The other morning promised an interesting alignment of the planets Venus and Mercury, the waning crescent Moon (3.4% illuminated), and the bright star Spica (Alpha Vir, the brightest star in the constellation Virgo) in the morning sky. All that was required was clear skies.
Various weather models showed essentially the same forecast. There would be a band of high clouds to our northwest and another band to our southeast. Overhead it would be clear.
And the forecasts turned out correct. Below is a satellite image taken at ~1330 UTC (0630 MST) showing a nice clear gap in the clouds.
I drove to the overlook on Mars Hill, home of Lowell Observatory, in Flagstaff. It has very good views towards the east and is a location I have used many times over the years for astrophotography.
Earlier this year in March the planets Venus and Mercury were close to each other in the evening sky. The crescent Moon also joined the two planets one evening (18 March 2018) resulting in a photogenic scene in the western twilight sky.
Mercury faded from view shortly thereafter and shifted into the morning sky. However, Mercury recently reached superior conjunction (06 June 2018) passing from the morning back into the evening sky. So, once again, Venus and Mercury share the western twilight sky. Mercury will continue to climb higher in the sky through mid July when the two planets will be at their closest approach.
A very nice animation of the positions of Venus and Mercury, as well as Jupiter and Saturn, can be seen the Shadow and Substance web site(or go directly to the Vimeo site).
Exceptionally clear skies resulted in these images of Venus high in the western sky with Mercury much lower and a bit more difficult to see in the bright evening twilight. Mercury should become easier to see over the next few weeks.
A bit over a week ago (18 March 2018), we had a triple conjunction in the sky. Venus and Mercury had been in the evening sky for a few weeks—and now a crescent Moon was going to join them in the evening. Weather permitting, I was interested in capturing images of this event. I headed out towards the Mormon Lake Overlook which would give me a good view of the western sky as well as the possibility of reflections of these sky objects in the shallow waters of the lake.
While waiting for the sky to darken, I was treated to a few minutes of sunset colors on some interesting wave clouds. More on that below.
The Moon and Venus are easily visible in this image taken at 7:20 P.M. MST while Mercury is a bit harder to see to the right and above Venus. A second image taken at 7:29 P.M. shows all three bodies quite clearly. And, as I had hoped, there were reflections in the water.
This is how Venus and Mercury looked earlier in the month.
Now, back to the wave clouds.
Although they look like jet contrails, these were actually long and thin wave clouds. As the sun began to set, the colors were briefly quite amazing.
It was an fun evening: Interesting clouds and a triple conjunction.
This week the waning moon joined four planets in the eastern sky. Lowest to the horizon was Mercury with Saturn just above. The moon was located well above that pair. And high in the sky were Mars and Jupiter.
Earlier this month on 07 January 2018, Mars and Jupiter were in conjunction. The pair was only 0.25 degrees apart in the sky at its closest. By comparison, the full moon is approximately 0.50 degrees. And, then, on 13 January 2018, Mercury and Saturn were in conjunction—but not quite as close as the Mars-Jupiter conjunction.
On the 14th and 15th, the Moon was just above and just below the pair of Mercury and Saturn.
I had planned to photograph on both days but clouds intervened. All I got was this thin crescent Moon (~2% illuminated) that was visible for only a few minutes before it was obscured by clouds.
Coming up: at the end of the month there will be a total lunar eclipse that will be visible in the pre-dawn hours of the western states. I hope the skies are clear.
The past week has been bountiful for photographing objects in the night sky. These objects include Mercury, Venus, Mars, the Moon, and the Zodiacal Light.
In mid-March the planet Venus was an evening object but was dropping closer to the horizon each evening. At the same time, Mercury was rising higher each day. On 18 March 2017, they were roughly side by side and presented an interesting spectacle in the evening twilight.
The following night I returned to Kachina Wetlands but later in the evening to capture the Zodiacal Light. The Zodiacal Light is a faint, roughly triangular, diffuse white glow seen in the night sky that appears to extend up from the vicinity of the Sun along the ecliptic or zodiac.