ASTRONOMICAL BULLETIN FOR JULY 2023
The Moon
Full Moon occurs on 3rd at h 17-09 I.S.T.
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Last Quarter occurs on 10th at h 07-18 I.S.T.
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New Moon occurs on 18th at h 00-02 I.S.T.
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First Quarter occurs on 26th at h. 03-37 I.S.T.
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The Lunar Crescent becomes first visible after the New Moon day in the evening of 19th.
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The Moon is at Perigee or nearest to the Earth on 5th and at Apogee or farthest from the Earth on 20th.
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The Moon passes about 2½º south of Saturn on 7th, about 1½º south of Neptune on 08th, about 2º north of Jupiter on 12th after midnight, about 2½º north of Uranus on 12th, about 4º north of Mercury on 19th, about 8º north of Venus on 20th, about 3½º north of Mars on 21st.
The Earth
The Earth approaches the Aphelion position in its orbit or reaches farthest from the Sun on 7th.
The Planets
Visibility of Planets:
Mercury: The planet is too close to the sun to be visible upto 10th of the month. On 11th it become visible in the western sky, it sets about ½ hour to 1 hour after sunset upto second quarter of the month and about 1 hour to 1½ hours after it for the remaining days of the month. The planet is in Superior Conjunction with Sun on 1st.
Venus: The planet sets about 2½ hours to 2 hours after sunset upto second quarter of the month, about 2 hours to 1½ hours after it upto 3rd quarter of the month and about 1½ hours to 1 hour after it for the remaining days of the month. The motion of the planet becomes Retrograde with respect to the Earth from 23rd.
Mars: The planet sets after sunset throughout the month. It sets about 3 hours to 2½ hours after sunset upto second quarter of the month and about 2½ hours to 2 hours after it for the remaining days of the month.
Jupiter: 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 close to local midnight upto 3rd quarter of the month and close to local midnight to about ½ hour before it for the remaining days of the month.
Saturn: The planet 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.
Uranus: The planet rises after local midnight throughout the month. It rises about 2 hours to 1½ hours after local midnight upto first quarter of the month, about 1½ hours to 1 hour after it upto second quarter of the month, about 1 hour to ½ hour after it upto third quarter of the month and ½ hour to too close to local midnight for the remaining days of the month.
Neptune: The planet rises 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, about 2½ hours to 3 hours before it for the remaining days of the month.
Conjunction of Planets:
Mercury passes about 5º south of Pollux (Punarvasu) on 8th.
Mars passes about 10 north of Regulus (Magha) on 10th.
Mercury passes about 5½º north of Venus on 26th.
Mercury passes just south of Regulus (Magha) on 29th..
Planets
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Planets in Zodiacal Constellation
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Magnitude
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Mercury (Budha)
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Moves from Gemini (Mithuna) to Cancer(Karkata) on 8thJuly.
Moves from Cancer(Karkata) to Leo (Simha) on 24th July.
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- 2.2 to 0.0
0.0 to + 0.1
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Venus (Sukra)
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Moves from Cancer(Karkata) to Leo (Simha) on 6th July.
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- 4.7 to - 4.4
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Mars (Mangala)
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Remains in Leo (Simha).
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+ 1.7 to + 1.8
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Jupiter (Brihaspati)
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Remains in Aries (Mesha)..
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–2.2 to –2.3
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Saturn (Sani)
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Remains in Aquarius (Kumbha).
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+0.7 to +0.5
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Uranus
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Remains in Aries (Mesha).
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+6.0
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Neptune
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Remains in Pisces (Mina).
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+8.0
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Source : : Head
Positional Astronomy Centre
India Meteorological Department
Salt Lake, Kolkata - 700 091.