A matter of perspective

There was a nice combination of the Moon, Mars, and Venus visible in the West last evening. This picture was cropped from original, taken with 200mm lens, ASA 800, 1/20 sec, handheld. Moon, Mars, and Venus aligned in evening sky. The Moon (top) is closest (360,000km), Venus (bottom) is about 213 million km away, and Mars (middle) 330 Million km.

The relative positions of the planets in February 2015 are shown in the scanned image at the bottom. The Earth is shown in green. Imagine yourself looking from the Earth towards Venus and Mars. Yesterday (February 20 around 7:30 pm) you would have seen the two planets aligned as shown below, located far beyond the Moon (the little black dot labelled "Moon"). The orbits are not to scale. If the picture were drawn to scale, Venus would be about 3 meters and Mars 4.6 meters from the Earth.
 

 

 

Orbit schematic scanned from Sky and Telescope magazine.

Into the New Year

My wife and I hope that all of you had a great holiday season. We enjoyed our usual Christmas family get-together.  For once, the two of us had a "stay-at-home" New Year all by ourselves. After watching the New York time ball at 9pm, we raised a toast or two, reminisced about past riotous New Years' parties here at home, in California and Mexico, and family members and friends who have died, and went to bed around 10pm - getting old, I guess.

A number of astronomical events (including a relatively rare triple shadow transit on Jupiter) were rained/fogged out during this month. A clear sky break during last week made it possible for me to have a look at comet Lovejoy, though. This is a relatively bright comet, easily seen through binoculars. It's bright enough to be seen with the naked eye as a faint, fuzzy star, but not in the light-polluted Metro area.

The days are getting longer; we're looking forward to more sun.

Christmas again

This year seems to have passed more quickly than ever - I think that's a sign of aging: every second, minute, hour, day represents a larger percentage of the rest of life, and somehow, our mind builds that into our perceptions.

My wife and I wish everyone a very Merry Christmas, an a Happy, Healthy, and Successful New Year.

This is the fourth Christmas since our son died - we live with the memories and are
thankful for having his wife and children live next door.

As time goes by...

Things have been busy lately. The RASC has been doing things astronomical - observing nights for the public and council and membership meetings, which always feature some interesting speakers. As usual, the weather ruled the success of the observing sessions; some had to be called off. The latest one of these was scheduled for the youngest group in the Boy Scouts (Beavers) in New Westminster today - but the weather gods do not agree, as you can see if you live in our area. If you are interested in astronomy, as I am, you get used to this.

Aside from my external activities, my wife and I have had some doctors' appointments - at our age, some issue or other always comes up. Well, "body and soul maintenance" is important at any age, it just becomes more necessary as time goes on.

Our daughter-in-law organized a very successful family get-together (17 people). We always have a great time and enjoy each others' company; there are none of the family frictions which seem to be the norm if you judge by the numerous TV shows which exploit that theme. We're lucky to be able to appreciate our individual traits.

Christmas is just around the corner - the year is quickly approaching its end. Something is tinkering with the speed at which time goes by, it seems to me.

Mushroom "Forest"

We have a couple of dozen or so mushrooms growing in our lawn again. This happens every year. I don't know whether they are edible (personally, I don't eat mushrooms). In any case, they are important or the well-being of the trees (they are a catalyst in the storage of nitrogen in the soil).

A made a reference to the "mushroom cycle" in May of last year:  http://penmachinedad.blogspot.ca/2013/05/the-fixer.html

I'm always astounded when these mushrooms appear quite suddenly, apparently "out of nowhere".

Nature is amazing.

Eclipse wipe-out

The Moon went through a total eclipse this morning (from 3:25 am to 4:24 am PDT). Before totality, as the the Moon moves into and out of the Earth's shadow, it goes through a number of stages.

The magazine "Sky and Telescope" published a very descriptive illustration of the process:

I had decided a couple of days earlier that I'd try to photograph this event. On our back porch, I set up a Canon 60Da camera with a 500mm telephoto lens on an iOptron SkyTracker mount (to compensate for the Earth's rotation during that event). The camera can be controlled via our home computer network; I'm a creature of comfort and did not want to sit out in the cool night. Instead, I watched the process on my desktop computer and took pictures as things progressed. All evening, the sky was covered with thin clouds, but the Moon was visible through them.

Here's what that looked like:

As the time for the eclipse approached, the clouds turned more variable, so camera exposure times had to vary with the varying transparency of the clouds. Alas, just as the time for the beginning of the "total" phase approached, the clouds got so thick that the Moon could not be seen and the sky stayed that way until late this afternoon.

The penumbra is apparent on the left edge.

Getting into the partial phase.

Almost into totality. The clouds are quite dense. This is a 4-second exposure.

The last trace of the Moon. A couple of minutes before totality. This is a 6-second exposure. The brown tint on the clouds is the wasted light from sodium vapour street lights which pollute the sky in the lower mainland.

Can you find the Moon in this picture?

Being into astronomy, the weather rules. It can be frustrating. I never got to see, or photograph any part of the remainder of this eclipse. There are many good pictures of all of the eclipse on the internet, taken in parts of the country which did not have cloud problems.

This was a really badly timed wipe-out.

The year goes on.

Looking at the rainy view outside our window, and considering the rapidly shortening days, I think that we've reached the end of summer. We'll probably have a few more sporadic nice days, but autumn is near. We've had some beautiful months, weatherwise, reminiscent of California, without the drought which people have to deal with there. We've also been lucky that there have been no floods here, devastating storms, or forest fires, events which were experienced by many people in other parts of this continent.

Winter fun is coming up - skiing in the local mountains, or at Whistler. We live in a beautiful part of the world here in Canada. Let's be thankful.