🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 550.4

Radius: 8.7

Gravity: 7.27 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.49 AU - 0.57 AU

Year: 262 Days

Day: 13.3 Hours

Environment

Temp: -139 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,107,929 km

• M1: 108,159 km (0.085 R)
• M2: 397,332 km (0.108 R)
• M3: 729,888 km (0.048 R)
• M4: 1,325,288 km (0.116 R)
• M5: 1,600,248 km (0.112 R)
• M6: 2,123,243 km (0.099 R)
• M7: 2,462,231 km (0.081 R)
• M8: 2,865,098 km (0.11 R)
• M9: 3,372,834 km (0.03 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 358.8

Radius: 13.7

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.33 AU - 2.07 AU

Year: 1503 Days

Day: 10.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 51,107,929 km

• M1: 170,392 km (0.08 R)
• M2: 608,115 km (0.082 R)
• M3: 1,143,825 km (0.113 R)
• M4: 2,109,928 km (0.117 R)
• M5: 2,587,445 km (0.112 R)
• M6: 4,167,647 km (0.055 R)
• M7: 4,984,900 km (0.112 R)
• M8: 5,452,394 km (0.117 R)
• M9: 5,991,993 km (0.045 R)
• M10: 6,939,247 km (0.095 R)
• M11: 7,854,337 km (0.101 R)
• M12: 8,435,674 km (0.108 R)
• M13: 9,045,585 km (0.112 R)
• M14: 10,510,447 km (0.052 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.2

Radius: 13.6

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 3.18 AU - 3.32 AU

Year: 3974 Days

Day: 5.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,107,929 km

• M1: 169,195 km (0.093 R)
• M2: 693,685 km (0.098 R)
• M3: 1,136,196 km (0.085 R)
• M4: 1,563,298 km (0.06 R)
• M5: 2,048,144 km (0.056 R)
• M6: 2,712,957 km (0.112 R)
• M7: 3,330,647 km (0.054 R)
• M8: 4,299,592 km (0.071 R)
• M9: 5,579,402 km (0.089 R)
• M10: 6,208,312 km (0.12 R)
• M11: 7,319,375 km (0.113 R)
• M12: 8,558,793 km (0.097 R)
• M13: 9,933,897 km (0.096 R)
• M14: 12,109,050 km (0.09 R)
• M15: 14,585,344 km (0.12 R)
• M16: 15,305,957 km (0.028 R)
• M17: 16,212,968 km (0.089 R)
• M18: 18,428,812 km (0.113 R)
• M19: 19,888,887 km (0.1 R)
• M20: 21,954,086 km (0.1 R)
• M21: 22,764,158 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.3

Radius: 12.9

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 3.23 AU - 3.27 AU

Year: 3974 Days

Day: 7.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 51,107,929 km

• M1: 161,267 km (0.079 R)
• M2: 583,731 km (0.072 R)
• M3: 1,094,458 km (0.119 R)
• M4: 1,716,486 km (0.105 R)
• M5: 2,675,708 km (0.11 R)
• M6: 3,358,472 km (0.08 R)
• M7: 6,435,401 km (0.118 R)
• M8: 7,001,031 km (0.11 R)
• M9: 7,697,259 km (0.089 R)
• M10: 9,008,335 km (0.104 R)
• M11: 10,382,990 km (0.074 R)
• M12: 11,545,515 km (0.118 R)
• M13: 15,293,091 km (0.117 R)
• M14: 15,925,741 km (0.068 R)
• M15: 16,411,634 km (0.066 R)
• M16: 18,103,138 km (0.11 R)
• M17: 19,970,418 km (0.116 R)
• M18: 20,535,749 km (0.062 R)
• M19: 21,436,477 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 257.2

Radius: 11.6

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 3.11 AU - 4.05 AU

Year: 4594 Days

Day: 7.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 51,107,929 km

• M1: 144,212 km (0.107 R)
• M2: 560,244 km (0.088 R)
• M3: 1,482,365 km (0.064 R)
• M4: 1,897,799 km (0.047 R)
• M5: 2,684,534 km (0.073 R)
• M6: 3,102,660 km (0.12 R)
• M7: 3,734,711 km (0.103 R)
• M8: 4,560,341 km (0.082 R)
• M9: 4,993,278 km (0.104 R)
• M10: 5,478,723 km (0.044 R)
• M11: 6,293,283 km (0.089 R)
• M12: 6,744,470 km (0.067 R)
• M13: 7,775,200 km (0.086 R)
• M14: 8,908,104 km (0.053 R)
• M15: 10,109,974 km (0.067 R)
• M16: 10,809,493 km (0.1 R)
• M17: 12,175,621 km (0.091 R)
• M18: 13,284,889 km (0.065 R)
• M19: 15,909,135 km (0.092 R)
• M20: 16,589,207 km (0.046 R)
• M21: 17,017,207 km (0.06 R)
• M22: 18,919,344 km (0.062 R)
• M23: 19,981,937 km (0.089 R)
• M24: 20,589,155 km (0.05 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 496.2

Radius: 8.9

Gravity: 6.26 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 3.77 AU - 4.69 AU

Year: 5901 Days

Day: 12.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 51,107,929 km

• M1: 110,702 km (0.117 R)
• M2: 390,151 km (0.118 R)
• M3: 672,143 km (0.086 R)
• M4: 975,229 km (0.111 R)
• M5: 1,426,715 km (0.091 R)
• M6: 1,886,878 km (0.114 R)
• M7: 2,362,150 km (0.109 R)
• M8: 3,303,869 km (0.057 R)
• M9: 5,268,987 km (0.068 R)
• M10: 5,967,609 km (0.076 R)
• M11: 7,619,768 km (0.095 R)
• M12: 9,024,342 km (0.071 R)
• M13: 13,148,306 km (0.113 R)
• M14: 14,101,993 km (0.095 R)
• M15: 14,818,866 km (0.117 R)
• M16: 16,146,397 km (0.113 R)
• M17: 17,931,100 km (0.092 R)
• M18: 18,510,792 km (0.077 R)
• M19: 19,102,900 km (0.1 R)
• M20: 20,117,772 km (0.078 R)
• M21: 21,598,342 km (0.116 R)
• M22: 24,933,627 km (0.045 R)
• M23: 28,077,725 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 340.9

Radius: 7.9

Gravity: 5.46 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 7.3 AU - 8.88 AU

Year: 15607 Days

Day: 23.8 Hours

Environment

Temp: -240 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 51,107,929 km

• M1: 98,435 km (0.088 R)
• M2: 821,143 km (0.104 R)
• M3: 1,291,478 km (0.075 R)
• M4: 1,849,329 km (0.102 R)
• M5: 2,192,955 km (0.059 R)
• M6: 3,218,149 km (0.117 R)
• M7: 3,588,255 km (0.094 R)
• M8: 5,599,598 km (0.117 R)
• M9: 5,881,739 km (0.083 R)
• M10: 7,106,348 km (0.11 R)
• M11: 8,175,075 km (0.088 R)
• M12: 10,102,344 km (0.088 R)
• M13: 12,551,710 km (0.049 R)
• M14: 13,977,827 km (0.047 R)
• M15: 14,630,373 km (0.117 R)
• M16: 15,508,811 km (0.083 R)
• M17: 16,208,181 km (0.111 R)
• M18: 19,779,232 km (0.068 R)
• M19: 20,269,913 km (0.099 R)
• M20: 22,138,540 km (0.092 R)
• M21: 22,756,529 km (0.076 R)
• M22: 24,773,557 km (0.077 R)
• M23: 25,439,567 km (0.107 R)
• M24: 30,548,334 km (0.106 R)
• M25: 30,984,412 km (0.101 R)
• M26: 31,980,584 km (0.102 R)
• M27: 33,572,605 km (0.104 R)
• M28: 35,455,892 km (0.074 R)
• M29: 43,009,238 km (0.114 R)
• M30: 48,698,445 km (0.079 R)
• M31: 50,195,322 km (0.106 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 316 - 15,198 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit