🌌 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 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 126.9

Radius: 13.2

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.42 AU - 0.62 AU

Year: 259 Days

Day: 11.2 Hours

Environment

Temp: -134 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 70,812,742 km

• M1: 164,109 km (0.058 R)
• M2: 689,796 km (0.109 R)
• M3: 1,111,063 km (0.048 R)
• M4: 1,723,367 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 571.7

Radius: 9

Gravity: 7.06 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.56 AU - 0.78 AU

Year: 379 Days

Day: 13.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,812,742 km

• M1: 111,899 km (0.059 R)
• M2: 493,972 km (0.093 R)
• M3: 783,743 km (0.114 R)
• M4: 1,230,293 km (0.089 R)
• M5: 1,575,266 km (0.05 R)
• M6: 1,862,942 km (0.101 R)
• M7: 2,584,004 km (0.096 R)
• M8: 3,739,498 km (0.115 R)
• M9: 4,088,659 km (0.12 R)
• M10: 4,405,208 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.9

Radius: 13.9

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.19 AU - 1.45 AU

Year: 1047 Days

Day: 10.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,812,742 km

• M1: 193,729 km (0.078 R)
• M2: 704,008 km (0.098 R)
• M3: 1,539,512 km (0.085 R)
• M4: 2,377,409 km (0.102 R)
• M5: 2,877,665 km (0.109 R)
• M6: 3,516,148 km (0.092 R)
• M7: 4,939,722 km (0.104 R)
• M8: 5,958,034 km (0.047 R)
• M9: 7,156,613 km (0.119 R)
• M10: 8,089,654 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.6

Radius: 11.2

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 1.44 AU - 1.64 AU

Year: 1319 Days

Day: 9.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 70,812,742 km

• M1: 139,276 km (0.063 R)
• M2: 730,038 km (0.099 R)
• M3: 1,158,636 km (0.105 R)
• M4: 1,611,468 km (0.077 R)
• M5: 2,739,287 km (0.098 R)
• M6: 3,316,286 km (0.085 R)
• M7: 4,789,077 km (0.106 R)
• M8: 5,482,612 km (0.074 R)
• M9: 6,424,780 km (0.083 R)
• M10: 7,395,221 km (0.081 R)
• M11: 8,294,604 km (0.12 R)
• M12: 9,088,819 km (0.093 R)
• M13: 9,625,576 km (0.035 R)
• M14: 10,026,348 km (0.105 R)
• M15: 10,438,341 km (0.107 R)
• M16: 11,060,668 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.1

Radius: 8.9

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.61 AU - 1.97 AU

Year: 1653 Days

Day: 8.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,812,742 km

• M1: 111,002 km (0.089 R)
• M2: 387,907 km (0.072 R)
• M3: 691,142 km (0.097 R)
• M4: 970,890 km (0.075 R)
• M5: 1,391,410 km (0.11 R)
• M6: 1,690,456 km (0.082 R)
• M7: 2,204,624 km (0.079 R)
• M8: 2,541,369 km (0.092 R)
• M9: 2,979,990 km (0.117 R)
• M10: 3,575,389 km (0.075 R)
• M11: 4,300,340 km (0.057 R)
• M12: 4,754,071 km (0.115 R)
• M13: 5,319,999 km (0.074 R)
• M14: 5,651,060 km (0.09 R)
• M15: 6,539,521 km (0.067 R)
• M16: 6,871,629 km (0.099 R)
• M17: 10,874,120 km (0.096 R)
• M18: 11,206,376 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381.9

Radius: 10.1

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 2.47 AU - 2.89 AU

Year: 3028 Days

Day: 7.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 70,812,742 km

• M1: 131,347 km (0.04 R)
• M2: 583,731 km (0.103 R)
• M3: 1,133,653 km (0.093 R)
• M4: 1,462,618 km (0.029 R)
• M5: 1,936,395 km (0.105 R)
• M6: 2,255,188 km (0.047 R)
• M7: 2,580,862 km (0.115 R)
• M8: 2,938,252 km (0.116 R)
• M9: 3,311,798 km (0.111 R)
• M10: 4,155,081 km (0.076 R)
• M11: 5,878,448 km (0.115 R)
• M12: 7,788,664 km (0.099 R)
• M13: 8,127,652 km (0.047 R)
• M14: 10,974,201 km (0.091 R)
• M15: 12,122,963 km (0.056 R)
• M16: 14,288,990 km (0.065 R)
• M17: 15,223,528 km (0.076 R)
• M18: 16,549,115 km (0.071 R)
• M19: 16,905,158 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 936.7

