🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.78

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.62 AU - 0.62 AU

Year: 315 Days

Day: 43.9 Hours

Environment

Temp: -120 °C

Axial Tilt: 31.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.8

Radius: 12.4

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.71 AU - 0.83 AU

Year: 436 Days

Day: 15 Hours

Environment

Temp: -153 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 78,717,193 km

• M1: 154,235 km (0.083 R)
• M2: 552,914 km (0.112 R)
• M3: 993,779 km (0.087 R)
• M4: 1,388,119 km (0.112 R)
• M5: 1,846,038 km (0.06 R)
• M6: 2,396,408 km (0.078 R)
• M7: 3,489,819 km (0.117 R)
• M8: 3,941,306 km (0.085 R)
• M9: 4,351,802 km (0.107 R)
• M10: 4,833,657 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 804

Radius: 10.3

Gravity: 7.58 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.71 AU - 0.89 AU

Year: 462 Days

Day: 10.5 Hours

Environment

Temp: -136 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 78,717,193 km

• M1: 128,056 km (0.1 R)
• M2: 594,203 km (0.037 R)
• M3: 916,287 km (0.045 R)
• M4: 1,438,832 km (0.098 R)
• M5: 1,888,823 km (0.059 R)
• M6: 2,335,971 km (0.083 R)
• M7: 2,745,869 km (0.093 R)
• M8: 3,144,996 km (0.074 R)
• M9: 3,724,688 km (0.102 R)
• M10: 4,688,098 km (0.08 R)
• M11: 5,278,112 km (0.102 R)
• M12: 5,774,478 km (0.092 R)
• M13: 6,171,660 km (0.096 R)
• M14: 6,510,051 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270.3

Radius: 14.4

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.81 AU - 1.17 AU

Year: 636 Days

Day: 9.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 78,717,193 km

• M1: 179,817 km (0.026 R)
• M2: 869,164 km (0.044 R)
• M3: 1,422,077 km (0.047 R)
• M4: 1,884,185 km (0.067 R)
• M5: 2,421,391 km (0.101 R)
• M6: 3,223,984 km (0.091 R)
• M7: 4,198,464 km (0.109 R)
• M8: 4,784,439 km (0.085 R)
• M9: 5,361,438 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.8

Radius: 9

Gravity: 10.53 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.97 AU - 1.09 AU

Year: 675 Days

Day: 9.7 Hours

Environment

Temp: -152 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 78,717,193 km

• M1: 112,498 km (0.106 R)
• M2: 467,493 km (0.053 R)
• M3: 773,271 km (0.073 R)
• M4: 1,237,623 km (0.105 R)
• M5: 1,943,276 km (0.081 R)
• M6: 2,302,760 km (0.032 R)
• M7: 2,776,237 km (0.091 R)
• M8: 3,393,777 km (0.094 R)
• M9: 4,287,026 km (0.095 R)
• M10: 7,552,299 km (0.111 R)
• M11: 8,372,095 km (0.064 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 627.4

Radius: 14.9

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.65 AU - 2.07 AU

Year: 1638 Days

Day: 6 Hours

Environment

Temp: -182 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 78,717,193 km

• M1: 190,887 km (0.09 R)
• M2: 679,474 km (0.114 R)
• M3: 1,523,654 km (0.097 R)
• M4: 1,987,857 km (0.055 R)
• M5: 2,523,118 km (0.091 R)
• M6: 3,215,008 km (0.11 R)
• M7: 3,755,954 km (0.083 R)
• M8: 4,781,148 km (0.047 R)
• M9: 5,338,699 km (0.063 R)
• M10: 6,244,963 km (0.065 R)
• M11: 7,016,140 km (0.085 R)
• M12: 7,934,073 km (0.098 R)
• M13: 9,813,172 km (0.105 R)
• M14: 10,478,583 km (0.089 R)
• M15: 11,138,309 km (0.071 R)
• M16: 13,526,639 km (0.056 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.7

Radius: 14.3

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 3.57 AU - 5.47 AU

Year: 6205 Days

Day: 13.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 78,717,193 km

• M1: 179,368 km (0.096 R)
• M2: 652,396 km (0.113 R)
• M3: 1,456,784 km (0.059 R)
• M4: 2,509,205 km (0.041 R)
• M5: 3,454,065 km (0.116 R)
• M6: 5,434,292 km (0.095 R)
• M7: 7,892,933 km (0.086 R)
• M8: 9,303,492 km (0.103 R)
• M9: 11,701,396 km (0.12 R)
• M10: 14,892,318 km (0.103 R)
• M11: 15,425,635 km (0.088 R)
• M12: 19,522,971 km (0.113 R)
• M13: 25,875,196 km (0.054 R)
• M14: 27,522,418 km (0.095 R)
• M15: 33,183,052 km (0.05 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869.1

Radius: 9.3

Gravity: 10.05 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 4.37 AU - 5.73 AU

Year: 7327 Days

Day: 12.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 78,717,193 km

• M1: 115,639 km (0.044 R)
• M2: 467,493 km (0.045 R)
• M3: 846,425 km (0.103 R)
• M4: 1,262,606 km (0.103 R)
• M5: 1,696,889 km (0.105 R)
• M6: 2,228,859 km (0.114 R)
• M7: 2,747,365 km (0.091 R)
• M8: 3,165,491 km (0.076 R)
• M9: 3,625,654 km (0.087 R)
• M10: 4,623,322 km (0.084 R)
• M11: 4,943,761 km (0.103 R)
• M12: 6,738,636 km (0.081 R)
• M13: 7,189,973 km (0.045 R)
• M14: 8,364,615 km (0.113 R)
• M15: 9,946,912 km (0.109 R)
• M16: 15,233,102 km (0.093 R)
• M17: 16,952,880 km (0.095 R)
• M18: 18,652,012 km (0.066 R)
• M19: 19,998,692 km (0.117 R)
• M20: 20,617,579 km (0.08 R)
• M21: 21,812,267 km (0.044 R)
• M22: 26,496,625 km (0.056 R)
• M23: 27,243,119 km (0.097 R)
• M24: 31,498,430 km (0.077 R)
• M25: 36,063,110 km (0.109 R)
• M26: 36,864,356 km (0.106 R)
• M27: 38,029,724 km (0.085 R)
• M28: 40,188,870 km (0.044 R)
• M29: 40,556,432 km (0.062 R)
• M30: 41,923,756 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 197.7

Radius: 7.1

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 6.79 AU - 10.49 AU

Year: 16398 Days

Day: 22.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 78,717,193 km

• M1: 88,412 km (0.063 R)
• M2: 680,970 km (0.114 R)
• M3: 915,689 km (0.075 R)
• M4: 1,138,440 km (0.041 R)
• M5: 1,423,424 km (0.071 R)
• M6: 1,940,883 km (0.111 R)
• M7: 3,140,359 km (0.113 R)
• M8: 4,256,508 km (0.087 R)
• M9: 4,681,516 km (0.095 R)
• M10: 5,817,263 km (0.079 R)
• M11: 6,057,966 km (0.118 R)
• M12: 6,744,770 km (0.116 R)
• M13: 8,101,473 km (0.103 R)
• M14: 10,066,441 km (0.092 R)
• M15: 10,718,089 km (0.119 R)
• M16: 13,608,021 km (0.082 R)
• M17: 16,224,338 km (0.09 R)
• M18: 18,633,911 km (0.047 R)
• M19: 21,353,301 km (0.076 R)
• M20: 23,537,131 km (0.066 R)
• M21: 24,682,901 km (0.071 R)
• M22: 26,517,569 km (0.082 R)
• M23: 27,276,329 km (0.085 R)
• M24: 31,078,808 km (0.087 R)
• M25: 32,456,754 km (0.117 R)
• M26: 34,767,892 km (0.061 R)
• M27: 38,376,791 km (0.117 R)
• M28: 40,209,364 km (0.111 R)
• M29: 42,099,683 km (0.066 R)
• M30: 43,392,209 km (0.068 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 972.1

Radius: 4.7

Gravity: 44.01 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 8.83 AU - 9.33 AU

Year: 17666 Days

Day: 18.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 78,717,193 km

• M1: 318,643 km (0.1 R)
• M2: 954,434 km (0.059 R)
• M3: 2,119,203 km (0.075 R)
• M4: 2,424,533 km (0.091 R)
• M5: 3,402,155 km (0.067 R)
• M6: 3,667,541 km (0.11 R)
• M7: 3,820,879 km (0.117 R)
• M8: 5,130,459 km (0.077 R)
• M9: 6,139,497 km (0.096 R)
• M10: 9,256,069 km (0.094 R)
• M11: 9,949,904 km (0.065 R)
• M12: 12,103,515 km (0.109 R)
• M13: 12,307,267 km (0.116 R)
• M14: 12,861,827 km (0.062 R)
• M15: 13,074,106 km (0.049 R)
• M16: 16,049,608 km (0.077 R)
• M17: 16,213,268 km (0.088 R)
• M18: 18,355,060 km (0.118 R)
• M19: 18,534,279 km (0.065 R)
• M20: 24,035,291 km (0.067 R)
• M21: 26,350,618 km (0.069 R)
• M22: 28,931,031 km (0.1 R)
• M23: 33,242,592 km (0.087 R)
• M24: 33,776,357 km (0.098 R)
• M25: 38,108,562 km (0.074 R)
• M26: 41,706,241 km (0.088 R)
• M27: 44,872,181 km (0.092 R)
• M28: 46,513,568 km (0.115 R)
• M29: 46,846,573 km (0.104 R)
• M30: 48,364,692 km (0.073 R)
• M31: 54,396,479 km (0.058 R)
• M32: 68,353,960 km (0.109 R)
• M33: 69,433,458 km (0.059 R)
• M34: 71,626,413 km (0.115 R)
• M35: 75,001,640 km (0.074 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 439 - 17,187 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit