🌌 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: 417.3

Radius: 12.7

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.44 AU - 0.58 AU

Year: 251 Days

Day: 12 Hours

Environment

Temp: -149 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 27,789,539 km

• M1: 158,125 km (0.108 R)
• M2: 650,751 km (0.05 R)
• M3: 1,093,411 km (0.059 R)
• M4: 1,579,305 km (0.085 R)
• M5: 2,040,964 km (0.094 R)
• M6: 2,617,364 km (0.051 R)
• M7: 3,397,966 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.6

Radius: 9.4

Gravity: 8.55 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.6 AU - 0.7 AU

Year: 362 Days

Day: 11.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,789,539 km

• M1: 116,836 km (0.099 R)
• M2: 433,684 km (0.037 R)
• M3: 732,880 km (0.082 R)
• M4: 1,633,758 km (0.113 R)
• M5: 1,982,022 km (0.111 R)
• M6: 2,489,757 km (0.11 R)
• M7: 2,800,173 km (0.102 R)
• M8: 3,803,077 km (0.071 R)
• M9: 4,190,386 km (0.111 R)
• M10: 4,879,733 km (0.092 R)
• M11: 5,385,224 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 661.5

Radius: 11.2

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.59 AU - 0.75 AU

Year: 379 Days

Day: 12.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,789,539 km

• M1: 139,276 km (0.076 R)
• M2: 492,626 km (0.059 R)
• M3: 849,866 km (0.058 R)
• M4: 1,246,150 km (0.041 R)
• M5: 1,634,955 km (0.084 R)
• M6: 2,138,202 km (0.07 R)
• M7: 2,486,616 km (0.075 R)
• M8: 3,300,428 km (0.106 R)
• M9: 3,696,563 km (0.09 R)
• M10: 4,377,982 km (0.085 R)
• M11: 5,279,309 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.3

Radius: 10

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.7 AU - 0.92 AU

Year: 503 Days

Day: 11.4 Hours

Environment

Temp: -170 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 27,789,539 km

• M1: 124,316 km (0.083 R)
• M2: 910,602 km (0.092 R)
• M3: 1,263,055 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.6

Radius: 9.3

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 1.09 AU - 1.13 AU

Year: 807 Days

Day: 14.7 Hours

Environment

Temp: -170 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,789,539 km

• M1: 115,639 km (0.061 R)
• M2: 414,685 km (0.077 R)
• M3: 743,501 km (0.119 R)
• M4: 1,164,619 km (0.039 R)
• M5: 1,943,875 km (0.115 R)
• M6: 2,689,171 km (0.108 R)
• M7: 3,425,193 km (0.091 R)
• M8: 3,784,527 km (0.096 R)
• M9: 4,398,477 km (0.111 R)
• M10: 5,245,949 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.9

Radius: 8.2

Gravity: 7.12 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.47 AU - 1.71 AU

Year: 1384 Days

Day: 5.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 27,789,539 km

• M1: 102,026 km (0.104 R)
• M2: 382,821 km (0.088 R)
• M3: 659,577 km (0.043 R)
• M4: 1,082,640 km (0.076 R)
• M5: 1,520,513 km (0.088 R)
• M6: 2,395,212 km (0.09 R)
• M7: 2,976,549 km (0.06 R)
• M8: 3,404,249 km (0.103 R)
• M9: 3,727,680 km (0.058 R)
• M10: 3,987,681 km (0.093 R)
• M11: 4,526,233 km (0.041 R)
• M12: 4,841,735 km (0.103 R)
• M13: 5,152,001 km (0.108 R)
• M14: 6,344,296 km (0.108 R)
• M15: 6,621,950 km (0.051 R)
• M16: 7,103,056 km (0.109 R)
• M17: 7,555,590 km (0.095 R)
• M18: 9,500,961 km (0.095 R)
• M19: 9,865,232 km (0.067 R)
• M20: 10,751,300 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.2

Radius: 14.4

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 2.39 AU - 2.57 AU

Year: 2696 Days

Day: 13.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 27,789,539 km

• M1: 179,069 km (0.093 R)
• M2: 759,060 km (0.099 R)
• M3: 1,245,103 km (0.12 R)
• M4: 1,891,815 km (0.081 R)
• M5: 2,715,501 km (0.049 R)
• M6: 3,227,424 km (0.075 R)
• M7: 3,930,983 km (0.099 R)
• M8: 4,756,315 km (0.102 R)
• M9: 6,411,914 km (0.106 R)
• M10: 7,189,075 km (0.092 R)
• M11: 8,118,676 km (0.118 R)
• M12: 9,225,850 km (0.115 R)
• M13: 9,937,039 km (0.091 R)
• M14: 10,868,136 km (0.103 R)
• M15: 13,493,130 km (0.111 R)
• M16: 14,589,981 km (0.079 R)
• M17: 15,369,236 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472.3

Radius: 13.4

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 2.97 AU - 4.83 AU

Year: 5316 Days

Day: 6.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 27,789,539 km

• M1: 184,155 km (0.041 R)
• M2: 935,136 km (0.071 R)
• M3: 2,155,257 km (0.098 R)
• M4: 3,640,315 km (0.08 R)
• M5: 4,540,445 km (0.109 R)
• M6: 5,955,940 km (0.062 R)
• M7: 7,040,824 km (0.046 R)
• M8: 8,289,966 km (0.083 R)
• M9: 8,967,644 km (0.106 R)
• M10: 11,224,478 km (0.12 R)
• M11: 14,256,527 km (0.116 R)
• M12: 15,904,049 km (0.106 R)
• M13: 16,714,869 km (0.039 R)
• M14: 17,982,711 km (0.094 R)
• M15: 19,378,609 km (0.11 R)
• M16: 21,051,113 km (0.117 R)
• M17: 23,330,087 km (0.052 R)
• M18: 25,221,752 km (0.045 R)
• M19: 26,165,116 km (0.106 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 397 - 12,609 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit