🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.79

Radius: 1.26

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.49 AU - 0.59 AU

Year: 256 Days

Day: 28.8 Hours

Environment

Temp: -120 °C

Axial Tilt: 18.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.7

Radius: 13.5

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.74 AU - 0.82 AU

Year: 445 Days

Day: 7.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 74.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 34,182,839 km

• M1: 167,849 km (0.086 R)
• M2: 752,328 km (0.066 R)
• M3: 1,374,954 km (0.028 R)
• M4: 2,016,579 km (0.049 R)
• M5: 2,440,988 km (0.088 R)
• M6: 3,108,943 km (0.111 R)
• M7: 4,000,546 km (0.083 R)
• M8: 4,607,614 km (0.05 R)
• M9: 5,767,297 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.7

Radius: 14

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.1 AU - 1.1 AU

Year: 745 Days

Day: 7.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 34,182,839 km

• M1: 174,132 km (0.098 R)
• M2: 613,950 km (0.068 R)
• M3: 1,053,319 km (0.041 R)
• M4: 1,863,840 km (0.095 R)
• M5: 2,683,935 km (0.045 R)
• M6: 3,221,740 km (0.114 R)
• M7: 3,720,050 km (0.092 R)
• M8: 4,164,655 km (0.074 R)
• M9: 4,677,028 km (0.091 R)
• M10: 5,162,174 km (0.104 R)
• M11: 6,175,400 km (0.11 R)
• M12: 6,616,265 km (0.103 R)
• M13: 7,078,373 km (0.115 R)
• M14: 7,584,313 km (0.095 R)

Asteroid Belt

Center: 1.84 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.5

Radius: 10.8

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.27 AU - 2.89 AU

Year: 2676 Days

Day: 7.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 34,182,839 km

• M1: 135,236 km (0.043 R)
• M2: 471,383 km (0.1 R)
• M3: 825,182 km (0.097 R)
• M4: 1,780,065 km (0.094 R)
• M5: 2,200,734 km (0.107 R)
• M6: 2,853,879 km (0.102 R)
• M7: 3,578,830 km (0.111 R)
• M8: 4,137,129 km (0.044 R)
• M9: 4,768,881 km (0.074 R)
• M10: 5,679,633 km (0.118 R)
• M11: 6,661,743 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 643.5

Radius: 11.2

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 2.65 AU - 3.15 AU

Year: 3189 Days

Day: 15 Hours

Environment

Temp: -198 °C

Axial Tilt: 166.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 34,182,839 km

• M1: 139,276 km (0.099 R)
• M2: 607,068 km (0.063 R)
• M3: 1,033,272 km (0.047 R)
• M4: 1,532,630 km (0.103 R)
• M5: 2,136,557 km (0.116 R)
• M6: 2,562,163 km (0.113 R)
• M7: 2,959,943 km (0.1 R)
• M8: 5,403,774 km (0.116 R)
• M9: 5,846,584 km (0.102 R)
• M10: 7,543,173 km (0.094 R)
• M11: 8,197,963 km (0.08 R)
• M12: 11,795,493 km (0.043 R)
• M13: 14,230,198 km (0.108 R)
• M14: 14,624,837 km (0.08 R)
• M15: 16,063,819 km (0.113 R)
• M16: 16,982,350 km (0.038 R)
• M17: 19,042,463 km (0.044 R)
• M18: 20,071,247 km (0.106 R)
• M19: 21,521,449 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 651.8

Radius: 8.1

Gravity: 9.93 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 3.16 AU - 3.7 AU

Year: 4102 Days

Day: 11.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 34,182,839 km

• M1: 133,441 km (0.082 R)
• M2: 420,370 km (0.098 R)
• M3: 676,033 km (0.112 R)
• M4: 1,075,459 km (0.037 R)
• M5: 1,512,135 km (0.08 R)
• M6: 1,994,140 km (0.089 R)
• M7: 2,724,327 km (0.118 R)
• M8: 3,207,229 km (0.103 R)
• M9: 4,851,609 km (0.036 R)
• M10: 7,520,435 km (0.114 R)
• M11: 8,288,620 km (0.109 R)
• M12: 10,103,541 km (0.046 R)
• M13: 12,737,959 km (0.09 R)
• M14: 14,290,935 km (0.096 R)
• M15: 16,476,111 km (0.113 R)
• M16: 17,409,303 km (0.102 R)
• M17: 17,828,625 km (0.11 R)
• M18: 20,619,673 km (0.117 R)
• M19: 21,428,549 km (0.117 R)
• M20: 22,188,506 km (0.116 R)
• M21: 25,409,049 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 811.8

Radius: 10.1

Gravity: 7.96 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 2.89 AU - 4.27 AU

Year: 4374 Days

Day: 8.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 34,182,839 km

• M1: 125,662 km (0.113 R)
• M2: 503,247 km (0.095 R)
• M3: 1,320,650 km (0.083 R)
• M4: 1,660,237 km (0.053 R)
• M5: 2,131,321 km (0.041 R)
• M6: 2,958,148 km (0.09 R)
• M7: 3,323,915 km (0.104 R)
• M8: 3,676,667 km (0.089 R)
• M9: 5,046,983 km (0.077 R)
• M10: 5,686,963 km (0.055 R)
• M11: 6,255,585 km (0.106 R)
• M12: 7,061,169 km (0.119 R)
• M13: 8,303,280 km (0.083 R)
• M14: 10,279,318 km (0.101 R)
• M15: 13,256,466 km (0.098 R)
• M16: 13,724,258 km (0.036 R)
• M17: 14,637,703 km (0.102 R)
• M18: 15,705,981 km (0.054 R)
• M19: 16,171,081 km (0.106 R)
• M20: 16,525,778 km (0.081 R)
• M21: 18,187,212 km (0.062 R)
• M22: 21,058,743 km (0.106 R)
• M23: 22,712,398 km (0.11 R)
• M24: 27,683,385 km (0.106 R)
• M25: 28,965,589 km (0.065 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 49

Radius: 8.2

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 4.78 AU - 4.92 AU

Year: 6896 Days

Day: 13.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 34,182,839 km

• M1: 110,553 km (0.116 R)
• M2: 366,964 km (0.063 R)
• M3: 780,751 km (0.087 R)
• M4: 1,111,811 km (0.085 R)
• M5: 3,418,162 km (0.092 R)
• M6: 3,978,555 km (0.052 R)
• M7: 6,079,807 km (0.063 R)
• M8: 7,396,119 km (0.093 R)
• M9: 8,121,070 km (0.095 R)
• M10: 9,847,878 km (0.101 R)
• M11: 11,538,783 km (0.088 R)
• M12: 12,195,518 km (0.071 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.1

Radius: 12.2

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 5 AU - 6.48 AU

Year: 8879 Days

Day: 14.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 34,182,839 km

• M1: 151,692 km (0.025 R)
• M2: 622,178 km (0.063 R)
• M3: 1,107,772 km (0.108 R)
• M4: 2,329,688 km (0.065 R)
• M5: 2,819,920 km (0.12 R)
• M6: 3,551,304 km (0.094 R)
• M7: 3,938,912 km (0.083 R)
• M8: 4,854,451 km (0.111 R)
• M9: 6,000,969 km (0.12 R)
• M10: 6,655,160 km (0.089 R)
• M11: 7,356,475 km (0.096 R)
• M12: 8,742,350 km (0.114 R)
• M13: 9,540,754 km (0.085 R)
• M14: 10,758,032 km (0.096 R)
• M15: 11,138,010 km (0.101 R)
• M16: 13,390,356 km (0.098 R)
• M17: 15,208,868 km (0.101 R)
• M18: 16,054,095 km (0.066 R)
• M19: 18,037,015 km (0.106 R)
• M20: 18,710,206 km (0.09 R)
• M21: 22,407,068 km (0.114 R)
• M22: 27,348,735 km (0.06 R)
• M23: 27,879,658 km (0.104 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 261 - 17,639 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit