Close approach of Jupiter and M44

Dominic Ford, Editor
From the Appulses feed

Tags: Appulse

Jupiter and M44 will make a close approach, passing within a mere 54.8 arcminutes of each other.

From Cambridge , the pair will be visible in the dawn sky, rising at 01:52 (EDT) and reaching an altitude of 38° above the eastern horizon before fading from view as dawn breaks at around 05:31.

Jupiter will be at mag -2.0; and M44 will be at mag 3.1. Both objects will lie in the constellation Cancer.

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

A graph of the angular separation between Jupiter and M44 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
Jupiter 08h39m20s 18°47'N Cancer -2.0 33"3
M44 08h40m20s 19°40'N Cancer 3.1 108'36"0

The coordinates above are given in J2000.0. The pair will be at an angular separation of 53° from the Sun, which is in Virgo at this time of year.

The sky on 12 May 2025

The sky on 12 May 2025
Sunrise
05:23
Sunset
19:55
Twilight ends
21:52
Twilight begins
03:27


Waning Gibbous

99%

15 days old

Planets
Rise Culm. Set
Mercury 04:46 11:29 18:11
Venus 03:38 09:50 16:03
Moon 19:22 00:10 04:51
Mars 10:57 18:15 01:33
Jupiter 07:17 14:52 22:27
Saturn 03:26 09:20 15:14
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.

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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