B612 scaled one in forty

This is the iconic asteroid or "planet" from the novel Le Petit Prince (The Little Prince) by Antoine de Saint-Exupéry. I designed this using MATLAB R2016a on a topographical map I create by myself, using some book cover arts as guide. I didn't read the book, so some details may be wrong or may be absent. The baobab trees were created using Customizer, customised from this, and later processed with Windows 3D Builder. I made them as smaller versions of the adult tree, although a 30cm juvenile doesn't look like that. A 2 meter diameter asteroid like this one would blow up in a short bolide if it enters the atmosphere.
The model is scaled in five scales: 1:10 , 1:15 , 1:20 , 1:32 (G-scale), 1:40. In the smaller scales the stems of the trees may not be printed; support is always needed for the trees and the glass. The file's names must be read like this: b612_1_x_.stl is 1 : x . So _1_20 is 1:20 or one in twenty.

The baobab tree generated with Customizer (left) and its softened and elongated version (right)


I spend part of my time making these models, letting them available and free for everyone. If you want to support my work, you can contribute with me here:






Other astronomical objects



Object


Scale [1:x]
K = 103 (thousand)M = 106 (million)G = 109 (billion)


Image




Inner Solar System



Mercury
20M, 60M,
120M



Venus
60M,
120M,
250M



Earth
60M,
120M,
250M



Luna
10M, 20M,
60M



Mars
20M, 60M,
120M



Phobos and Deimos
200K,
500K




Artificial



Salyut 7
40, 48, 80, 160




Near Earth Asteroids



Moshup and Squannit
8K,
20K,
40K



Ra-Shalom
20K,
40K



Castalia
8K,
20K,
40K



Bacchus
8K,
20K



Bennu
3K,
8K



Ryugu
3K, 8K,
20K



Geographos
40K,
80K



Phaethon
40K,
80K



Itokawa
3K,
8K



Eros
80K, 200K,
500K



Nereus
3K,
8K



Mithra
20K,
40K



Golevka
8K



Toutatis
40K,
80K




Main Asteroid Belt




Gaspra
200K



Annefrank
40K,
80K



Braille
20K,
40K



Vesta
2M, 4M,
10M



Šteins
40K,
80K,
200K



Iris
2M,
4M



Hebe
1M,
2M,
4M



Lutetia
500K, 1M,
2M



Julia
1M,
2M,
4M



Mathilde
500K,
1M



Juno
2M,
4M



Ceres
4M,
10M



Pallas
4M,
10M



Kleopatra
2M,
4M



Ida
500K,
1M

Using the following options:

maximum_branching_iterations = 4
trunk_radius = 27
min_number_of_branches_from_each_branch = 3
max_number_of_branches_from_each_branch = 4
start_budding_position = 80
stop_budding_position = 100
branch_twist_angle = 60
branches_keep_growing = 0
branch_cross_section_shape = 0
base_shape = 32
allow_all_overhangs = 0
allowed_overhang_angle = 40
seed = 35
use_advanced_settings = 0
root_min_ratio = 65
root_max_ratio = 60
tip_min_ratio = 56
tip_max_ratio = 70
length_min_ratio = 70
length_max_ratio = 100
min_branching_angle = 95
max_branching_angle = 55
branch_diameter_cutoff = 1.6
trunk_length = 60