Strawberry Moon | Micromoon | 9 Jun 2017

Moonrise for me last evening was 8:42 pm. I went out at 9:10 to see if the sky to the east was clear giving a view. Saturn was supposed to be positioned close to the right of the Moon. It was very hazy. The Moon was not bright and Saturn was not visible to me. I went back in the house for the camera and tripod. These two photos are at 9:20 and 9:21 with the Moon framed by some trees low to the horizon.

9:20 pm CDT

9:21 pm CDT

I went back inside to wait for the Moon to rise above some of the haze. When I returned at 9:59, the conditions were better. There was still a hazy glow near the Moon. I liked the effect. How about you?

9:59 pm CDT

Timing is everything, so I’ve heard. This moon coincides with the ripening of strawberries. Hence the name Strawberry Moon.

Much has been written in recent years about super-moons. That occurs when the Moon is at its nearest distance from Earth at full moon. This time, the Moon was at its farthest from Earth when full. The term mini-moon or micro-moon has been applied by some for this event. For more information about this full-moon, follow this link to The following image compares a super to a micro moon. See this link for details.

Astronomy Picture of the Day | Catalin Paduraru

Jupiter | Three Galilean Moons | 7 May 2017

The clear evening sky offered a view of our Moon with Jupiter nearby as shown at left. Near sunset we set up the telescope and camera on tripods for closer looks. Good seeing allowed a photograph of Jupiter showing a few cloud bands as well as 3 of the 4 Galilean Moons. Ganymede was at the upper right. Europa and Io were to the lower left. Callisto was visible farther to the lower left in the telescope view. But, it didn’t show in this photo.

Usually, setting the exposure for Jupiter detail underexposes the Galilean moons and makes them not visible. Setting exposure to show the Galilean moons overexposes Jupiter. This time was a compromise.

Canon PowerShot SX60HS, ISO = 100, Shutter = 1/25s, Raw

Screenshot view via Stellarium


Vatican Observatory Tour

I follow the blog The Catholic Astronomer from the Vatican Observatory Foundation. I’ve heard of the Vatican Observatory for a long time but never knew much about it. It sits a above an extinct volcanic lake at Castel Gandolfo in the Papal Gardens near Rome.

© Paul A. Zalonski

Very recently, the observatory director and foundation director led a tour of the place. Joining them was Christopher Graney who is an astronomy teacher in Louisville, KY. He recorded videos for his class to see later. His videos are posted here on the blog site.

Scroll to the bottom of his post and click the left of three small images about the history and telescopes. His link will take you to the three videos.

One aspect of interest in the tour was of the women computers who worked there and their machine used to measure stars on the glass plates. It connected well with the work of the women computers in The Glass Universe by Dava Sobel. Those women laid the foundations for many of the important principles used in modern astronomy.

Venus | Inferior Conjunction | 2017

Venus is closer to the Sun and orbits faster than Earth. Earth takes just over 365 days. Venus orbits in just under 225 Earth days. During the recent few months, Venus was bright and easily visible in the evening sky as it caught up to and passed Earth. In doing so, it came closer and appeared larger when viewed with a telescope or binoculars. This animation from a desktop program illustrates their motions. Mercury is not shown in order to simplify the view. The sizes are exaggerated.

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Venus | Morning View | 24 Mar 2017

I got my first morning view of Venus this spring at 6:45. There was a layer of high clouds to the east dimming the view quite a lot. Binoculars helped locate it for a photograph. Thanks to Scott at Scott’s Sky Watch for pointing out Venus is now visible both in the evening and the morning if the sky is clear enough. He called it a double dose of Venus.

Looking slightly north of east through high clouds.

Clouds made the image a little hazy.

There was another bonus this morning. Looking to the southeast, the waning crescent Moon shined through a clear break in the clouds.