What is the range of declinations that

1

• What is the range of declinations that
• can be seen from latitude 20º?

2
Declination Slider Polaris
90
20
20
Answer -70 to 90 deg
-70
-90
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2) What is the range of declinations, which is
circumpolar from latitude 20º?
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Declination Slider Polaris
90
20
20
Answer 70 to 90 deg
-70
-90
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3) What is the furthest north that can be seen
from latitude -43º ?
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Declination Slider Polaris
90
45
-45
Answer 47º because 90 43 47
-45
-90
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4) What is the furthest south that an observer
at latitude at latitude -63º can see?
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Declination Slider Polaris
90
25
-65
Answer -90 deg
-65
-90
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5) If you are at latitude 32º, what is the range
of declinations that are circumpolar ?
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Declination Slider Polaris
90
30
30
Answer 58 deg to 90 deg
-60
-90
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6) When the altitude of the North Celestial Pole
is 14 º, where are you?
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Declination Slider Polaris
90
15
15
Answer 14 deg N latitude
-75
-90
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7) If you are at latitude -30 º, what is the
altitude of the SCP? of the NCP?
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Declination Slider Polaris
90
60
-30
-30
Answer NCP -30 deg alt SCP 30 deg alt
-90
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8) What is the furthest south latitude you can be
so that the star Vega will be circumpolar for
you? Need declination of Vega! Also, the
question is a little misleading.
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I went to Wikipedia Castle Notes Look up Lyra
in the constellation list. We will use 36
degrees North Declination to match the answer In
the Castle notes. She often gets the declination
from the constellation, not the exact star.
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Declination Slider Polaris
90
55
55
Answer 54 deg North Declination assuming
Vega is at 36 deg North Declination
-35
-90
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9) What is the range of declinations that are
visible from -60º ?
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Declination Slider Polaris
90
30
-60
Answer -90 deg decl. to 30 deg decl.
-60
-90
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10) Regulus is circumpolar. It just grazes the
horizon at its lowest point, what is your
latitude?
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I went to Wikipedia Castle Notes Look
up Regulus or Leo in the constellation list. We
will use 12 degrees North Declination which
matches the answer in the Castle notes.
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Declination Slider Polaris
90
80
80
-10
Regulus at 12 deg decl. Observer at 78 deg
lat.
-90
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11) You are lost at sea. Antares just comes
above the horizon at culmination(its highest
point), What is your latitude?
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Look on Mercator Map in the Castle Notes I went
to Wikipedia Castle Notes Look up Antares or
Scorpius in the constellation list. We will use
-26.5 degrees South Declination which matches
the answer in the Castle notes.
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Declination Slider Polaris
90
65
65
-25
Antares at -26.5 deg decl. Observer at 63.5
deg lat.
-90
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12) If you notice that Betelgeuse is circumpolar,
but nothing further south is, what is your
latitude?
27
Look on Mercator Map in the Castle Notes I went
to Wikipedia Castle Notes Look up Betelgeuse
or Orion in the constellation list. We will use
7 degrees North Declination which matches the
answer in the Castle notes.
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Declination Slider Polaris
90
80
80
-10
Betelgeuse at 7 deg decl. Observer at 83 deg
lat.
-90
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13) If Deneb just rises and nothing further
north is visible, what is your latitude? Nothing
further north is visible means that You are to
the south of it!
30
Look on Mercator Map in the Castle Notes I went
to Wikipedia Castle Notes Look up Deneb or
Cygnus in the constellation list. We will use
45 degrees North Declination which matches the
answer in the Castle notes.
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Declination Slider Polaris
90
45
-45
-45 deg south Latitude for observer
-45
-90
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Already looked up Antares for another
question. We will use -26.5 degrees South
Declination which matches the answer in the
Castle notes.
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Declination Slider Polaris
90
25
-65
Observer at -63.5 deg south latitude
-65
-90
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15) What latitude allows the observer to see the
largest variety of celestial objects?
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Declination Slider Polaris
90
0
0
-90