Close approach of Venus and Saturn

Dominic Ford, Editor
From the Appulses feed

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The planets Venus and Saturn will make a close approach, passing within 2°59' of each other.

From Columbus , the pair will be difficult to observe as they will appear no higher than 13° above the horizon. They will become visible at around 19:05 (EST), 13° above your south-western horizon, as dusk fades to darkness. They will then sink towards the horizon, setting 2 hours and 4 minutes after the Sun at 20:36.

Venus will be at mag -4.0; and Saturn will be at mag 0.4. Both objects will lie in the constellation Ophiuchus.

They will be too widely separated to fit within the field of view of a telescope, but will be visible to the naked eye or through a pair of binoculars.

At around the same time, the pair will also share the same right ascension – called a conjunction.

A graph of the angular separation between Venus and Saturn around the time of closest approach is available here.

The positions of the pair at the moment of closest approach will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
Venus 16h48m50s 24°04'S Ophiuchus -4.0 13"8
Saturn 16h51m00s 21°07'S Ophiuchus 0.4 15"3

The coordinates above are given in J2000.0. The pair will be at an angular separation of 37° from the Sun, which is in Virgo at this time of year.

The sky on 29 Oct 2016

The sky on 29 October 2016
Sunrise
07:56
Sunset
18:32
Twilight ends
20:04
Twilight begins
06:24


Waning Crescent

0%

28 days old

Planets
Rise Culm. Set
Mercury 08:04 13:19 18:35
Venus 11:09 15:45 20:21
Moon 06:49 12:36 18:17
Mars 13:56 18:34 23:11
Jupiter 05:46 11:38 17:31
Saturn 11:00 15:48 20:36
All times shown in EDT.

Source

The circumstances of this event were computed using the DE430 planetary ephemeris published by the Jet Propulsion Laboratory (JPL).

This event was automatically generated by searching the ephemeris for planetary alignments which are of interest to amateur astronomers, and the text above was generated based on an estimate of your location.

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25 Aug 2017  –  Saturn ends retrograde motion

Image credit

The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.

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