🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.2

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.64 AU - 0.68 AU

Year: 341 Days

Day: 35.1 Hours

Environment

Temp: -125 °C

Axial Tilt: 16.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678.1

Radius: 8.5

Gravity: 9.39 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.53 AU - 0.85 AU

Year: 364 Days

Day: 12.4 Hours

Environment

Temp: -136 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 34,133,548 km

• M1: 105,766 km (0.097 R)
• M2: 408,552 km (0.1 R)
• M3: 674,686 km (0.106 R)
• M4: 1,033,721 km (0.116 R)
• M5: 1,373,907 km (0.087 R)
• M6: 1,870,572 km (0.069 R)
• M7: 2,311,287 km (0.045 R)
• M8: 2,575,627 km (0.107 R)
• M9: 2,942,590 km (0.061 R)
• M10: 3,254,352 km (0.099 R)
• M11: 3,869,050 km (0.12 R)
• M12: 4,217,762 km (0.069 R)
• M13: 4,573,057 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.8

Radius: 10.9

Gravity: 7.74 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.74 AU - 0.86 AU

Year: 455 Days

Day: 8.7 Hours

Environment

Temp: -147 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 34,133,548 km

• M1: 135,536 km (0.103 R)
• M2: 492,177 km (0.085 R)
• M3: 865,872 km (0.106 R)
• M4: 1,246,300 km (0.049 R)
• M5: 1,641,837 km (0.072 R)
• M6: 2,258,180 km (0.047 R)
• M7: 2,910,427 km (0.074 R)
• M8: 3,366,850 km (0.111 R)
• M9: 3,897,773 km (0.1 R)
• M10: 4,335,945 km (0.098 R)
• M11: 4,806,729 km (0.07 R)
• M12: 5,277,813 km (0.104 R)
• M13: 5,673,200 km (0.1 R)
• M14: 6,523,814 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.7

Radius: 8.7

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.63 AU - 1.67 AU

Year: 1348 Days

Day: 11.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 34,133,548 km

• M1: 113,844 km (0.091 R)
• M2: 663,018 km (0.08 R)
• M3: 1,517,820 km (0.05 R)
• M4: 2,006,407 km (0.109 R)
• M5: 2,543,912 km (0.079 R)
• M6: 2,908,781 km (0.113 R)
• M7: 3,653,928 km (0.081 R)
• M8: 4,168,694 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.9

Radius: 14

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 2.04 AU - 2.32 AU

Year: 2047 Days

Day: 15 Hours

Environment

Temp: -184 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 34,133,548 km

• M1: 175,179 km (0.058 R)
• M2: 1,335,311 km (0.099 R)
• M3: 2,155,705 km (0.1 R)
• M4: 2,638,009 km (0.092 R)
• M5: 3,412,028 km (0.089 R)
• M6: 4,073,700 km (0.048 R)
• M7: 4,582,632 km (0.076 R)
• M8: 5,111,161 km (0.093 R)
• M9: 6,031,637 km (0.099 R)
• M10: 6,695,701 km (0.058 R)
• M11: 7,378,616 km (0.095 R)
• M12: 8,751,475 km (0.025 R)
• M13: 9,188,152 km (0.1 R)
• M14: 9,710,099 km (0.106 R)
• M15: 12,246,231 km (0.053 R)
• M16: 12,750,975 km (0.118 R)
• M17: 13,225,798 km (0.071 R)
• M18: 15,730,665 km (0.113 R)
• M19: 17,940,076 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 811.2

Radius: 8.4

Gravity: 11.5 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 2.59 AU - 3.49 AU

Year: 3370 Days

Day: 14.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 34,133,548 km

• M1: 104,419 km (0.105 R)
• M2: 446,699 km (0.031 R)
• M3: 920,924 km (0.072 R)
• M4: 1,566,290 km (0.042 R)
• M5: 2,423,186 km (0.105 R)
• M6: 2,877,066 km (0.097 R)
• M7: 5,439,678 km (0.078 R)
• M8: 6,017,574 km (0.052 R)
• M9: 6,307,046 km (0.117 R)
• M10: 6,636,012 km (0.111 R)
• M11: 10,094,565 km (0.073 R)
• M12: 11,355,974 km (0.025 R)
• M13: 12,207,336 km (0.099 R)
• M14: 12,813,806 km (0.058 R)
• M15: 18,715,442 km (0.107 R)
• M16: 21,004,887 km (0.06 R)
• M17: 21,672,543 km (0.058 R)
• M18: 24,121,310 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.5

Radius: 13

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 2.98 AU - 3.2 AU

Year: 3454 Days

Day: 13 Hours

Environment

Temp: -210 °C

Axial Tilt: 114.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 34,133,548 km

• M1: 161,715 km (0.097 R)
• M2: 653,892 km (0.11 R)
• M3: 1,379,143 km (0.099 R)
• M4: 2,031,988 km (0.081 R)
• M5: 2,777,284 km (0.116 R)
• M6: 3,290,405 km (0.102 R)
• M7: 3,982,146 km (0.116 R)
• M8: 4,531,020 km (0.111 R)
• M9: 5,656,744 km (0.081 R)
• M10: 7,822,473 km (0.06 R)
• M11: 10,305,947 km (0.109 R)
• M12: 11,465,031 km (0.08 R)
• M13: 11,993,411 km (0.098 R)
• M14: 12,495,761 km (0.051 R)
• M15: 13,319,596 km (0.032 R)
• M16: 14,884,091 km (0.071 R)
• M17: 15,562,816 km (0.034 R)
• M18: 16,414,477 km (0.071 R)
• M19: 17,884,874 km (0.118 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 708.6

Radius: 10.7

Gravity: 6.19 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 3.77 AU - 5.07 AU

Year: 5908 Days

Day: 13.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 57.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 34,133,548 km

• M1: 147,952 km (0.073 R)
• M2: 1,145,920 km (0.114 R)
• M3: 1,883,437 km (0.066 R)
• M4: 2,309,043 km (0.102 R)
• M5: 3,231,314 km (0.093 R)
• M6: 3,573,744 km (0.077 R)
• M7: 4,886,315 km (0.05 R)
• M8: 6,008,598 km (0.11 R)
• M9: 7,187,280 km (0.113 R)
• M10: 7,662,253 km (0.045 R)
• M11: 9,087,921 km (0.112 R)
• M12: 10,636,409 km (0.092 R)
• M13: 11,013,694 km (0.11 R)
• M14: 11,695,562 km (0.065 R)
• M15: 12,250,869 km (0.111 R)
• M16: 13,578,400 km (0.106 R)
• M17: 16,643,212 km (0.101 R)
• M18: 17,672,146 km (0.074 R)
• M19: 18,135,451 km (0.112 R)
• M20: 21,458,917 km (0.085 R)
• M21: 22,988,854 km (0.036 R)
• M22: 24,021,678 km (0.119 R)
• M23: 24,508,619 km (0.12 R)
• M24: 26,265,048 km (0.118 R)
• M25: 29,284,232 km (0.086 R)
• M26: 29,746,938 km (0.063 R)
• M27: 30,402,925 km (0.116 R)
• M28: 30,972,893 km (0.11 R)
• M29: 31,938,547 km (0.098 R)
• M30: 32,824,765 km (0.099 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 258 - 15,078 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit