Night Sky Astronomy

Archive for the ‘Constellations’ Category

For those of you who are very early risers in the morning, the Eta Aquarids Meteor Shower is for you! Unfortunately, for those of us who can’t get up in the morning we will probably miss this shower, as the best time to view these meteors is in the couple of hours before dawn. This is when the radiant of the meteor shower comes over our horizion in the Northern Hemisphere.

The good thing about this meteor shower is that you can see the meteors several days before the peak, which is on May 5th, and then for several days after. I believe the full timescale is from the 19th April until the 28th May, so they can be seen for over a month, if you are willing to get up in the morning!  The number of meteors that should be seen each hour could peak at about 70 per hour if you are lucky, but you are more likely to see around 10-20 per hour in the Northern Hemisphere, with each meteor travelling at approx 66km/s.  This year is actually a very good year to view the Eta Aquarids as the moon is only a waning crescent so will not make the sky too bright.

This meteor shower is called the Eta Aquarids as the radiant of the shower looks to emanate from the star Eta in the constellation of Aquarius. Aquarius is also known as the ‘Water Bearer’ and is shown in the image below.  The meteors from this shower are actually dust and debris left behind from Halleys Comet, with this shower coming about due to the Earth passing through this orbital path of the Comet and thus ploughing straight through the path of debris

The Constellation Aquarius, the Water Bearer

Last night we went out again to try and find Comet Pan-Starrs as it was a clear night, but unfortunately, we didn’t manage to see it. There was a band of cloud along the horizon where I am sure the Comet would have been, and it was also very frosty so the atmosphere of the Earth wasn’t as clear as it had been the previous nights when we have been out. It was a bit of a shame, but we at least saw the Comet on our second attempt which was great!

Instead last night, we had a look around at the other objects in the Sky with our binoculars. Jupiter was very bright and you could see a couple of it’s Moon’s shining beside it, and we also had a good look at the Pleiades (also known as the ‘Seven Sisters’ as they are a group of seven stars that shine very brightly. The Pleiades were clear as a bell through the binoculars and were a great site! Finally, we had a go at looking for the Orion Nebula and that was showing really well. You could see a blurry, but large, mass of stars which make up the Nebula in the sword of the Constellation Orion (just south of Orion’s belt). It was a great view!

So whilst we were annoyed we couldn’t see the Comet again, we had a good time looking at some of the other features that make up the night sky!

If you can get out this week, it is a great opportunity to do some Stargazing as the skies around the country are very clear at night time at the moment!

The Moon is quite small at the moment so the light from it isn’t quite bright enough to hide all the Stars. The brighter ones can still be seen very well especially Sirius (the Dog Star), Betelgeuse (the red coloured top left star in the constellation Orion) and Aldebaran (which is another red coloured star in the constellation Taurus). But the best object by far in the sky at the moment is the planet Jupiter. It is currently situated near to the Moon each night which makes it easy to spot. Jupiter’s Moons are also very clear at the moment and if you use a telescope, you can see at least four of them shining brightly around the huge planet (depending on where they are in their orbits). You can also just make them out using a decent pair of binoculars.

I had a great half an hour on Sunday night (before I nearly froze to death!)  looking at the Moon and Jupiter. I could see the craters on the Moon very clearly as it was shining bright. I also had a great look at Jupiter and saw three Moons to start with, but then whilst I was watching, a fourth Moon peeped out from behind the giant planet. All four were shining brighter than I had probably seen them shine before. I could also see two of the purple coloured storm bands moving around the planet,  just above and below the centre of Jupiter. It was an amazing sight and whenever I view Jupiter, I can never really believe what I am seeing! It’s that fantastic and awe-inspiring to me.

So take advantage of the clear skies and fine weather and do a bit of Stargazing tonight and let me know what you see by either leaving a comment on this post or tweeting me at @strethewey. Enjoy the viewing!

I was out on November 3rd at  a Fireworks show in Trispen in Cornwall and whilst I was waiting for the Fireworks to start I was having a good look at the Sky.  It was clear as a bell and a very cold evening, so the Stars were shining brilliantly. To my amazement, I saw a really bright and big shooting star followed by another, and another, and another and another. I think I saw a total of 6 or 7 in the end and they were all really clear to view, and were flying across the Sky right above us! It was an amazing sight as I wasn’t expecting to see a Meteor show as well!

A few days later I looked up whether there were any Meteor showers taking place around this time and found that the Meteors must have been from the Leonids which is a Meteor shower that happens throughout November every year. The best days to view them this year were on the 17th and 20th of November, so I was very lucky to see as many as I did in only about 45 minutes of viewing, a good couple of weeks before the height of the shower.

The Leonids are said to be a lot better quality than the Perseids in August as they are much brighter and about 10mm in diameter, and this was certainly true from my observations. The Perseids paled in comparison to the Leonids. These Meteors originate from a Comet named Tempel-Tuttle, which was discovered in 1865 by Ernst Tempel, and radiate from the constellation Leo (hence their name).

Remember to keep an eye out for them next year as they are a great sight to behold!

The weather forecast was not good for the actual height of the Perseid meteor shower (it turned out to be shocking) so I went out and had a look the day before, which was last Saturday. It turned out to be a strange half hour or so!

When I first went to look outside there was a massive flash of lightning which made me jump as I wasn’t expecting it, so I assumed that the sky would be completely cloudy, but I was surprised to see that the sky was in fact mostly clear. So I went on out and had a good stare at the sky above.  During the star gaze, lightning was still flashing in the distance somewhere over Dartmoor, which made it interesting. In fact, the lightning turned a bit strange at one point as it seemed to be pulsing in one cloud only! It was like the scene in Independence Day when the alien ships first started to appear out of the skies around the world.  The flashes were quick as well – no more than 10 to 15 seconds apart, so there must have been one heck of a storm over Dartmoor somewhere!

Luckily this weird lightning storm didn’t take anything away from the meteors as I saw some amazing ones shoot across the sky.  On some, the ‘tail’ that they left was very distinct and easy to see well after the meteor itself had vanished! I think in the time I was out there (not much more than half an hour or so), I saw 6 or 7 meteors with probably 3 or 4 of those being really big and bright. Add to this, I saw the ISS again (purely by accident this time) and 6 other satellites, which meant it was a great time sky gazing! In fact, a couple of the meteors were up there with the best I have ever seen, although the one I saw in Weymouth last September was still the best ever as it was very bright and large as it streaked across the constellation of Cassiopeia.

Did anyone else manage to see any Meteors or the strange lighting storm? Send me a comment or tweet me (@strethewey) if you did!