🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.2

Radius: 12.1

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.62 AU - 0.98 AU

Year: 503 Days

Day: 12.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 41,232,972 km

• M1: 150,495 km (0.045 R)
• M2: 565,031 km (0.064 R)
• M3: 997,668 km (0.034 R)
• M4: 1,489,546 km (0.112 R)
• M5: 2,175,003 km (0.116 R)
• M6: 2,867,193 km (0.087 R)
• M7: 4,059,937 km (0.043 R)
• M8: 4,776,062 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 510.5

Radius: 12.5

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.8 AU - 1.22 AU

Year: 713 Days

Day: 14.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,232,972 km

• M1: 155,432 km (0.049 R)
• M2: 573,259 km (0.08 R)
• M3: 1,454,839 km (0.042 R)
• M4: 2,065,498 km (0.083 R)
• M5: 2,518,630 km (0.117 R)
• M6: 3,003,177 km (0.061 R)
• M7: 3,497,449 km (0.05 R)
• M8: 4,556,602 km (0.097 R)
• M9: 5,298,757 km (0.097 R)
• M10: 6,372,570 km (0.095 R)
• M11: 6,919,650 km (0.085 R)
• M12: 7,344,956 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 87.8

Radius: 10.7

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.93 AU - 1.31 AU

Year: 833 Days

Day: 10.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 41,232,972 km

• M1: 133,441 km (0.11 R)
• M2: 530,324 km (0.037 R)
• M3: 1,385,426 km (0.058 R)
• M4: 2,767,860 km (0.104 R)
• M5: 3,971,674 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467.2

Radius: 10

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 1.42 AU - 2.16 AU

Year: 1683 Days

Day: 6.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 41,232,972 km

• M1: 124,316 km (0.077 R)
• M2: 670,498 km (0.082 R)
• M3: 1,002,306 km (0.088 R)
• M4: 1,669,512 km (0.109 R)
• M5: 3,145,744 km (0.118 R)
• M6: 3,606,805 km (0.115 R)
• M7: 4,899,031 km (0.095 R)
• M8: 5,498,769 km (0.115 R)
• M9: 6,008,449 km (0.116 R)
• M10: 6,381,546 km (0.108 R)
• M11: 7,251,607 km (0.12 R)
• M12: 7,892,784 km (0.029 R)
• M13: 9,226,748 km (0.086 R)
• M14: 11,012,198 km (0.058 R)
• M15: 11,395,169 km (0.084 R)
• M16: 11,859,371 km (0.043 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 459.3

Radius: 9.5

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 2.01 AU - 2.27 AU

Year: 2201 Days

Day: 10.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 41,232,972 km

• M1: 125,662 km (0.108 R)
• M2: 565,779 km (0.104 R)
• M3: 1,202,617 km (0.085 R)
• M4: 1,585,438 km (0.108 R)
• M5: 2,154,658 km (0.115 R)
• M6: 2,712,060 km (0.093 R)
• M7: 3,063,465 km (0.07 R)
• M8: 3,395,572 km (0.095 R)
• M9: 3,804,872 km (0.106 R)
• M10: 4,208,786 km (0.116 R)
• M11: 4,868,214 km (0.106 R)
• M12: 6,805,357 km (0.111 R)
• M13: 7,208,523 km (0.117 R)
• M14: 7,656,269 km (0.115 R)
• M15: 8,514,961 km (0.107 R)
• M16: 9,802,999 km (0.106 R)
• M17: 11,179,598 km (0.032 R)
• M18: 14,443,076 km (0.046 R)
• M19: 14,930,466 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 299.8

Radius: 13.1

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 2.84 AU - 3.36 AU

Year: 3837 Days

Day: 9.1 Hours

Environment

Temp: -204 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 41,232,972 km

• M1: 163,062 km (0.114 R)
• M2: 692,937 km (0.082 R)
• M3: 1,409,960 km (0.094 R)
• M4: 2,078,513 km (0.091 R)
• M5: 2,602,105 km (0.054 R)
• M6: 3,315,538 km (0.118 R)
• M7: 4,095,840 km (0.091 R)
• M8: 4,508,730 km (0.11 R)
• M9: 5,041,299 km (0.105 R)
• M10: 5,791,083 km (0.119 R)
• M11: 6,421,788 km (0.098 R)
• M12: 7,126,992 km (0.048 R)
• M13: 8,793,363 km (0.112 R)
• M14: 9,556,462 km (0.109 R)
• M15: 10,363,392 km (0.088 R)
• M16: 10,861,105 km (0.101 R)
• M17: 11,946,288 km (0.069 R)
• M18: 12,493,965 km (0.102 R)
• M19: 14,052,177 km (0.077 R)
• M20: 15,144,391 km (0.105 R)
• M21: 16,292,555 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 924.3

Radius: 14.1

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 2.62 AU - 3.68 AU

Year: 3930 Days

Day: 12 Hours

Environment

Temp: -208 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 41,232,972 km

• M1: 175,478 km (0.057 R)
• M2: 683,213 km (0.043 R)
• M3: 1,135,897 km (0.084 R)
• M4: 1,799,662 km (0.089 R)
• M5: 2,297,823 km (0.111 R)
• M6: 2,960,392 km (0.057 R)
• M7: 5,975,687 km (0.084 R)
• M8: 9,173,790 km (0.115 R)
• M9: 10,369,227 km (0.112 R)
• M10: 11,619,865 km (0.096 R)
• M11: 14,047,240 km (0.055 R)
• M12: 14,798,820 km (0.069 R)
• M13: 20,627,153 km (0.077 R)
• M14: 22,673,203 km (0.093 R)
• M15: 25,240,602 km (0.101 R)
• M16: 26,271,630 km (0.072 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.9

Radius: 11.1

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 2.41 AU - 3.89 AU

Year: 3930 Days

Day: 8.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 41,232,972 km

• M1: 138,079 km (0.108 R)
• M2: 520,451 km (0.043 R)
• M3: 1,157,588 km (0.071 R)
• M4: 1,940,284 km (0.064 R)
• M5: 2,884,546 km (0.087 R)
• M6: 3,625,355 km (0.117 R)
• M7: 5,837,758 km (0.102 R)
• M8: 6,342,800 km (0.107 R)
• M9: 7,440,549 km (0.031 R)
• M10: 9,002,800 km (0.04 R)
• M11: 9,751,088 km (0.114 R)
• M12: 10,617,709 km (0.112 R)
• M13: 11,575,883 km (0.032 R)
• M14: 11,991,765 km (0.118 R)
• M15: 13,030,723 km (0.047 R)
• M16: 15,287,257 km (0.065 R)
• M17: 16,300,334 km (0.098 R)
• M18: 16,929,243 km (0.087 R)
• M19: 19,316,675 km (0.109 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 750.1

Radius: 14

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 3.8 AU - 6 AU

Year: 7624 Days

Day: 6.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 41,232,972 km

• M1: 174,132 km (0.044 R)
• M2: 623,374 km (0.088 R)
• M3: 1,185,862 km (0.109 R)
• M4: 1,830,928 km (0.113 R)
• M5: 2,444,878 km (0.06 R)
• M6: 2,962,786 km (0.052 R)
• M7: 3,792,306 km (0.12 R)
• M8: 4,302,285 km (0.102 R)
• M9: 6,496,736 km (0.092 R)
• M10: 9,176,483 km (0.085 R)
• M11: 10,102,344 km (0.08 R)
• M12: 11,191,716 km (0.063 R)
• M13: 15,245,220 km (0.095 R)
• M14: 15,756,097 km (0.049 R)
• M15: 16,744,789 km (0.043 R)
• M16: 18,197,983 km (0.111 R)
• M17: 20,494,759 km (0.093 R)
• M18: 20,960,606 km (0.112 R)
• M19: 21,433,635 km (0.06 R)
• M20: 22,319,404 km (0.09 R)
• M21: 25,123,317 km (0.079 R)
• M22: 29,314,900 km (0.11 R)
• M23: 38,229,885 km (0.12 R)
• M24: 39,412,905 km (0.112 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 373 - 15,730 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit