🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.9

Radius: 14.6

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.42 AU - 0.64 AU

Year: 257 Days

Day: 11.7 Hours

Environment

Temp: -138 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 33,977,875 km

• M1: 181,612 km (0.068 R)
• M2: 659,876 km (0.117 R)
• M3: 1,188,705 km (0.079 R)
• M4: 1,810,583 km (0.038 R)
• M5: 2,337,467 km (0.109 R)
• M6: 2,958,747 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 941.3

Radius: 9.3

Gravity: 10.88 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.45 AU - 0.63 AU

Year: 265 Days

Day: 6.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 33,977,875 km

• M1: 115,639 km (0.078 R)
• M2: 415,583 km (0.045 R)
• M3: 875,447 km (0.098 R)
• M4: 1,337,255 km (0.114 R)
• M5: 1,796,072 km (0.1 R)
• M6: 2,182,483 km (0.04 R)
• M7: 2,726,720 km (0.092 R)
• M8: 3,197,804 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.8

Radius: 12.8

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.97 AU - 1.25 AU

Year: 780 Days

Day: 6.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 33,977,875 km

• M1: 160,967 km (0.102 R)
• M2: 748,139 km (0.112 R)
• M3: 1,158,037 km (0.119 R)
• M4: 1,607,878 km (0.105 R)
• M5: 2,417,651 km (0.108 R)
• M6: 2,845,352 km (0.104 R)
• M7: 3,268,265 km (0.099 R)
• M8: 4,472,827 km (0.091 R)
• M9: 4,870,907 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.9

Radius: 11

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.02 AU - 1.42 AU

Year: 899 Days

Day: 5.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,977,875 km

• M1: 141,669 km (0.086 R)
• M2: 670,647 km (0.065 R)
• M3: 1,021,005 km (0.099 R)
• M4: 1,894,358 km (0.095 R)
• M5: 3,121,210 km (0.116 R)
• M6: 3,552,501 km (0.057 R)
• M7: 4,251,123 km (0.119 R)
• M8: 5,286,639 km (0.098 R)
• M9: 5,635,501 km (0.072 R)
• M10: 6,098,357 km (0.082 R)
• M11: 6,628,233 km (0.044 R)
• M12: 7,255,347 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371.7

Radius: 10.9

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.78 AU - 2.68 AU

Year: 2221 Days

Day: 5.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 33,977,875 km

• M1: 135,536 km (0.085 R)
• M2: 698,622 km (0.082 R)
• M3: 1,180,178 km (0.048 R)
• M4: 1,715,888 km (0.071 R)
• M5: 2,226,016 km (0.076 R)
• M6: 3,359,071 km (0.082 R)
• M7: 3,840,925 km (0.083 R)
• M8: 4,387,706 km (0.116 R)
• M9: 5,820,554 km (0.102 R)
• M10: 7,379,513 km (0.104 R)
• M11: 8,052,105 km (0.115 R)
• M12: 8,433,131 km (0.113 R)
• M13: 11,818,531 km (0.093 R)
• M14: 12,582,677 km (0.062 R)
• M15: 13,666,214 km (0.085 R)
• M16: 14,252,040 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.3

Radius: 13.7

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 2.24 AU - 2.56 AU

Year: 2479 Days

Day: 13.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 33,977,875 km

• M1: 170,392 km (0.081 R)
• M2: 733,478 km (0.117 R)
• M3: 1,254,977 km (0.109 R)
• M4: 1,845,439 km (0.118 R)
• M5: 3,870,247 km (0.111 R)
• M6: 4,388,154 km (0.095 R)
• M7: 5,641,635 km (0.076 R)
• M8: 6,117,805 km (0.083 R)
• M9: 7,061,319 km (0.1 R)
• M10: 7,647,294 km (0.085 R)
• M11: 8,501,647 km (0.06 R)
• M12: 9,528,636 km (0.074 R)
• M13: 12,435,772 km (0.069 R)
• M14: 14,972,652 km (0.082 R)
• M15: 15,994,256 km (0.115 R)
• M16: 17,061,936 km (0.109 R)
• M17: 17,669,154 km (0.114 R)
• M18: 18,520,216 km (0.075 R)
• M19: 20,365,805 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 449.9

Radius: 13.1

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.31 AU - 2.95 AU

Year: 2844 Days

Day: 12.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 33,977,875 km

• M1: 162,912 km (0.051 R)
• M2: 679,623 km (0.025 R)
• M3: 1,393,654 km (0.079 R)
• M4: 1,822,850 km (0.031 R)
• M5: 2,476,294 km (0.074 R)
• M6: 2,912,671 km (0.11 R)
• M7: 3,504,779 km (0.117 R)
• M8: 4,058,740 km (0.042 R)
• M9: 5,296,662 km (0.11 R)
• M10: 5,852,269 km (0.101 R)
• M11: 6,393,364 km (0.117 R)
• M12: 6,855,771 km (0.061 R)
• M13: 9,000,556 km (0.083 R)
• M14: 9,900,985 km (0.112 R)
• M15: 10,373,266 km (0.095 R)
• M16: 11,245,870 km (0.056 R)
• M17: 12,002,985 km (0.085 R)
• M18: 14,022,556 km (0.097 R)
• M19: 15,813,991 km (0.064 R)
• M20: 17,859,592 km (0.084 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350

Radius: 12.3

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 2.21 AU - 3.55 AU

Year: 3259 Days

Day: 5.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 33,977,875 km

• M1: 153,039 km (0.051 R)
• M2: 605,572 km (0.097 R)
• M3: 1,079,349 km (0.091 R)
• M4: 1,476,681 km (0.119 R)
• M5: 2,180,688 km (0.083 R)
• M6: 3,034,144 km (0.113 R)
• M7: 3,556,241 km (0.092 R)
• M8: 4,318,442 km (0.095 R)
• M9: 4,717,270 km (0.11 R)
• M10: 5,186,708 km (0.081 R)
• M11: 5,861,394 km (0.11 R)
• M12: 7,211,216 km (0.075 R)
• M13: 7,805,718 km (0.113 R)
• M14: 8,562,085 km (0.095 R)
• M15: 10,002,712 km (0.1 R)
• M16: 11,880,913 km (0.114 R)
• M17: 12,796,452 km (0.117 R)
• M18: 15,004,517 km (0.036 R)
• M19: 16,173,923 km (0.116 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832.1

Radius: 11.2

Gravity: 6.63 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 3.45 AU - 4.63 AU

Year: 5415 Days

Day: 5.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 33,977,875 km

• M1: 139,276 km (0.096 R)
• M2: 556,354 km (0.086 R)
• M3: 1,118,394 km (0.055 R)
• M4: 1,881,193 km (0.099 R)
• M5: 2,321,310 km (0.042 R)
• M6: 2,792,394 km (0.106 R)
• M7: 3,975,863 km (0.082 R)
• M8: 4,707,695 km (0.091 R)
• M9: 5,063,888 km (0.036 R)
• M10: 5,892,959 km (0.056 R)
• M11: 7,231,262 km (0.048 R)
• M12: 8,361,025 km (0.072 R)
• M13: 9,219,418 km (0.115 R)
• M14: 9,604,782 km (0.12 R)
• M15: 10,001,066 km (0.106 R)
• M16: 12,456,267 km (0.099 R)
• M17: 14,414,952 km (0.025 R)
• M18: 15,829,699 km (0.119 R)
• M19: 19,348,241 km (0.098 R)
• M20: 26,834,118 km (0.09 R)
• M21: 29,797,652 km (0.061 R)
• M22: 32,972,867 km (0.071 R)
• M23: 33,876,438 km (0.077 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 402 - 15,830 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit