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#astronomy Venus dazzles at nightfall and closes in on Neptune – Astronomy Now

January 15, 2020 - Comment

This looping animation depicts a southwesterly view one hour after sundown from 13–31 January 2020 at two-day intervals as seen from the guts of the UK. Dazzling magnitude -Four.1 Venus passes simply Four arcminutes (one-fifteenth of a level) south of Neptune at 8pm GMT on Monday, 27 January 2020, so each planets will slot in the identical high-power telescope view


This looping animation depicts a southwesterly view one hour after sundown from 13–31 January 2020 at two-day intervals as seen from the guts of the UK. Dazzling magnitude -Four.1 Venus passes simply Four arcminutes (one-fifteenth of a level) south of Neptune at 8pm GMT on Monday, 27 January 2020, so each planets will slot in the identical high-power telescope view from 6pm GMT till they set. Don’t miss magnitude +Four.2 naked-eye star Phi (φ) Aquarii that lies inside zero.9° east of magnitude +7.9 Neptune all through the interval. Observe that the Moon’s obvious dimension on 27 and 29 January is enlarged for readability. AN animation by Ade Ashford.Even informal skywatchers can’t fail to see brightest planet Venus presently hanging like a lantern above the southwest horizon at nautical nightfall, round 90 minutes after sundown for the centre of the British Isles. On 11 January, Venus crossed the constellation border into Aquarius the place it resides for the rest of the month. Between now and the start of February, observers also can see Venus shut the hole on its most distant planetary sibling, Neptune, till the pair attain an in depth conjunction on 27 January 2020.Venus passes one-fifteenth of a level south of Neptune at 8pm GMT at 27 January 2020, however the pair can be very low within the UK sky. Observers within the British Isles are suggested to take a look at 6pm GMT across the onset of nautical twilight when the 2 planets are about 19° excessive within the southwest. Their separation is barely greater than 7 arcminutes right now. On this simulated one-degree telescope subject of view the magnification is 40-50×. AN graphic by Ade Ashford.Whereas there’ll no problem in figuring out Venus in your telescope on the night of 27 January, Neptune could show slightly tougher to see within the glare of its planetary sibling. Their distinction quantities to a whopping 12 magnitudes, which is one other manner of claiming that Venus is 63,000 occasions brighter than Neptune! If the outermost planet is misplaced in Venus’ dazzle, attempt to spot magnitude +Four.2 star Phi (φ) Aquarii in the identical subject of view proven above. Neptune passes simply 2¼ arcminutes north of the star at eight:15pm GMT (20:15 UT) on 10 February 2020, however I’ll cowl that in additional element nearer the time.

If you happen to do reach viewing Venus and Neptune in the identical telescope subject of view, do keep in mind that their obvious proximity is merely a line of sight impact. On the night of 27 January, Venus lies slightly greater than 167 million kilometres (or 1.117 astronomical models) from Earth, however outermost planet Neptune is a staggering Four,590 million kilometres (or 30.683 astronomical models) distant.



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