The Moon and Collinder 50 will make a close approach, passing within a mere 46.0 arcminutes of each other. The Moon will be 10 days old.
From Cambridge , the pair will be visible in the evening sky, becoming accessible around 17:33 (EST), 51° above your south-eastern horizon, as dusk fades to darkness. They will then reach their highest point in the sky at 19:42, 63° above your southern horizon. They will continue to be observable until around 01:35, when they sink below 11° above your western horizon.
The Moon will be at mag -12.5; and Collinder 50 will be at mag 1.0. Both objects will lie in the constellation Taurus.
They will be a little too widely separated to fit comfortably within the field of view of a telescope, but will be visible to the naked eye or through a pair of binoculars.
A graph of the angular separation between the Moon and Collinder 50 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 |
| The Moon | 04h26m20s | 16°45'N | Taurus | -12.5 | 32'33"7 |
| Collinder 50 | 04h27m00s | 16°00'N | Taurus | 1.0 | 0"0 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 120° from the Sun, which is in Capricornus at this time of year.
The sky on 27 Jan 2018
| The sky on 27 January 2018 | ||||||||||||||||||||||||||||||||||
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80% 10 days old |
All times shown in EST.
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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.
Image credit
The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.