🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.6

Radius: 14.5

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.66 AU - 0.98 AU

Year: 495 Days

Day: 10.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,444,929 km

• M1: 180,415 km (0.069 R)
• M2: 746,942 km (0.105 R)
• M3: 1,238,072 km (0.108 R)
• M4: 1,735,335 km (0.113 R)
• M5: 2,492,301 km (0.098 R)
• M6: 3,519,739 km (0.102 R)
• M7: 4,067,117 km (0.05 R)
• M8: 4,573,506 km (0.09 R)
• M9: 5,152,151 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42.7

Radius: 10.5

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.83 AU - 1.03 AU

Year: 598 Days

Day: 6.7 Hours

Environment

Temp: -170 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 42,444,929 km

• M1: 134,937 km (0.106 R)
• M2: 882,478 km (0.08 R)
• M3: 1,573,321 km (0.116 R)
• M4: 1,964,968 km (0.112 R)
• M5: 2,848,643 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 756.2

Radius: 11.1

Gravity: 6.14 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.04 AU - 1.34 AU

Year: 866 Days

Day: 9.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 42,444,929 km

• M1: 139,575 km (0.109 R)
• M2: 713,731 km (0.107 R)
• M3: 1,332,618 km (0.049 R)
• M4: 1,693,597 km (0.09 R)
• M5: 2,061,010 km (0.112 R)
• M6: 2,643,095 km (0.112 R)
• M7: 4,939,722 km (0.119 R)
• M8: 6,606,092 km (0.105 R)
• M9: 7,339,272 km (0.087 R)
• M10: 8,151,588 km (0.078 R)
• M11: 9,077,300 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 760.1

Radius: 13.8

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 2.06 AU - 3.16 AU

Year: 2812 Days

Day: 8.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 42,444,929 km

• M1: 171,738 km (0.105 R)
• M2: 1,149,061 km (0.051 R)
• M3: 1,627,774 km (0.105 R)
• M4: 2,393,267 km (0.112 R)
• M5: 2,892,475 km (0.115 R)
• M6: 4,315,151 km (0.096 R)
• M7: 4,780,849 km (0.069 R)
• M8: 5,231,138 km (0.081 R)
• M9: 5,762,061 km (0.098 R)
• M10: 6,698,095 km (0.106 R)
• M11: 7,202,988 km (0.089 R)
• M12: 8,390,496 km (0.077 R)
• M13: 9,013,571 km (0.076 R)
• M14: 9,556,162 km (0.098 R)
• M15: 13,562,842 km (0.046 R)
• M16: 15,216,647 km (0.112 R)
• M17: 15,727,823 km (0.041 R)
• M18: 16,197,560 km (0.096 R)
• M19: 18,342,793 km (0.083 R)
• M20: 19,275,386 km (0.109 R)
• M21: 20,117,174 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225

Radius: 10.6

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 4.86 AU - 5.46 AU

Year: 7816 Days

Day: 14.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 42,444,929 km

• M1: 131,945 km (0.1 R)
• M2: 1,064,389 km (0.115 R)
• M3: 1,456,784 km (0.077 R)
• M4: 2,886,192 km (0.104 R)
• M5: 3,377,770 km (0.102 R)
• M6: 5,089,768 km (0.118 R)
• M7: 8,457,516 km (0.114 R)
• M8: 9,307,381 km (0.089 R)
• M9: 9,835,910 km (0.079 R)
• M10: 10,908,378 km (0.071 R)
• M11: 13,903,028 km (0.064 R)
• M12: 15,141,100 km (0.109 R)
• M13: 17,406,460 km (0.032 R)
• M14: 18,524,555 km (0.04 R)
• M15: 20,834,944 km (0.055 R)
• M16: 23,628,385 km (0.07 R)
• M17: 24,535,846 km (0.095 R)
• M18: 27,563,258 km (0.104 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 56.8

Radius: 5

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 6.34 AU - 9.04 AU

Year: 14221 Days

Day: 17 Hours

Environment

Temp: -238 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,444,929 km

• M1: 221,106 km (0.114 R)
• M2: 426,653 km (0.077 R)
• M3: 711,936 km (0.057 R)
• M4: 926,310 km (0.039 R)
• M5: 1,497,774 km (0.068 R)
• M6: 4,077,589 km (0.094 R)
• M7: 7,270,606 km (0.1 R)
• M8: 9,701,123 km (0.064 R)
• M9: 10,069,732 km (0.066 R)
• M10: 11,054,086 km (0.098 R)
• M11: 12,384,609 km (0.109 R)
• M12: 16,313,797 km (0.108 R)
• M13: 22,671,109 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 208.9

Radius: 7.9

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 6.24 AU - 9.76 AU

Year: 15089 Days

Day: 22.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 42,444,929 km

• M1: 99,333 km (0.071 R)
• M2: 384,167 km (0.076 R)
• M3: 978,968 km (0.104 R)
• M4: 1,498,971 km (0.107 R)
• M5: 1,748,051 km (0.082 R)
• M6: 2,225,867 km (0.12 R)
• M7: 2,668,676 km (0.081 R)
• M8: 2,995,548 km (0.099 R)
• M9: 3,349,048 km (0.11 R)
• M10: 3,754,907 km (0.063 R)
• M11: 4,113,493 km (0.061 R)
• M12: 4,466,843 km (0.065 R)
• M13: 4,723,104 km (0.047 R)
• M14: 5,391,507 km (0.115 R)
• M15: 5,781,958 km (0.117 R)
• M16: 7,029,006 km (0.089 R)
• M17: 8,489,530 km (0.112 R)
• M18: 9,336,852 km (0.083 R)
• M19: 11,408,633 km (0.106 R)
• M20: 13,531,277 km (0.103 R)
• M21: 14,437,242 km (0.059 R)
• M22: 16,036,144 km (0.072 R)
• M23: 22,436,689 km (0.097 R)
• M24: 24,486,927 km (0.111 R)
• M25: 24,840,427 km (0.025 R)
• M26: 26,939,285 km (0.089 R)
• M27: 31,486,313 km (0.101 R)
• M28: 36,750,213 km (0.1 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 440 - 16,246 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit