🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 612

Radius: 10.2

Gravity: 5.88 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.7 AU - 0.82 AU

Year: 428 Days

Day: 5.7 Hours

Environment

Temp: -145 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 20,655,215 km

• M1: 126,859 km (0.113 R)
• M2: 451,786 km (0.086 R)
• M3: 939,325 km (0.087 R)
• M4: 1,355,357 km (0.108 R)
• M5: 1,809,536 km (0.115 R)
• M6: 2,178,594 km (0.07 R)
• M7: 2,550,045 km (0.105 R)
• M8: 2,910,875 km (0.101 R)
• M9: 3,271,705 km (0.1 R)
• M10: 3,774,354 km (0.075 R)
• M11: 4,164,356 km (0.116 R)
• M12: 4,509,927 km (0.064 R)
• M13: 5,564,592 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 476.1

Radius: 10.6

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.82 AU - 0.88 AU

Year: 506 Days

Day: 9.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 20,655,215 km

• M1: 132,095 km (0.043 R)
• M2: 473,776 km (0.057 R)
• M3: 862,881 km (0.088 R)
• M4: 1,345,782 km (0.081 R)
• M5: 3,250,313 km (0.083 R)
• M6: 3,593,490 km (0.067 R)
• M7: 4,053,354 km (0.092 R)
• M8: 4,395,485 km (0.111 R)
• M9: 4,816,752 km (0.104 R)
• M10: 5,458,378 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 645.3

Radius: 12.8

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.1 AU - 1.2 AU

Year: 796 Days

Day: 12.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 20,655,215 km

• M1: 159,172 km (0.09 R)
• M2: 665,561 km (0.109 R)
• M3: 1,121,236 km (0.09 R)
• M4: 1,833,621 km (0.051 R)
• M5: 2,314,429 km (0.084 R)
• M6: 3,112,832 km (0.072 R)
• M7: 3,590,947 km (0.098 R)
• M8: 6,017,126 km (0.086 R)
• M9: 6,894,517 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154

Radius: 10.3

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.55 AU - 1.73 AU

Year: 1356 Days

Day: 11.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 20,655,215 km

• M1: 128,205 km (0.098 R)
• M2: 508,184 km (0.102 R)
• M3: 888,761 km (0.096 R)
• M4: 1,650,364 km (0.074 R)
• M5: 2,224,820 km (0.114 R)
• M6: 2,881,704 km (0.073 R)
• M7: 3,488,473 km (0.114 R)
• M8: 3,900,615 km (0.111 R)
• M9: 4,253,516 km (0.048 R)
• M10: 4,923,116 km (0.061 R)
• M11: 5,336,306 km (0.106 R)
• M12: 5,866,480 km (0.068 R)
• M13: 6,232,696 km (0.074 R)
• M14: 6,717,094 km (0.089 R)
• M15: 7,161,250 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 835.2

Radius: 13.9

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.58 AU - 1.98 AU

Year: 1533 Days

Day: 10.8 Hours

Environment

Temp: -177 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 20,655,215 km

• M1: 172,935 km (0.105 R)
• M2: 617,390 km (0.065 R)
• M3: 1,239,269 km (0.119 R)
• M4: 1,716,785 km (0.093 R)
• M5: 2,164,532 km (0.117 R)
• M6: 2,857,619 km (0.095 R)
• M7: 3,399,163 km (0.07 R)
• M8: 3,849,901 km (0.118 R)
• M9: 4,397,878 km (0.09 R)
• M10: 5,651,808 km (0.052 R)
• M11: 6,362,547 km (0.058 R)
• M12: 7,293,345 km (0.118 R)
• M13: 8,612,798 km (0.042 R)
• M14: 9,393,849 km (0.119 R)
• M15: 10,670,966 km (0.115 R)
• M16: 12,368,303 km (0.114 R)
• M17: 13,322,289 km (0.098 R)
• M18: 13,901,233 km (0.026 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 622

Radius: 8.5

Gravity: 8.61 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.91 AU - 2.71 AU

Year: 2267 Days

Day: 11.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 20,655,215 km

• M1: 106,514 km (0.101 R)
• M2: 428,448 km (0.05 R)
• M3: 995,723 km (0.116 R)
• M4: 1,376,450 km (0.115 R)
• M5: 1,668,615 km (0.068 R)
• M6: 2,761,577 km (0.049 R)
• M7: 3,265,273 km (0.047 R)
• M8: 3,700,303 km (0.092 R)
• M9: 4,947,351 km (0.085 R)
• M10: 6,218,335 km (0.118 R)
• M11: 6,971,410 km (0.101 R)
• M12: 7,370,238 km (0.117 R)
• M13: 9,119,486 km (0.109 R)
• M14: 11,244,524 km (0.108 R)
• M15: 13,460,966 km (0.109 R)
• M16: 15,090,835 km (0.059 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 98.7

Radius: 11.9

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.56 AU - 2.62 AU

Year: 2691 Days

Day: 6.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 20,655,215 km

• M1: 148,401 km (0.076 R)
• M2: 701,315 km (0.115 R)
• M3: 2,829,793 km (0.099 R)
• M4: 3,380,762 km (0.105 R)
• M5: 3,812,951 km (0.108 R)
• M6: 5,220,218 km (0.098 R)
• M7: 5,925,721 km (0.059 R)
• M8: 6,739,534 km (0.093 R)
• M9: 7,751,862 km (0.105 R)
• M10: 9,114,400 km (0.084 R)
• M11: 10,351,574 km (0.116 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 895.9

Radius: 9.9

Gravity: 9.14 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 2.37 AU - 3.27 AU

Year: 3058 Days

Day: 12.1 Hours

Environment

Temp: -204 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 20,655,215 km

• M1: 127,757 km (0.062 R)
• M2: 450,290 km (0.112 R)
• M3: 775,067 km (0.114 R)
• M4: 1,432,100 km (0.105 R)
• M5: 1,991,746 km (0.113 R)
• M6: 2,367,237 km (0.117 R)
• M7: 2,691,864 km (0.071 R)
• M8: 4,301,986 km (0.094 R)
• M9: 6,013,086 km (0.091 R)
• M10: 6,713,354 km (0.068 R)
• M11: 7,083,459 km (0.108 R)
• M12: 7,597,926 km (0.096 R)
• M13: 9,330,419 km (0.119 R)
• M14: 9,752,884 km (0.094 R)
• M15: 10,677,698 km (0.088 R)
• M16: 11,268,609 km (0.106 R)
• M17: 13,077,696 km (0.119 R)
• M18: 15,124,794 km (0.113 R)
• M19: 15,762,380 km (0.105 R)
• M20: 18,493,139 km (0.069 R)
• M21: 19,160,645 km (0.087 R)
• M22: 21,791,174 km (0.107 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 149.2

Radius: 8.2

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 3.6 AU - 5.3 AU

Year: 6061 Days

Day: 12.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 20,655,215 km

• M1: 102,325 km (0.058 R)
• M2: 651,349 km (0.058 R)
• M3: 2,717,595 km (0.109 R)
• M4: 3,374,479 km (0.112 R)
• M5: 5,047,881 km (0.096 R)
• M6: 5,515,225 km (0.037 R)
• M7: 6,536,081 km (0.084 R)
• M8: 7,151,676 km (0.032 R)
• M9: 9,521,755 km (0.051 R)
• M10: 12,635,335 km (0.079 R)
• M11: 17,835,357 km (0.034 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 213 - 16,150 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit