Close approach of the Moon and Collinder 50

Dominic Ford, Editor
From the Appulses feed

Tags: Appulse

The Moon and Collinder 50 will make a close approach, passing within a mere 23.9 arcminutes of each other. The Moon will be 8 days old.

From Cambridge , the pair will be visible in the evening sky, becoming accessible around 17:44 (EST), 58° above your south-eastern horizon, as dusk fades to darkness. They will then reach their highest point in the sky at 19:06, 63° above your southern horizon. They will continue to be observable until around 00:58, when they sink below 11° above your western horizon.

The Moon will be at mag -12.3; and Collinder 50 will be at mag 1.0. Both objects will lie in the constellation Taurus.

They will be close enough to fit within the field of view of a telescope, but will also 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 04h26m40s 16°23'N Taurus -12.3 32'21"6
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 110° from the Sun, which is in Capricornus at this time of year.

The sky on 5 Feb 2017

The sky on 5 February 2017
Sunrise
06:51
Sunset
17:03
Twilight ends
18:39
Twilight begins
05:15


Waxing Gibbous

72%

8 days old

Planets
Rise Culm. Set
Mercury 06:00 10:38 15:16
Venus 08:27 14:40 20:54
Moon 12:08 19:21 02:39
Mars 08:51 15:02 21:13
Jupiter 22:33 04:08 09:43
Saturn 03:41 08:18 12:55
All times shown in EST.

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.

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