🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.08

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.57 AU - 0.77 AU

Year: 354 Days

Day: 23.1 Hours

Environment

Temp: -144 °C

Axial Tilt: 6.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 835.7

Radius: 13.6

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.6 AU - 0.82 AU

Year: 386 Days

Day: 6.3 Hours

Environment

Temp: -143 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,977,315 km

• M1: 169,195 km (0.046 R)
• M2: 751,729 km (0.092 R)
• M3: 1,221,616 km (0.098 R)
• M4: 1,666,071 km (0.094 R)
• M5: 2,255,337 km (0.107 R)
• M6: 2,845,651 km (0.115 R)
• M7: 3,291,452 km (0.119 R)
• M8: 4,175,875 km (0.081 R)
• M9: 4,711,286 km (0.059 R)
• M10: 5,134,947 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.7

Radius: 12.2

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.83 AU - 1.11 AU

Year: 617 Days

Day: 11.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 43,977,315 km

• M1: 152,739 km (0.082 R)
• M2: 657,782 km (0.068 R)
• M3: 1,157,289 km (0.12 R)
• M4: 1,577,659 km (0.077 R)
• M5: 2,159,744 km (0.053 R)
• M6: 3,018,735 km (0.1 R)
• M7: 3,898,221 km (0.118 R)
• M8: 4,363,770 km (0.074 R)
• M9: 4,911,298 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 692.7

Radius: 11.2

Gravity: 5.52 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 2.18 AU - 2.64 AU

Year: 2416 Days

Day: 13.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 43,977,315 km

• M1: 140,323 km (0.1 R)
• M2: 629,508 km (0.11 R)
• M3: 1,196,334 km (0.044 R)
• M4: 1,965,716 km (0.039 R)
• M5: 2,510,551 km (0.097 R)
• M6: 3,023,523 km (0.114 R)
• M7: 3,809,510 km (0.035 R)
• M8: 4,405,807 km (0.048 R)
• M9: 5,488,596 km (0.117 R)
• M10: 6,465,171 km (0.1 R)
• M11: 7,285,715 km (0.101 R)
• M12: 8,794,410 km (0.044 R)
• M13: 9,445,909 km (0.05 R)
• M14: 10,539,768 km (0.061 R)
• M15: 12,378,326 km (0.115 R)
• M16: 14,005,203 km (0.052 R)
• M17: 15,376,716 km (0.113 R)
• M18: 17,096,344 km (0.076 R)
• M19: 18,384,980 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.7

Radius: 9.1

Gravity: 5.73 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 2.24 AU - 3.72 AU

Year: 3322 Days

Day: 8.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 43,977,315 km

• M1: 113,246 km (0.068 R)
• M2: 410,646 km (0.087 R)
• M3: 1,188,555 km (0.073 R)
• M4: 1,932,206 km (0.059 R)
• M5: 2,227,064 km (0.115 R)
• M6: 2,566,950 km (0.074 R)
• M7: 3,142,154 km (0.119 R)
• M8: 3,479,048 km (0.115 R)
• M9: 4,019,695 km (0.111 R)
• M10: 4,331,906 km (0.099 R)
• M11: 5,123,727 km (0.118 R)
• M12: 5,466,456 km (0.079 R)
• M13: 7,293,046 km (0.09 R)
• M14: 8,478,459 km (0.117 R)
• M15: 9,205,954 km (0.118 R)
• M16: 10,049,985 km (0.108 R)
• M17: 10,393,910 km (0.095 R)
• M18: 11,308,701 km (0.025 R)
• M19: 12,537,349 km (0.041 R)
• M20: 15,208,269 km (0.118 R)
• M21: 15,764,175 km (0.049 R)
• M22: 16,702,901 km (0.108 R)
• M23: 18,293,276 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.5

Radius: 9.3

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 2.79 AU - 3.47 AU

Year: 3575 Days

Day: 13.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 43,977,315 km

• M1: 117,135 km (0.103 R)
• M2: 453,282 km (0.091 R)
• M3: 1,851,872 km (0.119 R)
• M4: 3,270,359 km (0.086 R)
• M5: 4,231,226 km (0.102 R)
• M6: 4,629,306 km (0.039 R)
• M7: 5,135,545 km (0.11 R)
• M8: 5,700,876 km (0.108 R)
• M9: 6,331,281 km (0.109 R)
• M10: 7,403,449 km (0.097 R)
• M11: 9,420,926 km (0.058 R)
• M12: 9,838,603 km (0.08 R)
• M13: 10,676,351 km (0.102 R)
• M14: 12,077,036 km (0.077 R)
• M15: 13,195,280 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872

Radius: 11

Gravity: 7.21 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 3.23 AU - 4.73 AU

Year: 5127 Days

Day: 10.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 43,977,315 km

• M1: 137,331 km (0.084 R)
• M2: 480,060 km (0.088 R)
• M3: 856,448 km (0.106 R)
• M4: 2,117,707 km (0.114 R)
• M5: 2,735,098 km (0.072 R)
• M6: 3,756,103 km (0.077 R)
• M7: 4,404,760 km (0.057 R)
• M8: 4,959,618 km (0.076 R)
• M9: 6,209,658 km (0.118 R)
• M10: 6,636,162 km (0.054 R)
• M11: 7,223,632 km (0.066 R)
• M12: 7,695,913 km (0.091 R)
• M13: 8,383,913 km (0.072 R)
• M14: 9,794,771 km (0.102 R)
• M15: 11,358,069 km (0.098 R)
• M16: 13,565,685 km (0.101 R)
• M17: 15,266,014 km (0.115 R)
• M18: 16,106,455 km (0.097 R)
• M19: 18,542,955 km (0.079 R)
• M20: 21,362,726 km (0.109 R)
• M21: 24,376,075 km (0.03 R)
• M22: 24,781,934 km (0.104 R)
• M23: 26,280,157 km (0.066 R)
• M24: 28,014,894 km (0.102 R)
• M25: 29,640,125 km (0.072 R)
• M26: 31,136,852 km (0.06 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347.7

Radius: 9.7

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 4.35 AU - 5.79 AU

Year: 7371 Days

Day: 9.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 43,977,315 km

• M1: 135,984 km (0.065 R)
• M2: 606,320 km (0.079 R)
• M3: 1,046,587 km (0.084 R)
• M4: 1,534,725 km (0.083 R)
• M5: 1,992,793 km (0.12 R)
• M6: 2,952,763 km (0.09 R)
• M7: 3,666,345 km (0.107 R)
• M8: 4,695,428 km (0.088 R)
• M9: 7,492,011 km (0.11 R)
• M10: 8,854,249 km (0.068 R)
• M11: 15,040,271 km (0.09 R)
• M12: 17,069,416 km (0.047 R)
• M13: 23,233,746 km (0.098 R)
• M14: 27,275,432 km (0.1 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 674.5

Radius: 15

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 5.64 AU - 5.82 AU

Year: 8856 Days

Day: 9.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 43,977,315 km

• M1: 186,698 km (0.099 R)
• M2: 754,871 km (0.044 R)
• M3: 1,516,474 km (0.114 R)
• M4: 2,263,865 km (0.09 R)
• M5: 2,926,583 km (0.104 R)
• M6: 3,548,162 km (0.051 R)
• M7: 5,370,115 km (0.073 R)
• M8: 6,487,012 km (0.111 R)
• M9: 7,005,668 km (0.102 R)
• M10: 7,472,264 km (0.039 R)
• M11: 8,042,830 km (0.116 R)
• M12: 8,774,962 km (0.098 R)
• M13: 9,364,378 km (0.089 R)
• M14: 11,399,059 km (0.082 R)
• M15: 12,157,221 km (0.115 R)
• M16: 17,292,018 km (0.092 R)
• M17: 21,859,241 km (0.076 R)
• M18: 22,439,681 km (0.115 R)
• M19: 24,419,758 km (0.086 R)
• M20: 26,234,380 km (0.07 R)
• M21: 33,513,513 km (0.073 R)
• M22: 36,211,361 km (0.11 R)
• M23: 40,774,396 km (0.072 R)
• M24: 42,676,682 km (0.025 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 371 - 18,552 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit