🌌 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: 403.8

Radius: 13.5

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.4 AU - 0.62 AU

Year: 251 Days

Day: 5.4 Hours

Environment

Temp: -144 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 63,313,690 km

• M1: 167,849 km (0.093 R)
• M2: 728,841 km (0.086 R)
• M3: 1,199,625 km (0.098 R)
• M4: 1,677,591 km (0.045 R)
• M5: 2,225,867 km (0.032 R)
• M6: 3,153,224 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143

Radius: 8.3

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.68 AU - 0.96 AU

Year: 513 Days

Day: 11.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,313,690 km

• M1: 103,223 km (0.113 R)
• M2: 384,167 km (0.092 R)
• M3: 643,420 km (0.057 R)
• M4: 949,198 km (0.067 R)
• M5: 1,391,260 km (0.097 R)
• M6: 1,951,205 km (0.047 R)
• M7: 2,516,236 km (0.112 R)
• M8: 2,934,811 km (0.111 R)
• M9: 3,600,671 km (0.103 R)
• M10: 3,911,984 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 774.4

Radius: 9.5

Gravity: 8.58 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.07 AU - 1.39 AU

Year: 942 Days

Day: 14.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,313,690 km

• M1: 118,631 km (0.099 R)
• M2: 509,231 km (0.089 R)
• M3: 812,017 km (0.119 R)
• M4: 1,269,338 km (0.113 R)
• M5: 1,990,400 km (0.034 R)
• M6: 2,369,331 km (0.082 R)
• M7: 2,923,890 km (0.111 R)
• M8: 3,445,389 km (0.111 R)
• M9: 4,174,828 km (0.11 R)
• M10: 4,638,581 km (0.095 R)
• M11: 5,467,653 km (0.055 R)
• M12: 5,771,935 km (0.11 R)
• M13: 6,282,363 km (0.083 R)
• M14: 6,639,303 km (0.045 R)
• M15: 7,080,617 km (0.042 R)
• M16: 7,716,109 km (0.06 R)
• M17: 9,185,459 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 412.2

Radius: 13.1

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.23 AU - 1.23 AU

Year: 942 Days

Day: 6.7 Hours

Environment

Temp: -182 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,313,690 km

• M1: 162,912 km (0.096 R)
• M2: 741,407 km (0.11 R)
• M3: 1,177,186 km (0.099 R)
• M4: 1,605,185 km (0.104 R)
• M5: 2,216,442 km (0.107 R)
• M6: 3,370,889 km (0.074 R)
• M7: 3,782,433 km (0.061 R)
• M8: 4,212,078 km (0.109 R)
• M9: 6,270,544 km (0.088 R)
• M10: 7,406,291 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 814.6

Radius: 8.3

Gravity: 11.82 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.75 AU - 2.37 AU

Year: 2041 Days

Day: 5.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,313,690 km

• M1: 103,223 km (0.111 R)
• M2: 557,102 km (0.115 R)
• M3: 1,004,101 km (0.071 R)
• M4: 1,563,597 km (0.066 R)
• M5: 2,162,138 km (0.097 R)
• M6: 2,563,808 km (0.044 R)
• M7: 4,274,011 km (0.099 R)
• M8: 5,203,313 km (0.117 R)
• M9: 6,235,239 km (0.091 R)
• M10: 6,717,094 km (0.12 R)
• M11: 7,223,483 km (0.086 R)
• M12: 8,186,295 km (0.117 R)
• M13: 9,787,590 km (0.118 R)
• M14: 11,118,114 km (0.105 R)
• M15: 11,587,402 km (0.048 R)
• M16: 12,357,233 km (0.082 R)
• M17: 12,775,808 km (0.068 R)
• M18: 13,117,639 km (0.039 R)
• M19: 14,918,648 km (0.037 R)
• M20: 15,976,454 km (0.094 R)
• M21: 16,725,790 km (0.072 R)
• M22: 17,603,181 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.1

Radius: 12.8

Gravity: 5.15 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 2.82 AU - 2.9 AU

Year: 3339 Days

Day: 6.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 153 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 63,313,690 km

• M1: 159,322 km (0.096 R)
• M2: 611,257 km (0.091 R)
• M3: 1,099,544 km (0.12 R)
• M4: 2,489,009 km (0.106 R)
• M5: 2,893,672 km (0.094 R)
• M6: 3,437,909 km (0.086 R)
• M7: 4,158,821 km (0.116 R)
• M8: 4,567,522 km (0.047 R)
• M9: 5,205,707 km (0.115 R)
• M10: 7,064,161 km (0.095 R)
• M11: 7,716,109 km (0.091 R)
• M12: 8,266,330 km (0.082 R)
• M13: 8,696,124 km (0.08 R)
• M14: 9,522,952 km (0.089 R)
• M15: 11,596,977 km (0.054 R)
• M16: 12,274,056 km (0.074 R)
• M17: 16,339,827 km (0.118 R)
• M18: 17,075,999 km (0.053 R)
• M19: 18,675,798 km (0.042 R)
• M20: 20,051,500 km (0.049 R)
• M21: 21,966,802 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 856.1

Radius: 13.7

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 4.06 AU - 5.2 AU

Year: 6877 Days

Day: 8.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 63,313,690 km

• M1: 173,534 km (0.044 R)
• M2: 738,116 km (0.07 R)
• M3: 1,558,062 km (0.108 R)
• M4: 2,620,207 km (0.099 R)
• M5: 3,747,875 km (0.1 R)
• M6: 5,328,975 km (0.073 R)
• M7: 5,966,412 km (0.049 R)
• M8: 6,583,353 km (0.115 R)
• M9: 7,510,412 km (0.116 R)
• M10: 8,565,226 km (0.116 R)
• M11: 9,578,752 km (0.111 R)
• M12: 10,621,449 km (0.101 R)
• M13: 12,434,425 km (0.037 R)
• M14: 13,850,369 km (0.053 R)
• M15: 15,371,331 km (0.095 R)
• M16: 16,467,434 km (0.102 R)
• M17: 18,385,578 km (0.07 R)
• M18: 20,372,388 km (0.12 R)
• M19: 21,694,683 km (0.098 R)
• M20: 22,580,153 km (0.038 R)
• M21: 23,073,228 km (0.117 R)
• M22: 27,559,817 km (0.115 R)
• M23: 29,273,162 km (0.053 R)
• M24: 36,501,880 km (0.07 R)
• M25: 40,225,371 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 883.2

Radius: 5.7

Gravity: 27.18 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 5.4 AU - 6.54 AU

Year: 10069 Days

Day: 16.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 63,313,690 km

• M1: 70,909 km (0.11 R)
• M2: 346,618 km (0.113 R)
• M3: 562,488 km (0.08 R)
• M4: 869,164 km (0.093 R)
• M5: 1,089,671 km (0.096 R)
• M6: 1,321,099 km (0.114 R)
• M7: 1,850,974 km (0.093 R)
• M8: 2,276,580 km (0.1 R)
• M9: 3,704,492 km (0.095 R)
• M10: 4,776,810 km (0.115 R)
• M11: 6,496,138 km (0.067 R)
• M12: 8,496,710 km (0.09 R)
• M13: 11,489,266 km (0.081 R)
• M14: 13,220,263 km (0.094 R)
• M15: 14,049,783 km (0.1 R)
• M16: 17,414,389 km (0.104 R)
• M17: 17,716,876 km (0.098 R)
• M18: 19,121,600 km (0.087 R)
• M19: 21,193,680 km (0.111 R)
• M20: 21,887,066 km (0.11 R)
• M21: 23,502,424 km (0.12 R)
• M22: 24,433,371 km (0.067 R)
• M23: 26,468,052 km (0.11 R)
• M24: 27,373,568 km (0.086 R)
• M25: 27,679,944 km (0.099 R)
• M26: 36,472,260 km (0.11 R)
• M27: 39,122,536 km (0.078 R)
• M28: 41,628,450 km (0.078 R)
• M29: 47,838,407 km (0.072 R)
• M30: 49,481,889 km (0.079 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 933.6

Radius: 4.9

Gravity: 38.88 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 5.69 AU - 8.47 AU

Year: 13004 Days

Day: 22.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 63,313,690 km

• M1: 60,886 km (0.096 R)
• M2: 238,309 km (0.115 R)
• M3: 590,014 km (0.059 R)
• M4: 861,085 km (0.077 R)
• M5: 1,264,850 km (0.089 R)
• M6: 1,684,771 km (0.066 R)
• M7: 2,293,036 km (0.068 R)
• M8: 2,613,475 km (0.104 R)
• M9: 2,772,946 km (0.056 R)
• M10: 3,450,176 km (0.079 R)
• M11: 4,388,603 km (0.074 R)
• M12: 4,916,534 km (0.025 R)
• M13: 5,786,446 km (0.069 R)
• M14: 6,712,157 km (0.076 R)
• M15: 7,920,160 km (0.082 R)
• M16: 8,550,565 km (0.078 R)
• M17: 9,006,241 km (0.112 R)
• M18: 12,920,020 km (0.103 R)
• M19: 13,184,210 km (0.08 R)
• M20: 15,503,575 km (0.073 R)
• M21: 16,410,138 km (0.099 R)
• M22: 17,431,742 km (0.112 R)
• M23: 19,255,939 km (0.082 R)
• M24: 20,302,675 km (0.117 R)
• M25: 22,224,858 km (0.096 R)
• M26: 23,768,409 km (0.116 R)
• M27: 24,768,620 km (0.1 R)
• M28: 25,381,972 km (0.09 R)
• M29: 27,282,912 km (0.117 R)
• M30: 35,578,413 km (0.102 R)
• M31: 37,417,419 km (0.037 R)
• M32: 39,873,667 km (0.063 R)
• M33: 40,433,761 km (0.102 R)
• M34: 42,145,460 km (0.12 R)
• M35: 43,165,867 km (0.116 R)
• M36: 48,516,385 km (0.114 R)
• M37: 50,447,992 km (0.111 R)
• M38: 51,598,101 km (0.092 R)
• M39: 54,463,648 km (0.046 R)
• M40: 54,807,723 km (0.112 R)
• M41: 57,433,615 km (0.095 R)
• M42: 58,327,312 km (0.082 R)
• M43: 61,621,158 km (0.04 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: 299 - 15,353 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit