🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 646.4

Radius: 8.8

Gravity: 8.35 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.56 AU - 0.82 AU

Year: 376 Days

Day: 11.4 Hours

Environment

Temp: -132 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 65,889,201 km

• M1: 109,506 km (0.089 R)
• M2: 399,726 km (0.067 R)
• M3: 728,542 km (0.084 R)
• M4: 1,091,765 km (0.105 R)
• M5: 1,495,979 km (0.086 R)
• M6: 1,943,276 km (0.102 R)
• M7: 2,263,266 km (0.098 R)
• M8: 2,937,653 km (0.09 R)
• M9: 3,361,763 km (0.112 R)
• M10: 4,199,063 km (0.11 R)
• M11: 4,497,810 km (0.107 R)
• M12: 4,781,746 km (0.057 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 364.5

Radius: 10.2

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.67 AU - 1.03 AU

Year: 514 Days

Day: 10 Hours

Environment

Temp: -149 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 65,889,201 km

• M1: 127,607 km (0.097 R)
• M2: 617,540 km (0.114 R)
• M3: 952,490 km (0.095 R)
• M4: 1,648,120 km (0.096 R)
• M5: 2,234,394 km (0.057 R)
• M6: 2,811,542 km (0.119 R)
• M7: 3,201,394 km (0.099 R)
• M8: 3,579,578 km (0.06 R)
• M9: 3,923,803 km (0.079 R)
• M10: 4,371,699 km (0.09 R)
• M11: 4,971,736 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 925.7

Radius: 9.4

Gravity: 10.48 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.8 AU - 1 AU

Year: 560 Days

Day: 9.6 Hours

Environment

Temp: -144 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 65,889,201 km

• M1: 117,285 km (0.052 R)
• M2: 441,763 km (0.102 R)
• M3: 999,463 km (0.088 R)
• M4: 1,416,093 km (0.114 R)
• M5: 2,446,075 km (0.12 R)
• M6: 2,749,010 km (0.119 R)
• M7: 3,729,026 km (0.117 R)
• M8: 6,047,494 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 440.4

Radius: 14.3

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.22 AU - 1.8 AU

Year: 1217 Days

Day: 10.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 65,889,201 km

• M1: 178,021 km (0.114 R)
• M2: 821,592 km (0.09 R)
• M3: 1,581,549 km (0.116 R)
• M4: 2,366,638 km (0.103 R)
• M5: 3,009,012 km (0.108 R)
• M6: 3,796,345 km (0.098 R)
• M7: 5,366,225 km (0.095 R)
• M8: 5,968,955 km (0.12 R)
• M9: 7,027,510 km (0.112 R)
• M10: 9,065,631 km (0.092 R)
• M11: 10,011,987 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.6

Radius: 9.2

Gravity: 8.96 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 2.2 AU - 2.54 AU

Year: 2393 Days

Day: 7.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 65,889,201 km

• M1: 114,442 km (0.071 R)
• M2: 1,224,459 km (0.106 R)
• M3: 1,512,285 km (0.054 R)
• M4: 1,976,188 km (0.046 R)
• M5: 2,363,796 km (0.111 R)
• M6: 2,771,001 km (0.069 R)
• M7: 3,469,623 km (0.113 R)
• M8: 4,037,048 km (0.119 R)
• M9: 4,621,527 km (0.11 R)
• M10: 5,381,484 km (0.098 R)
• M11: 6,329,935 km (0.107 R)
• M12: 6,632,422 km (0.109 R)
• M13: 7,476,602 km (0.097 R)
• M14: 8,099,229 km (0.042 R)
• M15: 8,390,645 km (0.049 R)
• M16: 8,960,015 km (0.091 R)
• M17: 9,342,088 km (0.106 R)
• M18: 10,138,696 km (0.116 R)
• M19: 11,991,765 km (0.103 R)
• M20: 13,152,944 km (0.104 R)
• M21: 13,738,021 km (0.048 R)
• M22: 14,434,549 km (0.097 R)
• M23: 14,911,766 km (0.067 R)
• M24: 17,565,483 km (0.068 R)
• M25: 17,945,162 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.2

Radius: 12.8

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 2.49 AU - 2.69 AU

Year: 2734 Days

Day: 9.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 65,889,201 km

• M1: 159,621 km (0.108 R)
• M2: 584,628 km (0.095 R)
• M3: 1,036,264 km (0.062 R)
• M4: 1,443,171 km (0.084 R)
• M5: 1,897,799 km (0.117 R)
• M6: 2,448,618 km (0.059 R)
• M7: 3,594,986 km (0.075 R)
• M8: 4,243,942 km (0.098 R)
• M9: 5,153,796 km (0.093 R)
• M10: 5,622,337 km (0.114 R)
• M11: 6,189,462 km (0.094 R)
• M12: 8,151,438 km (0.116 R)
• M13: 10,265,406 km (0.097 R)
• M14: 10,803,809 km (0.032 R)
• M15: 11,646,493 km (0.109 R)
• M16: 12,121,018 km (0.103 R)
• M17: 12,953,530 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 521.6

Radius: 12.4

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 3.08 AU - 3.38 AU

Year: 3808 Days

Day: 9.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 65,889,201 km

• M1: 154,385 km (0.11 R)
• M2: 758,760 km (0.112 R)
• M3: 1,957,638 km (0.055 R)
• M4: 2,696,202 km (0.056 R)
• M5: 3,131,083 km (0.097 R)
• M6: 3,791,109 km (0.107 R)
• M7: 4,208,786 km (0.109 R)
• M8: 4,703,806 km (0.105 R)
• M9: 5,288,135 km (0.116 R)
• M10: 5,704,167 km (0.068 R)
• M11: 7,179,202 km (0.03 R)
• M12: 7,658,065 km (0.119 R)
• M13: 8,295,202 km (0.079 R)
• M14: 12,841,032 km (0.074 R)
• M15: 14,431,108 km (0.098 R)
• M16: 14,835,621 km (0.109 R)
• M17: 16,861,625 km (0.093 R)
• M18: 19,005,661 km (0.042 R)
• M19: 20,489,972 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 490.2

Radius: 11.9

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 3.42 AU - 3.78 AU

Year: 4481 Days

Day: 8.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,889,201 km

• M1: 148,551 km (0.071 R)
• M2: 707,748 km (0.034 R)
• M3: 1,686,118 km (0.107 R)
• M4: 2,288,548 km (0.106 R)
• M5: 5,592,866 km (0.105 R)
• M6: 6,211,902 km (0.082 R)
• M7: 6,782,917 km (0.065 R)
• M8: 10,846,294 km (0.081 R)
• M9: 11,277,585 km (0.079 R)
• M10: 12,174,724 km (0.033 R)
• M11: 14,993,297 km (0.067 R)
• M12: 16,469,529 km (0.115 R)
• M13: 17,097,989 km (0.07 R)
• M14: 17,801,698 km (0.026 R)
• M15: 18,402,782 km (0.105 R)
• M16: 19,267,009 km (0.095 R)
• M17: 22,505,952 km (0.098 R)
• M18: 25,030,716 km (0.116 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 496.6

Radius: 14.2

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 3.62 AU - 5 AU

Year: 5870 Days

Day: 6.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 65,889,201 km

• M1: 176,675 km (0.087 R)
• M2: 634,295 km (0.11 R)
• M3: 1,114,654 km (0.065 R)
• M4: 1,797,418 km (0.066 R)
• M5: 2,275,384 km (0.042 R)
• M6: 3,078,724 km (0.065 R)
• M7: 4,347,763 km (0.076 R)
• M8: 5,115,350 km (0.107 R)
• M9: 5,941,579 km (0.095 R)
• M10: 6,594,274 km (0.089 R)
• M11: 7,398,363 km (0.103 R)
• M12: 8,494,616 km (0.107 R)
• M13: 12,239,200 km (0.04 R)
• M14: 13,665,017 km (0.119 R)
• M15: 14,363,490 km (0.114 R)
• M16: 16,362,865 km (0.049 R)
• M17: 16,905,756 km (0.112 R)
• M18: 17,522,997 km (0.119 R)
• M19: 18,671,909 km (0.082 R)
• M20: 21,476,121 km (0.096 R)
• M21: 23,928,628 km (0.095 R)
• M22: 24,628,597 km (0.104 R)
• M23: 26,479,870 km (0.06 R)
• M24: 29,472,725 km (0.104 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 976.1

Radius: 8

Gravity: 15.25 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 6.41 AU - 8.61 AU

Year: 13501 Days

Day: 22.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 133.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 65,889,201 km

• M1: 137,181 km (0.079 R)
• M2: 572,511 km (0.095 R)
• M3: 1,102,985 km (0.086 R)
• M4: 1,858,155 km (0.1 R)
• M5: 3,513,605 km (0.096 R)
• M6: 5,008,686 km (0.104 R)
• M7: 8,030,713 km (0.06 R)
• M8: 8,372,694 km (0.089 R)
• M9: 10,808,147 km (0.074 R)
• M10: 13,474,430 km (0.067 R)
• M11: 13,957,781 km (0.087 R)
• M12: 14,381,292 km (0.093 R)
• M13: 14,959,189 km (0.118 R)
• M14: 18,083,690 km (0.104 R)
• M15: 21,995,076 km (0.088 R)
• M16: 37,445,843 km (0.082 R)
• M17: 45,086,405 km (0.109 R)
• M18: 46,011,817 km (0.115 R)
• M19: 51,329,124 km (0.035 R)
• M20: 52,847,393 km (0.103 R)
• M21: 63,549,026 km (0.12 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 380 - 14,998 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit