14.12.10
Lest We Forget
9.12.10
Dec-Jan
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3.11.10
The Strumpets Of Yore.
But looking at this week first, we still have Jupiter very bright and due south around 9pm. Venus is back in the dawn sky barely rising by
We still have comet Hartley II, though I’ve given up on it, it’s over in the east around
November holds two respectable meteor showers and a chance to three bright planets during the night. The Taurid meteor shower is active through the middle of November. This shower holds few meteors, just 6 per hour on average. But the meteors are much brighter than average. Another meteor shower, the Leonids, peaks during the early morning of November 17. This brief shower has been known for sudden dramatic outbursts, also called meteor storms. But the Leonids have been pretty quiet these past few years. You might see 25-50 meteors per hour before dawn. I’ll tell you how to find them next week.
And that was your night sky for the week ending on the 3rd anniversary of the German Bundestag passing the controversial data retention bill mandating storage of citizens' telecommunications traffic data for six months without probable cause.
20.10.10
Last week of buses, whoopee.
Well we certainly have an autumn sky now, which in many ways is as it should be, the summer constellations are now but an ephemeral wisp of memory. Taurus the bull with its baleful red eye is well up in the east by 10 closely followed by Orion. Which neatly brings us to the Orionid meteor shower which peaks this week around the 21st, and much good will it do us, because we have a full moon on the 23rd so throughout the entire week we will be hard pushed to see anything at all. But if you’re a fanatic and are determined to have a look then to have any chance at all look toward Orion in the eastern sky after
Some people have managed to find Hartley 2.
And that's your night sky for the week ending on the 1704th anniversary of the Martyrdom of Saint Demetrius of Thessalonica.
13.10.10
Fly Fishing Again.
A brief look again this week because there’s not a great deal going on just for once, I mentioned Hartley the comet last week, I looked for it again and I may have seen it, in fact I almost certainly did. There was no moon, I looked with binoculars a little to the east of Cassiopeia toward Perseus and saw hundreds of stars, the thing which has no tail and is allegedly surrounded by for want of a better word a smudge, was indiscernible amongst the milky way, and the moons back next week so it will there’s a guide above, if you think you may have better luck.
6.10.10
Fly Fishing
A brief look this week because there’s not a great deal going on, I mentioned Hartley last week, I looked for it but the moon was too bright, not this week though. Periodic Comet Hartley 2 is a dim 7th magnitude, visible in binoculars in a dark sky. It's excellently placed very high these moonless evenings, passing just south of Cassiopeia. But it's large and diffuse, so you'll need an unpolluted dark sky. Which we have in abundance, the moon is new on Thursday so this is the best week for a look, Cassiopeia is the wonky W high in the north eastern sky before
Mercury (magnitude –1.2) drops back down into the sunrise this week. So its gone for a while but it will soon be back in the evening sunset.
Venus, though very bright at magnitude –4.7, is disappearing very low in the southwest during bright evening twilight. It sets well before dark. And if you’re on St Mary’s you have to go up the garrison to see it. It’s a very pronounced crescent at the moment.
Mars, vastly dimmer at magnitude +1.5, is 7° above or upper right of Venus in bright twilight. That's about one field-of-view width in typical binoculars. You'll need them. Good luck.
Jupiter is loitering at the Pisces-Aquarius border and is two weeks past opposition now. As twilight fades, Jupiter becomes very obvious low in the east-southeast. It shines high in the southeast by mid-evening, by far the brightest star like point in the sky. It's highest in the south around
11.8.10
The Persieds
This year should be a good one because the moon is just off new and will be trailing the sun on the way to
The shower is caused by the Earth passing through the orbit of comet 109P/Swift-Tuttle, which is due back in 2016 when the show will be much more vivid.
We still have Venus, Mars and Saturn waltzing around very close to each other shortly after evening twilight in the west. Unfortunately this means that Saturn and Mars are on the other side of the Sun and are about as far away as they get. Venus on the other hand is getting closer to us and should be visible as a bright crescent in a good pair of binoculars.
Jupiter is up now well before
That was your Scilly stars for the week ending on 127th anniversary of the first public performance of the
4.8.10
The Flatulence Of The Sun
I take a week off and before you know its August, the month where the evening start to very noticeably start drawing in. And it’s not a bad month for looking at the night sky.
This week in particular if you look to the Northwest, Venus Mars and Saturn are almost on top of each other, especially on Saturday when they are within a 5 degree circle. Don’t worry about Mars and Saturn at first, just look for Venus which will visible very soon after Sunset hanging between Samson and the Bishop, looking from St. Mary’s. As the Sun sinks lower Saturn and Mars will come into view, all 3 of them should be easily visible at once in binoculars. By the end of August they will all be setting before 9, so this is the last chance to see them for a while. For this week at least, Mercury will be there but a lot closer to the horizon and may not be visible.
Yesterday Keri was banging on about the Aurora Borealis and he almost sounded like he knew what he was talking about, when the sad reality is that Keri is as much a scientist as John Prescott is a gay icon. Anyway you never know, there’s no moon of consequence for the next two weeks before midnight, so if you see some shimmering to the north it could just be the Northern Lights which are caused by the solar wind, a sort of Astral flatulence interacting with the earths magnetosphere. Which in turn is caused by the huge puddle of molten iron at the earth’s core?
Auroras are the result of the emissions of photons in the Earth's upper atmosphere, above 80 km (50 miles), from ionized nitrogen atoms regaining an electron, and oxygen and nitrogen atoms returning from an excited state to ground state. They are ionized or excited by the collision of solar wind particles being funneled down and accelerated along the Earth's magnetic field lines; excitation energy is lost by the emission of a photon of light, or by collision with another atom or molecule:
As for the moon this month first quarter was yesterday, its New on the tenth and full on the 24th.
And the other highlight of August is the Perseids Meteor Shower. The Perseids is one of the best meteor showers of the year, producing up to 60 meteors per hour at their peak. This year's shower should peak on the night of August 12 and the morning of the 13th, well after the moon has set. But you may be able to see some meteors any time from now to the 22nd. The radiant point for this shower will be, oddly enough, in the constellation Perseus. The thin, crescent moon will be out of the way early, setting the stage for a potentially spectacular show. For best viewing, look to the northeast after midnight.
I’ve put a guide on the blog. Of course the advent of the Perseids has now become a harbinger of doom. It is of course the time of year when the black shadow or she who walks by night begins her annual 8 and half months of plunder. Of course Barbara has already had virtually everything of value, but I’ve heard that this year she will be kidnapping elderly relatives for ransom, so you may want to put that Granny Flat on hold pending further developments.
And that was night sky for the week ending on the 39th anniversary of the founding of the Society for American Baseball in Cooperstown, New York.
16.6.10
The Scottish Comet
It’s quite a striking green, with a blue tail, pictures and a guide of course on the blog. Gas molecules of cyanogen (CN) and diatomic carbon (C2) in a comet's coma fluoresce green in sunlight. Ions of carbon monoxide (CO+) and carbon dioxide (CO2+) in the ion tail fluoresce blue. A comet's dust tail, on the other hand, simply reflects sunlight and is basically Sun-colored: pale yellow-white. This is clearly not a very dusty comet.
As for the planets no real change at all.
Mercury barely rises before the sun, so forget about it.
Mars still forms a striking pair with bluer Regulus in the late evening western sky.
Jupiter rises around 1 or 2 a.m. daylight saving time and shines high in the southeast before dawn.
Saturn (magnitude +1.1, in the head of Virgo) glows in the southwest during evening. The diagonal line of Saturn, Mars, and Venus is shrinking week by week. The three planets will bunch up low in the sunset in early August.
That was your night sky for the week ending on the 377th anniversary of the Catholic Church forcing Galileo to recant his view that the Sun, not the Earth, is the center of the Universe. He was wrong anyway, but it was a big step up the road.
9.6.10
Jupiter Dinged Again
19.5.10
Old Town Inn Completes The Partial Mind
Venus now moving from Taurus to Gemini) is the bright Evening Star shining in the west-northwest during and after twilight, and remains completely unmissable Capella is the bright star far to its upper right.
Mars (magnitude +0.9, in Cancer) is high in the west during evening, very far upper left of Venus along the ecliptic. Mars is moving eastward against the stars; week by week it's closing in on Regulus to its upper left. They'll pass each other on June 6th, 0.8° apart.
Jupiter (magnitude –2.2, below the Circlet of Pisces) shines in the east-southeast at the first light of dawn. Nothing else there is nearly so bright.
On Saturday the "star" and that’s star in quotes. above the gibbous Moon this evening (by about 8°: as seen from North America) is Saturn. The much fainter star about 2° to Saturn's lower right this week is Beta Virginis, which although my Latin doesn’t extend beyond amo agricola, means I think, virgin second class. And if you’re curious amo agricola means I love the farmer.
Saturn is high in the southwest during the evening. In a telescope Saturn's rings are tilted a mere 1.7° from edge-on, their minimum tilt for the next 15 years.
On Friday as dusk fades into night, turn binoculars or a telescope on Venus in the west-northwest. Look less than 1° lower left of Venus for the big open star cluster M35, but wait until the end of twilight
And that’s about it for this week a week that ends on the 468th anniversary of the ending of the Diet of Worms, when Charles V, Holy Roman Emperor, issued the Edict of Worms, declaring Martin Luther an outlaw, a bit like a pious German Billy the Kid I guess.
5.5.10
May 2010
30.4.10
Mo and I
Anyway I’ve been covering for Spider while he’s off on the mainland attending his gran’s funeral. And on Monday night I picked up Mo Widdop and before taking her own I drove down the mermaid car park to see Venus, and there it was, incandescent, the planet of love, and me and Mo, it was a very touching moment. And as an aside when Denis passes away, hopefully in many, many years to come Mo will become the widow Widdop, which I hope will be some consolation for her.
The summer constellations are beginning to appear in the dawn sky, Scorpio is there now with the full moon around an hour before Sunset, see the blog, because you won’t be up for it. Scorpio as you may know runs from 23 of October to 22 of November when it rises and sets with the sun. At the moment we’re in Taurus which sets a little after Venus at the moment but by the end of May it will be firmly attached to the Sun, and then it will be Gemini’s turn.
Tomorrow we have a full moon, which will give us fairly big tides for the upcoming weekend tedium. And a low tide for Sunday’s barbeque so hopefully it won’t come in and put the fire out hours before the end this year.
Mars, dimming farther into the distance, is high in the southwest during the evening. It's in Cancer east of the Beehive Star Cluster.
A bright Jupiter is low in the dawn. Look for it above the eastern horizon about 60 to 45 minutes before sunrise. Nothing else there is nearly so bright.
A not overly bright Saturn is high in the south during evening. Use the star map for Scilly on the blog to find it. In binoculars you should be able to Titan, which is Saturn’s largest moon, and is actually larger than Mercury.
That was your Night Sky over for the week ending on the 165th anniversary of William Walker departing from San Francisco with about 60 men to conquer Nicaragua.
Mo and I
Anyway I’ve been covering for Spider while he’s off on the mainland attending his gran’s funeral. And on Monday night I picked up Mo Widdop and before taking her own I drove down the mermaid car park to see Venus, and there it was, incandescent, the planet of love, and me and Mo, it was a very touching moment. And as an aside when Denis passes away, hopefully in many, many years to come Mo will become the widow Widdop, which I hope will be some consolation for her.
The summer constellations are beginning to appear in the dawn sky, Scorpio is there now with the full moon around an hour before Sunset, see the blog, because you won’t be up for it. Scorpio as you may know runs from 23 of October to 22 of November when it rises and sets with the sun. At the moment we’re in Taurus which sets a little after Venus at the moment but by the end of May it will be firmly attached to the Sun, and then it will be Gemini’s turn.
Tomorrow we have a full moon, which will give us fairly big tides for the upcoming weekend tedium. And a low tide for Sunday’s barbeque so hopefully it won’t come in and put the fire out hours before the end this year.
Mars, dimming farther into the distance, is high in the southwest during the evening. It's in Cancer east of the Beehive Star Cluster.
A bright Jupiter is low in the dawn. Look for it above the eastern horizon about 60 to 45 minutes before sunrise. Nothing else there is nearly so bright.
A not overly bright Saturn is high in the south during evening. Use the star map for Scilly on the blog to find it. In binoculars you should be able to Titan, which is Saturn’s largest moon, and is actually larger than Mercury.
That was your Night Sky over for the week ending on the 165th anniversary of William Walker departing from San Francisco with about 60 men to conquer Nicaragua.
21.4.10
Fireballs
From Friday through Sunday Venus and the Pleiades fit within a 5° binocular field of view in the west soon after sunset. With binoculars you should be just able to see Venus as a crescent leaning toward the setting sun. On Saturday a milky yellow Saturn shines to the Moon's upper left.
8.4.10
Mercury.
We have an unusual contender for this week’s main attraction, tiny little Mercury. Not that its overly bright, but for once its easy to, in fact this is as good an apparition as often-elusive Mercury ever puts on and with Venus lighting the way to it, you could hardly ask for Mercury to be any easier. Look to the WNW soon after sunset and you’ll very quickly be able to spot an extremely bright Venus, if you look a little to its right you be able to see Mercury.
Yesterday evening at around
It was a bit of a red letter day for me because it was the first time I could ever say I’d definitively seen Mercury, though I must have seen it from the plane window 6 weeks ago when it was completely over shadowed by Venus. The little planet is dimming rapidly now it was magnitude -.8 on the second but by the next week it will be right down to magnitude 1.4. So the next few days will give you your best viewing window, possibly for the next 140,000 years, but I’m speculating here.
Jupiter (magnitude –2.1) is emerging very low in the glow of dawn. Look for it just above the eastern horizon about 40 or 30 minutes before sunrise.
Saturn (magnitude +0.6, in the head of Virgo) is two weeks past opposition. Look for it in the east-southeast at dusk, higher in the southeast by late evening, and highest in the south by 11 or
That was your night sky for the week ending on the 40th anniversary of an oxygen tank on Apollo 13 exploding.
24.3.10
The Pliers Of Hercules
The giant, long-lived thunderstorm on Saturn known as the Saturn Electrostatic Disturbance (SED), a source of radio emissions detected by the Cassini spacecraft, has returned to amateur visibility as a small white spot, at least for users of large scopes and/or during moments of excellent seeing. It's above center barely past the central meridian here. "The SED is really brightening now!" writes Christopher Go, who took this image. "It is much more prominent than when I last imaged it." Update: As of March 18th it was fading and had reportedly split in two.