🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.42 AU - 0.68 AU

Year: 268 Days

Day: 22.9 Hours

Environment

Temp: -121 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,101,573 km

• M1: 34,408 km (0.041 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 434.9

Radius: 10.5

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.78 AU - 0.9 AU

Year: 505 Days

Day: 8.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 70,101,573 km

• M1: 130,599 km (0.12 R)
• M2: 589,416 km (0.045 R)
• M3: 1,348,176 km (0.092 R)
• M4: 1,952,551 km (0.111 R)
• M5: 3,118,068 km (0.055 R)
• M6: 3,603,364 km (0.042 R)
• M7: 4,770,676 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740.6

Radius: 12.8

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.88 AU - 1.1 AU

Year: 646 Days

Day: 8.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 70,101,573 km

• M1: 159,471 km (0.045 R)
• M2: 568,622 km (0.116 R)
• M3: 985,850 km (0.071 R)
• M4: 1,429,707 km (0.061 R)
• M5: 2,036,326 km (0.084 R)
• M6: 2,867,791 km (0.033 R)
• M7: 3,407,989 km (0.112 R)
• M8: 3,957,612 km (0.095 R)
• M9: 4,809,721 km (0.098 R)
• M10: 5,594,960 km (0.111 R)
• M11: 6,125,584 km (0.103 R)
• M12: 7,113,528 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 726.8

Radius: 14.7

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.77 AU - 1.29 AU

Year: 686 Days

Day: 9 Hours

Environment

Temp: -155 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,101,573 km

• M1: 182,809 km (0.044 R)
• M2: 738,714 km (0.057 R)
• M3: 1,354,908 km (0.105 R)
• M4: 2,506,064 km (0.118 R)
• M5: 3,146,941 km (0.057 R)
• M6: 4,581,884 km (0.073 R)
• M7: 5,733,488 km (0.096 R)
• M8: 6,398,151 km (0.029 R)
• M9: 7,135,669 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 684

Radius: 12.3

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.58 AU - 1.68 AU

Year: 1365 Days

Day: 5.7 Hours

Environment

Temp: -182 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 70,101,573 km

• M1: 153,039 km (0.031 R)
• M2: 603,927 km (0.116 R)
• M3: 1,017,864 km (0.103 R)
• M4: 1,431,053 km (0.118 R)
• M5: 2,206,868 km (0.077 R)
• M6: 2,743,475 km (0.119 R)
• M7: 3,396,620 km (0.116 R)
• M8: 4,420,617 km (0.101 R)
• M9: 5,279,608 km (0.04 R)
• M10: 5,882,188 km (0.112 R)
• M11: 6,482,375 km (0.039 R)
• M12: 7,805,568 km (0.104 R)
• M13: 8,218,907 km (0.076 R)
• M14: 12,219,154 km (0.078 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 646.9

Radius: 12

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 2.91 AU - 3.43 AU

Year: 3703 Days

Day: 8.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 70,101,573 km

• M1: 149,299 km (0.098 R)
• M2: 553,512 km (0.099 R)
• M3: 999,613 km (0.071 R)
• M4: 1,430,305 km (0.103 R)
• M5: 2,065,348 km (0.118 R)
• M6: 3,327,206 km (0.106 R)
• M7: 3,986,334 km (0.042 R)
• M8: 4,754,669 km (0.099 R)
• M9: 5,328,676 km (0.095 R)
• M10: 6,146,528 km (0.093 R)
• M11: 8,100,426 km (0.031 R)
• M12: 9,069,371 km (0.076 R)
• M13: 9,447,405 km (0.069 R)
• M14: 9,994,185 km (0.097 R)
• M15: 11,023,119 km (0.08 R)
• M16: 11,762,282 km (0.096 R)
• M17: 12,720,756 km (0.12 R)
• M18: 15,159,051 km (0.05 R)
• M19: 16,238,400 km (0.073 R)
• M20: 17,717,474 km (0.117 R)
• M21: 18,309,583 km (0.115 R)
• M22: 19,099,011 km (0.116 R)
• M23: 21,205,199 km (0.1 R)
• M24: 22,761,765 km (0.105 R)
• M25: 23,674,461 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.4

Radius: 12.2

Gravity: 5.57 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 3.09 AU - 3.69 AU

Year: 4095 Days

Day: 13.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 70,101,573 km

• M1: 151,842 km (0.047 R)
• M2: 923,468 km (0.112 R)
• M3: 3,824,918 km (0.098 R)
• M4: 4,762,747 km (0.118 R)
• M5: 5,286,190 km (0.068 R)
• M6: 5,675,294 km (0.091 R)
• M7: 6,325,596 km (0.048 R)
• M8: 8,243,740 km (0.115 R)
• M9: 9,196,978 km (0.12 R)
• M10: 9,598,349 km (0.059 R)
• M11: 11,925,045 km (0.114 R)
• M12: 12,993,173 km (0.114 R)
• M13: 14,071,325 km (0.095 R)
• M14: 14,768,152 km (0.107 R)
• M15: 15,543,967 km (0.081 R)
• M16: 17,117,138 km (0.08 R)
• M17: 18,097,902 km (0.108 R)
• M18: 20,782,435 km (0.114 R)
• M19: 21,475,522 km (0.032 R)
• M20: 22,471,545 km (0.12 R)
• M21: 25,096,389 km (0.095 R)
• M22: 27,752,499 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 497.7

Radius: 5.5

Gravity: 16.45 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 5.97 AU - 9.71 AU

Year: 14401 Days

Day: 16.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 70,101,573 km

• M1: 68,366 km (0.089 R)
• M2: 362,476 km (0.055 R)
• M3: 621,430 km (0.08 R)
• M4: 946,655 km (0.038 R)
• M5: 1,379,442 km (0.096 R)
• M6: 1,816,717 km (0.107 R)
• M7: 2,005,060 km (0.08 R)
• M8: 2,341,805 km (0.108 R)
• M9: 2,607,790 km (0.094 R)
• M10: 2,848,343 km (0.102 R)
• M11: 3,056,284 km (0.11 R)
• M12: 4,222,400 km (0.062 R)
• M13: 4,937,478 km (0.091 R)
• M14: 5,238,169 km (0.106 R)
• M15: 5,410,506 km (0.026 R)
• M16: 5,622,337 km (0.072 R)
• M17: 8,567,320 km (0.112 R)
• M18: 12,959,664 km (0.078 R)
• M19: 13,596,651 km (0.081 R)
• M20: 15,350,387 km (0.097 R)
• M21: 16,135,776 km (0.113 R)
• M22: 16,501,543 km (0.12 R)
• M23: 20,896,878 km (0.118 R)
• M24: 25,026,976 km (0.033 R)
• M25: 28,168,681 km (0.082 R)
• M26: 29,452,230 km (0.108 R)
• M27: 30,108,367 km (0.08 R)
• M28: 31,677,349 km (0.053 R)
• M29: 36,835,932 km (0.119 R)
• M30: 39,020,809 km (0.11 R)
• M31: 39,283,503 km (0.106 R)
• M32: 48,777,583 km (0.099 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 565.6

Radius: 6.6

Gravity: 12.98 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 8.56 AU - 9.88 AU

Year: 18366 Days

Day: 21.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 70,101,573 km

• M1: 82,129 km (0.116 R)
• M2: 494,870 km (0.098 R)
• M3: 733,030 km (0.074 R)
• M4: 1,741,918 km (0.036 R)
• M5: 2,050,089 km (0.096 R)
• M6: 2,969,967 km (0.109 R)
• M7: 3,549,509 km (0.101 R)
• M8: 5,036,811 km (0.099 R)
• M9: 6,179,140 km (0.119 R)
• M10: 7,718,951 km (0.072 R)
• M11: 10,512,542 km (0.092 R)
• M12: 11,227,619 km (0.074 R)
• M13: 11,534,893 km (0.117 R)
• M14: 13,775,570 km (0.079 R)
• M15: 14,486,160 km (0.109 R)
• M16: 15,826,408 km (0.073 R)
• M17: 16,844,421 km (0.053 R)
• M18: 17,085,423 km (0.102 R)
• M19: 19,446,826 km (0.108 R)
• M20: 23,284,609 km (0.099 R)
• M21: 23,784,715 km (0.092 R)
• M22: 25,644,217 km (0.1 R)
• M23: 27,266,157 km (0.105 R)
• M24: 32,169,526 km (0.088 R)
• M25: 35,350,575 km (0.102 R)
• M26: 45,516,050 km (0.11 R)
• M27: 47,887,326 km (0.093 R)
• M28: 54,611,301 km (0.117 R)
• M29: 57,105,696 km (0.049 R)
• M30: 62,512,313 km (0.039 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 522.6

Radius: 6.5

Gravity: 12.37 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 8.67 AU - 11.01 AU

Year: 20249 Days

Day: 24.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 70,101,573 km

• M1: 81,232 km (0.056 R)
• M2: 524,191 km (0.087 R)
• M3: 766,988 km (0.117 R)
• M4: 1,933,852 km (0.065 R)
• M5: 2,574,430 km (0.079 R)
• M6: 2,857,319 km (0.059 R)
• M7: 4,836,499 km (0.035 R)
• M8: 5,609,172 km (0.095 R)
• M9: 5,964,467 km (0.078 R)
• M10: 6,940,892 km (0.09 R)
• M11: 10,155,302 km (0.105 R)
• M12: 14,315,918 km (0.045 R)
• M13: 19,847,748 km (0.066 R)
• M14: 35,797,125 km (0.118 R)
• M15: 38,688,104 km (0.107 R)
• M16: 38,971,143 km (0.099 R)
• M17: 39,685,174 km (0.107 R)
• M18: 40,117,811 km (0.114 R)
• M19: 42,779,456 km (0.096 R)
• M20: 43,234,233 km (0.098 R)
• M21: 48,616,017 km (0.107 R)
• M22: 48,945,731 km (0.083 R)
• M23: 55,678,831 km (0.061 R)
• M24: 60,876,460 km (0.079 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 491 - 15,921 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit