Scutum the Shield
A
faint constellation between Aquila and Serpens, introduced in the
1680s by the Polish astronomer Johannes
Hevelius under the title Scutum Sobieski. This was to honour King
John Sobieski of Poland who defeated the Ottoman army at the battle
of Vienna in 1683.
Scutum
is rich in star fields but there are few right stars visible to the
naked eye.
Alpha
magnitude 3.8 is a K3 giant star with a temperature of 4,000’C, it
is 199 light years away.
Delta
is a F2 giant star with a temperature of 7,000’C and is 202 light
years away. Delta is the lead star in the delta Scutum class of
variable stars varying slightly between magnitude 4.7-4.8.
M11
the Wild Duck cluster, is just visible to the naked eye under the
best conditions. it gets its name because of its noticeable fan
shape which resembles a flight of wild ducks.
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