what are equinoxes when do they occur
Answers
Answer:
The Equinox (Vernal & Autumnal)
There are only two times of the year when the Earth's axis is tilted neither toward nor away from the sun, resulting in a "nearly" equal amount of daylight and darkness at all latitudes. These events are referred to as Equinoxes.
An equinox occurs when the position of the sun is exactly over the equator. When this happens, the hours of daylight and the hours of darkness are about equal almost everywhere on Earth. Equinoxes take place twice a year. Autumn, or fall, begins with the autumnal equinox.
20 March and 23 September.
ᴡʜᴀᴛ ᴀʀᴇ ᴇϙᴜɪɴᴏxᴇs??
Eᴠᴇʀʏ sɪx ᴍᴏɴᴛʜs, ᴏɴᴄᴇ ɪɴ Mᴀʀᴄʜ ᴀɴᴅ ᴀɢᴀɪɴ ɪɴ Sᴇᴘᴛᴇᴍʙᴇʀ, ᴀɴ ᴇϙᴜɪɴᴏx sᴘʟɪᴛs Eᴀʀᴛʜ’s ᴅᴀʏ ᴀʟᴍᴏsᴛ ɪɴ ʜᴀʟғ, ɢɪᴠɪɴɢ ᴜs ᴀʙᴏᴜᴛ 12 ʜᴏᴜʀs ᴏғ ᴅᴀʏʟɪɢʜᴛ ᴀɴᴅ 12 ᴏғ ɴɪɢʜᴛ.
Oɴ Mᴀʀᴄʜ 19, 2020, ɴᴀᴛᴜʀᴇ ᴡɪʟʟ ᴏɴᴄᴇ ᴀɢᴀɪɴ ʙʀɪɴɢ ᴜs ᴛʜᴇ ᴠᴇʀɴᴀʟ ᴇϙᴜɪɴᴏx, ᴛʜᴇ ᴛɪᴍᴇ ᴏғ ʏᴇᴀʀ ᴛʜᴀᴛ ᴜsʜᴇʀs ɪɴ sᴘʀɪɴɢ ɪɴ ᴛʜᴇ Nᴏʀᴛʜᴇʀɴ Hᴇᴍɪsᴘʜᴇʀᴇ ᴀɴᴅ ᴀᴜᴛᴜᴍɴ ɪɴ ᴛʜᴇ Sᴏᴜᴛʜᴇʀɴ Hᴇᴍɪsᴘʜᴇʀᴇ. Tʜᴇɴ, ᴏɴ Sᴇᴘᴛᴇᴍʙᴇʀ 22, ᴛʜᴇ ᴀᴜᴛᴜᴍɴᴀʟ ᴇϙᴜɪɴᴏx ᴡɪʟʟ sɪɢɴᴀʟ ᴛʜᴇ ᴄᴏᴍɪɴɢ ᴏғ ғᴀʟʟ ғᴏʀ ᴛʜᴇ Nᴏʀᴛʜ ᴀɴᴅ ᴛʜᴇ sᴛᴀʀᴛ ᴏғ sᴘʀɪɴɢ ғᴏʀ ᴛʜᴇ sᴏᴜᴛʜᴇʀɴ ᴘᴀʀᴛ ᴏғ ᴛʜᴇ ᴡᴏʀʟᴅ.
Wʜʏ ᴅᴏ ᴇϙᴜɪɴᴏxᴇs ʜᴀᴘᴘᴇɴ?
Oᴜʀ ᴘʟᴀɴᴇᴛ ɴᴏʀᴍᴀʟʟʏ ᴏʀʙɪᴛs ᴛʜᴇ sᴜɴ ᴏɴ ᴀɴ ᴀxɪs ᴛʜᴀᴛ’s ᴛɪʟᴛᴇᴅ 23.5 ᴅᴇɢʀᴇᴇs, ᴍᴇᴀɴɪɴɢ ᴛʜᴀᴛ ᴛʜᴇ ʜᴇᴍɪsᴘʜᴇʀᴇs ᴛʀᴀᴅᴇ ᴏғғ ɢᴇᴛᴛɪɴɢ ᴍᴏʀᴇ ᴡᴀʀᴍᴛʜ ғʀᴏᴍ ᴛʜᴇ sᴜɴ. Tᴡᴏ ᴛɪᴍᴇs ᴀ ʏᴇᴀʀ, Eᴀʀᴛʜ’s ᴏʀʙɪᴛ ᴀɴᴅ ɪᴛs ᴀxɪᴀʟ ᴛɪʟᴛ ᴄᴏᴍʙɪɴᴇ sᴏ ᴛʜᴀᴛ ᴛʜᴇ sᴜɴ sɪᴛs ʀɪɢʜᴛ ᴀʙᴏᴠᴇ Eᴀʀᴛʜ’s Eϙᴜᴀᴛᴏʀ, ᴄᴀsᴛɪɴɢ ᴛʜᴇ ᴅɪᴠɪᴅɪɴɢ ʟɪɴᴇ ʙᴇᴛᴡᴇᴇɴ ᴛʜᴇ ʟɪɢʜᴛ ᴀɴᴅ ᴅᴀʀᴋ ᴘᴀʀᴛs ᴏғ ᴛʜᴇ ᴘʟᴀɴᴇᴛ—ᴛʜᴇ sᴏ-ᴄᴀʟʟᴇᴅ ᴛᴇʀᴍɪɴᴀᴛᴏʀ, ᴏʀ ᴛᴡɪʟɪɢʜᴛ ᴢᴏɴᴇ—ᴛʜʀᴏᴜɢʜ ᴛʜᴇ Nᴏʀᴛʜ ᴀɴᴅ Sᴏᴜᴛʜ Pᴏʟᴇs.
Tʜᴇ ᴛᴇʀᴍɪɴᴀᴛᴏʀ ᴅᴏᴇsɴ’ᴛ ᴘᴇʀғᴇᴄᴛʟʏ ᴅɪᴠɪᴅᴇ ᴛʜᴇ ᴘʟᴀɴᴇᴛ ɪɴᴛᴏ ᴅᴀʀᴋ ᴀɴᴅ ʟɪɢʜᴛ; Eᴀʀᴛʜ’s ᴀᴛᴍᴏsᴘʜᴇʀᴇ ʙᴇɴᴅs sᴜɴʟɪɢʜᴛ ʙʏ 37 ᴍɪʟᴇs (60 ᴋɪʟᴏᴍᴇᴛᴇʀs), ᴡʜɪᴄʜ ᴇϙᴜᴀʟs ʜᴀʟғ ᴀ ᴅᴇɢʀᴇᴇ. Tʜᴀᴛ ᴍᴇᴀɴs ᴏɴᴇ ʜᴀʟғ ᴏғ ᴛʜᴇ ᴘʟᴀɴᴇᴛ ɪs sᴛɪʟʟ ᴀ ʟɪᴛᴛʟᴇ ᴍᴏʀᴇ ʟɪᴛ ᴛʜᴀɴ ᴛʜᴇ ᴏᴛʜᴇʀ, ᴇᴠᴇɴ ᴏɴ ᴀɴ ᴇϙᴜɪɴᴏx.
Eᴀʀᴛʜ ɪsɴ’ᴛ ᴛʜᴇ ᴏɴʟʏ ᴘʟᴀɴᴇᴛ ᴛʜᴀᴛ ᴇxᴘᴇʀɪᴇɴᴄᴇs ᴇϙᴜɪɴᴏxᴇs: Eᴠᴇʀʏ ᴘʟᴀɴᴇᴛ ɪɴ ᴏᴜʀ sᴏʟᴀʀ sʏsᴛᴇᴍ ʜᴀs ᴛʜᴇᴍ. Iɴ 2009, ᴛʜᴇ Cᴀssɪɴɪ ᴘʀᴏʙᴇ ɪɴ ᴏʀʙɪᴛ ᴀʀᴏᴜɴᴅ Sᴀᴛᴜʀɴ ᴄᴀᴘᴛᴜʀᴇᴅ ᴀɴ ᴇϙᴜɪɴᴏx ᴏɴ ᴛʜᴇ ʀɪɴɢᴇᴅ ᴘʟᴀɴᴇᴛ. As ᴏɴ Eᴀʀᴛʜ, ᴇϙᴜɪɴᴏxᴇs ᴏᴄᴄᴜʀ ᴇᴠᴇʀʏ ʜᴀʟғ-ʏᴇᴀʀ ᴏɴ Sᴀᴛᴜʀɴ, ʙᴜᴛ ᴛʜᴀᴛ ᴇϙᴜᴀʟs 15 ʏᴇᴀʀs ᴏɴ Eᴀʀᴛʜ, ᴍᴀᴋɪɴɢ Cᴀssɪɴɪ's ᴘʜᴏᴛᴏ sᴇssɪᴏɴ ᴀ ᴜɴɪϙᴜᴇ ᴇᴠᴇɴᴛ.