🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730.1

Radius: 12.6

Gravity: 4.6 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.7 AU - 0.88 AU

Year: 468 Days

Day: 14.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 9,870,818 km

• M1: 157,078 km (0.112 R)
• M2: 550,819 km (0.032 R)
• M3: 1,257,968 km (0.114 R)
• M4: 1,767,798 km (0.101 R)
• M5: 2,177,098 km (0.081 R)
• M6: 2,680,943 km (0.102 R)
• M7: 3,939,959 km (0.077 R)
• M8: 4,530,422 km (0.073 R)
• M9: 5,114,901 km (0.107 R)
• M10: 5,819,058 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933.3

Radius: 13

Gravity: 5.52 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1 AU - 1.44 AU

Year: 899 Days

Day: 14.4 Hours

Environment

Temp: -182 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 9,870,818 km

• M1: 162,014 km (0.112 R)
• M2: 885,320 km (0.082 R)
• M3: 1,294,022 km (0.104 R)
• M4: 1,927,569 km (0.06 R)
• M5: 2,440,839 km (0.03 R)
• M6: 3,058,379 km (0.105 R)
• M7: 3,732,168 km (0.096 R)
• M8: 4,364,667 km (0.045 R)
• M9: 4,899,031 km (0.093 R)
• M10: 6,208,461 km (0.084 R)
• M11: 6,677,899 km (0.069 R)
• M12: 7,841,023 km (0.088 R)
• M13: 8,257,503 km (0.084 R)
• M14: 9,392,652 km (0.074 R)
• M15: 10,379,848 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 594.3

Radius: 11

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 2.54 AU - 3.22 AU

Year: 3259 Days

Day: 11.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 9,870,818 km

• M1: 136,882 km (0.061 R)
• M2: 497,712 km (0.075 R)
• M3: 1,035,666 km (0.082 R)
• M4: 1,555,519 km (0.12 R)
• M5: 2,621,703 km (0.099 R)
• M6: 3,696,713 km (0.048 R)
• M7: 4,269,673 km (0.082 R)
• M8: 4,996,270 km (0.111 R)
• M9: 5,465,409 km (0.099 R)
• M10: 5,856,308 km (0.12 R)
• M11: 6,210,406 km (0.064 R)
• M12: 7,266,118 km (0.078 R)
• M13: 7,772,208 km (0.108 R)
• M14: 8,644,663 km (0.075 R)
• M15: 9,768,741 km (0.072 R)
• M16: 12,934,082 km (0.093 R)
• M17: 15,612,632 km (0.063 R)
• M18: 16,835,296 km (0.11 R)
• M19: 17,442,214 km (0.081 R)
• M20: 18,524,555 km (0.082 R)
• M21: 20,077,680 km (0.087 R)
• M22: 21,139,077 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.1

Radius: 13.9

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 3.08 AU - 3.1 AU

Year: 3622 Days

Day: 12 Hours

Environment

Temp: -209 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 9,870,818 km

• M1: 202,256 km (0.09 R)
• M2: 928,105 km (0.097 R)
• M3: 1,715,738 km (0.106 R)
• M4: 2,332,530 km (0.109 R)
• M5: 3,155,767 km (0.069 R)
• M6: 12,243,090 km (0.11 R)
• M7: 13,982,315 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 312.8

Radius: 10.6

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 3.6 AU - 3.66 AU

Year: 4612 Days

Day: 13.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 9,870,818 km

• M1: 131,945 km (0.079 R)
• M2: 617,839 km (0.114 R)
• M3: 2,048,892 km (0.118 R)
• M4: 2,708,619 km (0.11 R)
• M5: 3,105,951 km (0.047 R)
• M6: 3,542,328 km (0.118 R)
• M7: 4,166,600 km (0.056 R)
• M8: 5,427,710 km (0.059 R)
• M9: 6,230,303 km (0.114 R)
• M10: 6,572,732 km (0.116 R)
• M11: 7,937,663 km (0.092 R)
• M12: 8,792,764 km (0.116 R)
• M13: 9,746,152 km (0.081 R)
• M14: 10,287,397 km (0.083 R)
• M15: 11,642,454 km (0.114 R)
• M16: 12,251,916 km (0.115 R)
• M17: 12,882,621 km (0.075 R)
• M18: 14,955,748 km (0.11 R)
• M19: 16,045,120 km (0.118 R)
• M20: 18,091,768 km (0.118 R)
• M21: 21,383,071 km (0.075 R)
• M22: 21,837,100 km (0.061 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 606.7

Radius: 14.5

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 3.71 AU - 4.37 AU

Year: 5415 Days

Day: 14.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 9,870,818 km

• M1: 180,565 km (0.093 R)
• M2: 678,576 km (0.09 R)
• M3: 2,895,616 km (0.056 R)
• M4: 3,627,300 km (0.054 R)
• M5: 7,602,564 km (0.079 R)
• M6: 10,298,317 km (0.095 R)
• M7: 12,055,644 km (0.119 R)
• M8: 13,005,889 km (0.12 R)
• M9: 14,113,662 km (0.118 R)
• M10: 16,217,456 km (0.079 R)
• M11: 17,065,676 km (0.073 R)
• M12: 18,393,058 km (0.063 R)
• M13: 23,776,487 km (0.084 R)
• M14: 28,969,478 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.2

Radius: 14.6

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 3.36 AU - 4.8 AU

Year: 5496 Days

Day: 5.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 9,870,818 km

• M1: 182,659 km (0.102 R)
• M2: 714,779 km (0.06 R)
• M3: 1,176,288 km (0.086 R)
• M4: 2,339,412 km (0.086 R)
• M5: 4,867,915 km (0.118 R)
• M6: 6,425,677 km (0.099 R)
• M7: 7,948,135 km (0.094 R)
• M8: 8,452,728 km (0.056 R)
• M9: 9,398,337 km (0.12 R)
• M10: 10,367,731 km (0.083 R)
• M11: 11,113,925 km (0.116 R)
• M12: 12,713,874 km (0.067 R)
• M13: 15,574,335 km (0.111 R)
• M14: 16,742,096 km (0.101 R)
• M15: 18,366,729 km (0.074 R)
• M16: 19,810,797 km (0.114 R)
• M17: 25,255,861 km (0.064 R)
• M18: 26,095,404 km (0.048 R)
• M19: 26,780,263 km (0.114 R)
• M20: 30,953,894 km (0.082 R)
• M21: 31,624,840 km (0.118 R)
• M22: 32,501,933 km (0.084 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17.9

Radius: 14.4

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 4.13 AU - 4.31 AU

Year: 5781 Days

Day: 8.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 9,870,818 km

• M1: 527,332 km (0.114 R)
• M2: 1,782,758 km (0.101 R)
• M3: 2,579,516 km (0.05 R)
• M4: 3,503,283 km (0.09 R)
• M5: 4,333,551 km (0.072 R)
• M6: 6,089,082 km (0.111 R)
• M7: 7,775,200 km (0.117 R)
• M8: 8,969,888 km (0.108 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 476 - 15,752 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit