🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.08

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.44 AU - 0.73 AU

Year: 290 Days

Day: 32.6 Hours

Environment

Temp: -134 °C

Axial Tilt: 25.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 35,796,888 km

• M1: 63,579 km (0.111 R)
• M2: 169,046 km (0.093 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.48 AU - 0.76 AU

Year: 320 Days

Day: 29.1 Hours

Environment

Temp: -140 °C

Axial Tilt: 33 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.4

Radius: 15

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.7 AU - 1.06 AU

Year: 542 Days

Day: 9.4 Hours

Environment

Temp: -143 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,796,888 km

• M1: 186,549 km (0.073 R)
• M2: 664,065 km (0.038 R)
• M3: 1,160,281 km (0.103 R)
• M4: 1,637,947 km (0.092 R)
• M5: 2,318,169 km (0.098 R)
• M6: 2,797,929 km (0.081 R)
• M7: 3,307,011 km (0.074 R)
• M8: 4,020,592 km (0.104 R)
• M9: 4,705,451 km (0.105 R)
• M10: 5,187,605 km (0.058 R)
• M11: 6,001,418 km (0.088 R)
• M12: 6,509,602 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 406.1

Radius: 14.3

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.9 AU - 1.08 AU

Year: 646 Days

Day: 10.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 35,796,888 km

• M1: 177,872 km (0.094 R)
• M2: 628,610 km (0.065 R)
• M3: 1,106,127 km (0.115 R)
• M4: 1,595,162 km (0.097 R)
• M5: 2,359,458 km (0.1 R)
• M6: 2,968,022 km (0.102 R)
• M7: 4,699,019 km (0.105 R)
• M8: 5,499,816 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 697.9

Radius: 10.9

Gravity: 5.87 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 3.8 AU - 4.36 AU

Year: 5406 Days

Day: 11.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 35,796,888 km

• M1: 153,787 km (0.095 R)
• M2: 508,334 km (0.082 R)
• M3: 896,989 km (0.074 R)
• M4: 1,502,112 km (0.055 R)
• M5: 2,380,850 km (0.104 R)
• M6: 2,982,234 km (0.105 R)
• M7: 3,551,453 km (0.065 R)
• M8: 4,048,418 km (0.119 R)
• M9: 5,409,609 km (0.076 R)
• M10: 5,853,765 km (0.102 R)
• M11: 6,748,360 km (0.104 R)
• M12: 7,441,596 km (0.119 R)
• M13: 9,051,270 km (0.115 R)
• M14: 9,764,851 km (0.104 R)
• M15: 12,131,490 km (0.047 R)
• M16: 12,636,981 km (0.114 R)
• M17: 13,962,119 km (0.101 R)
• M18: 15,436,256 km (0.113 R)
• M19: 16,030,010 km (0.114 R)
• M20: 18,492,242 km (0.101 R)
• M21: 20,127,047 km (0.1 R)
• M22: 24,954,720 km (0.079 R)
• M23: 28,158,957 km (0.115 R)
• M24: 29,135,382 km (0.081 R)
• M25: 29,586,569 km (0.074 R)
• M26: 30,688,657 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.6

Radius: 9.3

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 4.98 AU - 5.4 AU

Year: 7756 Days

Day: 13.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 35,796,888 km

• M1: 115,639 km (0.085 R)
• M2: 680,521 km (0.114 R)
• M3: 1,048,980 km (0.11 R)
• M4: 1,355,506 km (0.043 R)
• M5: 2,238,134 km (0.09 R)
• M6: 2,718,044 km (0.035 R)
• M7: 4,445,151 km (0.068 R)
• M8: 4,829,468 km (0.069 R)
• M9: 5,265,546 km (0.115 R)
• M10: 5,570,875 km (0.056 R)
• M11: 6,150,268 km (0.028 R)
• M12: 8,665,905 km (0.105 R)
• M13: 9,355,402 km (0.025 R)
• M14: 11,339,219 km (0.08 R)
• M15: 12,537,050 km (0.112 R)
• M16: 14,878,406 km (0.092 R)
• M17: 15,929,480 km (0.03 R)
• M18: 17,496,817 km (0.084 R)
• M19: 19,962,938 km (0.078 R)
• M20: 24,884,708 km (0.087 R)
• M21: 25,922,618 km (0.056 R)
• M22: 27,169,666 km (0.071 R)
• M23: 28,177,208 km (0.059 R)
• M24: 29,495,315 km (0.089 R)
• M25: 30,364,179 km (0.026 R)
• M26: 30,854,112 km (0.082 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 254.1

Radius: 6.2

Gravity: 6.61 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 5.25 AU - 7.53 AU

Year: 10596 Days

Day: 21.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 35,796,888 km

• M1: 77,342 km (0.037 R)
• M2: 318,195 km (0.068 R)
• M3: 852,857 km (0.113 R)
• M4: 1,130,960 km (0.089 R)
• M5: 3,833,146 km (0.113 R)
• M6: 5,796,020 km (0.083 R)
• M7: 6,052,431 km (0.113 R)
• M8: 7,908,940 km (0.1 R)
• M9: 10,724,372 km (0.115 R)
• M10: 11,062,613 km (0.073 R)
• M11: 13,409,504 km (0.074 R)
• M12: 16,006,075 km (0.054 R)
• M13: 16,384,408 km (0.046 R)
• M14: 17,488,440 km (0.07 R)
• M15: 18,503,162 km (0.103 R)
• M16: 19,271,796 km (0.112 R)
• M17: 19,699,945 km (0.113 R)
• M18: 20,353,987 km (0.051 R)
• M19: 21,399,975 km (0.085 R)
• M20: 21,628,711 km (0.114 R)
• M21: 22,013,476 km (0.112 R)
• M22: 23,924,589 km (0.109 R)
• M23: 25,599,487 km (0.066 R)
• M24: 26,553,173 km (0.112 R)
• M25: 28,164,642 km (0.104 R)
• M26: 29,745,442 km (0.107 R)
• M27: 32,375,971 km (0.12 R)
• M28: 33,490,924 km (0.084 R)
• M29: 33,799,245 km (0.079 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 256 - 15,878 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit