Jupiter Mars Conjunction January 6-7, 2018

Moon, Mars and Venus Setting over Mount Whitney

A past conjunction: the moon, Mars and Venus setting over Mount Whitney

The planets in our solar system orbit the sun in a plane, the “ecliptic plane”.  Seen from the side within that plane from here on earth, they appear to travel in a line in the sky.  As the planets travel in different orbits at different speeds, they sometimes seem to pass one another along that imaginary ecliptic line in the sky, as seen from here on earth. From the United States, the pass will occur between the mornings of January 6 and 7, 2018. Mars and Jupiter will pass within 1/4 degree, 1/2 moon width, of each other.

For the image above from the moon, Mars, Venus conjunction on February 20, 2015, I identified several locations to the conjunction as the moon and planets set over Mount Whitney, near Lone Pine, California. This time the planets will be about 3 times closer to each other.

Here are some actual photos of Jupiter and Mars approaching each other in the sky on recent nights:

Jupiter Mars Conjunction January 7

Jupiter and Mars on December 30, approaching conjunction January 6/7 2017

Approaching Jupiter Mars Conjunction

Jupiter and Mars January 2, rising before dawn

Astrophotographer Jeff Sullivan

On January 5 Jupiter and Mars continue their approach towards conjunction January 6

Here’s a time-lapse of the planets rising on the morning of January 2:

The images and sample time-lapse were captured at a modest 200 mm focal length, the event will be more interesting when they are close enough to shoot at 300-400mm or more, their movement towards each other becomes even more obvious, and while the moons of Jupiter become even more apparent. The two planets will rise over the eastern horizon around 2:45 am on a zero degree horizon here in the Pacific time zone (at a compass angle of 112 degrees, a bit south of east), but I’ve been watching them past 6 am on recent mornings, so you can catch them from when they rise well into twilight. With my actual horizon being more than zero degrees, the planets will appear to rise closer to 3 am for me.

Here’s my result showing the progress of the planets, footage from the mornings of January 2, 3, 5, and 7:

Aside from the planets close together, what else might have been shot? With a long enough exposure and an interesting horizon, a time-lapse video of the planets rising could be interesting, somewhat like this prior shoot of a planetary conjunction setting:

Moon – Mars – Venus Conjunction Setting Over Mount Whitney from Jeff Sullivan on Vimeo.

I chose not to travel to an interesting landscape for this event due to a stormy weather forecast for much of the week here in the Eastern Sierra, including rain on January 6.

Venus Jupiter Moon Conjunction

Venus Jupiter Moon Conjunction, August 23, 2014

Share This:

Meteors with Venus, Jupiter & Mars in Zodiacal Light

Meteor with planets Venus, Jupiter and Mars

Meteor with Venus, Jupiter & Mars rising in zodiacal light during the Orionids, October 22, 2015

Who saw or photographed some Orionid meteors over the last night or two?  In the photo above, a meteor crosses over the path of Venus, Jupiter and Mars, rising in zodiacal light during the Orionid meteor shower around 5 am this morning, October 22, 2015.

Although the streak is clearly a meteor (note the characteristic green color), technically it’s not an Orionid, since the radiant point for the Orionid meteor shower is out of the upper right corner of the frame.  So this meteor is traveling at nearly a right angle to what its trajectory would be if it were one of the Orionids.

It may however be a Leo Minorid meteor, since its radiant point is to the left of Venus Jupiter and Mars this morning.  The Leo Minorid meteor shower peaks the morning of October 23, but it is a minor shower with an estimated 2 meteors per hour, but minor showers sometimes have an unexpectedly high rate, so tomorrow morning could offer a surprise from the Leo Minorids along with after-peak Orionids.

There are also random, sporadic meteors, particularly in the early morning, as your position on the earth rotates to the leading side of the earth as it travels through space rotating around the sun.

The Zodiacal light is sunlight shining off of dust in our solar system, the light tilted up from the lower left in the photo above.  You can experience the Zodiacal light, or false dawn, this time of year when a a pyramid-shaped glow can be seen in the east an hour before dawn’s first light (or 80 to 120 minutes before sunrise). This light is caused by sunlight reflecting off of dust particles in space in the same plane as earth and can resemble the lights from a city. It is tilted to follow the same ecliptic plane that the planets travel in.  Zodiacal light is best seen under dark skies, in places with minimal light pollution.  You can catch the Zodiacal light for another 2 or 3 mornings this month, but after that the moon will be too full and it will no longer set early enough to leave you with a dark enough sky to see this pre-dawn light.

You can see the Zodiacal light as the planets rise in this time-lapse video captured this morning before and twilight light started to brighten the sky:

Venus, Jupiter and Mars in Zodiacal light during the Orionid meteor shower this morning

#orionids #meteorshower #Canon #astrophotography

Share This: