🌌 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 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400.3

Radius: 11.5

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.39 AU - 0.63 AU

Year: 251 Days

Day: 7.8 Hours

Environment

Temp: -136 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 54,981,763 km

• M1: 143,016 km (0.112 R)
• M2: 509,830 km (0.101 R)
• M3: 905,965 km (0.107 R)
• M4: 1,388,717 km (0.103 R)
• M5: 2,096,614 km (0.108 R)
• M6: 2,545,857 km (0.117 R)
• M7: 3,004,823 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 176.8

Radius: 14.1

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.43 AU - 0.61 AU

Year: 259 Days

Day: 12.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 54,981,763 km

• M1: 175,478 km (0.066 R)
• M2: 652,097 km (0.072 R)
• M3: 1,102,686 km (0.059 R)
• M4: 1,551,031 km (0.113 R)
• M5: 2,006,407 km (0.046 R)
• M6: 2,633,222 km (0.031 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 654.8

Radius: 13

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.73 AU - 0.77 AU

Year: 448 Days

Day: 5.6 Hours

Environment

Temp: -154 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,981,763 km

• M1: 161,715 km (0.043 R)
• M2: 638,933 km (0.057 R)
• M3: 1,413,849 km (0.08 R)
• M4: 2,091,079 km (0.045 R)
• M5: 2,501,426 km (0.038 R)
• M6: 2,976,848 km (0.107 R)
• M7: 3,393,329 km (0.106 R)
• M8: 4,166,450 km (0.071 R)
• M9: 4,573,805 km (0.03 R)
• M10: 5,116,546 km (0.08 R)
• M11: 5,752,786 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 361.7

Radius: 10

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.62 AU - 0.98 AU

Year: 494 Days

Day: 7 Hours

Environment

Temp: -160 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 54,981,763 km

• M1: 125,363 km (0.113 R)
• M2: 442,959 km (0.077 R)
• M3: 836,102 km (0.09 R)
• M4: 1,349,522 km (0.059 R)
• M5: 2,179,043 km (0.073 R)
• M6: 2,494,096 km (0.05 R)
• M7: 3,217,850 km (0.111 R)
• M8: 4,379,926 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.6

Radius: 14.4

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 2.67 AU - 3.43 AU

Year: 3677 Days

Day: 10.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 151.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 54,981,763 km

• M1: 179,069 km (0.1 R)
• M2: 684,709 km (0.093 R)
• M3: 1,178,233 km (0.093 R)
• M4: 1,776,325 km (0.096 R)
• M5: 2,267,904 km (0.095 R)
• M6: 3,294,594 km (0.098 R)
• M7: 3,952,675 km (0.061 R)
• M8: 4,466,544 km (0.1 R)
• M9: 6,154,157 km (0.069 R)
• M10: 7,271,952 km (0.085 R)
• M11: 7,743,335 km (0.109 R)
• M12: 8,266,629 km (0.076 R)
• M13: 9,146,264 km (0.117 R)
• M14: 10,159,939 km (0.095 R)
• M15: 11,403,098 km (0.102 R)
• M16: 13,608,619 km (0.096 R)
• M17: 14,882,595 km (0.072 R)
• M18: 16,284,327 km (0.115 R)
• M19: 17,405,114 km (0.065 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 426.7

Radius: 10.7

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 4.22 AU - 6.42 AU

Year: 8470 Days

Day: 13.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 54,981,763 km

• M1: 133,142 km (0.053 R)
• M2: 565,779 km (0.107 R)
• M3: 1,014,423 km (0.077 R)
• M4: 1,363,435 km (0.106 R)
• M5: 2,089,583 km (0.092 R)
• M6: 2,819,022 km (0.099 R)
• M7: 3,438,208 km (0.076 R)
• M8: 3,851,846 km (0.046 R)
• M9: 4,402,516 km (0.094 R)
• M10: 4,863,576 km (0.08 R)
• M11: 5,386,571 km (0.089 R)
• M12: 7,747,075 km (0.089 R)
• M13: 8,709,438 km (0.106 R)
• M14: 9,659,983 km (0.108 R)
• M15: 10,726,167 km (0.089 R)
• M16: 13,535,615 km (0.105 R)
• M17: 14,809,441 km (0.052 R)
• M18: 15,475,601 km (0.096 R)
• M19: 16,672,982 km (0.111 R)
• M20: 19,754,100 km (0.06 R)
• M21: 20,191,673 km (0.077 R)
• M22: 20,561,330 km (0.071 R)
• M23: 26,929,113 km (0.101 R)
• M24: 31,636,658 km (0.103 R)
• M25: 32,843,165 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 741.8

Radius: 11.1

Gravity: 6.02 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 4.21 AU - 6.51 AU

Year: 8566 Days

Day: 7.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 54,981,763 km

• M1: 138,079 km (0.082 R)
• M2: 609,312 km (0.104 R)
• M3: 980,464 km (0.118 R)
• M4: 1,547,889 km (0.028 R)
• M5: 2,003,265 km (0.065 R)
• M6: 2,528,354 km (0.047 R)
• M7: 3,535,446 km (0.105 R)
• M8: 8,162,808 km (0.118 R)
• M9: 9,320,247 km (0.072 R)
• M10: 10,134,358 km (0.112 R)
• M11: 14,550,936 km (0.094 R)
• M12: 16,725,940 km (0.051 R)
• M13: 18,218,029 km (0.046 R)
• M14: 26,557,362 km (0.06 R)
• M15: 31,023,606 km (0.058 R)
• M16: 38,323,384 km (0.066 R)
• M17: 42,562,539 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 452

Radius: 3.7

Gravity: 33.02 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 5.92 AU - 9.74 AU

Year: 15124 Days

Day: 15.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 54,981,763 km

• M1: 53,706 km (0.099 R)
• M2: 275,260 km (0.12 R)
• M3: 1,200,972 km (0.114 R)
• M4: 1,635,554 km (0.104 R)
• M5: 2,341,356 km (0.089 R)
• M6: 3,722,444 km (0.109 R)
• M7: 3,887,899 km (0.109 R)
• M8: 4,413,736 km (0.046 R)
• M9: 4,630,652 km (0.066 R)
• M10: 5,569,529 km (0.098 R)
• M11: 8,178,516 km (0.088 R)
• M12: 8,364,316 km (0.111 R)
• M13: 9,797,314 km (0.053 R)
• M14: 10,112,966 km (0.033 R)
• M15: 12,515,358 km (0.115 R)
• M16: 15,063,159 km (0.1 R)
• M17: 15,202,435 km (0.116 R)
• M18: 15,625,498 km (0.102 R)
• M19: 21,329,216 km (0.105 R)
• M20: 22,307,286 km (0.114 R)
• M21: 25,420,269 km (0.091 R)
• M22: 27,545,007 km (0.11 R)
• M23: 42,130,201 km (0.099 R)
• M24: 49,720,648 km (0.118 R)
• M25: 50,029,418 km (0.114 R)
• M26: 53,350,041 km (0.104 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 490 - 12,439 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit