🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.94

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.51 AU - 0.61 AU

Year: 271 Days

Day: 42.5 Hours

Environment

Temp: -114 °C

Axial Tilt: 49 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319.3

Radius: 10.3

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.6 AU - 0.86 AU

Year: 403 Days

Day: 8.2 Hours

Environment

Temp: -132 °C

Axial Tilt: 164.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 19,113,614 km

• M1: 128,056 km (0.076 R)
• M2: 585,227 km (0.117 R)
• M3: 908,957 km (0.104 R)
• M4: 1,297,462 km (0.115 R)
• M5: 1,797,269 km (0.092 R)
• M6: 2,499,332 km (0.082 R)
• M7: 2,833,384 km (0.062 R)
• M8: 3,322,120 km (0.035 R)
• M9: 3,819,682 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 36.3

Radius: 14.6

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.61 AU - 1.01 AU

Year: 471 Days

Day: 14.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 19,113,614 km

• M1: 181,911 km (0.097 R)
• M2: 736,022 km (0.058 R)
• M3: 1,237,174 km (0.059 R)
• M4: 2,103,496 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.9

Radius: 12.3

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.77 AU - 0.87 AU

Year: 479 Days

Day: 5.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 19,113,614 km

• M1: 153,039 km (0.078 R)
• M2: 806,482 km (0.095 R)
• M3: 1,204,113 km (0.105 R)
• M4: 1,797,568 km (0.101 R)
• M5: 2,641,150 km (0.065 R)
• M6: 3,113,880 km (0.117 R)
• M7: 3,943,101 km (0.107 R)
• M8: 4,668,950 km (0.111 R)
• M9: 5,331,967 km (0.084 R)
• M10: 5,790,634 km (0.086 R)
• M11: 6,220,429 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 292.9

Radius: 10.5

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.04 AU - 1.1 AU

Year: 715 Days

Day: 6.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 19,113,614 km

• M1: 130,599 km (0.095 R)
• M2: 508,633 km (0.119 R)
• M3: 1,216,979 km (0.111 R)
• M4: 1,865,037 km (0.117 R)
• M5: 2,421,990 km (0.066 R)
• M6: 3,450,624 km (0.051 R)
• M7: 4,125,909 km (0.094 R)
• M8: 4,871,355 km (0.056 R)
• M9: 5,825,640 km (0.059 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.4

Radius: 8.5

Gravity: 13.42 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.44 AU - 2.08 AU

Year: 1508 Days

Day: 8 Hours

Environment

Temp: -193 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 19,113,614 km

• M1: 105,766 km (0.032 R)
• M2: 407,056 km (0.118 R)
• M3: 749,186 km (0.106 R)
• M4: 1,149,061 km (0.109 R)
• M5: 1,485,208 km (0.107 R)
• M6: 2,173,507 km (0.042 R)
• M7: 2,792,843 km (0.103 R)
• M8: 3,214,709 km (0.099 R)
• M9: 3,627,000 km (0.096 R)
• M10: 3,963,446 km (0.046 R)
• M11: 4,971,436 km (0.108 R)
• M12: 5,523,752 km (0.036 R)
• M13: 6,620,753 km (0.081 R)
• M14: 7,125,047 km (0.062 R)
• M15: 7,512,805 km (0.11 R)
• M16: 9,734,333 km (0.066 R)
• M17: 10,005,554 km (0.072 R)
• M18: 10,351,724 km (0.105 R)
• M19: 10,849,735 km (0.103 R)
• M20: 11,702,443 km (0.073 R)
• M21: 12,242,940 km (0.047 R)
• M22: 14,705,321 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 748.9

Radius: 9.1

Gravity: 9.04 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.89 AU - 2.81 AU

Year: 2326 Days

Day: 6.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 19,113,614 km

• M1: 115,639 km (0.104 R)
• M2: 671,545 km (0.059 R)
• M3: 1,099,993 km (0.055 R)
• M4: 1,641,089 km (0.045 R)
• M5: 1,955,543 km (0.066 R)
• M6: 2,663,440 km (0.085 R)
• M7: 3,085,157 km (0.027 R)
• M8: 3,810,557 km (0.107 R)
• M9: 4,142,814 km (0.095 R)
• M10: 4,754,819 km (0.065 R)
• M11: 7,041,721 km (0.119 R)
• M12: 7,635,326 km (0.033 R)
• M13: 8,620,876 km (0.116 R)
• M14: 9,905,473 km (0.038 R)
• M15: 10,423,381 km (0.096 R)
• M16: 12,677,372 km (0.103 R)
• M17: 14,520,867 km (0.103 R)
• M18: 15,878,318 km (0.08 R)
• M19: 16,691,083 km (0.046 R)
• M20: 18,344,140 km (0.086 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.6

Radius: 10.4

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 2.67 AU - 3.45 AU

Year: 3456 Days

Day: 13.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 19,113,614 km

• M1: 176,077 km (0.119 R)
• M2: 849,417 km (0.034 R)
• M3: 1,702,723 km (0.08 R)
• M4: 3,102,061 km (0.103 R)
• M5: 4,108,107 km (0.106 R)
• M6: 4,719,813 km (0.101 R)
• M7: 5,537,814 km (0.107 R)
• M8: 8,762,546 km (0.044 R)
• M9: 9,453,837 km (0.049 R)
• M10: 14,061,302 km (0.114 R)
• M11: 17,189,244 km (0.097 R)
• M12: 18,605,637 km (0.052 R)
• M13: 19,113,671 km (0.115 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 228 - 19,355 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit