🌌 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 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.12

Radius: 0.43

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.48 AU - 0.56 AU

Year: 242 Days

Day: 44.9 Hours

Environment

Temp: -116 °C

Axial Tilt: 93.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 94,134,408 km

• M1: 12,865 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 526.8

Radius: 10.9

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.65 AU - 0.81 AU

Year: 403 Days

Day: 14.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 94,134,408 km

• M1: 135,536 km (0.052 R)
• M2: 534,962 km (0.093 R)
• M3: 883,525 km (0.12 R)
• M4: 1,415,944 km (0.088 R)
• M5: 2,510,551 km (0.105 R)
• M6: 2,925,985 km (0.062 R)
• M7: 3,582,719 km (0.068 R)
• M8: 4,202,803 km (0.116 R)
• M9: 4,566,625 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 540.2

Radius: 14.2

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.71 AU - 1.15 AU

Year: 579 Days

Day: 11 Hours

Environment

Temp: -156 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 94,134,408 km

• M1: 176,825 km (0.113 R)
• M2: 940,372 km (0.075 R)
• M3: 1,501,663 km (0.118 R)
• M4: 2,031,539 km (0.084 R)
• M5: 3,156,665 km (0.111 R)
• M6: 3,825,816 km (0.117 R)
• M7: 4,771,125 km (0.09 R)
• M8: 5,778,517 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893.7

Radius: 11.6

Gravity: 6.64 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 2.4 AU - 3.02 AU

Year: 2881 Days

Day: 10.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 94,134,408 km

• M1: 144,212 km (0.093 R)
• M2: 631,901 km (0.104 R)
• M3: 1,419,534 km (0.111 R)
• M4: 1,790,238 km (0.088 R)
• M5: 2,368,284 km (0.119 R)
• M6: 2,766,214 km (0.045 R)
• M7: 3,758,647 km (0.114 R)
• M8: 4,806,430 km (0.094 R)
• M9: 5,246,248 km (0.103 R)
• M10: 6,971,560 km (0.105 R)
• M11: 7,633,979 km (0.109 R)
• M12: 8,866,516 km (0.105 R)
• M13: 10,109,076 km (0.116 R)
• M14: 11,336,377 km (0.069 R)
• M15: 11,810,303 km (0.053 R)
• M16: 13,550,725 km (0.097 R)
• M17: 15,613,829 km (0.038 R)
• M18: 16,201,150 km (0.12 R)
• M19: 17,648,210 km (0.118 R)
• M20: 20,990,526 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.1

Radius: 9.1

Gravity: 8.29 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 2.27 AU - 3.69 AU

Year: 3322 Days

Day: 10.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 94,134,408 km

• M1: 113,246 km (0.075 R)
• M2: 414,087 km (0.116 R)
• M3: 821,741 km (0.101 R)
• M4: 1,513,033 km (0.045 R)
• M5: 1,845,589 km (0.081 R)
• M6: 3,598,427 km (0.114 R)
• M7: 5,081,840 km (0.111 R)
• M8: 8,065,270 km (0.111 R)
• M9: 8,514,662 km (0.11 R)
• M10: 8,799,496 km (0.102 R)
• M11: 9,653,850 km (0.112 R)
• M12: 10,891,623 km (0.118 R)
• M13: 11,700,797 km (0.066 R)
• M14: 13,874,006 km (0.098 R)
• M15: 14,169,611 km (0.112 R)
• M16: 19,551,843 km (0.082 R)
• M17: 20,048,658 km (0.103 R)
• M18: 21,458,319 km (0.106 R)
• M19: 22,864,539 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 716

Radius: 9.5

Gravity: 7.93 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 2.71 AU - 3.95 AU

Year: 3924 Days

Day: 9 Hours

Environment

Temp: -205 °C

Axial Tilt: 148.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 94,134,408 km

• M1: 118,182 km (0.117 R)
• M2: 495,169 km (0.081 R)
• M3: 840,142 km (0.103 R)
• M4: 1,298,958 km (0.032 R)
• M5: 2,138,651 km (0.097 R)
• M6: 2,451,760 km (0.065 R)
• M7: 2,778,481 km (0.082 R)
• M8: 4,675,981 km (0.088 R)
• M9: 5,640,289 km (0.094 R)
• M10: 7,411,228 km (0.091 R)
• M11: 8,099,977 km (0.073 R)
• M12: 8,643,915 km (0.053 R)
• M13: 9,845,485 km (0.084 R)
• M14: 10,214,393 km (0.072 R)
• M15: 11,243,178 km (0.055 R)
• M16: 11,646,344 km (0.113 R)
• M17: 12,105,609 km (0.116 R)
• M18: 12,914,036 km (0.12 R)
• M19: 13,257,214 km (0.083 R)
• M20: 19,999,739 km (0.047 R)
• M21: 20,327,508 km (0.089 R)
• M22: 21,468,641 km (0.104 R)
• M23: 23,295,680 km (0.117 R)
• M24: 23,804,911 km (0.096 R)
• M25: 24,470,322 km (0.053 R)
• M26: 25,072,154 km (0.096 R)
• M27: 25,453,330 km (0.063 R)
• M28: 25,915,886 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 804.2

Radius: 9.1

Gravity: 9.71 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 5.14 AU - 5.22 AU

Year: 7612 Days

Day: 9.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 94,134,408 km

• M1: 116,088 km (0.097 R)
• M2: 459,714 km (0.093 R)
• M3: 869,313 km (0.073 R)
• M4: 1,596,808 km (0.107 R)
• M5: 2,010,147 km (0.089 R)
• M6: 2,568,895 km (0.036 R)
• M7: 3,272,753 km (0.079 R)
• M8: 3,893,584 km (0.111 R)
• M9: 5,150,954 km (0.067 R)
• M10: 7,536,292 km (0.105 R)
• M11: 10,980,334 km (0.083 R)
• M12: 11,342,511 km (0.1 R)
• M13: 14,349,428 km (0.112 R)
• M14: 15,288,454 km (0.095 R)
• M15: 15,675,314 km (0.088 R)
• M16: 16,875,388 km (0.045 R)
• M17: 18,569,135 km (0.083 R)
• M18: 22,374,007 km (0.094 R)
• M19: 25,570,166 km (0.119 R)
• M20: 26,855,062 km (0.088 R)
• M21: 30,355,951 km (0.096 R)
• M22: 34,700,423 km (0.043 R)
• M23: 35,257,077 km (0.112 R)
• M24: 38,842,040 km (0.089 R)
• M25: 39,805,301 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 637

Radius: 6.2

Gravity: 16.57 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 8.09 AU - 9.85 AU

Year: 17346 Days

Day: 21.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 94,134,408 km

• M1: 77,043 km (0.032 R)
• M2: 282,740 km (0.11 R)
• M3: 532,568 km (0.115 R)
• M4: 908,657 km (0.109 R)
• M5: 1,346,830 km (0.04 R)
• M6: 2,029,146 km (0.067 R)
• M7: 2,414,510 km (0.052 R)
• M8: 2,799,575 km (0.101 R)
• M9: 3,019,633 km (0.064 R)
• M10: 3,357,874 km (0.097 R)
• M11: 5,039,952 km (0.079 R)
• M12: 7,869,596 km (0.054 R)
• M13: 8,259,897 km (0.071 R)
• M14: 10,938,447 km (0.074 R)
• M15: 11,179,898 km (0.095 R)
• M16: 11,925,344 km (0.102 R)
• M17: 13,514,971 km (0.065 R)
• M18: 16,548,516 km (0.069 R)
• M19: 19,561,866 km (0.106 R)
• M20: 20,368,648 km (0.068 R)
• M21: 21,011,320 km (0.042 R)
• M22: 24,841,624 km (0.071 R)
• M23: 25,787,232 km (0.067 R)
• M24: 28,425,989 km (0.102 R)
• M25: 29,810,368 km (0.083 R)
• M26: 30,877,898 km (0.051 R)
• M27: 40,638,860 km (0.054 R)
• M28: 41,656,574 km (0.086 R)
• M29: 45,897,225 km (0.119 R)
• M30: 46,210,633 km (0.091 R)
• M31: 54,871,302 km (0.111 R)
• M32: 59,954,039 km (0.07 R)
• M33: 60,704,871 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 947.9

Radius: 4.4

Gravity: 48.96 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 10.31 AU - 11.59 AU

Year: 23396 Days

Day: 24.7 Hours

Environment

Temp: -240 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 94,134,408 km

• M1: 55,800 km (0.092 R)
• M2: 291,417 km (0.092 R)
• M3: 508,782 km (0.107 R)
• M4: 1,339,051 km (0.104 R)
• M5: 2,278,824 km (0.108 R)
• M6: 3,284,272 km (0.089 R)
• M7: 4,263,689 km (0.108 R)
• M8: 5,055,810 km (0.093 R)
• M9: 5,507,595 km (0.11 R)
• M10: 5,896,998 km (0.094 R)
• M11: 6,444,377 km (0.057 R)
• M12: 7,852,243 km (0.035 R)
• M13: 11,396,366 km (0.116 R)
• M14: 13,590,667 km (0.1 R)
• M15: 14,623,341 km (0.047 R)
• M16: 16,400,265 km (0.096 R)
• M17: 17,569,522 km (0.037 R)
• M18: 17,754,126 km (0.112 R)
• M19: 19,180,841 km (0.084 R)
• M20: 20,274,551 km (0.063 R)
• M21: 21,619,735 km (0.061 R)
• M22: 22,585,239 km (0.085 R)
• M23: 25,182,408 km (0.085 R)
• M24: 30,692,846 km (0.083 R)
• M25: 31,230,201 km (0.103 R)
• M26: 35,906,481 km (0.117 R)
• M27: 39,903,586 km (0.096 R)
• M28: 47,147,863 km (0.118 R)
• M29: 49,315,536 km (0.117 R)
• M30: 50,610,156 km (0.079 R)
• M31: 56,415,751 km (0.104 R)
• M32: 56,817,870 km (0.035 R)
• M33: 60,103,637 km (0.034 R)
• M34: 63,731,236 km (0.065 R)
• M35: 68,638,794 km (0.082 R)
• M36: 73,792,291 km (0.116 R)
• M37: 75,728,387 km (0.047 R)
• M38: 78,695,661 km (0.099 R)
• M39: 83,030,558 km (0.041 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: 415 - 14,045 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit