AP 23

Asteroid (51) Nemausa

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Discovered by Laurent in 1858; mag 9.9, in Sextans; diameter 85 ml, Earth distance 115m miles. With (a) mag 6.6 HIP 51538. Feb 21 2018, 0004 UT; 4 days before opposition. [31st observed asteroid]

Venus, Mercury, Moon Gathering

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1916 UT, Mar 8 2018 – Venus; mag -3.4, distance 155m miles, and Mercury; mag -0.8, distance 100m miles. Separation 2.7°. Conjunction occurred on March 5th. Below – two images of the 2 day 7 hr Moon 10° from Venus, Mar 19 2018, 1942 and 1959 UT. Mercury marked ‘M’.

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V392 Per Outburst

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Rare incidence of a dwarf nova undergoing a classical nova eruption. Normally ~15th magnitude, V392 Per rocketed to mag 6.2 on Apr 29 2018; seen here at est mag 6.3 at 0102 IST, Apr 30. With mag 5.7 HIP 21823 and mag 6.7 HIP 22041 in Perseus. These events in the nova cycle are expected to recur on timescales of 10,000 to 1 million years. [5th observed Nova]

ISS Solar Transit

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As predicted, at 122737 IST on Jun 26 2018, the International Space Station with six crew on board transits the Sun in just over half a second. Distance 300 miles, speed 17,200 mph. The Station is seen to enter at the ~2 o’c position and exit at the ~7 o’c. Above, actual speed; below, half speed.

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