🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 909.3

Radius: 11.2

Gravity: 7.25 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.58 AU - 0.84 AU

Year: 413 Days

Day: 7.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 41,844,760 km

• M1: 139,276 km (0.088 R)
• M2: 490,531 km (0.057 R)
• M3: 1,034,918 km (0.072 R)
• M4: 1,606,083 km (0.073 R)
• M5: 1,998,628 km (0.1 R)
• M6: 2,494,245 km (0.103 R)
• M7: 3,015,145 km (0.105 R)
• M8: 3,520,187 km (0.089 R)
• M9: 4,405,208 km (0.07 R)
• M10: 4,947,351 km (0.089 R)
• M11: 5,349,470 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202

Radius: 11.4

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.71 AU - 0.77 AU

Year: 439 Days

Day: 9.7 Hours

Environment

Temp: -163 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 41,844,760 km

• M1: 141,819 km (0.077 R)
• M2: 531,970 km (0.085 R)
• M3: 1,011,282 km (0.068 R)
• M4: 1,416,841 km (0.094 R)
• M5: 2,016,280 km (0.077 R)
• M6: 2,779,229 km (0.057 R)
• M7: 3,714,515 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.3

Radius: 8.3

Gravity: 9.15 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.65 AU - 1.05 AU

Year: 541 Days

Day: 12.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 41,844,760 km

• M1: 103,223 km (0.096 R)
• M2: 414,685 km (0.096 R)
• M3: 733,927 km (0.079 R)
• M4: 1,069,625 km (0.089 R)
• M5: 1,479,224 km (0.11 R)
• M6: 1,848,581 km (0.074 R)
• M7: 2,122,345 km (0.095 R)
• M8: 2,442,933 km (0.094 R)
• M9: 2,939,897 km (0.05 R)
• M10: 3,230,716 km (0.059 R)
• M11: 3,566,413 km (0.114 R)
• M12: 3,897,922 km (0.098 R)
• M13: 4,516,360 km (0.034 R)
• M14: 6,320,061 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 744.9

Radius: 11.2

Gravity: 5.94 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.89 AU - 1.05 AU

Year: 659 Days

Day: 12.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 41,844,760 km

• M1: 139,276 km (0.11 R)
• M2: 559,496 km (0.111 R)
• M3: 929,152 km (0.101 R)
• M4: 1,689,858 km (0.118 R)
• M5: 2,135,061 km (0.115 R)
• M6: 2,517,134 km (0.118 R)
• M7: 3,017,090 km (0.072 R)
• M8: 3,637,323 km (0.109 R)
• M9: 4,052,158 km (0.075 R)
• M10: 4,403,413 km (0.092 R)
• M11: 5,256,271 km (0.103 R)
• M12: 6,275,631 km (0.082 R)
• M13: 6,853,826 km (0.108 R)
• M14: 7,354,979 km (0.093 R)
• M15: 7,764,129 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.9

Radius: 14.6

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.83 AU - 1.29 AU

Year: 753 Days

Day: 10.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 41,844,760 km

• M1: 181,612 km (0.103 R)
• M2: 794,813 km (0.119 R)
• M3: 1,494,483 km (0.097 R)
• M4: 1,964,220 km (0.117 R)
• M5: 3,481,890 km (0.081 R)
• M6: 4,407,153 km (0.103 R)
• M7: 4,893,646 km (0.057 R)
• M8: 7,511,309 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907.7

Radius: 13.2

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.23 AU - 1.31 AU

Year: 988 Days

Day: 5.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 41,844,760 km

• M1: 164,109 km (0.108 R)
• M2: 588,518 km (0.056 R)
• M3: 1,215,483 km (0.08 R)
• M4: 1,696,290 km (0.09 R)
• M5: 2,476,144 km (0.094 R)
• M6: 2,989,564 km (0.088 R)
• M7: 3,696,563 km (0.056 R)
• M8: 4,389,202 km (0.087 R)
• M9: 5,285,143 km (0.119 R)
• M10: 5,798,264 km (0.103 R)
• M11: 6,877,313 km (0.088 R)
• M12: 7,617,075 km (0.043 R)
• M13: 8,246,583 km (0.119 R)
• M14: 8,938,922 km (0.098 R)
• M15: 9,550,328 km (0.086 R)
• M16: 10,535,280 km (0.107 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.9

Radius: 9.7

Gravity: 6.89 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.36 AU - 2.22 AU

Year: 1653 Days

Day: 13.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 41,844,760 km

• M1: 120,725 km (0.074 R)
• M2: 445,951 km (0.039 R)
• M3: 1,184,067 km (0.089 R)
• M4: 1,783,955 km (0.029 R)
• M5: 2,862,256 km (0.059 R)
• M6: 4,197,267 km (0.119 R)
• M7: 4,960,965 km (0.096 R)
• M8: 5,431,151 km (0.101 R)
• M9: 6,048,541 km (0.077 R)
• M10: 6,763,170 km (0.12 R)
• M11: 7,341,964 km (0.085 R)
• M12: 7,924,947 km (0.105 R)
• M13: 8,301,186 km (0.099 R)
• M14: 9,058,151 km (0.104 R)
• M15: 9,893,506 km (0.092 R)
• M16: 12,205,989 km (0.071 R)
• M17: 12,552,458 km (0.073 R)
• M18: 14,087,931 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 90.4

Radius: 7.1

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 9.7 AU - 10.68 AU

Year: 22453 Days

Day: 24.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 41,844,760 km

• M1: 88,412 km (0.118 R)
• M2: 432,487 km (0.076 R)
• M3: 1,117,197 km (0.116 R)
• M4: 1,575,266 km (0.094 R)
• M5: 2,508,457 km (0.048 R)
• M6: 2,760,679 km (0.096 R)
• M7: 3,339,174 km (0.108 R)
• M8: 3,842,870 km (0.084 R)
• M9: 4,395,933 km (0.099 R)
• M10: 6,061,855 km (0.066 R)
• M11: 7,862,116 km (0.06 R)
• M12: 8,235,512 km (0.034 R)
• M13: 8,884,019 km (0.098 R)
• M14: 9,107,668 km (0.075 R)
• M15: 12,257,601 km (0.062 R)
• M16: 14,288,392 km (0.073 R)
• M17: 14,657,749 km (0.108 R)
• M18: 16,000,839 km (0.107 R)
• M19: 16,399,068 km (0.081 R)
• M20: 16,804,030 km (0.097 R)
• M21: 22,692,950 km (0.108 R)
• M22: 23,706,176 km (0.109 R)
• M23: 23,964,083 km (0.108 R)
• M24: 26,926,719 km (0.105 R)
• M25: 32,922,602 km (0.093 R)
• M26: 41,221,544 km (0.077 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 450 - 14,882 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit