Night Sky Astronomy

Finally we have had a break in the miserable weather and I have been able to go out and have a look at the night Sky again!

Luckily the clearer night skies have coincided with the time of the year when the International Space Station is most visible in our region.  Last night I saw it for the first time this year and it was as good as it was in 2011.  This year it seems to have changed its trajectory in the sky as it came in from towards the Hoe and travelled towards Yelverton, wheras last year it came from the direction of Cornwall and right over the top of our house towards the edges of Dartmoor. I would recommend to anyone to have a look each evening for it. It is currently coming into view in Plymouth for several minutes between 21:30 and 23:00, but you will have to check for exact timings. Once you see it in the Sky, then you know what it is straight away as it is much brighter than anything else and it is moving at a constant speed. If you can get hold of some binoculars you should be able to see the solar panels on each side of the main pod with ease.

It is also the time of year for the annual Perseid Meteor Shower. This year the height of the shower is on the 12th and 13th of August. I am hoping the evenings will stay clear enough on those nights to view them, however I will be out before and after those dates as you will still be able to see the miniscule dust particles light up the night sky, but less frequently. They originate from the Perseus Constellation which is basically looking towards Dartmoor from anywhere in Plymouth, so can easily be seen.

This year the annual Lyrid Meteor Shower should be a great spectacle as the Moon will not be lighting up the sky at all. As long as you are out in the country and have the luck of a clear sky, there should be a perfect view of the meteors. Even in a lighter sky, it should be a good sight.

The height of the shower falls on the night of the 21st April with the average number of meteors spotted per hour being at about 10-20, but it has been known to reach up to 100 meteors per hour! On the nights around the peak night, you should still be able to see the occasional meteor. I had a look last night but unfortunately didn’t see any, mainly because the area of the sky where they seem to originate from (The constellation Lyra near the bright star called ‘Vega’.) was too low on the horizon and was hidden by trees.

The Lyrids are thought to be sand grain sized debris from a passing comet. When they hit the Earth’s atmosphere, they burn up, causing the light streaks in the Sky.  In the past, fireballs have been seen hurtling across the sky during this meteor shower. They are thought to originate from comet Thatcher that has an orbit of 416 years with its path staying practically the same each time is passes through.  This means the debris is always in the path of the Earth which is why it is an annual event.

So fingers crossed everyone gets to see a good few meteors! 😉

At the moment Mars is shining very brightly in the sky, and if you look for it at about 9pm, it will be very close to the moon.  It is so bright that you can’t really miss it and can even be seen clearly when the full moon is shining brightly. Mars is at its closest to the Earth at the moment which is why it is a great time to get out and view the planet through either binoculars or a telescope.

I noticed it a couple of nights ago when I decided to have a look at the sky at about 9pm. Whilst looking around I spotted a very bright and red star just under and to the left of the almost full moon. At first I thought it was Betelgeuse or Aldebaran (both red giants) but as I scanned the night sky further, I picked these up further to the South East from where I was standing. So I consulted my astronomy book and found that it was actually Mars shining bright and red in the sky.  I had never seen it so red before, so I went in and got some binoculars to take a closer look (I didn’t have immediate access to my telescope at the time). I was quite amazed to be able to make out the North Polar Cap of the planet as it was shining brightly, and some of the darker mountain regions. I spent several minutes gazing at Mars and it was great!

A couple of days later, after a lot of rain, I got my telescope out ready to take a look, only for the sky to cloud over on a couple of occasions. When I did finally manage to get a glimpse between clouds, Mars wasn’t as red or as bright unfortunately. Through the telescope I couldn’t see too much at all and nowhere near the detail that I saw through my binoculars, which was a great shame. It was probably due to the Moon being completely full and the brightest I had seen it for a long time, and also because it was literally to the right of Mars. The glare of the Moon was too much to see Mars properly.  Whilst I was out there, I did get a good look at Venus again before it crept over and behind the roof of my house!

Here is an image of Mars that I have found that is closest to what I saw through my binoculars –

The Planet Mars

Out of the planets that I had seen through my telescope, I hadn’t seen Venus properly until the end of January this year. Venus has been, and still is, very bright in the sky and at the end of January it was perfectly placed to view in my back garden.

Before viewing the planet, I wasn’t sure what I was going to see. I knew the planet was a sphere and had a blue tint to it but didn’t think that I would see it like that, and I knew it didn’t have any rings so I think I was just expecting to see something like a star in the sky.

It took a couple of nights to actually view Venus properly as on the first night I tried, it was slightly misty, so the planet wasn’t well spotted.  The next night, I waited until it got too dark, so too much light was reflecting from it which dazzled through the telescope. I then read up on viewing Venus and found the best time to view it was at dusk when it was still slightly light and the planet wasn’t too bright. So on my third attempt, I had the telescope outside ready for dusk and saw Venus brilliantly through it!

To my surprise, it did actually look blue! It was like viewing a bluish ball just hanging in Space. It obviously didn’t have the grandeur of Jupiter (Moons and storm clouds) or Saturn (rings) but it was great to see a planet that looked different to the others that I had seen.  I was very pleased with what I saw, to say the least!  The image below is the closest one I could find that looked like what I saw (obviously what I saw was the whole planet and not the half that was in the light).  My telescope is not powerful enough to view the planet in the size below, but I could still see it very well!

The Planet Venus

Venus is still going to be very bright in the sky over the next couple of months, so if you can, I would try and get out and view it!  In fact, the planet is meant to be as bright as the Moon and will cast shadows, which I find very interesting indeed.  The best time to test this would be towards the middle of the month (March) when there is no Moon in the Sky, so Venus should be the main light source during clear nights.

Happy Venus spotting!

It has now been a whole year since I received my telescope for my 30th birthday, and I have learnt so much in that time!

It was exactly a year ago that I found out which bright light in the sky was Jupiter so I thought that I would go out and view it again, now that I have had more experience with the telescope.

I wasn’t disappointed either as I managed to home in on the Red Planet pretty quickly and got it into focus using several lenses with minimal trouble. What I saw was again brilliant and I could make out four of Jupiter’s moons beside it.  In fact, whilst I was looking at the planet, one of the moon’s popped out from behind the right hand side of it, which  I thought was great! 😉  I could also make out the swirling colours of Jupiter when I used the highest magnification lens that was available to me.

Overall, I was very pleased with the evening’s Astronomy and it showed that I have definitely learnt loads about the night sky in the past year.

N.B. Jupiter is currently very bright in the Sky and is one of the first objects that you can see during and after dusk. You can’t miss it! 😉

The photograph of Jupiter below was taken by the Voyager 1 Spacecraft when it was still more than 25 million miles away on January 24th 1979.  The object on the bottom left is Ganymede which is Jupiter’s largest Moon.

The Red Planet Jupiter