English grammar

Hello
Today I have a question about English grammar.
What are the differences among these sentences?

1 There is not a car in the parking lot.
2 There is no car in the parking lot.
3 There are not  any cars in the parking lot.

I`m appreciate if you would correct my English and teach me the differences.
Thank you.

stars

Hello

Long time no see. How are you doing?

I'm doing great:)

Last night I was observing the stars on my yard.

I brought some blankets, hot cocoa and my doggy.

I lay down on a mat and watched so many beautiful stars in the sky.

Today I bought some books about stars and Greek mythology.

I can't wait to read them.

Here is a list of constellation's name in Japanese, Greek and English.

Have fun☆

牡羊座　　　　　Aries    　　　　　  the Ram

牡牛座　　　　　Taurus    　　　　　the Bull

双子座　　　　　Gemini　　　　　　 the Twins

蟹座　　　　　　Cancer　　　　　　the Crab

獅子座　　　　　Leo　　　　　　　   the Lion

乙女座　　　　　Virgo　　　　　　　the Maiden

天秤座　　　　　Libra　　　　　　　 the Scale

蠍座　　　　　　Scorpius 　　　　　 the Scorpion

射手座　　　　　Sagittarius　　　　   the Archer

山羊座　　　　　Capricorn　　　　　  the Goat-Horned

水瓶座　　　　　Aquarius　　　　　　 the Water-bearer

魚座 　　　　　　Pisces　　　　　　    the Fish