,764,285 km (0.039 R)
• M27: 43,229,297 km (0.095 R)
• M28: 45,746,730 km (0.032 R)
• M29: 50,156,875 km (0.046 R)
• M30: 60,839,360 km (0.097 R)
• M31: 61,462,136 km (0.028 R)
• M32: 68,148,113 km (0.097 R)
• M33: 86,032,838 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 368

Radius: 5.9

Gravity: 10.57 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 10.45 AU - 10.87 AU

Year: 22832 Days

Day: 21.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 67,564,102 km

• M1: 73,303 km (0.117 R)
• M2: 262,544 km (0.057 R)
• M3: 646,412 km (0.071 R)
• M4: 916,137 km (0.118 R)
• M5: 1,603,091 km (0.084 R)
• M6: 2,917,757 km (0.08 R)
• M7: 3,248,518 km (0.107 R)
• M8: 3,436,861 km (0.115 R)
• M9: 5,980,773 km (0.086 R)
• M10: 7,630,987 km (0.081 R)
• M11: 8,259,149 km (0.097 R)
• M12: 8,560,439 km (0.066 R)
• M13: 9,617,946 km (0.109 R)
• M14: 10,408,272 km (0.077 R)
• M15: 11,058,873 km (0.116 R)
• M16: 14,506,057 km (0.074 R)
• M17: 14,797,623 km (0.086 R)
• M18: 21,107,960 km (0.114 R)
• M19: 22,148,414 km (0.087 R)
• M20: 23,222,676 km (0.106 R)
• M21: 28,092,835 km (0.063 R)
• M22: 28,774,402 km (0.062 R)
• M23: 29,466,891 km (0.092 R)
• M24: 34,112,952 km (0.056 R)
• M25: 36,207,023 km (0.108 R)
• M26: 37,558,490 km (0.103 R)
• M27: 45,909,791 km (0.092 R)
• M28: 47,812,826 km (0.038 R)
• M29: 49,274,098 km (0.064 R)
• M30: 51,437,133 km (0.067 R)
• M31: 62,435,569 km (0.108 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: 189 - 13,888 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit