🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.08

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.7 AU - 0.74 AU

Year: 259 Days

Day: 31.8 Hours

Environment

Temp: -7 °C

Axial Tilt: 38.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 72,665,180 km

• M1: 194,627 km (0.094 R)
• M2: 219,759 km (0.062 R)

Planet 2 - Gas Giant

Semi-Major Axis: 5.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.4

Radius: 12.5

Gravity: 5.4 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 4.88 AU - 6.2 AU

Year: 5537 Days

Day: 14.2 Hours

Environment

Temp: -174 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 72,665,180 km

• M1: 218,862 km (0.112 R)
• M2: 352,901 km (0.101 R)
• M3: 431,440 km (0.058 R)
• M4: 552,764 km (0.102 R)
• M5: 950,694 km (0.112 R)
• M6: 1,086,829 km (0.096 R)
• M7: 1,246,300 km (0.095 R)
• M8: 1,518,418 km (0.088 R)
• M9: 1,625,530 km (0.079 R)
• M10: 1,885,681 km (0.101 R)
• M11: 2,199,837 km (0.036 R)
• M12: 2,342,703 km (0.093 R)
• M13: 2,446,673 km (0.068 R)
• M14: 2,552,140 km (0.108 R)
• M15: 2,878,263 km (0.112 R)
• M16: 3,103,258 km (0.096 R)
• M17: 3,594,538 km (0.098 R)
• M18: 3,788,267 km (0.04 R)
• M19: 4,010,420 km (0.025 R)
• M20: 4,135,783 km (0.091 R)
• M21: 5,266,743 km (0.099 R)
• M22: 5,626,825 km (0.086 R)
• M23: 6,081,004 km (0.113 R)
• M24: 6,400,246 km (0.118 R)
• M25: 6,635,862 km (0.113 R)
• M26: 7,115,772 km (0.085 R)
• M27: 7,421,550 km (0.062 R)
• M28: 7,607,052 km (0.042 R)
• M29: 7,982,692 km (0.119 R)
• M30: 8,525,283 km (0.087 R)
• M31: 9,378,291 km (0.078 R)
• M32: 9,512,031 km (0.101 R)
• M33: 9,713,689 km (0.041 R)
• M34: 10,813,233 km (0.1 R)
• M35: 12,720,008 km (0.094 R)
• M36: 13,844,834 km (0.059 R)
• M37: 15,197,049 km (0.096 R)
• M38: 15,630,734 km (0.081 R)
• M39: 16,228,676 km (0.113 R)
• M40: 16,631,543 km (0.098 R)
• M41: 16,915,480 km (0.112 R)
• M42: 17,901,180 km (0.052 R)
• M43: 18,610,723 km (0.057 R)
• M44: 18,905,581 km (0.08 R)
• M45: 19,713,708 km (0.119 R)
• M46: 19,885,147 km (0.075 R)
• M47: 20,014,250 km (0.108 R)
• M48: 20,446,289 km (0.087 R)
• M49: 20,533,056 km (0.119 R)
• M50: 20,968,685 km (0.118 R)
• M51: 21,407,455 km (0.088 R)
• M52: 22,026,940 km (0.081 R)
• M53: 22,115,801 km (0.103 R)
• M54: 22,249,542 km (0.098 R)
• M55: 22,742,018 km (0.106 R)
• M56: 22,876,955 km (0.118 R)
• M57: 23,283,263 km (0.105 R)
• M58: 23,783,369 km (0.103 R)
• M59: 24,195,062 km (0.118 R)
• M60: 24,747,677 km (0.069 R)
• M61: 25,304,480 km (0.079 R)
• M62: 25,959,270 km (0.108 R)
• M63: 26,904,429 km (0.119 R)
• M64: 26,999,573 km (0.088 R)
• M65: 27,190,161 km (0.074 R)
• M66: 28,343,112 km (0.097 R)
• M67: 28,633,930 km (0.049 R)
• M68: 29,120,722 km (0.068 R)
• M69: 29,365,164 km (0.105 R)
• M70: 29,463,151 km (0.055 R)
• M71: 29,561,138 km (0.12 R)
• M72: 30,151,900 km (0.069 R)
• M73: 31,045,298 km (0.059 R)
• M74: 31,295,127 km (0.032 R)
• M75: 31,495,289 km (0.064 R)
• M76: 31,595,669 km (0.116 R)
• M77: 32,098,617 km (0.06 R)
• M78: 33,623,617 km (0.091 R)
• M79: 34,034,264 km (0.074 R)
• M80: 34,549,927 km (0.111 R)

Planet 3 - Ice Giant

Semi-Major Axis: 10.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 813.3

Radius: 5

Gravity: 32.53 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 9.21 AU - 11.31 AU

Year: 13954 Days

Day: 15.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (90)

Outer Limit: 72,665,180 km

• M1: 215,122 km (0.032 R)
• M2: 407,804 km (0.059 R)
• M3: 587,770 km (0.077 R)
• M4: 666,608 km (0.085 R)
• M5: 728,093 km (0.085 R)
• M6: 770,130 km (0.054 R)
• M7: 901,327 km (0.085 R)
• M8: 1,063,342 km (0.05 R)
• M9: 1,111,512 km (0.103 R)
• M10: 1,160,281 km (0.103 R)
• M11: 1,603,689 km (0.092 R)
• M12: 1,916,199 km (0.108 R)
• M13: 3,237,896 km (0.103 R)
• M14: 3,630,740 km (0.091 R)
• M15: 4,267,429 km (0.101 R)
• M16: 4,618,236 km (0.118 R)
• M17: 4,697,523 km (0.103 R)
• M18: 4,777,258 km (0.079 R)
• M19: 5,141,380 km (0.091 R)
• M20: 5,223,509 km (0.111 R)
• M21: 5,430,702 km (0.078 R)
• M22: 5,598,551 km (0.103 R)
• M23: 6,595,920 km (0.092 R)
• M24: 8,215,466 km (0.099 R)
• M25: 8,263,487 km (0.118 R)
• M26: 8,896,137 km (0.097 R)
• M27: 8,994,722 km (0.113 R)
• M28: 9,193,238 km (0.111 R)
• M29: 9,848,327 km (0.083 R)
• M30: 10,104,289 km (0.042 R)
• M31: 11,256,342 km (0.094 R)
• M32: 12,339,132 km (0.076 R)
• M33: 13,454,832 km (0.097 R)
• M34: 14,312,627 km (0.102 R)
• M35: 14,718,934 km (0.039 R)
• M36: 14,894,114 km (0.12 R)
• M37: 15,542,770 km (0.076 R)
• M38: 16,321,277 km (0.09 R)
• M39: 17,112,351 km (0.105 R)
• M40: 17,543,492 km (0.078 R)
• M41: 18,228,201 km (0.105 R)
• M42: 18,605,338 km (0.119 R)
• M43: 18,668,318 km (0.088 R)
• M44: 20,333,941 km (0.108 R)
• M45: 20,464,091 km (0.101 R)
• M46: 20,725,139 km (0.054 R)
• M47: 20,987,235 km (0.109 R)
• M48: 21,846,675 km (0.115 R)
• M49: 25,117,931 km (0.106 R)
• M50: 25,818,498 km (0.1 R)
• M51: 26,383,529 km (0.042 R)
• M52: 26,667,466 km (0.114 R)
• M53: 26,952,600 km (0.074 R)
• M54: 27,382,095 km (0.074 R)
• M55: 27,525,709 km (0.107 R)
• M56: 27,958,196 km (0.105 R)
• M57: 28,175,263 km (0.109 R)
• M58: 30,748,945 km (0.093 R)
• M59: 31,723,874 km (0.112 R)
• M60: 32,025,912 km (0.051 R)
• M61: 32,556,835 km (0.111 R)
• M62: 33,014,156 km (0.099 R)
• M63: 33,243,489 km (0.058 R)
• M64: 34,166,658 km (0.092 R)
• M65: 34,321,342 km (0.044 R)
• M66: 34,864,532 km (0.092 R)
• M67: 34,942,323 km (0.108 R)
• M68: 35,959,289 km (0.12 R)
• M69: 40,041,964 km (0.088 R)
• M70: 40,450,067 km (0.093 R)
• M71: 41,188,183 km (0.094 R)
• M72: 41,765,182 km (0.06 R)
• M73: 43,680,185 km (0.087 R)
• M74: 43,932,107 km (0.049 R)
• M75: 44,016,181 km (0.111 R)
• M76: 44,100,255 km (0.095 R)
• M77: 44,606,195 km (0.104 R)
• M78: 47,422,525 km (0.105 R)
• M79: 48,113,966 km (0.101 R)
• M80: 49,070,046 km (0.116 R)
• M81: 51,000,906 km (0.084 R)
• M82: 51,177,731 km (0.09 R)
• M83: 54,033,554 km (0.061 R)
• M84: 57,307,653 km (0.086 R)
• M85: 58,136,276 km (0.102 R)
• M86: 59,154,289 km (0.107 R)
• M87: 59,898,389 km (0.094 R)
• M88: 60,551,982 km (0.052 R)
• M89: 62,432,427 km (0.057 R)
• M90: 62,716,065 km (0.083 R)

Planet 4 - Ice Giant

Semi-Major Axis: 12.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 294.3

Radius: 4.2

Gravity: 16.68 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 10.46 AU - 13.78 AU

Year: 17915 Days

Day: 17.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (97)

Outer Limit: 72,665,180 km

• M1: 83,476 km (0.073 R)
• M2: 113,694 km (0.088 R)
• M3: 478,564 km (0.105 R)
• M4: 758,611 km (0.026 R)
• M5: 997,369 km (0.113 R)
• M6: 1,039,406 km (0.029 R)
• M7: 1,443,619 km (0.095 R)
• M8: 1,996,832 km (0.065 R)
• M9: 2,050,089 km (0.107 R)
• M10: 2,185,326 km (0.092 R)
• M11: 2,351,529 km (0.075 R)
• M12: 2,696,053 km (0.074 R)
• M13: 2,725,524 km (0.073 R)
• M14: 2,874,224 km (0.075 R)
• M15: 4,156,577 km (0.107 R)
• M16: 4,641,872 km (0.067 R)
• M17: 4,712,632 km (0.117 R)
• M18: 4,891,252 km (0.078 R)
• M19: 5,218,123 km (0.107 R)
• M20: 5,328,826 km (0.098 R)
• M21: 5,514,776 km (0.097 R)
• M22: 6,279,819 km (0.115 R)
• M23: 6,634,965 km (0.025 R)
• M24: 6,714,700 km (0.08 R)
• M25: 7,364,404 km (0.09 R)
• M26: 7,405,693 km (0.1 R)
• M27: 7,571,597 km (0.108 R)
• M28: 8,204,396 km (0.068 R)
• M29: 8,854,100 km (0.106 R)
• M30: 8,898,081 km (0.109 R)
• M31: 9,565,138 km (0.047 R)
• M32: 10,479,480 km (0.087 R)
• M33: 11,564,963 km (0.12 R)
• M34: 12,048,014 km (0.109 R)
• M35: 14,147,471 km (0.069 R)
• M36: 14,250,244 km (0.049 R)
• M37: 14,353,317 km (0.103 R)
• M38: 14,456,540 km (0.104 R)
• M39: 14,976,542 km (0.111 R)
• M40: 15,661,551 km (0.104 R)
• M41: 16,356,882 km (0.035 R)
• M42: 16,464,742 km (0.077 R)
• M43: 16,681,060 km (0.041 R)
• M44: 16,735,364 km (0.101 R)
• M45: 17,226,344 km (0.083 R)
• M46: 19,009,850 km (0.086 R)
• M47: 19,293,787 km (0.115 R)
• M48: 19,464,777 km (0.069 R)
• M49: 20,792,608 km (0.05 R)
• M50: 20,967,937 km (0.088 R)
• M51: 22,030,381 km (0.104 R)
• M52: 22,448,208 km (0.116 R)
• M53: 22,929,015 km (0.117 R)
• M54: 23,352,527 km (0.081 R)
• M55: 24,084,360 km (0.069 R)
• M56: 25,009,772 km (0.097 R)
• M57: 25,508,083 km (0.091 R)
• M58: 25,946,853 km (0.114 R)
• M59: 26,261,757 km (0.057 R)
• M60: 27,213,947 km (0.108 R)
• M61: 27,790,796 km (0.088 R)
• M62: 28,048,404 km (0.117 R)
• M63: 28,436,311 km (0.105 R)
• M64: 28,760,939 km (0.111 R)
• M65: 28,826,014 km (0.12 R)
• M66: 29,152,137 km (0.112 R)
• M67: 29,873,797 km (0.065 R)
• M68: 32,344,406 km (0.106 R)
• M69: 33,569,613 km (0.095 R)
• M70: 35,157,295 km (0.093 R)
• M71: 35,505,708 km (0.118 R)
• M72: 35,855,318 km (0.096 R)
• M73: 36,346,448 km (0.092 R)
• M74: 36,769,361 km (0.075 R)
• M75: 38,907,863 km (0.115 R)
• M76: 39,340,500 km (0.043 R)
• M77: 39,774,483 km (0.118 R)
• M78: 40,647,537 km (0.105 R)
• M79: 40,866,847 km (0.095 R)
• M80: 41,453,271 km (0.085 R)
• M81: 42,116,588 km (0.115 R)
• M82: 42,931,896 km (0.09 R)
• M83: 43,155,096 km (0.098 R)
• M84: 43,304,245 km (0.074 R)
• M85: 44,502,823 km (0.102 R)
• M86: 45,408,938 km (0.112 R)
• M87: 45,864,314 km (0.113 R)
• M88: 46,016,305 km (0.116 R)
• M89: 46,092,450 km (0.078 R)
• M90: 46,321,036 km (0.11 R)
• M91: 46,473,775 km (0.119 R)
• M92: 47,009,186 km (0.068 R)
• M93: 47,700,627 km (0.079 R)
• M94: 48,473,001 km (0.09 R)
• M95: 51,129,261 km (0.079 R)
• M96: 51,761,162 km (0.104 R)
• M97: 52,236,884 km (0.07 R)

Planet 5 - Ice Giant

Semi-Major Axis: 12.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 41.5

Radius: 4.1

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 10.44 AU - 15.38 AU

Year: 19695 Days

Day: 24.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (73)

Outer Limit: 72,665,180 km

• M1: 105,167 km (0.026 R)
• M2: 147,354 km (0.058 R)
• M3: 212,130 km (0.082 R)
• M4: 244,293 km (0.088 R)
• M5: 431,889 km (0.086 R)
• M6: 621,430 km (0.114 R)
• M7: 808,726 km (0.085 R)
• M8: 1,055,712 km (0.095 R)
• M9: 1,172,698 km (0.115 R)
• M10: 1,340,397 km (0.11 R)
• M11: 1,515,726 km (0.104 R)
• M12: 1,715,289 km (0.094 R)
• M13: 1,835,566 km (0.095 R)
• M14: 1,994,289 km (0.099 R)
• M15: 2,175,751 km (0.106 R)
• M16: 2,212,702 km (0.091 R)
• M17: 2,287,202 km (0.117 R)
• M18: 3,118,816 km (0.047 R)
• M19: 3,160,554 km (0.109 R)
• M20: 3,350,693 km (0.1 R)
• M21: 3,414,871 km (0.099 R)
• M22: 3,875,782 km (0.115 R)
• M23: 4,239,903 km (0.094 R)
• M24: 4,309,316 km (0.071 R)
• M25: 4,379,178 km (0.064 R)
• M26: 4,426,003 km (0.104 R)
• M27: 4,782,345 km (0.056 R)
• M28: 4,830,515 km (0.102 R)
• M29: 4,878,835 km (0.101 R)
• M30: 6,113,018 km (0.091 R)
• M31: 6,217,736 km (0.103 R)
• M32: 6,913,516 km (0.099 R)
• M33: 6,967,970 km (0.092 R)
• M34: 7,215,255 km (0.089 R)
• M35: 7,633,531 km (0.072 R)
• M36: 7,774,751 km (0.115 R)
• M37: 7,973,866 km (0.106 R)
• M38: 8,002,439 km (0.078 R)
• M39: 8,232,371 km (0.078 R)
• M40: 9,173,641 km (0.1 R)
• M41: 10,272,587 km (0.102 R)
• M42: 11,027,906 km (0.06 R)
• M43: 11,541,476 km (0.105 R)
• M44: 11,768,565 km (0.105 R)
• M45: 11,997,151 km (0.101 R)
• M46: 12,392,388 km (0.116 R)
• M47: 12,458,660 km (0.112 R)
• M48: 13,128,111 km (0.076 R)
• M49: 13,569,424 km (0.086 R)
• M50: 14,327,287 km (0.041 R)
• M51: 14,362,144 km (0.064 R)
• M52: 14,501,569 km (0.048 R)
• M53: 15,063,608 km (0.066 R)
• M54: 16,028,065 km (0.058 R)
• M55: 16,572,602 km (0.108 R)
• M56: 16,792,062 km (0.045 R)
• M57: 17,270,775 km (0.117 R)
• M58: 18,091,319 km (0.086 R)
• M59: 18,204,266 km (0.112 R)
• M60: 18,241,815 km (0.101 R)
• M61: 18,279,513 km (0.08 R)
• M62: 21,777,112 km (0.102 R)
• M63: 25,389,302 km (0.03 R)
• M64: 25,811,317 km (0.097 R)
• M65: 26,193,241 km (0.119 R)
• M66: 27,005,408 km (0.075 R)
• M67: 27,999,635 km (0.101 R)
• M68: 28,043,168 km (0.063 R)
• M69: 28,086,701 km (0.109 R)
• M70: 28,523,228 km (0.101 R)
• M71: 28,566,910 km (0.065 R)
• M72: 29,049,812 km (0.11 R)
• M73: 29,093,943 km (0.045 R)

Planet 6 - Ice Giant

Semi-Major Axis: 14.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 481.4

Radius: 6.5

Gravity: 11.39 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 10.69 AU - 17.33 AU

Year: 22265 Days

Day: 15.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 72,665,180 km

• M1: 114,592 km (0.087 R)
• M2: 367,712 km (0.053 R)
• M3: 556,055 km (0.104 R)
• M4: 1,174,343 km (0.073 R)
• M5: 1,631,664 km (0.092 R)
• M6: 1,943,426 km (0.117 R)
• M7: 2,239,779 km (0.104 R)
• M8: 2,341,805 km (0.039 R)
• M9: 2,480,183 km (0.104 R)
• M10: 3,801,880 km (0.114 R)
• M11: 4,047,071 km (0.118 R)
• M12: 4,553,161 km (0.113 R)
• M13: 4,813,611 km (0.082 R)
• M14: 5,168,457 km (0.095 R)
• M15: 5,213,486 km (0.052 R)
• M16: 5,577,757 km (0.088 R)
• M17: 5,950,405 km (0.101 R)
• M18: 7,266,417 km (0.083 R)
• M19: 8,455,421 km (0.099 R)
• M20: 8,508,528 km (0.111 R)
• M21: 10,434,302 km (0.116 R)
• M22: 10,720,034 km (0.109 R)
• M23: 10,777,479 km (0.068 R)
• M24: 10,835,075 km (0.079 R)
• M25: 11,066,353 km (0.09 R)
• M26: 12,487,832 km (0.084 R)
• M27: 12,913,288 km (0.108 R)
• M28: 12,974,474 km (0.119 R)
• M29: 13,467,100 km (0.084 R)
• M30: 13,966,008 km (0.102 R)
• M31: 15,110,283 km (0.095 R)
• M32: 15,239,385 km (0.047 R)
• M33: 15,368,788 km (0.111 R)
• M34: 15,824,463 km (0.052 R)
• M35: 17,487,841 km (0.105 R)
• M36: 18,305,843 km (0.086 R)
• M37: 18,512,288 km (0.06 R)
• M38: 19,066,548 km (0.11 R)
• M39: 20,618,925 km (0.115 R)
• M40: 20,833,747 km (0.117 R)
• M41: 21,265,487 km (0.065 R)
• M42: 21,700,368 km (0.093 R)
• M43: 21,991,785 km (0.064 R)
• M44: 22,138,091 km (0.093 R)
• M45: 22,578,657 km (0.09 R)
• M46: 22,874,113 km (0.116 R)
• M47: 23,842,909 km (0.066 R)
• M48: 26,516,971 km (0.103 R)
• M49: 28,008,013 km (0.115 R)
• M50: 33,646,506 km (0.034 R)
• M51: 33,899,326 km (0.068 R)
• M52: 34,832,069 km (0.103 R)
• M53: 35,087,881 km (0.077 R)
• M54: 35,773,189 km (0.057 R)
• M55: 38,118,435 km (0.03 R)
• M56: 38,382,026 km (0.052 R)
• M57: 39,088,128 km (0.076 R)
• M58: 40,423,289 km (0.079 R)
• M59: 40,692,266 km (0.069 R)
• M60: 41,141,658 km (0.087 R)
• M61: 41,773,560 km (0.086 R)
• M62: 42,226,841 km (0.088 R)
• M63: 42,681,918 km (0.086 R)
• M64: 44,056,573 km (0.084 R)
• M65: 44,333,179 km (0.098 R)
• M66: 44,795,586 km (0.106 R)
• M67: 45,259,639 km (0.087 R)
• M68: 45,445,589 km (0.109 R)
• M69: 47,508,843 km (0.082 R)
• M70: 48,456,845 km (0.072 R)
• M71: 48,837,721 km (0.114 R)
• M72: 50,178,716 km (0.104 R)
• M73: 50,371,249 km (0.091 R)
• M74: 51,143,922 km (0.097 R)
• M75: 51,628,918 km (0.067 R)
• M76: 52,212,798 km (0.115 R)
• M77: 52,701,086 km (0.076 R)
• M78: 55,065,929 km (0.038 R)
• M79: 55,264,445 km (0.044 R)
• M80: 55,662,376 km (0.12 R)
• M81: 58,981,653 km (0.076 R)
• M82: 59,490,286 km (0.116 R)
• M83: 60,204,616 km (0.092 R)
• M84: 60,409,116 km (0.07 R)
• M85: 60,716,540 km (0.117 R)
• M86: 61,229,960 km (0.12 R)
• M87: 61,538,730 km (0.042 R)
• M88: 61,744,876 km (0.111 R)
• M89: 61,951,171 km (0.1 R)
• M90: 63,298,001 km (0.117 R)
• M91: 66,125,999 km (0.098 R)
• M92: 68,140,783 km (0.084 R)
• M93: 68,674,249 km (0.088 R)
• M94: 71,146,204 km (0.095 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: 548 - 11,778 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit