🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

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: 1.93

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.55 AU - 0.57 AU

Year: 266 Days

Day: 43.9 Hours

Environment

Temp: -128 °C

Axial Tilt: 10.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 80,315,917 km

• M1: 59,540 km (0.036 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.74

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.46 AU - 0.68 AU

Year: 274 Days

Day: 31.4 Hours

Environment

Temp: -117 °C

Axial Tilt: 17.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.7

Radius: 9.8

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.77 AU - 1.15 AU

Year: 598 Days

Day: 8 Hours

Environment

Temp: -152 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,315,917 km

• M1: 121,922 km (0.089 R)
• M2: 454,778 km (0.054 R)
• M3: 790,774 km (0.083 R)
• M4: 1,132,007 km (0.115 R)
• M5: 2,066,994 km (0.113 R)
• M6: 2,743,775 km (0.059 R)
• M7: 3,868,152 km (0.108 R)
• M8: 4,505,140 km (0.082 R)
• M9: 5,114,602 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 92

Radius: 11

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.42 AU - 1.5 AU

Year: 1122 Days

Day: 6.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 80,315,917 km

• M1: 137,929 km (0.117 R)
• M2: 488,138 km (0.086 R)
• M3: 1,420,432 km (0.114 R)
• M4: 2,048,144 km (0.103 R)
• M5: 2,515,937 km (0.073 R)
• M6: 3,681,155 km (0.105 R)
• M7: 5,527,342 km (0.048 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322.7

Radius: 10.4

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 2.57 AU - 2.69 AU

Year: 2712 Days

Day: 12.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 80,315,917 km

• M1: 129,851 km (0.1 R)
• M2: 507,286 km (0.058 R)
• M3: 993,180 km (0.076 R)
• M4: 1,657,544 km (0.11 R)
• M5: 2,043,208 km (0.118 R)
• M6: 2,750,058 km (0.074 R)
• M7: 3,646,747 km (0.087 R)
• M8: 4,385,162 km (0.076 R)
• M9: 4,895,291 km (0.116 R)
• M10: 5,242,358 km (0.082 R)
• M11: 5,722,717 km (0.093 R)
• M12: 6,108,380 km (0.08 R)
• M13: 7,121,756 km (0.101 R)
• M14: 7,597,029 km (0.071 R)
• M15: 8,736,366 km (0.03 R)
• M16: 9,412,997 km (0.081 R)
• M17: 10,689,815 km (0.043 R)
• M18: 13,332,013 km (0.101 R)
• M19: 13,968,701 km (0.088 R)
• M20: 15,074,828 km (0.047 R)
• M21: 15,440,744 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 36.4

Radius: 8.5

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 2.81 AU - 2.87 AU

Year: 3043 Days

Day: 11.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,315,917 km

• M1: 106,065 km (0.088 R)
• M2: 430,393 km (0.103 R)
• M3: 873,801 km (0.071 R)
• M4: 1,303,745 km (0.088 R)
• M5: 2,127,431 km (0.116 R)
• M6: 2,398,203 km (0.092 R)
• M7: 2,949,472 km (0.092 R)
• M8: 3,666,195 km (0.072 R)
• M9: 7,337,177 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813.2

Radius: 11.6

Gravity: 6.04 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 3.08 AU - 3.6 AU

Year: 3881 Days

Day: 14.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 80,315,917 km

• M1: 144,212 km (0.108 R)
• M2: 632,949 km (0.067 R)
• M3: 1,007,990 km (0.093 R)
• M4: 1,439,730 km (0.109 R)
• M5: 1,995,486 km (0.046 R)
• M6: 2,416,754 km (0.111 R)
• M7: 3,624,158 km (0.068 R)
• M8: 4,098,084 km (0.113 R)
• M9: 4,468,488 km (0.104 R)
• M10: 5,494,281 km (0.106 R)
• M11: 6,361,799 km (0.052 R)
• M12: 7,318,328 km (0.117 R)
• M13: 8,515,709 km (0.086 R)
• M14: 8,968,093 km (0.108 R)
• M15: 9,757,820 km (0.099 R)
• M16: 10,169,813 km (0.106 R)
• M17: 11,521,280 km (0.097 R)
• M18: 12,598,983 km (0.081 R)
• M19: 17,408,405 km (0.114 R)
• M20: 22,596,758 km (0.113 R)
• M21: 24,206,880 km (0.1 R)
• M22: 26,763,508 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 516.3

Radius: 6.9

Gravity: 10.84 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 7.15 AU - 10.81 AU

Year: 17110 Days

Day: 17 Hours

Environment

Temp: -218 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 80,315,917 km

• M1: 88,263 km (0.048 R)
• M2: 341,083 km (0.051 R)
• M3: 696,528 km (0.085 R)
• M4: 915,389 km (0.061 R)
• M5: 1,513,182 km (0.118 R)
• M6: 2,470,908 km (0.098 R)
• M7: 2,689,471 km (0.085 R)
• M8: 3,897,324 km (0.112 R)
• M9: 4,572,010 km (0.072 R)
• M10: 5,286,340 km (0.039 R)
• M11: 6,151,464 km (0.108 R)
• M12: 7,372,482 km (0.093 R)
• M13: 8,449,886 km (0.114 R)
• M14: 10,796,778 km (0.054 R)
• M15: 12,056,840 km (0.106 R)
• M16: 13,212,484 km (0.112 R)
• M17: 15,667,983 km (0.04 R)
• M18: 16,421,807 km (0.072 R)
• M19: 23,248,706 km (0.066 R)
• M20: 27,984,825 km (0.038 R)
• M21: 31,044,401 km (0.081 R)
• M22: 31,279,419 km (0.119 R)
• M23: 32,111,781 km (0.11 R)
• M24: 33,696,621 km (0.088 R)
• M25: 47,667,866 km (0.083 R)
• M26: 51,680,080 km (0.068 R)
• M27: 53,177,854 km (0.083 R)
• M28: 54,362,669 km (0.031 R)
• M29: 55,047,528 km (0.095 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 975.2

Radius: 3.9

Gravity: 64.12 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 8.7 AU - 10 AU

Year: 18178 Days

Day: 18 Hours

Environment

Temp: -229 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 80,315,917 km

• M1: 62,532 km (0.117 R)
• M2: 308,770 km (0.116 R)
• M3: 478,713 km (0.086 R)
• M4: 1,576,313 km (0.09 R)
• M5: 2,215,694 km (0.117 R)
• M6: 2,605,397 km (0.102 R)
• M7: 2,880,956 km (0.066 R)
• M8: 3,231,314 km (0.09 R)
• M9: 3,431,326 km (0.066 R)
• M10: 3,856,184 km (0.111 R)
• M11: 3,983,791 km (0.115 R)
• M12: 4,180,512 km (0.098 R)
• M13: 5,070,919 km (0.046 R)
• M14: 5,826,987 km (0.106 R)
• M15: 5,995,284 km (0.111 R)
• M16: 7,709,526 km (0.064 R)
• M17: 8,870,107 km (0.099 R)
• M18: 10,142,287 km (0.102 R)
• M19: 14,525,654 km (0.056 R)
• M20: 15,070,489 km (0.101 R)
• M21: 15,548,155 km (0.115 R)
• M22: 16,200,701 km (0.098 R)
• M23: 19,271,198 km (0.067 R)
• M24: 20,310,903 km (0.107 R)
• M25: 24,189,976 km (0.047 R)
• M26: 25,175,975 km (0.117 R)
• M27: 27,227,710 km (0.114 R)
• M28: 27,580,163 km (0.053 R)
• M29: 36,408,382 km (0.113 R)
• M30: 39,025,297 km (0.049 R)
• M31: 41,920,764 km (0.064 R)
• M32: 42,705,854 km (0.076 R)
• M33: 43,821,405 km (0.116 R)
• M34: 45,448,432 km (0.038 R)
• M35: 48,477,938 km (0.066 R)
• M36: 49,516,895 km (0.059 R)
• M37: 54,006,028 km (0.113 R)
• M38: 55,309,774 km (0.119 R)
• M39: 60,336,561 km (0.081 R)
• M40: 60,535,676 km (0.1 R)
• M41: 66,930,387 km (0.09 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: 300 - 18,879 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit