Sky Chart For The Month of Jan, 2012
ASTRONOMICAL BULLETIN FOR JANUARY 2012
The Moon
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First Quarter occurs on 1st at h. 11-45 I.S.T. |
Full Moon occurs on 9th at h. 13 –00 I.S.T. |
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Last Quarter occurs on 16th at h. 14-38 I.S.T |
New Moon occurs on 23rd at h. 13-09 I.ST |
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First Quarter occurs on 31st at h. 09-40 I.S.T |
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The Lunar Crescent becomes first visible after the New Moon day in the evening of 24 th. |
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The Moon is at Apogee or farthest from the Earth on 3rd and 30th, and at Perigee or nearest to the Earth on 18th. |
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The Moon passes 5º north of Jupiter on 3rd, about 9º south of Mars on14th, about 6½º south of Saturn on 17th, about 5º north of Mercury on 22nd, about 6º north of Neptune in the evening of 25th, about 7º north of Venus on 27th, 6º north of Uranus on 28th, 4 ½º north of Jupiter in the evening of 30th .
The Earth
The Earth approaches the Perihelion position in its orbit or reaches nearest to the Sun on 5th.
The Planets
The Visibility of Planets
:Mercury
:The planet rises before sunrise and remains visible till the beginning of morning twilight upto 17th of the month. It rises about 1½ hours to 1 hour before sunrise during the period. Thereafter it becomes too close to the sun upto to be visible and remains so for the remaining days of the month. It approaches the Aphelion position in its orbit or reaches farthest from the Sun on 18th.Venus
:It is a brilliant object and is visible in the evening sky. It sets about 2½ hours to 3 hours after sunset throughout the month.Mars
:The planet rises before local midnight and remains visible till the beginning of morning twilight throughout the month. It rises about 2 hours to 2½ hours before local midnight upto second quarter of the month, about 2½ hours to 3 hours before it upto third quarter of the month and about 3 hours to 3½ hours before it for the remaining days of the month.. The motion of the planet becomes Retrograde with respect to the Earth on 24th.Jupiter
:The planet can be seen in the evening sky and sets around local midnight throughout the month. It sets about 1 hour after local midnight to around local midnight time upto third quarter of the month, around local midnight time to ½ hour before it for the remaining days of the month. The planet is in Quadrature with the Sun on 22nd .Saturn
:The planet rises about 1 hour to ½ hour after local midnight upto first quarter of the month, about ½ hour after local midnight to around local midnight time upto second quarter of the month, around local midnight time to ½ hour before it upto third quarter of the month and about ½ hour to 1 hour before it for the remaining days of the month. The planet is in Quadrature with the Sun on 20th.Uranus
:The planet is visible in the evening sky and sets before local midnight throughout the month. It sets about 1 hour to `1½ hours before local midnight upto first quarter of the month, about 1½ hours to 2 hours before it upto second quarter of the month, about 2 hours to 2½ hours before it upto third quarter of the month and about 2½ to 3 hours before it for the remaining days of the monthNeptune
:The planet is visible in the evening sky and sets after sunset throughout the month. It sets about 3½ hours to 3 hours after sunset upto first quarter of the month, about 3 hours to 2½ hours after it upto second quarter, of the month about 2½ hours to 2 hours after it upto third quarter of the month and about 2 hours to 1½ hours after it for the remaining days of the month.Conjunction of Planets :
Venus passes about 1º south of Neptune on 13th.
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Planets |
Planets in Zodiacal Constellation |
Magnitude |
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Mercury (Budha) |
Moves from Scorpion ( Vrishchika) to Sagittarius (Dhanus) on 4th . Moves from Sagittarius (Dhanus) to Capricorn (Makara) on 24th |
-0.4 to –0.9 |
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Venus (Sukra) |
Moves from Capricorn (Makara ) to Aquarius (Kumbha) on 9th |
-4.0 |
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Mars (Mangala) |
Remains in Leo (Simha). |
+0.1 to –0.5 |
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Jupiter (Brihaspati) |
Remains in Aries (Mesha) |
-2.6 to –2.4 |
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Saturn (Sani) |
Remains in Libra (Tula) |
+0.7 |
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Uranus |
Remains in Pieces (Mina) |
+6.0 |
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Neptune |
Remains in Aquarius (Kumbha). |
+8.0 |
Source : : Director
Positional Astronomy Centre
India Meteorological Department
Salt Lake, Kolkata - 700 091.