🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.2

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.52 AU - 0.54 AU

Year: 245 Days

Day: 13.4 Hours

Environment

Temp: -115 °C

Axial Tilt: 1.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.77

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.5 AU - 0.61 AU

Year: 259 Days

Day: 24.8 Hours

Environment

Temp: -132 °C

Axial Tilt: 92.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 899

Radius: 13.4

Gravity: 5.01 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.63 AU - 0.95 AU

Year: 446 Days

Day: 14.7 Hours

Environment

Temp: -146 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 71,732,105 km

• M1: 166,652 km (0.119 R)
• M2: 707,598 km (0.085 R)
• M3: 1,186,012 km (0.081 R)
• M4: 2,137,754 km (0.094 R)
• M5: 2,959,345 km (0.058 R)
• M6: 3,781,535 km (0.105 R)
• M7: 4,376,785 km (0.074 R)
• M8: 4,828,570 km (0.099 R)
• M9: 6,115,262 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 744.7

Radius: 12.9

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.77 AU - 2.77 AU

Year: 2175 Days

Day: 14.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 71,732,105 km

• M1: 163,810 km (0.117 R)
• M2: 569,369 km (0.085 R)
• M3: 1,129,614 km (0.116 R)
• M4: 1,554,920 km (0.102 R)
• M5: 2,394,763 km (0.088 R)
• M6: 2,834,880 km (0.119 R)
• M7: 3,262,281 km (0.106 R)
• M8: 4,071,755 km (0.089 R)
• M9: 4,493,322 km (0.108 R)
• M10: 4,988,640 km (0.098 R)
• M11: 5,937,539 km (0.043 R)
• M12: 6,402,190 km (0.061 R)
• M13: 6,891,226 km (0.069 R)
• M14: 7,522,679 km (0.089 R)
• M15: 8,161,312 km (0.088 R)
• M16: 8,769,876 km (0.069 R)
• M17: 10,296,073 km (0.115 R)
• M18: 11,238,690 km (0.069 R)
• M19: 11,911,880 km (0.09 R)
• M20: 12,865,417 km (0.088 R)
• M21: 16,230,621 km (0.067 R)
• M22: 16,682,706 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89

Radius: 13.5

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 2.49 AU - 2.65 AU

Year: 2620 Days

Day: 12.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 144.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 71,732,105 km

• M1: 167,849 km (0.062 R)
• M2: 902,225 km (0.053 R)
• M3: 1,664,127 km (0.105 R)
• M4: 2,195,199 km (0.071 R)
• M5: 3,434,019 km (0.117 R)
• M6: 4,356,440 km (0.079 R)
• M7: 5,040,700 km (0.118 R)
• M8: 6,646,933 km (0.099 R)
• M9: 8,283,832 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 546.7

Radius: 12.8

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 4.32 AU - 5.18 AU

Year: 6582 Days

Day: 10.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 133.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,732,105 km

• M1: 159,172 km (0.067 R)
• M2: 734,226 km (0.05 R)
• M3: 1,373,458 km (0.092 R)
• M4: 2,286,155 km (0.093 R)
• M5: 4,002,940 km (0.109 R)
• M6: 4,867,316 km (0.055 R)
• M7: 5,699,828 km (0.09 R)
• M8: 7,355,727 km (0.074 R)
• M9: 7,834,440 km (0.11 R)
• M10: 9,698,580 km (0.091 R)
• M11: 10,230,101 km (0.079 R)
• M12: 11,159,104 km (0.1 R)
• M13: 12,919,422 km (0.101 R)
• M14: 14,285,400 km (0.033 R)
• M15: 16,794,007 km (0.076 R)
• M16: 18,152,654 km (0.074 R)
• M17: 19,029,597 km (0.12 R)
• M18: 21,161,367 km (0.119 R)
• M19: 23,685,232 km (0.116 R)
• M20: 24,084,360 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370.8

Radius: 14.6

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 4.88 AU - 7.06 AU

Year: 9275 Days

Day: 12.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,732,105 km

• M1: 182,061 km (0.097 R)
• M2: 752,328 km (0.119 R)
• M3: 1,240,914 km (0.053 R)
• M4: 2,194,152 km (0.039 R)
• M5: 3,461,396 km (0.086 R)
• M6: 4,584,576 km (0.077 R)
• M7: 5,085,729 km (0.096 R)
• M8: 6,003,063 km (0.033 R)
• M9: 6,814,183 km (0.069 R)
• M10: 9,207,450 km (0.095 R)
• M11: 10,055,969 km (0.109 R)
• M12: 13,525,742 km (0.096 R)
• M13: 18,548,191 km (0.069 R)
• M14: 23,451,411 km (0.103 R)
• M15: 24,109,193 km (0.049 R)
• M16: 26,420,480 km (0.095 R)
• M17: 36,380,856 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 498.9

Radius: 7.5

Gravity: 8.87 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 4.84 AU - 7.92 AU

Year: 10246 Days

Day: 22.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 46.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 71,732,105 km

• M1: 96,042 km (0.103 R)
• M2: 653,743 km (0.035 R)
• M3: 1,074,113 km (0.093 R)
• M4: 2,308,744 km (0.11 R)
• M5: 2,809,298 km (0.063 R)
• M6: 3,219,346 km (0.06 R)
• M7: 5,145,120 km (0.076 R)
• M8: 6,032,684 km (0.106 R)
• M9: 7,733,312 km (0.074 R)
• M10: 8,985,147 km (0.064 R)
• M11: 10,020,963 km (0.058 R)
• M12: 11,345,353 km (0.063 R)
• M13: 13,906,618 km (0.081 R)
• M14: 14,649,820 km (0.099 R)
• M15: 15,549,951 km (0.076 R)
• M16: 16,486,433 km (0.067 R)
• M17: 18,619,101 km (0.096 R)
• M18: 20,373,884 km (0.067 R)
• M19: 21,331,908 km (0.109 R)
• M20: 21,739,862 km (0.118 R)
• M21: 22,824,746 km (0.055 R)
• M22: 23,945,234 km (0.1 R)
• M23: 24,563,671 km (0.059 R)
• M24: 28,499,442 km (0.108 R)
• M25: 29,797,951 km (0.112 R)
• M26: 37,004,081 km (0.113 R)
• M27: 39,765,358 km (0.113 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 894

Radius: 7.1

Gravity: 17.73 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 7.31 AU - 9.45 AU

Year: 15424 Days

Day: 19.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 71,732,105 km

• M1: 92,751 km (0.05 R)
• M2: 647,011 km (0.092 R)
• M3: 1,315,863 km (0.113 R)
• M4: 1,704,967 km (0.115 R)
• M5: 2,011,942 km (0.116 R)
• M6: 2,737,491 km (0.106 R)
• M7: 3,239,243 km (0.09 R)
• M8: 4,136,232 km (0.081 R)
• M9: 4,524,588 km (0.092 R)
• M10: 4,972,484 km (0.08 R)
• M11: 5,525,547 km (0.07 R)
• M12: 6,037,471 km (0.111 R)
• M13: 7,020,030 km (0.093 R)
• M14: 7,957,709 km (0.113 R)
• M15: 9,795,369 km (0.095 R)
• M16: 10,136,602 km (0.118 R)
• M17: 10,603,946 km (0.099 R)
• M18: 10,963,729 km (0.03 R)
• M19: 11,834,987 km (0.078 R)
• M20: 14,873,918 km (0.084 R)
• M21: 15,477,246 km (0.117 R)
• M22: 16,175,569 km (0.102 R)
• M23: 16,894,536 km (0.104 R)
• M24: 18,055,117 km (0.1 R)
• M25: 21,758,711 km (0.055 R)
• M26: 23,940,596 km (0.063 R)
• M27: 26,923,428 km (0.116 R)
• M28: 30,025,639 km (0.096 R)
• M29: 33,103,316 km (0.078 R)
• M30: 39,877,407 km (0.077 R)
• M31: 44,046,699 km (0.101 R)
• M32: 44,976,450 km (0.095 R)
• M33: 46,555,157 km (0.113 R)
• M34: 47,519,764 km (0.108 R)
• M35: 48,333,726 km (0.114 R)
• M36: 50,493,769 km (0.059 R)
• M37: 57,174,960 km (0.119 R)
• M38: 63,435,331 km (0.038 R)
• M39: 65,018,825 km (0.109 R)
• M40: 65,619,460 km (0.098 R)
• M41: 67,853,256 km (0.07 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 708.3

Radius: 6.1

Gravity: 19.04 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 7.93 AU - 10.65 AU

Year: 18003 Days

Day: 24.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 71,732,105 km

• M1: 76,145 km (0.113 R)
• M2: 353,201 km (0.098 R)
• M3: 575,204 km (0.103 R)
• M4: 1,116,748 km (0.047 R)
• M5: 2,069,238 km (0.099 R)
• M6: 2,794,039 km (0.112 R)
• M7: 4,359,282 km (0.097 R)
• M8: 5,050,723 km (0.112 R)
• M9: 5,933,500 km (0.096 R)
• M10: 8,250,771 km (0.114 R)
• M11: 9,414,344 km (0.084 R)
• M12: 10,926,030 km (0.067 R)
• M13: 11,234,202 km (0.089 R)
• M14: 11,868,048 km (0.09 R)
• M15: 13,486,248 km (0.103 R)
• M16: 15,865,303 km (0.074 R)
• M17: 17,738,568 km (0.06 R)
• M18: 20,489,972 km (0.09 R)
• M19: 24,339,274 km (0.104 R)
• M20: 39,296,369 km (0.055 R)
• M21: 41,493,812 km (0.096 R)
• M22: 50,932,540 km (0.037 R)
• M23: 52,313,328 km (0.119 R)
• M24: 63,671,098 km (0.102 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: 550 - 16,067 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit