🌌 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: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.45

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.47 AU - 0.59 AU

Year: 253 Days

Day: 28.4 Hours

Environment

Temp: -113 °C

Axial Tilt: 8.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321.4

Radius: 11.4

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.77 AU - 0.77 AU

Year: 443 Days

Day: 12.6 Hours

Environment

Temp: -144 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,176,000 km

• M1: 141,819 km (0.117 R)
• M2: 519,254 km (0.118 R)
• M3: 1,774,380 km (0.117 R)
• M4: 2,214,796 km (0.103 R)
• M5: 2,899,955 km (0.111 R)
• M6: 3,494,457 km (0.036 R)
• M7: 4,583,978 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 455.8

Radius: 14.6

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.05 AU - 1.13 AU

Year: 747 Days

Day: 12.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,176,000 km

• M1: 182,210 km (0.115 R)
• M2: 854,353 km (0.107 R)
• M3: 1,768,546 km (0.109 R)
• M4: 2,243,519 km (0.081 R)
• M5: 5,965,813 km (0.045 R)
• M6: 6,726,070 km (0.117 R)
• M7: 7,332,689 km (0.092 R)

Asteroid Belt

Center: 2.55 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.4

Radius: 8.3

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 3.88 AU - 4.12 AU

Year: 5248 Days

Day: 8.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 66,176,000 km

• M1: 127,757 km (0.104 R)
• M2: 478,713 km (0.062 R)
• M3: 2,301,563 km (0.056 R)
• M4: 2,737,192 km (0.119 R)
• M5: 3,226,976 km (0.098 R)
• M6: 4,009,223 km (0.053 R)
• M7: 7,234,852 km (0.109 R)
• M8: 7,661,954 km (0.092 R)
• M9: 8,803,835 km (0.118 R)
• M10: 9,079,992 km (0.051 R)
• M11: 11,791,454 km (0.032 R)
• M12: 13,173,738 km (0.105 R)
• M13: 13,811,175 km (0.086 R)
• M14: 19,555,284 km (0.072 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 681.9

Radius: 4.6

Gravity: 32.23 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 6.83 AU - 9.21 AU

Year: 14899 Days

Day: 19.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 66,176,000 km

• M1: 57,146 km (0.103 R)
• M2: 247,435 km (0.056 R)
• M3: 478,264 km (0.114 R)
• M4: 643,121 km (0.09 R)
• M5: 941,270 km (0.037 R)
• M6: 1,091,466 km (0.119 R)
• M7: 1,426,565 km (0.107 R)
• M8: 1,862,045 km (0.106 R)
• M9: 3,294,295 km (0.111 R)
• M10: 3,453,018 km (0.102 R)
• M11: 3,814,596 km (0.082 R)
• M12: 4,356,290 km (0.078 R)
• M13: 4,947,800 km (0.12 R)
• M14: 5,628,470 km (0.103 R)
• M15: 6,658,152 km (0.119 R)
• M16: 7,306,360 km (0.091 R)
• M17: 8,283,085 km (0.086 R)
• M18: 9,343,733 km (0.118 R)
• M19: 10,099,203 km (0.093 R)
• M20: 14,708,612 km (0.091 R)
• M21: 15,213,056 km (0.099 R)
• M22: 16,028,813 km (0.102 R)
• M23: 17,346,172 km (0.028 R)
• M24: 19,497,988 km (0.103 R)
• M25: 21,544,487 km (0.109 R)
• M26: 23,339,362 km (0.107 R)
• M27: 24,522,981 km (0.101 R)
• M28: 26,058,004 km (0.103 R)
• M29: 27,331,381 km (0.083 R)
• M30: 32,962,096 km (0.061 R)
• M31: 34,198,971 km (0.096 R)
• M32: 42,565,531 km (0.1 R)
• M33: 47,218,025 km (0.113 R)
• M34: 52,032,234 km (0.046 R)
• M35: 52,697,944 km (0.118 R)
• M36: 56,811,287 km (0.103 R)
• M37: 59,488,042 km (0.093 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 706.7

Radius: 3.9

Gravity: 46.46 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 7.03 AU - 9.77 AU

Year: 15971 Days

Day: 20.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 66,176,000 km

• M1: 50,115 km (0.097 R)
• M2: 177,722 km (0.103 R)
• M3: 474,076 km (0.073 R)
• M4: 1,453,942 km (0.083 R)
• M5: 1,595,461 km (0.099 R)
• M6: 1,888,075 km (0.075 R)
• M7: 2,763,970 km (0.09 R)
• M8: 2,957,251 km (0.088 R)
• M9: 3,185,387 km (0.111 R)
• M10: 3,648,542 km (0.069 R)
• M11: 3,941,006 km (0.074 R)
• M12: 4,062,330 km (0.113 R)
• M13: 4,947,800 km (0.109 R)
• M14: 5,681,578 km (0.086 R)
• M15: 5,836,561 km (0.087 R)
• M16: 9,617,348 km (0.115 R)
• M17: 10,753,095 km (0.068 R)
• M18: 11,849,199 km (0.087 R)
• M19: 12,102,468 km (0.077 R)
• M20: 15,355,473 km (0.069 R)
• M21: 20,841,078 km (0.109 R)
• M22: 22,056,560 km (0.049 R)
• M23: 24,423,199 km (0.112 R)
• M24: 26,198,477 km (0.071 R)
• M25: 27,723,477 km (0.111 R)
• M26: 31,188,613 km (0.118 R)
• M27: 36,242,927 km (0.106 R)
• M28: 39,382,687 km (0.097 R)
• M29: 41,379,968 km (0.056 R)
• M30: 43,144,774 km (0.092 R)
• M31: 44,197,045 km (0.065 R)
• M32: 55,324,285 km (0.074 R)
• M33: 55,854,011 km (0.093 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 322 - 16,045 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit