🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.7

Radius: 8.3

Gravity: 6.89 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.53 AU - 0.73 AU

Year: 339 Days

Day: 9.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,346,359 km

• M1: 103,223 km (0.113 R)
• M2: 381,026 km (0.072 R)
• M3: 727,794 km (0.1 R)
• M4: 990,338 km (0.097 R)
• M5: 1,295,368 km (0.12 R)
• M6: 1,617,901 km (0.087 R)
• M7: 1,949,410 km (0.107 R)
• M8: 2,227,363 km (0.088 R)
• M9: 2,523,118 km (0.076 R)
• M10: 2,845,202 km (0.115 R)
• M11: 3,112,384 km (0.047 R)
• M12: 3,685,942 km (0.099 R)
• M13: 4,053,055 km (0.037 R)
• M14: 4,379,627 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 743.8

Radius: 13.6

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.88 AU - 1.16 AU

Year: 699 Days

Day: 8.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,346,359 km

• M1: 169,195 km (0.105 R)
• M2: 594,053 km (0.101 R)
• M3: 1,268,141 km (0.104 R)
• M4: 1,911,412 km (0.068 R)
• M5: 3,038,333 km (0.093 R)
• M6: 3,907,496 km (0.117 R)
• M7: 4,537,004 km (0.036 R)
• M8: 5,468,849 km (0.083 R)
• M9: 6,098,806 km (0.074 R)
• M10: 6,819,569 km (0.108 R)
• M11: 7,346,153 km (0.074 R)
• M12: 8,186,893 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491.1

Radius: 12.6

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.98 AU - 1.12 AU

Year: 730 Days

Day: 10.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,346,359 km

• M1: 156,779 km (0.071 R)
• M2: 727,794 km (0.067 R)
• M3: 1,363,734 km (0.116 R)
• M4: 1,921,734 km (0.092 R)
• M5: 3,610,844 km (0.107 R)
• M6: 4,025,978 km (0.077 R)
• M7: 4,488,684 km (0.076 R)
• M8: 4,903,968 km (0.117 R)
• M9: 6,268,450 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.7

Radius: 11.6

Gravity: 6.28 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.12 AU - 1.64 AU

Year: 1100 Days

Day: 12.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 49,346,359 km

• M1: 144,212 km (0.054 R)
• M2: 582,534 km (0.088 R)
• M3: 1,084,136 km (0.088 R)
• M4: 1,449,603 km (0.094 R)
• M5: 1,939,387 km (0.072 R)
• M6: 2,575,178 km (0.105 R)
• M7: 3,697,760 km (0.095 R)
• M8: 4,531,768 km (0.074 R)
• M9: 5,003,450 km (0.094 R)
• M10: 5,383,878 km (0.041 R)
• M11: 5,804,996 km (0.075 R)
• M12: 6,690,166 km (0.089 R)
• M13: 7,278,236 km (0.11 R)
• M14: 8,061,530 km (0.057 R)
• M15: 8,614,294 km (0.116 R)
• M16: 9,045,435 km (0.113 R)
• M17: 10,555,177 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 93.3

Radius: 14.4

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 2.06 AU - 2.88 AU

Year: 2633 Days

Day: 5.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 49,346,359 km

• M1: 181,163 km (0.089 R)
• M2: 1,104,182 km (0.071 R)
• M3: 1,898,846 km (0.116 R)
• M4: 3,893,584 km (0.037 R)
• M5: 4,883,622 km (0.063 R)
• M6: 5,807,988 km (0.113 R)
• M7: 6,443,031 km (0.065 R)
• M8: 9,011,477 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 284.8

Radius: 11.1

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 2.66 AU - 3.32 AU

Year: 3507 Days

Day: 9.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 49,346,359 km

• M1: 138,079 km (0.06 R)
• M2: 489,335 km (0.07 R)
• M3: 856,597 km (0.052 R)
• M4: 1,234,182 km (0.108 R)
• M5: 1,590,973 km (0.11 R)
• M6: 2,266,109 km (0.112 R)
• M7: 3,123,304 km (0.032 R)
• M8: 3,476,355 km (0.088 R)
• M9: 3,875,183 km (0.065 R)
• M10: 5,144,072 km (0.119 R)
• M11: 6,781,720 km (0.071 R)
• M12: 7,466,579 km (0.109 R)
• M13: 8,450,634 km (0.027 R)
• M14: 9,074,607 km (0.084 R)
• M15: 9,658,787 km (0.095 R)
• M16: 10,940,541 km (0.101 R)
• M17: 12,793,161 km (0.09 R)
• M18: 13,222,208 km (0.101 R)
• M19: 16,956,470 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 101.8

Radius: 13.8

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 3.74 AU - 5.92 AU

Year: 7200 Days

Day: 5.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,346,359 km

• M1: 194,328 km (0.11 R)
• M2: 634,893 km (0.108 R)
• M3: 1,802,056 km (0.077 R)
• M4: 3,976,311 km (0.107 R)
• M5: 4,852,805 km (0.107 R)
• M6: 7,049,052 km (0.086 R)
• M7: 9,261,155 km (0.12 R)
• M8: 10,180,584 km (0.101 R)
• M9: 11,079,218 km (0.088 R)
• M10: 13,079,791 km (0.084 R)
• M11: 15,211,411 km (0.102 R)
• M12: 16,702,303 km (0.119 R)
• M13: 18,288,639 km (0.1 R)
• M14: 20,153,376 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 282.1

Radius: 4.1

Gravity: 16.78 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 7.16 AU - 9.48 AU

Year: 16277 Days

Day: 24.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 49,346,359 km

• M1: 52,658 km (0.118 R)
• M2: 189,241 km (0.072 R)
• M3: 394,490 km (0.081 R)
• M4: 540,946 km (0.117 R)
• M5: 1,042,996 km (0.076 R)
• M6: 1,290,880 km (0.095 R)
• M7: 1,774,680 km (0.066 R)
• M8: 2,182,633 km (0.107 R)
• M9: 3,112,234 km (0.109 R)
• M10: 3,677,116 km (0.103 R)
• M11: 4,278,798 km (0.087 R)
• M12: 7,987,030 km (0.06 R)
• M13: 10,645,684 km (0.098 R)
• M14: 14,810,937 km (0.109 R)
• M15: 15,482,781 km (0.061 R)
• M16: 17,694,287 km (0.101 R)
• M17: 18,373,760 km (0.031 R)
• M18: 19,148,976 km (0.119 R)
• M19: 22,120,439 km (0.074 R)
• M20: 23,264,713 km (0.102 R)
• M21: 23,444,230 km (0.116 R)
• M22: 27,330,484 km (0.097 R)
• M23: 27,831,936 km (0.092 R)
• M24: 28,544,171 km (0.099 R)
• M25: 32,400,356 km (0.078 R)
• M26: 33,075,042 km (0.095 R)
• M27: 33,529,969 km (0.089 R)
• M28: 35,037,467 km (0.06 R)
• M29: 36,227,368 km (0.059 R)
• M30: 42,583,034 km (0.11 R)
• M31: 43,121,437 km (0.116 R)
• M32: 43,392,358 km (0.082 R)
• M33: 45,600,423 km (0.043 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 268 - 19,988 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit