A visual treat performed by planets Mercury, Venus, Mars and Jupiter was visible today in the dawn sky background around sunrise.

Astronomer-in-charge of the Anglo-Australian Observatory in NSW, Fred Watson, accounted that the planetary show, which transpired between 5.00am and 7.00am (AEST), may occur again after 29 years.

"Perhaps the best repeat performance of this - and one that will in some ways be even better - will be when all five of the naked-eye planets come together in the early evening sky on September 8, 2040," Watson said.

On the other hand, Watson explains that Friday will not be the only opportunity to take a glimpse of the terrestrial alignment.

"It's one of these things that don’t just take place over one day. This is something that has happened over a few weeks as the planets come together in the morning sky, and it will continue for a few weeks as they gradually drift apart again," he said.

Venus is expected to be in the middle of the group, while Jupiter stays above and/or on the left side. Mercury, which will usually stay in the right side of Jupiter, appears slightly paler.

"Venus is the brightest of all the planets and stunningly bright at the moment. Jupiter is right next to it, about half a degree away," he said.

"Then the other planets, Mercury and Mars, are sort of in accompaniment - Mercury's nearer than Mars is, and Mars is the one that is nearest to the horizon at the moment. That's four of the five naked-eye planets all in a fairly close-knit community in the early morning sky. What's special about this one is that they've come together in such a tight grouping,” Watson added.

The alignment of the four planets can impact the behavior and emotions of Earth’s inhabitants, according to Astrologer Douglas Parker. His horoscope chart shows that the four members of the solar system shall remain close to each other for a week.

"Jupiter and Venus together indicate people born around this time will have film-star mannerisms, be extremely popular and have considerable artistic ability," Parker said.

"Jupiter and Mercury together indicate people born around this time will be successful in business, science or as a speaker. While Mercury and Venus together indicate people born around this time will have considerable artistic and creative ability," Parker explained.

"The Venus and Mars together in the sky indicate people born around this time will have a strong sexual magnetism and a strongly sensual nature," Parker added.

Astrologer Sarah Kulkens confirms that the alignment will impact people on Earth; however it is not all about positive emotions.

"The effect of this planet line-up has been slowly felt by many over the past few months and by the end of May people should be starting to slowly feel better," Kulken said.

On the contrary, Professor Watson claims the planetary alignment has no impact on human behavior.

"The whole science community, not just astronomy, tells us that the planets have no direct influence on anything that goes on here on Earth," Watson said.

"The ancient tradition of trying to say that planets influence people will take great notice of the alignment of the planets, but from an astronomical and scientific point of view, and might I say from a reasonable point of view, they have no impact whatsoever," Watson explained.