🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 280.6

Radius: 13.1

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.81 AU - 0.99 AU

Year: 600 Days

Day: 5.3 Hours

Environment

Temp: -177 °C

Axial Tilt: 65.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 68,426,702 km

• M1: 163,361 km (0.112 R)
• M2: 595,699 km (0.105 R)
• M3: 1,092,663 km (0.117 R)
• M4: 1,849,628 km (0.086 R)
• M5: 2,636,812 km (0.116 R)
• M6: 3,869,947 km (0.12 R)
• M7: 4,773,967 km (0.093 R)
• M8: 5,222,312 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 69.1

Radius: 14.3

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.01 AU - 1.41 AU

Year: 936 Days

Day: 6.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 68,426,702 km

• M1: 177,872 km (0.09 R)
• M2: 657,632 km (0.119 R)
• M3: 2,509,803 km (0.081 R)
• M4: 3,159,657 km (0.112 R)
• M5: 4,428,396 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 934.1

Radius: 11.6

Gravity: 6.94 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.49 AU - 1.89 AU

Year: 1544 Days

Day: 9.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 68,426,702 km

• M1: 144,362 km (0.087 R)
• M2: 591,360 km (0.098 R)
• M3: 1,050,177 km (0.109 R)
• M4: 2,107,684 km (0.085 R)
• M5: 2,921,497 km (0.032 R)
• M6: 3,304,617 km (0.096 R)
• M7: 3,809,061 km (0.103 R)
• M8: 4,230,029 km (0.1 R)
• M9: 5,477,526 km (0.054 R)
• M10: 7,036,485 km (0.09 R)
• M11: 7,817,087 km (0.06 R)
• M12: 8,967,644 km (0.032 R)
• M13: 9,817,809 km (0.082 R)
• M14: 12,256,404 km (0.111 R)
• M15: 14,939,292 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73.4

Radius: 12.3

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.57 AU - 1.99 AU

Year: 1669 Days

Day: 6 Hours

Environment

Temp: -200 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,426,702 km

• M1: 153,338 km (0.113 R)
• M2: 553,363 km (0.083 R)
• M3: 1,282,054 km (0.113 R)
• M4: 1,881,193 km (0.04 R)
• M5: 3,258,391 km (0.043 R)
• M6: 3,660,660 km (0.088 R)
• M7: 5,007,938 km (0.06 R)
• M8: 6,013,086 km (0.054 R)
• M9: 6,563,906 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.7

Radius: 9.6

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 3.41 AU - 3.95 AU

Year: 4962 Days

Day: 7.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 68,426,702 km

• M1: 119,379 km (0.111 R)
• M2: 555,158 km (0.083 R)
• M3: 1,048,980 km (0.119 R)
• M4: 2,223,772 km (0.056 R)
• M5: 2,545,557 km (0.077 R)
• M6: 3,087,102 km (0.066 R)
• M7: 4,137,728 km (0.106 R)
• M8: 5,359,493 km (0.084 R)
• M9: 5,943,075 km (0.117 R)
• M10: 6,776,634 km (0.099 R)
• M11: 8,394,086 km (0.043 R)
• M12: 8,962,109 km (0.057 R)
• M13: 9,784,748 km (0.08 R)
• M14: 10,738,734 km (0.101 R)
• M15: 11,493,904 km (0.061 R)
• M16: 11,796,989 km (0.111 R)
• M17: 13,777,814 km (0.108 R)
• M18: 14,169,462 km (0.074 R)
• M19: 16,132,036 km (0.081 R)
• M20: 16,457,711 km (0.046 R)
• M21: 21,360,631 km (0.101 R)
• M22: 22,018,263 km (0.058 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.6

Radius: 8.7

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 3.64 AU - 4.62 AU

Year: 5900 Days

Day: 13.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 68,426,702 km

• M1: 117,434 km (0.114 R)
• M2: 437,574 km (0.119 R)
• M3: 812,616 km (0.105 R)
• M4: 4,951,241 km (0.055 R)
• M5: 5,947,862 km (0.102 R)
• M6: 6,645,885 km (0.111 R)
• M7: 7,101,710 km (0.085 R)
• M8: 8,300,887 km (0.065 R)
• M9: 10,514,935 km (0.054 R)
• M10: 15,374,772 km (0.095 R)
• M11: 15,970,769 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 555.1

Radius: 7.6

Gravity: 9.61 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 7.11 AU - 10.87 AU

Year: 18947 Days

Day: 23.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 68,426,702 km

• M1: 94,546 km (0.095 R)
• M2: 339,288 km (0.117 R)
• M3: 992,731 km (0.086 R)
• M4: 1,281,755 km (0.083 R)
• M5: 2,271,195 km (0.103 R)
• M6: 2,686,628 km (0.119 R)
• M7: 3,024,271 km (0.08 R)
• M8: 4,370,053 km (0.051 R)
• M9: 4,701,412 km (0.111 R)
• M10: 5,193,290 km (0.07 R)
• M11: 7,143,747 km (0.083 R)
• M12: 7,510,711 km (0.099 R)
• M13: 7,842,070 km (0.095 R)
• M14: 8,382,417 km (0.087 R)
• M15: 9,105,574 km (0.072 R)
• M16: 9,482,560 km (0.108 R)
• M17: 14,199,979 km (0.104 R)
• M18: 17,508,336 km (0.094 R)
• M19: 17,839,995 km (0.086 R)
• M20: 20,646,301 km (0.119 R)
• M21: 21,109,905 km (0.101 R)
• M22: 22,347,678 km (0.105 R)
• M23: 23,132,917 km (0.114 R)
• M24: 24,758,597 km (0.071 R)
• M25: 25,176,574 km (0.082 R)
• M26: 27,116,260 km (0.116 R)
• M27: 30,806,839 km (0.109 R)
• M28: 32,646,594 km (0.094 R)
• M29: 33,529,670 km (0.068 R)
• M30: 35,740,726 km (0.116 R)
• M31: 36,814,091 km (0.111 R)
• M32: 38,047,077 km (0.106 R)
• M33: 42,355,944 km (0.11 R)
• M34: 45,871,793 km (0.087 R)
• M35: 48,755,292 km (0.114 R)
• M36: 49,742,788 km (0.113 R)
• M37: 51,757,572 km (0.086 R)
• M38: 55,235,423 km (0.1 R)
• M39: 56,128,672 km (0.044 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 283 - 14,570 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit