Spectator on facebook

Spectator on facebook

UPDATED: 10. MAY 2016, AT 14:09

The transit of Mercury across the Sun seen also in Slovakia

The transit of Mercury across the Sun on the afternoon of May 9 will be visible also in Slovakia.

Image by NASA and the ESA's Solar and Heliospheric Observatory of an earlier (2006) Mercury transit.(Source: AP/TASR)

This rare phenomenon occurs about 13 times in a century. The next chance will be in November 2019 but it will be only partially visible. The next fully visible transit will take place in 2032.

The spectacle begins at 13:12 on May 9 and ends at 20:40. i.e. after sunset, the TASR newswire wrote. “Observers from western Slovakia are slightly advantaged against those in the east, as in the west the Sun sets down 23 minutes later,” Pavol Rapavý of the Slovak Association of Astronomers told TASR. “As the angular diameter of Mercury is small, we will not be able to see it without a telescope, as it will be 157-times smaller than the seeming diameter of the Sun.”

The safest way to observe the phenomenon is a projection in a darkened room. “With the Sun having a diameter of 25 centimetres, Mercury will be a small black disc with a diameter of only 1.6 millimetres,” Rapavý said. “If we want to observe it directly, we put a good-quality filter in front of the telescope objective lens, e.g. the visual foil Astrosolar. The recommended minimal magnification is 50 times.” 

Top stories

Quidditch becomes reality in Slovakia as first teams emerge Video

The wizard sport, fighting for its status in the real sports world, has won the hearts of some Slovaks.

Robert Fico is not Saddam Hussein

It would take too long to list all the crazy distortions the international media presented about Central Europe and the Czech election campaign this week.

Babiš

Top stories from Last Week in Slovakia Video

Voters’ indifference affects regional votes - Can Slovaks be lured back from Britain? - Petit Press majority owner dies

Foreigners: Top 10 events in Bratislava Video

Tips for the top 10 events in the capital between October 20 and October 29, plus regular services in different languages, training, temporary exhibitions and highlights of the year.

International Halloween Party