🌌 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: 345.5

Radius: 8.9

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.49 AU - 0.55 AU

Year: 254 Days

Day: 14.5 Hours

Environment

Temp: -136 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 34,432,626 km

• M1: 110,702 km (0.082 R)
• M2: 437,574 km (0.062 R)
• M3: 806,482 km (0.093 R)
• M4: 1,228,199 km (0.088 R)
• M5: 1,521,710 km (0.097 R)
• M6: 2,217,938 km (0.031 R)
• M7: 2,862,256 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 123.6

Radius: 13.9

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.5 AU - 0.6 AU

Year: 277 Days

Day: 10.6 Hours

Environment

Temp: -135 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 34,432,626 km

• M1: 172,935 km (0.119 R)
• M2: 606,470 km (0.074 R)
• M3: 1,069,475 km (0.102 R)
• M4: 1,613,413 km (0.076 R)
• M5: 2,062,805 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 552.3

Radius: 8.1

Gravity: 8.42 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.6 AU - 0.94 AU

Year: 458 Days

Day: 6.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 34,432,626 km

• M1: 101,727 km (0.096 R)
• M2: 382,671 km (0.084 R)
• M3: 643,420 km (0.119 R)
• M4: 1,218,624 km (0.052 R)
• M5: 1,721,572 km (0.108 R)
• M6: 2,311,138 km (0.118 R)
• M7: 3,523,179 km (0.028 R)
• M8: 3,847,807 km (0.1 R)
• M9: 4,471,032 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 563.9

Radius: 11.6

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.67 AU - 0.95 AU

Year: 494 Days

Day: 12.5 Hours

Environment

Temp: -174 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 34,432,626 km

• M1: 144,212 km (0.112 R)
• M2: 536,757 km (0.092 R)
• M3: 974,929 km (0.081 R)
• M4: 1,722,171 km (0.045 R)
• M5: 2,170,516 km (0.113 R)
• M6: 2,686,628 km (0.111 R)
• M7: 3,191,671 km (0.104 R)
• M8: 3,733,963 km (0.088 R)
• M9: 4,142,664 km (0.095 R)
• M10: 5,051,023 km (0.102 R)
• M11: 5,452,992 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.9

Radius: 14.9

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.83 AU - 1.01 AU

Year: 599 Days

Day: 6 Hours

Environment

Temp: -170 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 34,432,626 km

• M1: 185,950 km (0.108 R)
• M2: 738,714 km (0.114 R)
• M3: 1,287,439 km (0.072 R)
• M4: 2,169,319 km (0.03 R)
• M5: 2,756,790 km (0.097 R)
• M6: 4,020,293 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 990.2

Radius: 9.7

Gravity: 10.52 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.94 AU - 1.02 AU

Year: 658 Days

Day: 12.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 34,432,626 km

• M1: 120,576 km (0.078 R)
• M2: 442,361 km (0.092 R)
• M3: 974,181 km (0.091 R)
• M4: 1,317,658 km (0.119 R)
• M5: 1,751,193 km (0.087 R)
• M6: 2,147,328 km (0.092 R)
• M7: 2,491,403 km (0.061 R)
• M8: 2,908,931 km (0.087 R)
• M9: 3,665,597 km (0.116 R)
• M10: 5,156,788 km (0.105 R)
• M11: 5,471,393 km (0.068 R)
• M12: 6,536,081 km (0.107 R)
• M13: 7,520,285 km (0.114 R)
• M14: 7,877,525 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683

Radius: 12.3

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.89 AU - 1.41 AU

Year: 836 Days

Day: 9.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 34,432,626 km

• M1: 162,762 km (0.114 R)
• M2: 620,382 km (0.113 R)
• M3: 1,174,044 km (0.05 R)
• M4: 1,919,191 km (0.113 R)
• M5: 2,351,679 km (0.067 R)
• M6: 2,742,129 km (0.113 R)
• M7: 3,444,790 km (0.047 R)
• M8: 3,952,226 km (0.062 R)
• M9: 5,395,995 km (0.06 R)
• M10: 6,227,610 km (0.079 R)
• M11: 7,443,691 km (0.057 R)

Asteroid Belt

Center: 3.73 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 219.7

Radius: 5.7

Gravity: 6.76 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 5.89 AU - 6.73 AU

Year: 10751 Days

Day: 20 Hours

Environment

Temp: -235 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 34,432,626 km

• M1: 71,657 km (0.051 R)
• M2: 953,088 km (0.104 R)
• M3: 1,165,517 km (0.089 R)
• M4: 1,481,917 km (0.088 R)
• M5: 1,769,444 km (0.102 R)
• M6: 3,776,748 km (0.089 R)
• M7: 4,188,292 km (0.12 R)
• M8: 5,128,813 km (0.104 R)
• M9: 7,382,206 km (0.118 R)
• M10: 8,063,774 km (0.119 R)
• M11: 10,780,322 km (0.088 R)
• M12: 13,714,684 km (0.092 R)
• M13: 17,012,569 km (0.065 R)
• M14: 20,075,735 km (0.047 R)
• M15: 23,567,349 km (0.095 R)
• M16: 26,221,814 km (0.049 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 300 - 10,818 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit