🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.01

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.54 AU - 0.62 AU

Year: 290 Days

Day: 22.9 Hours

Environment

Temp: -125 °C

Axial Tilt: 39.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 604.9

Radius: 8.7

Gravity: 7.99 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.72 AU - 0.9 AU

Year: 478 Days

Day: 14.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 84,022,704 km

• M1: 120,426 km (0.099 R)
• M2: 515,365 km (0.095 R)
• M3: 994,078 km (0.065 R)
• M4: 1,269,188 km (0.1 R)
• M5: 1,682,826 km (0.087 R)
• M6: 1,954,646 km (0.033 R)
• M7: 2,394,613 km (0.116 R)
• M8: 2,689,620 km (0.1 R)
• M9: 2,964,731 km (0.06 R)
• M10: 3,449,577 km (0.087 R)
• M11: 3,959,556 km (0.035 R)
• M12: 4,696,775 km (0.096 R)
• M13: 5,917,194 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.4

Radius: 8.6

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.99 AU - 0.99 AU

Year: 646 Days

Day: 6 Hours

Environment

Temp: -168 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 84,022,704 km

• M1: 107,112 km (0.079 R)
• M2: 389,254 km (0.106 R)
• M3: 692,937 km (0.101 R)
• M4: 1,065,286 km (0.063 R)
• M5: 1,436,439 km (0.103 R)
• M6: 1,756,578 km (0.092 R)
• M7: 2,224,221 km (0.081 R)
• M8: 2,687,675 km (0.106 R)
• M9: 3,322,868 km (0.075 R)
• M10: 4,354,944 km (0.033 R)
• M11: 4,952,886 km (0.097 R)
• M12: 5,280,206 km (0.088 R)
• M13: 5,621,888 km (0.115 R)
• M14: 5,996,631 km (0.032 R)
• M15: 6,483,572 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 962.5

Radius: 11.8

Gravity: 6.91 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.97 AU - 1.13 AU

Year: 706 Days

Day: 12 Hours

Environment

Temp: -169 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 84,022,704 km

• M1: 146,756 km (0.095 R)
• M2: 603,777 km (0.107 R)
• M3: 1,042,248 km (0.064 R)
• M4: 1,482,365 km (0.106 R)
• M5: 2,076,119 km (0.083 R)
• M6: 2,567,847 km (0.12 R)
• M7: 3,008,862 km (0.047 R)
• M8: 3,758,647 km (0.098 R)
• M9: 5,668,114 km (0.11 R)
• M10: 6,067,540 km (0.053 R)
• M11: 6,507,358 km (0.045 R)
• M12: 7,521,781 km (0.084 R)
• M13: 7,955,914 km (0.075 R)
• M14: 8,560,888 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 562.4

Radius: 12.4

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.99 AU - 1.65 AU

Year: 995 Days

Day: 14.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 84,022,704 km

• M1: 154,983 km (0.058 R)
• M2: 703,858 km (0.084 R)
• M3: 1,157,738 km (0.085 R)
• M4: 1,801,757 km (0.099 R)
• M5: 2,192,207 km (0.088 R)
• M6: 2,942,889 km (0.118 R)
• M7: 3,505,228 km (0.116 R)
• M8: 3,919,464 km (0.118 R)
• M9: 5,156,339 km (0.109 R)
• M10: 5,576,261 km (0.109 R)
• M11: 6,441,684 km (0.095 R)
• M12: 6,952,411 km (0.088 R)
• M13: 8,387,504 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 965.5

Radius: 11.5

Gravity: 7.3 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 3.79 AU - 5.11 AU

Year: 6158 Days

Day: 12.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 115.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 84,022,704 km

• M1: 143,315 km (0.108 R)
• M2: 706,102 km (0.119 R)
• M3: 1,098,048 km (0.103 R)
• M4: 2,170,516 km (0.11 R)
• M5: 2,604,948 km (0.037 R)
• M6: 4,014,758 km (0.108 R)
• M7: 4,843,829 km (0.075 R)
• M8: 5,687,412 km (0.09 R)
• M9: 6,078,012 km (0.045 R)
• M10: 6,840,662 km (0.088 R)
• M11: 9,514,724 km (0.101 R)
• M12: 10,160,837 km (0.025 R)
• M13: 11,235,099 km (0.08 R)
• M14: 15,595,129 km (0.068 R)
• M15: 19,107,089 km (0.119 R)
• M16: 24,113,232 km (0.115 R)
• M17: 26,375,451 km (0.066 R)
• M18: 28,397,117 km (0.104 R)
• M19: 31,418,395 km (0.107 R)
• M20: 33,794,159 km (0.086 R)
• M21: 34,219,167 km (0.076 R)
• M22: 36,509,510 km (0.073 R)
• M23: 37,749,227 km (0.096 R)
• M24: 38,784,146 km (0.027 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 278.7

Radius: 10

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 4.58 AU - 4.92 AU

Year: 6791 Days

Day: 8.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 84,022,704 km

• M1: 136,882 km (0.105 R)
• M2: 724,054 km (0.115 R)
• M3: 1,315,863 km (0.052 R)
• M4: 1,859,651 km (0.103 R)
• M5: 3,943,250 km (0.097 R)
• M6: 4,378,281 km (0.109 R)
• M7: 5,130,309 km (0.11 R)
• M8: 5,907,770 km (0.108 R)
• M9: 8,713,926 km (0.068 R)
• M10: 12,939,019 km (0.109 R)
• M11: 13,593,061 km (0.112 R)
• M12: 18,051,077 km (0.109 R)
• M13: 19,123,993 km (0.081 R)
• M14: 20,846,164 km (0.071 R)
• M15: 23,251,249 km (0.105 R)
• M16: 24,672,878 km (0.072 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 926.4

Radius: 6.9

Gravity: 19.46 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 7.53 AU - 9.79 AU

Year: 16718 Days

Day: 19.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 84,022,704 km

• M1: 85,869 km (0.118 R)
• M2: 332,556 km (0.085 R)
• M3: 647,310 km (0.113 R)
• M4: 912,846 km (0.119 R)
• M5: 2,139,998 km (0.092 R)
• M6: 2,864,650 km (0.118 R)
• M7: 3,956,265 km (0.107 R)
• M8: 4,243,194 km (0.05 R)
• M9: 5,301,599 km (0.035 R)
• M10: 5,571,922 km (0.116 R)
• M11: 5,974,191 km (0.063 R)
• M12: 6,836,772 km (0.069 R)
• M13: 7,928,238 km (0.115 R)
• M14: 16,275,949 km (0.114 R)
• M15: 16,601,325 km (0.074 R)
• M16: 17,014,215 km (0.12 R)
• M17: 18,381,539 km (0.1 R)
• M18: 19,363,051 km (0.105 R)
• M19: 28,272,352 km (0.091 R)
• M20: 28,506,921 km (0.079 R)
• M21: 29,458,214 km (0.094 R)
• M22: 31,173,503 km (0.091 R)
• M23: 32,825,064 km (0.112 R)
• M24: 34,001,950 km (0.104 R)
• M25: 39,282,456 km (0.049 R)
• M26: 44,606,644 km (0.116 R)
• M27: 44,924,689 km (0.098 R)
• M28: 53,375,174 km (0.06 R)
• M29: 53,913,427 km (0.105 R)
• M30: 63,225,296 km (0.115 R)
• M31: 69,851,883 km (0.117 R)
• M32: 70,495,902 km (0.076 R)
• M33: 74,666,691 km (0.086 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 656.6

Radius: 7.1

Gravity: 13.03 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 10.85 AU - 11.01 AU

Year: 23705 Days

Day: 15.1 Hours

Environment

Temp: -242 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 84,022,704 km

• M1: 88,263 km (0.091 R)
• M2: 354,846 km (0.111 R)
• M3: 602,730 km (0.063 R)
• M4: 876,793 km (0.097 R)
• M5: 1,248,544 km (0.112 R)
• M6: 2,114,267 km (0.065 R)
• M7: 2,540,770 km (0.071 R)
• M8: 3,625,654 km (0.095 R)
• M9: 3,875,183 km (0.046 R)
• M10: 5,300,552 km (0.064 R)
• M11: 6,855,173 km (0.101 R)
• M12: 7,736,753 km (0.113 R)
• M13: 9,197,875 km (0.058 R)
• M14: 10,770,149 km (0.048 R)
• M15: 11,353,730 km (0.088 R)
• M16: 13,675,489 km (0.053 R)
• M17: 18,860,103 km (0.097 R)
• M18: 19,612,131 km (0.051 R)
• M19: 21,681,219 km (0.094 R)
• M20: 30,256,469 km (0.096 R)
• M21: 32,472,611 km (0.073 R)
• M22: 34,376,992 km (0.117 R)
• M23: 37,079,179 km (0.051 R)
• M24: 38,706,504 km (0.093 R)
• M25: 54,600,530 km (0.096 R)
• M26: 55,359,290 km (0.042 R)
• M27: 55,741,363 km (0.085 R)
• M28: 56,125,232 km (0.074 R)
• M29: 57,678,057 km (0.044 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 425 - 13,915 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit