🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687.7

Radius: 14

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.55 AU - 0.79 AU

Year: 379 Days

Day: 7.6 Hours

Environment

Temp: -149 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,329,820 km

• M1: 174,132 km (0.096 R)
• M2: 626,366 km (0.056 R)
• M3: 1,113,607 km (0.092 R)
• M4: 1,679,685 km (0.047 R)
• M5: 2,500,379 km (0.118 R)
• M6: 3,019,633 km (0.084 R)
• M7: 4,159,718 km (0.084 R)
• M8: 4,664,162 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.1

Radius: 12.3

Gravity: 5.82 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.62 AU - 0.74 AU

Year: 387 Days

Day: 6 Hours

Environment

Temp: -150 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,329,820 km

• M1: 153,039 km (0.104 R)
• M2: 538,852 km (0.096 R)
• M3: 946,506 km (0.081 R)
• M4: 1,612,515 km (0.12 R)
• M5: 2,154,209 km (0.11 R)
• M6: 2,713,257 km (0.119 R)
• M7: 3,105,203 km (0.09 R)
• M8: 3,848,106 km (0.104 R)
• M9: 4,545,382 km (0.113 R)
• M10: 5,228,894 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 550.3

Radius: 8

Gravity: 8.6 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.66 AU - 0.78 AU

Year: 422 Days

Day: 5.2 Hours

Environment

Temp: -169 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,329,820 km

• M1: 99,632 km (0.03 R)
• M2: 426,055 km (0.088 R)
• M3: 738,265 km (0.118 R)
• M4: 1,117,496 km (0.087 R)
• M5: 1,368,521 km (0.111 R)
• M6: 1,802,654 km (0.025 R)
• M7: 3,434,767 km (0.086 R)
• M8: 4,773,070 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.3

Radius: 11.1

Gravity: 6.13 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.7 AU - 0.94 AU

Year: 513 Days

Day: 8.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,329,820 km

• M1: 138,079 km (0.102 R)
• M2: 708,346 km (0.06 R)
• M3: 1,112,410 km (0.077 R)
• M4: 1,506,002 km (0.116 R)
• M5: 2,133,565 km (0.083 R)
• M6: 2,884,097 km (0.059 R)
• M7: 3,501,937 km (0.085 R)
• M8: 4,278,499 km (0.098 R)
• M9: 5,100,240 km (0.1 R)
• M10: 5,896,101 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 213.9

Radius: 14

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.38 AU - 1.48 AU

Year: 1180 Days

Day: 6.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 44,329,820 km

• M1: 182,061 km (0.108 R)
• M2: 631,453 km (0.067 R)
• M3: 1,136,196 km (0.053 R)
• M4: 1,910,664 km (0.102 R)
• M5: 3,053,592 km (0.031 R)
• M6: 3,989,476 km (0.118 R)
• M7: 4,485,842 km (0.102 R)
• M8: 5,212,289 km (0.113 R)
• M9: 5,845,088 km (0.084 R)
• M10: 6,387,829 km (0.084 R)
• M11: 7,710,873 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 14.9

Radius: 8.8

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.35 AU - 1.75 AU

Year: 1332 Days

Day: 5.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 44,329,820 km

• M1: 109,506 km (0.062 R)
• M2: 514,467 km (0.094 R)
• M3: 1,664,725 km (0.101 R)
• M4: 2,389,676 km (0.108 R)
• M5: 2,758,884 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 309.4

Radius: 14.8

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.74 AU - 2.8 AU

Year: 3182 Days

Day: 9.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 44,329,820 km

• M1: 184,604 km (0.118 R)
• M2: 665,262 km (0.068 R)
• M3: 1,151,754 km (0.104 R)
• M4: 2,303,807 km (0.116 R)
• M5: 2,869,138 km (0.101 R)
• M6: 3,374,479 km (0.116 R)
• M7: 3,957,911 km (0.112 R)
• M8: 4,819,744 km (0.08 R)
• M9: 5,330,172 km (0.072 R)
• M10: 8,931,890 km (0.088 R)
• M11: 9,602,687 km (0.115 R)
• M12: 10,235,187 km (0.096 R)
• M13: 10,746,064 km (0.108 R)
• M14: 11,351,038 km (0.111 R)
• M15: 12,505,335 km (0.073 R)
• M16: 13,868,471 km (0.102 R)
• M17: 14,677,645 km (0.1 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 338.4

Radius: 14.9

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 2.5 AU - 3.5 AU

Year: 3587 Days

Day: 8.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 44,329,820 km

• M1: 185,501 km (0.117 R)
• M2: 841,638 km (0.048 R)
• M3: 1,388,567 km (0.113 R)
• M4: 2,189,963 km (0.106 R)
• M5: 2,727,768 km (0.077 R)
• M6: 4,277,003 km (0.098 R)
• M7: 4,921,920 km (0.113 R)
• M8: 6,823,009 km (0.084 R)
• M9: 7,892,634 km (0.073 R)
• M10: 8,370,150 km (0.078 R)
• M11: 8,867,115 km (0.045 R)
• M12: 10,178,041 km (0.04 R)
• M13: 13,404,867 km (0.075 R)
• M14: 15,619,663 km (0.061 R)
• M15: 16,997,310 km (0.113 R)
• M16: 18,845,592 km (0.065 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 681.3

Radius: 14

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 3.22 AU - 4.74 AU

Year: 5481 Days

Day: 11.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 44,329,820 km

• M1: 177,573 km (0.097 R)
• M2: 625,768 km (0.109 R)
• M3: 1,160,730 km (0.034 R)
• M4: 1,685,968 km (0.029 R)
• M5: 2,435,453 km (0.12 R)
• M6: 4,062,929 km (0.103 R)
• M7: 4,603,725 km (0.115 R)
• M8: 5,081,690 km (0.087 R)
• M9: 7,126,992 km (0.101 R)
• M10: 8,450,335 km (0.033 R)
• M11: 9,588,625 km (0.101 R)
• M12: 10,239,077 km (0.097 R)
• M13: 11,058,574 km (0.055 R)
• M14: 12,520,893 km (0.117 R)
• M15: 13,998,920 km (0.101 R)
• M16: 14,441,879 km (0.079 R)
• M17: 18,995,788 km (0.12 R)
• M18: 21,087,914 km (0.115 R)
• M19: 22,189,703 km (0.107 R)
• M20: 27,068,987 km (0.104 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 119

Radius: 4.5

Gravity: 5.88 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 8.08 AU - 11.62 AU

Year: 21339 Days

Day: 22.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 44,329,820 km

• M1: 59,540 km (0.037 R)
• M2: 233,971 km (0.066 R)
• M3: 502,200 km (0.067 R)
• M4: 843,134 km (0.102 R)
• M5: 4,921,770 km (0.053 R)
• M6: 8,255,110 km (0.058 R)
• M7: 8,428,942 km (0.118 R)
• M8: 9,241,708 km (0.105 R)
• M9: 9,523,849 km (0.063 R)
• M10: 10,006,751 km (0.101 R)
• M11: 12,327,313 km (0.109 R)
• M12: 20,585,116 km (0.086 R)
• M13: 33,972,480 km (0.104 R)
• M14: 34,869,917 km (0.111 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: 508 - 19,003 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit