🌌 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 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17.8

Radius: 11.6

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.66 AU - 0.68 AU

Year: 385 Days

Day: 13.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 54,124,293 km

• M1: 144,212 km (0.068 R)
• M2: 568,622 km (0.099 R)
• M3: 1,025,344 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801

Radius: 9.8

Gravity: 8.34 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.8 AU - 0.92 AU

Year: 561 Days

Day: 6.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 54,124,293 km

• M1: 121,922 km (0.103 R)
• M2: 439,219 km (0.105 R)
• M3: 811,718 km (0.073 R)
• M4: 1,174,642 km (0.101 R)
• M5: 1,556,117 km (0.097 R)
• M6: 2,194,451 km (0.047 R)
• M7: 2,553,636 km (0.088 R)
• M8: 3,353,386 km (0.046 R)
• M9: 4,863,128 km (0.104 R)
• M10: 5,407,664 km (0.051 R)
• M11: 6,359,256 km (0.032 R)
• M12: 6,823,458 km (0.081 R)
• M13: 7,138,212 km (0.05 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52

Radius: 9.1

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.91 AU - 0.95 AU

Year: 630 Days

Day: 5.7 Hours

Environment

Temp: -182 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 54,124,293 km

• M1: 113,694 km (0.042 R)
• M2: 423,063 km (0.088 R)
• M3: 2,079,111 km (0.099 R)
• M4: 2,738,987 km (0.119 R)
• M5: 3,095,479 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 51.7

Radius: 10.2

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 2.16 AU - 2.38 AU

Year: 2404 Days

Day: 10.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,124,293 km

• M1: 126,859 km (0.082 R)
• M2: 517,160 km (0.036 R)
• M3: 968,347 km (0.099 R)
• M4: 1,782,758 km (0.054 R)
• M5: 2,137,155 km (0.104 R)
• M6: 2,507,111 km (0.069 R)
• M7: 3,274,548 km (0.084 R)
• M8: 3,983,791 km (0.087 R)
• M9: 5,218,123 km (0.046 R)
• M10: 6,126,631 km (0.031 R)
• M11: 7,180,847 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.2

Radius: 13.5

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 2.21 AU - 2.81 AU

Year: 2795 Days

Day: 11.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 54,124,293 km

• M1: 167,998 km (0.086 R)
• M2: 778,807 km (0.04 R)
• M3: 1,288,187 km (0.084 R)
• M4: 2,163,335 km (0.104 R)
• M5: 2,924,938 km (0.107 R)
• M6: 3,665,297 km (0.104 R)
• M7: 4,310,812 km (0.031 R)
• M8: 5,031,126 km (0.11 R)
• M9: 5,495,927 km (0.113 R)
• M10: 6,178,691 km (0.068 R)
• M11: 6,626,587 km (0.091 R)
• M12: 10,281,562 km (0.116 R)
• M13: 11,865,056 km (0.076 R)
• M14: 13,746,399 km (0.086 R)
• M15: 14,174,249 km (0.075 R)
• M16: 15,511,205 km (0.088 R)
• M17: 18,955,995 km (0.068 R)
• M18: 19,665,538 km (0.093 R)

Asteroid Belt

Center: 3.11 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996

Radius: 11.5

Gravity: 7.53 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 3.36 AU - 4.06 AU

Year: 5023 Days

Day: 5.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 54,124,293 km

• M1: 143,016 km (0.025 R)
• M2: 516,861 km (0.111 R)
• M3: 925,712 km (0.115 R)
• M4: 1,326,933 km (0.113 R)
• M5: 1,818,362 km (0.06 R)
• M6: 2,297,375 km (0.116 R)
• M7: 2,859,862 km (0.091 R)
• M8: 3,319,577 km (0.109 R)
• M9: 3,805,171 km (0.091 R)
• M10: 5,144,372 km (0.047 R)
• M11: 6,048,092 km (0.093 R)
• M12: 6,571,685 km (0.112 R)
• M13: 7,937,364 km (0.118 R)
• M14: 8,445,548 km (0.082 R)
• M15: 10,056,567 km (0.066 R)
• M16: 11,564,813 km (0.097 R)
• M17: 12,791,216 km (0.051 R)
• M18: 15,261,975 km (0.076 R)
• M19: 15,926,189 km (0.102 R)
• M20: 18,370,170 km (0.12 R)
• M21: 22,722,271 km (0.077 R)
• M22: 25,893,147 km (0.111 R)
• M23: 26,491,988 km (0.078 R)
• M24: 27,984,675 km (0.068 R)
• M25: 28,344,009 km (0.09 R)
• M26: 30,375,100 km (0.088 R)
• M27: 33,298,990 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.9

Radius: 8.9

Gravity: 9.49 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 3.76 AU - 4.14 AU

Year: 5518 Days

Day: 5.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 54,124,293 km

• M1: 113,545 km (0.074 R)
• M2: 673,490 km (0.076 R)
• M3: 1,051,374 km (0.095 R)
• M4: 1,368,372 km (0.117 R)
• M5: 1,790,088 km (0.068 R)
• M6: 2,248,606 km (0.077 R)
• M7: 3,337,828 km (0.09 R)
• M8: 3,800,235 km (0.103 R)
• M9: 4,431,538 km (0.112 R)
• M10: 8,205,144 km (0.091 R)
• M11: 11,877,173 km (0.098 R)
• M12: 13,437,180 km (0.104 R)
• M13: 15,844,359 km (0.067 R)
• M14: 19,136,709 km (0.117 R)
• M15: 21,052,160 km (0.072 R)
• M16: 22,018,563 km (0.063 R)
• M17: 24,767,124 km (0.095 R)
• M18: 25,343,076 km (0.086 R)
• M19: 28,268,313 km (0.103 R)
• M20: 30,183,315 km (0.114 R)
• M21: 31,699,340 km (0.12 R)
• M22: 32,378,215 km (0.03 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 391.3

Radius: 7.2

Gravity: 7.55 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 7.37 AU - 8.61 AU

Year: 15876 Days

Day: 15.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 54,124,293 km

• M1: 89,609 km (0.088 R)
• M2: 323,580 km (0.083 R)
• M3: 680,670 km (0.079 R)
• M4: 1,225,655 km (0.112 R)
• M5: 1,607,579 km (0.088 R)
• M6: 2,066,844 km (0.111 R)
• M7: 3,786,472 km (0.108 R)
• M8: 5,953,995 km (0.046 R)
• M9: 6,215,941 km (0.101 R)
• M10: 6,603,699 km (0.072 R)
• M11: 7,257,292 km (0.083 R)
• M12: 8,043,279 km (0.052 R)
• M13: 8,271,416 km (0.034 R)
• M14: 10,962,981 km (0.091 R)
• M15: 12,658,523 km (0.105 R)
• M16: 13,092,506 km (0.058 R)
• M17: 14,056,216 km (0.076 R)
• M18: 15,624,301 km (0.104 R)
• M19: 19,023,464 km (0.113 R)
• M20: 19,347,642 km (0.08 R)
• M21: 20,595,887 km (0.106 R)
• M22: 21,808,677 km (0.102 R)
• M23: 23,997,294 km (0.072 R)
• M24: 25,241,948 km (0.059 R)
• M25: 26,328,178 km (0.078 R)
• M26: 32,807,411 km (0.036 R)
• M27: 33,744,343 km (0.075 R)
• M28: 39,612,319 km (0.114 R)
• M29: 41,212,568 km (0.057 R)
• M30: 43,552,727 km (0.087 R)
• M31: 44,826,852 km (0.105 R)
• M32: 47,005,297 km (0.089 R)
• M33: 51,415,143 km (0.088 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: 328 - 18,156 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit