The 37th parallel north is a circle of latitude that is 37 degrees north of the Earth's equatorial plane. It crosses Europe, the Mediterranean Sea, Africa, Asia, the Pacific Ocean, North America, and the Atlantic Ocean. At this latitude the Sun is visible for 14 hours, 42 minutes during the summer solstice and 9 hours, 37 minutes during the winter solstice. The 37th parallel north is roughly the northern limit of the visibility of Canopus, the second-brightest star of the night sky. Along with the 37th parallel south, it is the latitude at which solar irradiance is closest to the planetary average, with higher solar irradiance equatorward and lower poleward. Around the world Starting at the Prime Meridian and heading eastward, the parallel 37° north passes through: {| class="wikitable plainrowheaders" ! scope="col" width="125" | Co-ordinates ! scope="col" | Country, territory or sea ! scope="col" | Notes |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Mediterranean Sea | style="background:#b0e0e6;" | |- | ! scope="row" | | |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Mediterranean Sea | style="background:#b0e0e6;" | |- | ! scope="row" | | |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Mediterranean Sea | style="background:#b0e0e6;" | |- | ! scope="row" | | |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Mediterranean Sea | style="background:#b0e0e6;" | Gulf of Tunis |- | ! scope="row" | | Cap Bon |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Mediterranean Sea | style="background:#b0e0e6;" | Strait of Sicily, passing just north of the island of Pantelleria, |-valign="top" | ! scope="row" | | Island of Sicily— Province of Ragusa— Province of Siracusa |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Ionian Sea | style="background:#b0e0e6;" | |- | ! scope="row" | | Peloponnese (Messenia) |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Ionian Sea | style="background:#b0e0e6;" | Messenian Gulf |-valign="top" | ! scope="row" | | Peloponnese— Messenia— Laconia |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Aegean Sea | style="background:#b0e0e6;" | Myrtoan Sea |- | ! scope="row" | | Island of Sifnos |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Aegean Sea | style="background:#b0e0e6;" | |- | ! scope="row" | | Islands of Antiparos and Paros |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Aegean Sea | style="background:#b0e0e6;" | |- | ! scope="row" | | Island of Naxos |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Aegean Sea | style="background:#b0e0e6;" | |- | ! scope="row" | |