🌌 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 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668.2

Radius: 12.3

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.44 AU - 0.7 AU

Year: 302 Days

Day: 8.3 Hours

Environment

Temp: -156 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 32,509,751 km

• M1: 153,039 km (0.108 R)
• M2: 593,006 km (0.092 R)
• M3: 1,005,746 km (0.116 R)
• M4: 1,495,081 km (0.082 R)
• M5: 2,429,021 km (0.064 R)
• M6: 3,152,476 km (0.078 R)
• M7: 3,560,130 km (0.053 R)
• M8: 4,175,277 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 252

Radius: 9.9

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.99 AU - 1.05 AU

Year: 724 Days

Day: 5.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 32,509,751 km

• M1: 123,119 km (0.094 R)
• M2: 699,370 km (0.055 R)
• M3: 1,281,007 km (0.075 R)
• M4: 1,605,335 km (0.051 R)
• M5: 2,001,320 km (0.097 R)
• M6: 3,428,334 km (0.111 R)
• M7: 4,173,631 km (0.083 R)
• M8: 5,931,855 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464.8

Radius: 12.5

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.07 AU - 2.13 AU

Year: 2139 Days

Day: 13.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,509,751 km

• M1: 155,881 km (0.085 R)
• M2: 553,961 km (0.093 R)
• M3: 1,898,846 km (0.041 R)
• M4: 2,288,399 km (0.074 R)
• M5: 3,674,722 km (0.1 R)
• M6: 4,212,377 km (0.097 R)
• M7: 5,074,809 km (0.113 R)
• M8: 5,674,397 km (0.07 R)
• M9: 6,546,852 km (0.111 R)
• M10: 7,095,876 km (0.025 R)
• M11: 9,738,672 km (0.071 R)
• M12: 12,939,019 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.7

Radius: 13.8

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 2.2 AU - 2.76 AU

Year: 2745 Days

Day: 6.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 32,509,751 km

• M1: 171,888 km (0.091 R)
• M2: 621,579 km (0.047 R)
• M3: 1,202,318 km (0.107 R)
• M4: 1,907,074 km (0.106 R)
• M5: 2,596,720 km (0.104 R)
• M6: 3,239,243 km (0.096 R)
• M7: 5,253,129 km (0.103 R)
• M8: 6,162,983 km (0.113 R)
• M9: 9,138,036 km (0.113 R)
• M10: 9,764,103 km (0.058 R)
• M11: 12,361,122 km (0.052 R)
• M12: 13,086,672 km (0.098 R)
• M13: 14,890,374 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.3

Radius: 10.6

Gravity: 7.38 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 2.47 AU - 2.85 AU

Year: 3050 Days

Day: 13.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 32,509,751 km

• M1: 132,095 km (0.056 R)
• M2: 921,822 km (0.084 R)
• M3: 1,849,030 km (0.103 R)
• M4: 2,187,270 km (0.098 R)
• M5: 2,661,047 km (0.1 R)
• M6: 3,519,290 km (0.072 R)
• M7: 3,898,371 km (0.094 R)
• M8: 4,371,399 km (0.082 R)
• M9: 7,432,022 km (0.058 R)
• M10: 7,824,118 km (0.087 R)
• M11: 8,974,526 km (0.067 R)
• M12: 10,394,509 km (0.052 R)
• M13: 14,264,905 km (0.094 R)
• M14: 15,868,295 km (0.114 R)
• M15: 17,646,116 km (0.119 R)
• M16: 18,642,737 km (0.094 R)
• M17: 19,003,418 km (0.11 R)
• M18: 22,192,096 km (0.114 R)
• M19: 22,870,074 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 883.3

Radius: 9.4

Gravity: 10 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 3.66 AU - 4.26 AU

Year: 5539 Days

Day: 7.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 32,509,751 km

• M1: 117,135 km (0.09 R)
• M2: 480,209 km (0.101 R)
• M3: 1,054,366 km (0.075 R)
• M4: 1,879,099 km (0.068 R)
• M5: 2,412,415 km (0.118 R)
• M6: 3,270,359 km (0.05 R)
• M7: 3,899,418 km (0.115 R)
• M8: 4,217,912 km (0.076 R)
• M9: 4,963,508 km (0.096 R)
• M10: 6,080,256 km (0.094 R)
• M11: 7,768,468 km (0.112 R)
• M12: 8,516,008 km (0.101 R)
• M13: 10,245,958 km (0.115 R)
• M14: 12,722,701 km (0.106 R)
• M15: 13,152,944 km (0.054 R)
• M16: 13,648,711 km (0.09 R)
• M17: 14,619,003 km (0.093 R)
• M18: 15,031,594 km (0.095 R)
• M19: 15,880,263 km (0.109 R)
• M20: 18,617,904 km (0.118 R)
• M21: 22,658,991 km (0.058 R)
• M22: 24,344,959 km (0.074 R)
• M23: 25,176,574 km (0.094 R)
• M24: 26,199,225 km (0.109 R)
• M25: 27,249,402 km (0.101 R)
• M26: 32,424,142 km (0.088 R)
• M27: 34,250,582 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91.8

Radius: 9.5

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 4.07 AU - 4.29 AU

Year: 6007 Days

Day: 8.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 32,509,751 km

• M1: 118,182 km (0.088 R)
• M2: 416,032 km (0.103 R)
• M3: 914,043 km (0.048 R)
• M4: 1,270,385 km (0.116 R)
• M5: 1,575,565 km (0.057 R)
• M6: 2,656,858 km (0.075 R)
• M7: 4,055,149 km (0.051 R)
• M8: 5,476,479 km (0.113 R)
• M9: 6,865,794 km (0.05 R)
• M10: 8,866,516 km (0.093 R)
• M11: 10,845,696 km (0.072 R)
• M12: 15,178,350 km (0.119 R)
• M13: 15,948,779 km (0.067 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163.3

Radius: 12

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 4.18 AU - 6.42 AU

Year: 8577 Days

Day: 7.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 32,509,751 km

• M1: 149,448 km (0.059 R)
• M2: 692,040 km (0.093 R)
• M3: 1,090,718 km (0.115 R)
• M4: 2,919,253 km (0.093 R)
• M5: 3,709,279 km (0.086 R)
• M6: 4,961,413 km (0.111 R)
• M7: 5,463,314 km (0.044 R)
• M8: 6,385,585 km (0.102 R)
• M9: 7,578,179 km (0.081 R)
• M10: 8,837,943 km (0.106 R)
• M11: 9,577,854 km (0.051 R)
• M12: 10,358,605 km (0.077 R)
• M13: 11,769,014 km (0.079 R)
• M14: 13,403,820 km (0.088 R)
• M15: 15,294,737 km (0.112 R)
• M16: 18,393,208 km (0.108 R)
• M17: 18,831,530 km (0.112 R)
• M18: 23,241,675 km (0.108 R)
• M19: 25,724,551 km (0.049 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 437.6

Radius: 5.3

Gravity: 15.58 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 7.07 AU - 8.53 AU

Year: 15313 Days

Day: 24.7 Hours

Environment

Temp: -239 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 32,509,751 km

• M1: 66,721 km (0.118 R)
• M2: 891,304 km (0.09 R)
• M3: 1,062,444 km (0.114 R)
• M4: 2,218,836 km (0.107 R)
• M5: 2,434,705 km (0.081 R)
• M6: 2,621,703 km (0.087 R)
• M7: 3,678,013 km (0.04 R)
• M8: 4,958,421 km (0.094 R)
• M9: 6,199,934 km (0.089 R)
• M10: 6,872,227 km (0.11 R)
• M11: 8,407,101 km (0.119 R)
• M12: 8,982,155 km (0.025 R)
• M13: 9,583,090 km (0.097 R)
• M14: 11,721,442 km (0.032 R)
• M15: 15,600,664 km (0.102 R)
• M16: 16,615,088 km (0.114 R)
• M17: 17,366,069 km (0.102 R)
• M18: 17,749,937 km (0.065 R)
• M19: 19,260,277 km (0.097 R)
• M20: 21,288,076 km (0.091 R)
• M21: 23,175,403 km (0.085 R)
• M22: 26,362,137 km (0.091 R)
• M23: 27,589,737 km (0.118 R)
• M24: 28,428,981 km (0.104 R)
• M25: 28,962,148 km (0.078 R)
• M26: 30,490,290 km (0.081 R)
• M27: 38,552,718 km (0.099 R)
• M28: 39,205,862 km (0.052 R)
• M29: 42,029,223 km (0.07 R)
• M30: 42,720,963 km (0.1 R)
• M31: 47,477,577 km (0.118 R)
• M32: 52,895,563 km (0.101 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 62.4

Radius: 3.2

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 6.92 AU - 10.78 AU

Year: 18506 Days

Day: 18.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 32,509,751 km

• M1: 39,793 km (0.105 R)
• M2: 163,062 km (0.094 R)
• M3: 284,236 km (0.097 R)
• M4: 686,056 km (0.056 R)
• M5: 1,093,860 km (0.098 R)
• M6: 2,497,387 km (0.104 R)
• M7: 2,657,606 km (0.118 R)
• M8: 3,475,907 km (0.082 R)
• M9: 3,586,011 km (0.063 R)
• M10: 6,983,378 km (0.099 R)
• M11: 7,159,006 km (0.088 R)
• M12: 7,592,541 km (0.112 R)
• M13: 8,432,533 km (0.118 R)
• M14: 8,998,013 km (0.106 R)
• M15: 9,122,478 km (0.097 R)
• M16: 10,613,969 km (0.079 R)
• M17: 15,686,683 km (0.106 R)
• M18: 19,491,855 km (0.117 R)
• M19: 20,263,181 km (0.077 R)
• M20: 21,941,669 km (0.034 R)
• M21: 22,699,383 km (0.117 R)
• M22: 23,007,405 km (0.062 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 486 - 13,150 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit