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Sky Chart For The Month of May, 2021

 

ASTRONOMICAL BULLETIN FOR MAY 2021


The Moon

       Last Quarter occurs on 4th  at h. 01-20  I.S.T. 

New Moon occurs on 12th  at h. 00-30 I.S.T.

       First Quarter occurs on 20th  at h. 00-43 I.S.T.

        Full Moon occurs on 26th at h. 16-44 I.S.T.

 

                  The Lunar Crescent becomes first visible after the New Moon day in the evening of 13th.

The Moon is at Apogee or farthest from the Earth on 12th and at Perigee or nearest to the Earth on 26th

 

 

The Moon passes about 4° south of Saturn on 3rd, about 4½° south of Jupiter after midnight of 4th i.e. on 5th, about 4½° south of Neptune on 6th, about 2½° south of Uranus on 11th, about   ½° south of Venus and about 2° south of Mercury on 13th, about 1½º north of Mars on 16th and about 4° south of Saturn on 31st.

 

The Planets

Visibility of Planets:

MercuryThe planet sets about 1 hour to 1½ hours after sunset upto third quarter of the month and about 1½ hours to 1 hour after sunset for remaining days of the month. It is in Greatest Eastern Elongation of about 22º from the Sun on 17th. The motion of the planet becomes Retrograde with respect to the Earth on 30th.

Venus:  The planet is a brilliant object visible in the western sky after sunset and sets about ½ hour to 1½ hours after sunset during the month.

Mars:   The planet is visible in the western sky after sunset and sets about 2 hours to 2½ hours before local midnight throughout the month.

JupiterThe planet  rises about 1½ hours to ½ hour after local midnight upto second quarter of the month, from about ½ hour after it to close to local midnight time upto third quarter of the month and from close to local midnight time to ½ hour before it for the remaining days of the month. The planet is in Quadrature with the Sun on 21st.

Saturn: The planet rises from about ½ hour after local midnight to close to it upto first quarter of the month. Thereafter it rises from close to local midnight time to ½ hour before it upto second quarter of the month, about ½ hour  to 1 hour before it upto third quarter of the month and about 1 hour to 1½ hours before it for the remaining days of the month. The planet is in Quadrature with the Sun on 3rd. The motion of the planet becomes Retrograde with respect to the Earth on 23rd.

 

Uranus: The planet is too close to the Sun to be visible upto third quarter of the month, being in Conjunction with the Sun on 1st . Thereafter it becomes visible and rises about 1 hour to 1½ hours before sunrise for the remaining days of the month.

Neptune:  The planet rises after local midnight and remains visible till the beginning of morning twilight throughout the month. It rises about 2½  hours to 2 hours after local midnight upto first quarter of the month, about  2 hours to 1½ hours after it upto third quarter of the month, about 1½ hours to 1 hour  after it for the remaining days of the month.

Conjunction of Planets:

Mercury passes about 8º north of Aldebaran (Rohini) on 11th   

Venus passes about 6º north of Aldebaran (Rohini) on 18th.

Mercury passes about ½° south of Venus on 29th.

 

 

Planets

Planets in Zodiacal Constellation

Magnitude

Mercury (Budha)

Moves from Aries (Mesha) to Taurus (Vrisha) on 1st .

Moves from Taurus (Vrisha) to Gemini (Mithuna) on 26th.

-1.1 to 0.0

 0.0 to +2.8

Venus (Sukra)

Moves from Aries (Mesha ) to Taurus (Vrisha) on 4th .

Moves from Tauras (Vrisha) to Gemini (Mithuna) on 29th.

- 3.9 to -3.8

Mars (Mangala)

Remains in Gemini (Mithuna).

+1.6 to + 1.7

Jupiter (Brihaspati)

Remains in Aquarius (Kumbha).

–2.2 to – 2.4

Saturn (Sani)

Remains in Capricornus (Makara).

+0.7 to +0.6

Uranus

Remains in Aries (Mesha).

+6.0

Neptune

Remains in Aquarius (Kumbha).

+8.0


 

Source : : Director

Positional Astronomy Centre

India Meteorological Department

Salt Lake, Kolkata - 700 091.