Radius: 13.7

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 2.68 AU - 2.78 AU

Year: 3114 Days

Day: 8.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 70,812,742 km

• M1: 171,888 km (0.117 R)
• M2: 664,215 km (0.087 R)
• M3: 1,621,192 km (0.114 R)
• M4: 2,563,659 km (0.094 R)
• M5: 3,096,227 km (0.072 R)
• M6: 3,702,398 km (0.057 R)
• M7: 4,164,356 km (0.104 R)
• M8: 4,617,787 km (0.116 R)
• M9: 5,054,164 km (0.1 R)
• M10: 5,706,261 km (0.103 R)
• M11: 6,562,410 km (0.091 R)
• M12: 7,275,543 km (0.082 R)
• M13: 8,212,774 km (0.039 R)
• M14: 8,783,639 km (0.074 R)
• M15: 10,908,677 km (0.106 R)
• M16: 12,503,689 km (0.1 R)
• M17: 13,650,207 km (0.08 R)
• M18: 16,262,635 km (0.111 R)
• M19: 16,766,181 km (0.069 R)
• M20: 17,569,971 km (0.106 R)
• M21: 18,279,214 km (0.101 R)
• M22: 18,762,565 km (0.08 R)
• M23: 19,503,822 km (0.094 R)
• M24: 24,078,076 km (0.066 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 433.5

Radius: 9.1

Gravity: 5.23 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 2.66 AU - 2.8 AU

Year: 3114 Days

Day: 5.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 70,812,742 km

• M1: 113,844 km (0.112 R)
• M2: 432,188 km (0.089 R)
• M3: 1,049,728 km (0.086 R)
• M4: 1,802,804 km (0.088 R)
• M5: 2,165,429 km (0.102 R)
• M6: 2,533,290 km (0.094 R)
• M7: 3,431,027 km (0.103 R)
• M8: 4,315,899 km (0.057 R)
• M9: 5,393,751 km (0.118 R)
• M10: 6,924,437 km (0.085 R)
• M11: 9,099,440 km (0.059 R)
• M12: 10,025,900 km (0.099 R)
• M13: 10,741,875 km (0.12 R)
• M14: 11,899,613 km (0.071 R)
• M15: 12,233,216 km (0.099 R)
• M16: 13,050,469 km (0.069 R)
• M17: 13,450,195 km (0.09 R)
• M18: 14,367,529 km (0.07 R)
• M19: 14,985,817 km (0.106 R)
• M20: 15,375,071 km (0.094 R)
• M21: 16,738,655 km (0.114 R)
• M22: 17,583,883 km (0.112 R)
• M23: 17,962,516 km (0.111 R)
• M24: 18,346,533 km (0.034 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 704

Radius: 3.2

Gravity: 68.75 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 8.58 AU - 9.4 AU

Year: 18606 Days

Day: 20.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 70,812,742 km

• M1: 40,990 km (0.08 R)
• M2: 148,102 km (0.075 R)
• M3: 495,319 km (0.119 R)
• M4: 633,697 km (0.044 R)
• M5: 1,768,696 km (0.093 R)
• M6: 3,367,448 km (0.031 R)
• M7: 8,964,054 km (0.066 R)
• M8: 10,683,233 km (0.111 R)
• M9: 12,009,567 km (0.085 R)
• M10: 12,407,797 km (0.09 R)
• M11: 13,021,597 km (0.099 R)
• M12: 14,309,336 km (0.117 R)
• M13: 15,445,232 km (0.043 R)
• M14: 15,995,453 km (0.089 R)
• M15: 16,968,737 km (0.117 R)
• M16: 17,301,742 km (0.103 R)
• M17: 19,573,385 km (0.057 R)
• M18: 21,937,780 km (0.117 R)
• M19: 23,546,705 km (0.093 R)
• M20: 26,326,383 km (0.091 R)
• M21: 28,490,615 km (0.109 R)
• M22: 28,607,601 km (0.105 R)
• M23: 31,141,041 km (0.108 R)
• M24: 31,514,736 km (0.045 R)
• M25: 41,555,895 km (0.09 R)
• M26: 43,542,106 km (0.065 R)
• M27: 45,271,607 km (0.077 R)
• M28: 48,699,343 km (0.071 R)
• M29: 50,561,986 km (0.068 R)
• M30: 53,000,581 km (0.118 R)
• M31: 54,248,676 km (0.061 R)
• M32: 56,249,547 km (0.096 R)
• M33: 65,150,172 km (0.1 R)
• M34: 70,359,469 km (0.103 R)
• M35: 72,300,651 km (0.098 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 426.7

Radius: 6.2

Gravity: 11.1 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 10.01 AU - 10.55 AU

Year: 22751 Days

Day: 16.8 Hours

Environment

Temp: -244 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,812,742 km

• M1: 232,475 km (0.061 R)
• M2: 436,975 km (0.102 R)
• M3: 770,279 km (0.082 R)
• M4: 1,820,157 km (0.054 R)
• M5: 10,787,802 km (0.092 R)
• M6: 11,717,852 km (0.112 R)
• M7: 11,974,562 km (0.1 R)
• M8: 14,238,426 km (0.11 R)
• M9: 14,902,192 km (0.073 R)
• M10: 16,450,679 km (0.106 R)
• M11: 20,413,377 km (0.114 R)
• M12: 21,638,883 km (0.117 R)
• M13: 24,235,603 km (0.09 R)
• M14: 29,443,703 km (0.072 R)
• M15: 31,251,145 km (0.109 R)
• M16: 35,085,189 km (0.103 R)
• M17: 39,078,405 km (0.097 R)
• M18: 55,518,163 km (0.095 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 267 - 11,106 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit