![](https://upload.wikimedia.org/wikipedia/commons/thumb/b/bf/Planetarium_in_Putnam_Gallery_2%2C_2009-11-24.jpg/220px-Planetarium_in_Putnam_Gallery_2%2C_2009-11-24.jpg)
Solar System models, especially mechanical models, called orreries, that illustrate the relative positions and motions of the planets and moons in the Solar System have been built for centuries. While they often showed relative sizes, these models were usually not built to scale. The enormous ratio of interplanetary distances to planetary diameters makes constructing a scale model of the Solar System a challenging task. As one example of the difficulty, the distance between the Earth and the Sun is almost 12,000 times the diameter of the Earth.
If the smaller planets are to be easily visible to the naked eye, large outdoor spaces are generally necessary, as is some means for highlighting objects that might otherwise not be noticed from a distance. The Boston Museum of Science had placed bronze models of the planets in major public buildings, all on similar stands with interpretive labels.[1] For example, the model of Jupiter was located in the cavernous South Station waiting area. The properly-scaled, basket-ball-sized model is 1.3 miles (2.14 km) from the model Sun which is located at the museum, graphically illustrating the immense empty space in the Solar System.
The objects in such large models do not move. Traditional orreries often did move, and some used clockworks to display the relative speeds of objects accurately. These can be thought of as being correctly scaled in time, instead of distance.
Permanent true scale models
[edit]Many towns and institutions have built outdoor scale models of the Solar System. Here is a table comparing these models with the actual system.
Name | Location | Scale: 1 : … |
Sun dia. | Earth dia. | Sun–Earth | Sun–Pluto | Description |
---|---|---|---|---|---|---|---|
Actual Solar System | 1 | 1.392 Gm | 12.76 Mm | 149.6 Gm | 5.914 Tm | ||
Sweden Solar System[2] | ![]() |
20,000,000 | 71 m | 65 cm | 7,600 m | 300 km | permanent; country-wide (begun 1998) |
Solar System Drive[3][4] | ![]() |
38,000,000 | 37 m | 34 cm | 4,100 m | 205 km | permanent; drivable (est. 1997) |
Space for MUCO project[5] | ![]() |
40,000,000 | 34.8 m | 32 cm | 3,730 m | 147 km | permanent; country wide (est. 2004) |
Maine Solar System[6][7] | ![]() |
93,000,000 | 15 m | 13.7 cm | 1,600 m | 64 km | permanent; drivable (est.2003) |
Mont Megantic Dark Sky Reserve Great Solar System | ![]() |
100,000,000 | 14 m | 12.4 cm | 1,450 m | 57 km | permanent; drivable (est.2018) |
Otago Central Interplanetary Cycle Trail[8][9][10] | ![]() |
100,000,000 | 13.91 m | 12 cm | 1,496 m | 59.06 km | permanent; cyclable (est.2017) |
Riverfront Museum Solar System[11][12][13][14] | ![]() |
99,000,000 | 11 m | 10.0 cm | 1,200 m | 47 km | permanent; drivable (est. 1992?) |
Vienna Solar System | ![]() |
163,764,706 | 8.5 m | 7.78 cm | 913 m | 36 km | under construction since 2018. Physical + Augmented Reality |
Planet Lofoten | ![]() |
200,000,000 | 7 m | ? | ? | 30 km | under construction |
Planet Trek Dane County | ![]() |
200,000,000 | 7 m | 6.6 cm | 777 m | 38.3 km | permanent; fully accessible by foot and bike paths (est. 2009) |
Sunspot Solar System Model[15][16][17][18] | ![]() |
250,000,000 | 5.6 m | 5.1 cm | 1.5 m | 23.6 km | permanent, drivable |
Lethbridge Solar System Model | ![]() |
254,000,000 | 5.5 m | 5 cm | 500 m | 14.7 km (Neptune) | permanent, drivable, walkable (est. 2022) |
El Sistema Solar de la comarca de Ciudad Rodrigo | ![]() |
290,000,000 | 4.8 m | 4.4 cm | 1.2 m | 25 km | permanent, Walk & Drive |
If the Earth were a Ping-Pong ball[citation needed] | ![]() |
318,905,000 | 4.36 m | 4 cm | ? | ? | In construction; Walk & Drive (est. 2018) Centered around Deans Yard, Westminster |
Light Speed Planet Walk[19] | ![]() |
350,000,000 | ? | ? | ? | 16.6 km | permanent; drivable (est. 2005) |
Moab's Scale Model of the Solar System[20] | ![]() |
400,000,000 | 3.6 m | 2.4 cm | ? | 15.3 km | permanent; Walk and Drive (est. 2007) |
Community Solar System Trail[21][22] | ![]() |
400,000,000 | 3.5 m | 3.2 cm | 380 m | 15.3 km | permanent; drivable (established in 1997, removed in 2015) |
The Solar System to Scale | ![]() |
414,000,000 | 3.4 m | 3.1 cm | 361 m | 14.3 km | permanent; drivable; bikeable |
Solar System Stroll[23] | ![]() |
464,000,000 | 3 m | 2.7 cm | 322 m | 13 km | permanent; bikeable, drivable; under construction since 2024 |
Somerset Space Walk | ![]() |
530,000,000 | 2.5 m | ? | ? | 11 km | permanent; bikeable (est. 1997) |
York’s Solar System model | ![]() |
575,872,239 | 2.4 m | 2.2 cm | 260 m | 10.3 km | permanent; bikeable (est. 1999) |
Traverse Bay Community Solar System[24] | ![]() |
592,763,356 | 0.9 m | ? | 209 m | 10.0 km | permanent; bikeable (est. 2004) |
Michigan Solar System Model[25] | ![]() |
608,000,000 | 2.3 m | 2.1 cm | 324 m | 9.8 km | permanent; bike trail Sun and Pls. Spheres (2017) |
Solar System | ![]() |
627,000,000 | 2.2 m | 2.0 cm | 239 m | 9.42 km | permanent; bikeable; walkable; drivable (est. 2006) |
Nine Views | ![]() |
680,000,000 | 2.0 m | 1.9 cm | 225 m | 8.7 km | permanent; bikeable (est. 2004) |
Walk the Solar System | ![]() |
682,353,000 | 2.0 m | 1.9 cm | 219 m | 8.6 km | under construction |
McCarthy Observatory[26] | ![]() |
761,155,000 | 1.8 m | 1.7 cm | 195 m | 7.1 km | permanent; bikeable (est. 2009) |
Planet Walk[27] | ![]() |
781,000,000 | ? | ? | 191.5 m | 7.56 km | Walkable, bikeable (est. 2008). Part of the permanent Baltimore & Annapolis Trail. |
Trilho do Sistema Solar | ![]() |
831,000,000 | 1.675 m | 1.533 cm | 180 m | 5.42 km (Neptune) | permanent; walkable; bikeable (est. 2016) |
Planetenpad Utrecht | ![]() |
1,000,000,000 | 1.3 m | 1.3 cm | 150 m | 7.4 km (Neptune) | Leads from Centre Utrecht to Rhijnauwen, on foot, on bike or on kayak |
Model of the Solar System | ![]() |
1,000,000,000 | 1.4 m | 1.2 cm | 149.6 m | 6.1 km | permanent; bikeable |
Planetenmodell Hagen | ![]() |
1,000,000,000 | 1.4 m | 1.3 cm | 150 m | 5.9 km | permanent; bikeable (est. 1959) |
Planetenweg Schwarzbach | ![]() |
1,000,000,000 | 1.4 m | 1.3 cm | 150 m | 5.9 km | permanent; bikeable (est. 1998) |
Uetliberg Planetenweg | ![]() |
1,000,000,000 | 1.4 m | 1.3 cm | 150 m | 5.9 km | permanent; bikeable |
Planetenwanderweg | ![]() |
1,000,000,000 | 1.4 m | 1.3 cm | 150 m | 5.9 km | permanent; bikeable |
Planetary Trail | ![]() |
1,000,000,000 | 1.4 m | 1.3 cm | 150 m | 5.9 km | permanent; bikeable (est. 2005) |
Planetary Trail | ![]() |
1,000,000,000 | 1.4 m | 1.3 cm | 150 m | 13 km (Sedna as discovered) 5.9 km (Pluto) |
permanent; bike & walk; all objects above 1000km; (est. 13.5.2018) |
Melbourne Solar System[28][29] | ![]() |
1,000,000,000 | 1.4 m | 1.3 cm | 150 m | 5.9 km (Pluto) 40 140 km (Proxima Centauri) |
permanent; bikeable (est. 2008) Proxima Centauri scale distance calculated travelling Melbourne to Melbourne via the Poles.[30] |
Scale Model Solar System[31] | ![]() |
1,000,000,000 | 1.4 m | 1.2 cm | 150 m | 5.9 km | permanent; bikeable (est. 1997) |
Planetstien, Sandnes | ![]() |
1,000,000,000 | 1.4 m | 1.2 cm | 150 m | 5.9 km | permanent; walkable, bikeable (est. 2010) |
Planetstien, Lemvig | ![]() |
1,000,000,000 | 1.4 m | 1.2 cm | 150 m | 5.9 km | permanent; walkable |
Grand Trunk Pathway Solar System Model | ![]() |
1,000,000,000 | 1.4 m | 1.3 cm | 150 m | 6 km | permanent; walkable/bikeable (est. 2018) |
Planet Walk | ![]() |
1,290,000,000 | 1.1 m | 1.0 cm | 116 m | 4.6 km | permanent; walkable (est. 1995) |
Strolling at the speed of light | ![]() |
1,500,000,000 | 0.9 m | 0.8 cm | 100 m | 3 km (Neptune) | permanent; walkable (est. 2009) (temp?) |
State of the Solar System[32][33][34] | ![]() |
1,826,770,000 | 0.762 m | 0.6858 cm | 82 m | ? | permanent; walkable (est. 2016) |
Meteoria Söderfjärden | ![]() |
2,000,000,000 | 0.7 m | ? | ? | ? | permanent; walkable |
Planetenweg Göttingen | ![]() |
2,000,000,000 | 0.70 m | 0.65 cm | 75 m | 3.2 km | permanent; walkable/bikeable (est. 2013) |
Solar System Walking Tour[35][36][37] | ![]() |
2,000,000,000 | 0.7 m | 0.6 cm | 75 m | 2.9 km | permanent; walkable (est. 2000) |
Rymdpromenaden ("Spacewalk") | ![]() |
2,000,000,000 | 0.7 m | 0.6 cm | 75 m | 3 km | permanent; walkable (est. 1978) |
Montshire Museum of Science[38] | ![]() |
2,200,000,000 | 0.6 m | 0.6 cm | 68 m | 2.7 km | permanent; walkable |
Ride to Pluto: Boise's Solar System[39] | ![]() |
2,200,000,000 | 0.5 m | ? | ? | 2.4 km | permanent; walkable & bikeable |
The Solar walk[40][41] | ![]() |
2,240,000,000 | 0.6 m | 0.6 cm | 56.94 m | 2.7 km | permanent; walkable (est. 2001) |
Akaa Solar System Scale Model | ![]() |
3,000,000,000 | 0.46 m | 0.4 cm | 49.9 m | 1.958 km (Pluto) 13 370 km (Proxima Centauri) |
permanent; walkable (est. 2017), Proxima Centauri in Yulara, Australia |
Elmhurst Scale Model of the Solar System[42][43] | ![]() |
3,044,620,000 | 0.5 m | 0.4 cm | 49.1 m | 1.929 km | permanent; walk & drive (est. 2013) |
Solar System model group of sculptures | ![]() |
3,300,000,000 | 0.418 m | 0.4 cm | 45 m | 1.8 km | permanent; walkable (est. 2002) |
Milky Way path | ![]() |
3,700,000,000 | ? | ? | ? | 2.5 km | permanent; walkable |
Solar Walk | ![]() |
4,000,000,000 | 0.3 m | 0.3 cm | 37.4 m | 1.5 km | permanent; walkable (est. 2002) |
Otford Solar System Model [44] | ![]() |
4,595,700,000 | 0.3 m | 0.3 cm | 32 m | 900 m | permanent; walkable; Includes: Proxima Centauri in Los Angeles, USA; Barnard’s Star in Port Stanley, Falkland Islands; Sirius in Sydney, Australia; and Ross 154 in Christchurch, New Zealand |
Wooster Planet Walk | ![]() |
5,000,000,000 | 0.3 m | 0.3 cm | 30 m | 1.2 km | permanent; walkable (est. 2014) |
The Sagan Planet Walk | ![]() |
5,000,000,000 | 0.3 m | 0.3 cm | 30 m | 1.2 km | permanent; walkable (est. 1997) |
Delmar Loop Planet Walk | ![]() |
5,000,000,000 | 0.3 m | 0.2 cm | 30 m | 870 m (Neptune) | permanent; walkable (est. 2009) |
The Solar Walk | ![]() |
5,280,000,000 | 0.3 m | 0.2 cm | 28.4 m | 1.1 km | permanent; walkable |
Solar System Walk
An Exploration of Scale |
![]() |
5,280,000,000 | ? | ? | 28 m | 1.119 km | Located near Lake Calavera |
O Sistema Solar no Parque[45] | ![]() |
7,000,000,000 | 0.2 m | 1.8 mm | 22 m | 875 m | permanent; walkable/bikeable (est. June 3rd, 2016) |
A True Scale Model of the Solar System[46][47] | ![]() |
10,000,000,000 | 0.14 m | 0.12 cm | 15 m | 590 m | permanent; walkable (est. 2017) |
Voyage National Program [1] | ![]() National Mall, Washington, D.C. (2001) Kansas City, Missouri (2008)Space Center Houston, Texas (2008) Corpus Christi, Texas (2009)Boulder, Colorado (2021) Palo Alto, California (2022)[48][49] Broken Arrow, Oklahoma (2022) Ocala, Florida (2022) Calcasieu Parish, Louisiana (2022) Dover, New Hampshire (2023) Spokane, Washington (2022) Memphis, Tennessee (2023) Chalmette, Louisiana (2023) Jonesboro, Arkansas (2023) Troy, New York (2024) |
10,000,000,000 | 0.1 m | 0.1 cm | 15 m | 600 m | permanent; walkable; US national program |
Lake Innitou Thousand Yard Interplanetary Walk | ![]() |
10,000,000,000 | 0.23 m (bowling ball) | N/A (stone plaque) | 24 m | 932 m (1019 yd) | permanent; walkable (est. 2004); along the sidewalk by Horn Pond. |
NJ Botanical Garden | ![]() |
10,000,000,000 | 0.2 m | 2.0 cm | 23.8 m | 927 m | walkable |
Colorado Scale Model Solar System | ![]() |
10,000,000,000 | 0.1 m | 0.1 cm | 15 m | 600 m | permanent; walkable (est. 1987) |
Anstruther Model Solar System | ![]() |
10,000,000,000 | 0.1 m | 0.1 cm | 15 m | 600 m | permanent; walkable (est. 2014) |
Le Chemin Solaire | ![]() |
10,000,000,000 | 1 m | 0.1 cm | ? | 450 m | permanent; walkable (est. 2011) |
Solar Walk UofT Scarborough | ![]() |
10,000,000,000 | 0.14 m | 0.13 cm | 15 m | 591 m | permanent; walkable/bikeable (est. 2017) |
MIT's Infinite Solar System | ![]() |
30,000,000,000 | 4.6 cm | 0.43 mm | 5.0 m | 200 m | permanent; walkable (est. 2018); along "Infinite Corridor" |
Solar System Lawn Model[50] | ![]() |
105,000,000,000 | 1.32 cm | 0.12 mm | 1.42 m | 56 m | permanent; walkable; engraved in the front sidewalk |
Other models of the Solar System: historic, temporary, virtual, or dual-scale
[edit]Name | Location | Scale | Sun dia. | Earth dia. | Sun-Earth | Sun-Pluto | Description |
---|---|---|---|---|---|---|---|
Kirkhill model 1776[a] | ![]() |
1:778,268,620.8 | 1.8 m | 1.6 cm | 197 m | - | decayed |
Planetenpad Utrecht | ![]() |
1:1,000,000,000 | 1.3 m | 1.3 cm | 150 m | 7.4 km (Neptune) | Leads from Centre Utrecht to Rhijnauwen, on foot, on bike or by kayak |
Planet Walk Malta[1] | ![]() |
1:2,956,760,000 (distance) / 695,000,000 (sizes) | 2.0 m | 1.84 cm | 50.60 m | 2.0 km (Neptune) | Leads from Malta Aquarium west along promenade |
Sorghvliet | ![]() |
1:696,000,000 | 2.0 m | 1.8 cm | 215 m | 6.5 km (Neptune) | (temporary) |
Sol Chicago[51][52] | ![]() |
1:73,660,000 | 19 m | 17.3 cm | 2,050 m | 61 km (Neptune) | (temporary) proposed |
Le Chemin des planètes | ![]() |
1:1,000,000,000 | 1.4 m | 1.3 cm | 150 m | 5.9 km | uses two different scales for distance and size |
The Madison Planet Stroll[53] | ![]() |
1:4,000,000,000 | 0.3 m | 0.3 cm | 37 m | 1.5 km | (virtual) |
Solar System Stroll | ![]() |
1:5,000,000,000 | 0.3 m | 0.3 cm | 30 m | 1.2 km | permanent; walkable (est. 2016) |
The Thousand-Yard Model[54][55] | (virtual) | 1:6,336,000,000 | 0.2 m | 0.2 cm | 25 m | 1 km | The scale of the planets is the same as the scale between them, and the planets are represented by everyday objects; the Earth is a peppercorn, Jupiter is a walnut, and Neptune is a coffee bean. |
(dismantled) | ![]() |
1:10,000,000,000 | 0.1 m | 0.1 cm | 15 m | 0.6 km | (dismantled) (est. 1985) |
Lafayette Walk | ![]() |
1:6,336,000,000 | 23 cm | 0.2 cm | 25 m | 983 m | A walking demonstration of (un)imaginable distances. "It's nowhere near Graham's Number." |
Planets on the Path | ![]() |
1:2,195,000,000 | 457 m | 13.5 miles | (2015, temporary) | ||
The Solar System, to scale, for a school yard | PDF for printing | 1:11,945,400,000 | 11.6 cm | 0.1 cm | 12.5 m | 492 m | PDFs, A4 and 8½″×11″, to be printed, affixed to cards which are affixed to sticks; then to be held by children standing in a school yard. Includes major moons and asteroids. |
Naas Virtual Solar System | ![]() |
1 : 154,557,330 | 9 m | 82 mm | 968 m | 29 km (Neptune) | In Ireland, this instantly recognisable roadside spherical sculpture is well known, and is used as the model for the Sun. The website[56] maps out the planetary orbits and shows everyday objects to scale the planets (e.g. a golf ball for Mars) |
Saskatoon Solar Walk | Saskatoon, Saskatchewan | 1 : 1,275,600,000 | 109 cm | 1 cm | 110 m | 4,500 m | Personal and public art installation. |
Eise Eisinga Visvliet [57] | ![]() |
1: 870,000,000 | 160 cm | 1.5 cm | 172 m | n/a | Permanent installation honouring Eise Eisinga, the creator of the world famous Planetarium in Franeker, who lived in Visviet in 1700. As the original Planetarium only includes the planets up to Saturn, so does this one. |
Several sets of geocaching caches have been laid out as Solar System models.
See also
[edit]References
[edit]- ^ Possibly the first accurate scale model after the measurement of the astronomical unit in 1769.
- ^ "Boston Community Solar System" at Waymarking.com.
- ^ "Sweden Solar System |" (in Swedish). Retrieved 2022-09-15.
- ^ "Worlds Largest Virtual Solar System Drive". www.visitnsw.com. Retrieved 2022-09-15.
- ^ "Coonabarabran: The world's largest solar system drive". www.playingintheworldgame.com. 5 November 2012. Retrieved 2024-02-19.
- ^ "Monumental". timroosen (in Dutch). Retrieved 2024-05-15.
- ^ Bayly, Julia (2021-08-18). "Here's how you can visit the solar system in Maine, no rocket ship required". Bangor Daily News. Retrieved 2022-09-15.
- ^ "Maine Solar System Model". Maine Solar System Model. Retrieved 2022-09-15.
- ^ Jones, Pam (2017-03-16). "Solar system to scale on Rail Trail". Otago Daily Times Online News. Retrieved 2022-09-15.
- ^ Williams, Katarina (2016-11-12). "Otago Central rail trail to become 100 million to one model replica of the Solar System". Stuff. Retrieved 2022-09-15.
- ^ "An Interplanetary Ride". Otago Central Rail Trail. Retrieved 2022-09-15.
- ^ "Community Solar System Scale Model | Museum & Informal Education Alliance". informal.jpl.nasa.gov. Retrieved 2022-09-15.
- ^ Schoenheider, Jon (26 March 2022). "Interplanetary 5K takes runners across the solar system". www.25newsnow.com. Retrieved 2022-09-15.
- ^ "Community Solar System". www.peoriariverfrontmuseum.org/. Retrieved 2024-02-19.
- ^ "Peoria Scale Model of the Solar System". atlasobscura.com. Retrieved 2024-02-19.
- ^ "Sunspot Solar System Model". informal.jpl.nasa.gov. Retrieved 2024-02-19.
- ^ "Sunspot Solar System Model". Archived from the original on 2017-04-11. Retrieved 2024-02-19.
- ^ "VISITING THE SUNSPOT OBSERVATORY". sunspot.solar. 19 December 2022. Retrieved 2024-02-19.
- ^ "An Overview of Sunspot". sunspot.nmsu.edu. Retrieved 2024-02-19.
- ^ "Where to start your Planet Walk". anchorageplanetwalk.org. Retrieved 2024-02-19.
- ^ "Moab Scale Model Solar System". slideplayer.com. Retrieved 2024-02-19.
- ^ "Greater Boston used to have a scale model of the Solar System". medium.com. 15 August 2021. Retrieved 2024-02-19.
- ^ "Museum of Science Boston Community Solar System". foursquare.com. Retrieved 2024-02-19.
- ^ "Solar System Stroll website". Retrieved 2024-02-28.
- ^ "Solar System". traversetrails.org. Retrieved 2024-02-20.
- ^ "SOLAR SYSTEM SCULPTURE INSTALLMENT". midlandcountymi.gov. Retrieved 2024-02-20.
- ^ "Scale Solar System". mccarthyobservatory.org. Retrieved 2024-02-19.
- ^ "Annual Planet Walk!". www.friendsofaatrails.org. Retrieved 2024-02-19.
- ^ museumoflost (2018-04-05). "The St Kilda Solar System". The Museum of Lost Things. Retrieved 2022-09-15.
- ^ "Nick visits the Melbourne Solar System trail, finds six planets, loses Neptune and takes a surprise trip to Proxima Centauri". Observations. Retrieved 2022-09-15.
- ^ https://stkildamelbourne.com.au/wp-content/uploads/2015/11/Solar_System_Self_Guided_Trail_web_friendly.pdf
- ^ "Outer Planet Map". members.efn.org/. Retrieved 2024-02-19.
- ^ "STATE OF THE SOLAR SYSTEM". stateofthesolarsystembham.wordpress.com/. 5 October 2016. Retrieved 2024-02-19.
- ^ "State of the Solar System Poster" (PDF). cob.org/. Retrieved 2024-02-19.
- ^ "What's the Deal With: The downtown solar system?". www.cascadiadaily.com/. 25 May 2022. Retrieved 2024-02-19.
- ^ "WALKING TOUR OF OUR SOLAR SYSTEM". www.exploregeorgia.org. Retrieved 2024-02-19.
- ^ "Solar System Walking Tour" (PDF). www.exploregainesville.org. Retrieved 2024-02-19.
- ^ "Solar System Walking Tour". www.gainesville.org. Retrieved 2024-02-19.
- ^ "Planet Walk (3.0 miles roundtrip)". www.montshire.org/. Retrieved 2024-02-19.
- ^ "Greenbelt's little-known Planet Walk shows solar system's scale". www.idahostatesman.com/. Retrieved 2024-02-19.
- ^ "Solar System Walk". www.mylongview.com/. Retrieved 2024-02-19.
- ^ "SOLAR SYSTEM MAP". www.friendsofgalileo.com/. Retrieved 2024-02-19.
- ^ "Elmhurst Residents Can Boldly Go Where No One Has Gone Before". patch.com. 20 November 2013. Retrieved 2024-02-20.
- ^ "ELMHURST SOLAR SYSTEM MODEL". Archived from the original on 2016-03-05. Retrieved 2024-02-20.
- ^ "UNESCO Astronomy and World Heritage Webportal - Places connected to the Sky".
- ^ "O Sistema Solar no Parque" (in Portuguese). Archived from the original on 2023-12-03. Retrieved 2024-02-19.
- ^ "A True Scale Model of the Solar System". www2.tntech.edu. Retrieved 2024-02-20.
- ^ "Building a True Scale Model of the Solar System" (PDF). www2.tntech.edu. Retrieved 2024-02-20.
- ^ "The Voyage Scale Model Solar System". NASA Solar System Exploration. Retrieved 2022-09-15.
- ^ Bennett, J. (2020-01-01). "Voyage Mark II — Scale Model Solar Systems at Moderate Prices". American Astronomical Society Meeting Abstracts #235. 235: 239.06. Bibcode:2020AAS...23523906B.
- ^ "Solar System Lawn Model". griffithobservatory.org. Retrieved 2023-05-29.
- ^ "Sol Chicago". Archived from the original on 2011-06-25. Retrieved 2024-02-19.
- ^ "Sol Chicago". youtube.com/. Retrieved 2024-02-19.
- ^ "Welcome to The Madison Planet Stroll". www.idahostatesman.com/. Retrieved 2024-02-19.
- ^ "The Thousand-Yard Model, or, The Earth as a Peppercorn". www.universalworkshop.com. Retrieved 2023-05-29.
- ^ "The Thousand-Yard Model, or, The Earth as a Peppercorn". noirlab.edu. Retrieved 2023-05-29.
- ^ "Naas Solar System". Retrieved 2023-07-27.
- ^ Visvliet, Eise Eisinga. "Eise Eisinga Visvliet – Visvliet.com" (in Dutch). Retrieved 2024-05-09.
External links
[edit]- A list of websites related to Solar System models
- The Otford Solar System
- An accurate web-based scroll map of the Solar System scaled to the Moon being 1 pixel
- An online scale model Archived 2020-01-05 at the Wayback Machine (does not work in some browsers)
- An online 3D model
- An article on the Solar System in Maine Archived 2013-10-10 at the Wayback Machine
- An article about a temporary exhibit in Melbourne, Australia
- A map with Solar System models in Germany
- A tool to calculate the diameters and distances needed for an accurate scale model
- To Scale: The Solar System - video of model built in desert with Earth as the size of a marble.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction