🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.7

Radius: 11.8

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.54 AU - 0.56 AU

Year: 287 Days

Day: 6.8 Hours

Environment

Temp: -135 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 21,171,550 km

• M1: 146,756 km (0.048 R)
• M2: 549,174 km (0.115 R)
• M3: 924,664 km (0.081 R)
• M4: 1,420,282 km (0.077 R)
• M5: 2,047,845 km (0.113 R)
• M6: 2,745,719 km (0.099 R)
• M7: 3,195,111 km (0.098 R)
• M8: 3,792,755 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 818

Radius: 8.3

Gravity: 11.87 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.76 AU - 1.16 AU

Year: 661 Days

Day: 14.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 88.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 21,171,550 km

• M1: 103,223 km (0.112 R)
• M2: 401,072 km (0.087 R)
• M3: 694,433 km (0.087 R)
• M4: 1,034,320 km (0.092 R)
• M5: 1,332,767 km (0.095 R)
• M6: 1,592,170 km (0.098 R)
• M7: 2,166,327 km (0.063 R)
• M8: 2,685,282 km (0.095 R)
• M9: 3,310,900 km (0.058 R)
• M10: 3,708,082 km (0.056 R)
• M11: 4,106,013 km (0.041 R)
• M12: 4,532,367 km (0.107 R)
• M13: 4,849,664 km (0.089 R)
• M14: 6,945,680 km (0.116 R)
• M15: 7,414,070 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.8

Radius: 9.1

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.9 AU - 1.12 AU

Year: 713 Days

Day: 6.9 Hours

Environment

Temp: -178 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 21,171,550 km

• M1: 113,246 km (0.053 R)
• M2: 609,462 km (0.096 R)
• M3: 926,011 km (0.105 R)
• M4: 1,296,116 km (0.112 R)
• M5: 1,929,663 km (0.117 R)
• M6: 2,411,069 km (0.099 R)
• M7: 2,993,902 km (0.12 R)
• M8: 4,288,821 km (0.111 R)
• M9: 4,624,669 km (0.05 R)
• M10: 5,454,189 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 203

Radius: 10.2

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.17 AU - 1.31 AU

Year: 971 Days

Day: 11.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 21,171,550 km

• M1: 126,859 km (0.093 R)
• M2: 635,193 km (0.101 R)
• M3: 1,346,830 km (0.057 R)
• M4: 2,013,587 km (0.088 R)
• M5: 3,454,364 km (0.096 R)
• M6: 4,266,082 km (0.101 R)
• M7: 4,906,511 km (0.034 R)
• M8: 6,475,045 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 661.9

Radius: 9.2

Gravity: 7.82 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.52 AU - 1.82 AU

Year: 1517 Days

Day: 7.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 21,171,550 km

• M1: 114,742 km (0.1 R)
• M2: 420,520 km (0.083 R)
• M3: 780,452 km (0.059 R)
• M4: 1,764,956 km (0.104 R)
• M5: 2,242,322 km (0.099 R)
• M6: 2,537,629 km (0.099 R)
• M7: 3,392,880 km (0.118 R)
• M8: 4,116,036 km (0.09 R)
• M9: 4,979,066 km (0.045 R)
• M10: 5,292,174 km (0.079 R)
• M11: 6,982,780 km (0.107 R)
• M12: 7,269,559 km (0.115 R)
• M13: 8,884,618 km (0.055 R)
• M14: 9,472,687 km (0.1 R)
• M15: 10,218,731 km (0.116 R)
• M16: 11,392,925 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.5

Radius: 11.6

Gravity: 5.41 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.7 AU - 1.72 AU

Year: 1572 Days

Day: 11.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 21,171,550 km

• M1: 144,960 km (0.1 R)
• M2: 517,309 km (0.12 R)
• M3: 893,698 km (0.092 R)
• M4: 1,361,789 km (0.088 R)
• M5: 1,732,942 km (0.115 R)
• M6: 2,243,370 km (0.117 R)
• M7: 2,687,227 km (0.109 R)
• M8: 3,603,065 km (0.118 R)
• M9: 4,142,664 km (0.119 R)
• M10: 4,538,500 km (0.096 R)
• M11: 5,297,859 km (0.077 R)
• M12: 6,938,499 km (0.087 R)
• M13: 7,692,771 km (0.102 R)
• M14: 8,500,899 km (0.08 R)
• M15: 9,492,882 km (0.083 R)
• M16: 10,804,108 km (0.057 R)
• M17: 12,657,326 km (0.118 R)
• M18: 13,700,771 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 746.5

Radius: 9.7

Gravity: 7.93 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 2.31 AU - 2.73 AU

Year: 2812 Days

Day: 9.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 21,171,550 km

• M1: 120,725 km (0.114 R)
• M2: 422,614 km (0.116 R)
• M3: 784,940 km (0.091 R)
• M4: 1,275,771 km (0.102 R)
• M5: 1,938,340 km (0.029 R)
• M6: 4,335,047 km (0.108 R)
• M7: 4,759,157 km (0.101 R)
• M8: 5,510,737 km (0.078 R)
• M9: 5,848,529 km (0.099 R)
• M10: 6,594,723 km (0.047 R)
• M11: 8,895,389 km (0.118 R)
• M12: 10,578,514 km (0.102 R)
• M13: 11,020,426 km (0.096 R)
• M14: 11,474,456 km (0.098 R)
• M15: 12,113,837 km (0.119 R)
• M16: 13,094,152 km (0.116 R)
• M17: 13,416,984 km (0.034 R)
• M18: 13,982,763 km (0.059 R)
• M19: 14,861,052 km (0.076 R)
• M20: 17,998,718 km (0.077 R)
• M21: 19,631,878 km (0.097 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 305 - 14,079 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit