Tapinophobia.
The fear of thorns falls under the phobia concerning sharp or "pointy" objects, known as aichmophobia. This phobia is sometimes known as belonephobia or enetophobia. The fear itself, however, mostly refers to the fear of needle-like objects.
Aichmophobia- Fear of needles or pointed objects
Fear of small objects is tapinophobia.
Megastrophobia is defined as a fear of large celestial objects, such as stars, planets, or black holes. It is a specific phobia related to space and astronomy. People with megastrophobia may experience anxiety, panic attacks, or avoidance behaviors when exposed to images or discussions about these objects.
Trypanophobia: Fear of Injections - Aichmophobia: Fear of needles or pointed objects
Phobia
Leukophobia- the fear of the color whiteMelanophobia- fear of the color blackThere is no phobia for exact objects with these colors. I hope i helped with your question
Large dense objects, and the closest objects.
From Webster's dictonarypho·bianoun \ˈfō-bē-ə\ Definition of PHOBIA: an exaggerated usually inexplicable and illogical fear of a particular object, class of objects, or situation
Simple phobia/specific phobia, social phobia and agoraphobia are indeed all anxiety disorders.
Belonephobia is the fear of pointed objects, but not of of pointed objects pointed in your direction.
Heat, anything from hot weather to hot objects. It's not really a very specific phobia.