David Ratledge's
Comet Nostalgia
A walk down memory lane for Comet lovers

From seeing Comet Arend-Roland over the rooftops of Lancashire as a boy, Comets have always held a fascination for me. I did manage to see Comet Kahoutek - just - but it was the return of Halley's Comet in 1986 that re-awakened my interest. In this selection of photographs and images I have included the good, the bad and the ugly. If it's the latest breaking comet news you are interested in then please visit Tim Puckett's Cometwatch pages. It's pure Nostalgia here!

Contents:-

  • Comet Halley, 1985
  • Comet Bradfield, 1987
  • Comet Levy, 1990
  • Comet Swift-Tuttle, 1992
  • Comet Hyakutake, 1996
  • Comet Hale-Bopp, 1997
  • Comet 55P/Tempel-Tuttle, 1998
  • Comet 21P/Giacobini-Zinner, 1998
  • Comet Lee, 1999
  • Comet Linear WM1/2000, 2001
  • Comet Ikeya-Zhang, 2002
  • Comet Machholtz, 2005

The images will take a while to load but most good things in life are worth waiting for!

Version 3.3


Comet Halley 1985/6

Although it was to make its closest approach during spring 1986, it was only during late 1985 that Halley was well placed for viewing from the northern hemisphere.

My first glimpse of Halley's Comet was in the early hours of October 25th. I took two images not realising that its movement would be so evident in one hour. These images were published in the Bolton Evening News. Both pairs were taken with my 12.5inch Newtonian with exposures of around 10 minutes.

The second pair was taken 3 weeks later and Halley was much brighter. These images were used by the Lancashire Evening Post and got me me into trouble. The local polytechnic, which runs its own observatory, had published its picture which was awful. When the newspaper saw my picture they splashed on a full page. Needless to say the polytechnic were not pleased that an amateur had taken a better picture than the professionals.


Halley and the Pleiades
On the 17th November, Halley passed below the Pleiades giving the opportunity for a unique picture. Amazingly it was clear in Lancashire, as it was much of the month, and I was able to get this picture. I used a 300mm f5.6 lens which fitted them both in. The motion of Halley is very apparent.

During December, Halley brightened but for us northern observers it had started it dive south. This was my last photo taken with my 12.5inch f/6 Newtonian and my only one where a tail has become obvious. It would still be visible in early January 1986 but it was then too low for me to photograph. It was of course best seen from the Southern hemisphere where it brightened considerably and "grew" a prominent tail.

Comet Bradfield 1987s

With this comet, his thirteenth, Australian Bradfield became the most prolific comet discoverer of this century. He was later to be overtaken by the Shoemakers.

Not a spectacular comet but it did reach unaided eye visibility, peaking around magnitude 4 in November. From our part of the world, it was actually brighter than Halley but went virtually unnoticed. My picture was taken early December 1987 using a 6 inch f3.6 Schmidt-Newtonian.

Comet Levy 1990c

Discovered by David Levy of Sky and Telescope magazine, this comet was probably the brightest after Halley, although still not the big one we were waiting for.

Both these photos were taken with a 6inch f3.6 Schmidt-Newtonian. The picture left was taken in July when the comet was small but showed a twisted gas tail. A month later (below) the comet was bigger but the gas tail was fainter.

Comet Swift-Tuttle 1992

Comet Swift-Tuttle is one of the biggest known periodic comets and achieved much notoriety when the popular press realised that it could collide with Earth.


Comet Swift-Tuttle 1992
It was seen in 1862 and named Swift-Tuttle after its discoverers with its orbit calculated as approximately 120 years. However its fame is due to the fact that it could one day collide with Earth as the two orbits intercept each other. In fact debris left by this comet causes the Perseid meteor shower, which is visible every July and August. There was much interest in recovering this comet for obvious reasons. When it failed to reappear there was speculation that it had perhaps disintegrated. It was eventually recovered in 1992, 10 years later than predicted. Based on new observations, its orbit was recalculated and it was found to have been seen many times before going back 2000 years, being in fact Comet Kegler of 1737. However it proved impossible to calculate a reliable orbit but using the best information the Comet will miss Earth by 15 days in 2126. You can sleep easily in your beds now!

Its appearance in 1992 was one of its worst, requiring binoculars to see it. My image here just about reveals its tail. It was taken on 13th November 1992 using a 135mm telephoto lens.


Comet Hyakutake 1996

Comets are like buses - none for a long time then two come at once. Just as we were waiting for Hale-Bopp along came this one. Although not intrinsically bright, its close passage to earth meant that it was spectacular with probably the longest tail in living memory.
Weather was unkind in Lancashire during it closest approach. We did glimpse it on the Saturday night which despite the clouds showed that it was going to be spectacular. The photograph below, I got on the following Tuesday evening (26th March) from Rivington on our Society's viewing night. There were some clouds and moonlight which made it difficult.
Closest Approach


Receding from Earth

The picture left was taken on 5th April when it was much further away. It still shows a reasonable tail but nothing like the size of that during its closest week. My final view was in April over the Howgill Fells with Venus at the left - can you spot the California nebula?


Hyakutake over the Howgills


Comet Hale-Bopp 1997

For once a comet that lived up to expectations. Because of its location in the sky, vision of it was blocked out from my Lancashire observatory. The images here were all taken from Cumbria using telephoto lenses and film, which turned out to be ideal for recording this large comet.


Probably my best shot. It was taken on Good Friday (8-00pm) 28th March 1997 with 300mmf4 lens, exposure 3 minutes using Scotchchrome400.


At this time, Comet Hale-Bopp was both a morning and evening object. This image was taken on Sunday (5:05am) 9th March 1997 with 135mmf4 lens, exposure 2 minutes. To take it I set my camera tracker up in the middle of the A683 - there's not much traffic at that time in the morning!


Digital image processing can reveal hidden details. In this case a rotational gradient filter has been used to show the jets coming from the cometary nucleus that would otherwise have been invisible.


Comet 55P/Tempel-Tuttle 1998

This faint comet, with a period just over 33 years, is at first glance not worth a second look. However, its appearance belies its significance. It is in fact the "parent" of the well known Leonid meteor shower. This meteor shower has peaked dramatically following returns of the Comet in the past, such as the one of 1833 shown right.

In more recent times, the 1966 shower was one of the most spectacular ever recorded and there has been intense speculation as to whether the same will happen again after its 1998 appearance. Whatever you do don't miss the Leonids on the night of 17/18th November 1998 - there is no moon so you could see the show of a life-time!


The Leonid meteor storm of 1833


Comet Tempel-Tuttle
Visually Temple-Tuttle is very disappointing. It is faint and produces little dust so doesn't have a prominent tail and unless it passes very close to Earth it will be inconspicuous. In fact in its 1899 and 1932 perihelion it wasn't even seen at all. In the 1998 approach it was unfortunately closest before perihelion when it was approximately 33 million miles away and just seeing it was an achievement, which myself and Gerald Bramall did with my 16 inch.

This image was taken by Gerald Bramall and myself on 19th January 1998 using a 6 inch Schmidt-Newtonian and a HiSIS CCD camera. It is a composite of 13 x 1-minute exposures - hence the multiple star images caused by the extremely rapid movement of the comet. This image was selected as "Picture of the Day" by the NASA/Ames Research Center for their Leonid 1998 Website.


Comet 21P/Giacobini-Zinner 1998

Just like Tempel-Tuttle, this comet is famous for its meteor shower rather than its disappointing appearance. The meteor shower derived from it is the Giacobinids or Draconids. As there are several Draconids it is best to stick with the former name when talking about its asscoiated meteors. Giacobini-Zinner is one of Jupiter's family of comets with its furthest point from the Sun being just outside Jupiter's orbit. Its period is 6.6 years and the Earth intersects its orbit on the 8th or 9th of October. The best showers seem to occur when the comet itself has just passed this point, leaving debris behind.


Comet Giacobini-Zinner
In 1933 there was a spectacular Giacobini meteor storm visible across Europe. Again there was a great storm in 1946 with a lesser one in 1985, but most years bring nothing at all. Only time will tell what this year's close encounter will bring on the evening of 8th October 1998! One thing is certain if there is a storm, only those outside looking will see it!

This image was taken by Gerald Bramall and myself on 2nd October 1998 using a 6 inch Schmidt-Newtonian and a HiSIS CCD camera. It is a composite of 5 x 1-minute exposures - with a break for clouds which resulted in split star trails.


Comet Lee 1999 H1

Comet Lee was discovered by Steve Lee in April 1999 at a star party near Mudgee, Australia.


Comet Lee 1999 H1, 4th October 1999
Steve was to give a talk at the Party about the planetary nebula (PN) NGC5189 and decided to take a look at it first through a friends 16 inch Dobsonian. He failed to find the PN but came across an unfamiliar object which looked like a comet. It was about magnitude 9 and was clealy moving! After frantic phone calls, Steve managed to inform Brian Marsden and the rest is history. But if Steve had been using a computer controlled telescope, which would have gone straight to NGC5189, he would not have made his discovery!

Steve and I had been working together on images for a new book and it wasn't until that was out of the way that I had time to take at look. There had been sightings of an anti-tail in August but I was too late.

This image was taken on 4th October 1999 using a 6 inch Schmidt-Newtonian and a HiSIS CCD camera. It is a composite of 6 x 90 second exposures.


Comet Linear WM1/2000

Although discovered in 2000 it was late 2001 when the comet reached its best in northern lattitudes.


Comet Linear WM1/2000 , 22nd November 2001
A feature of this comet was the speed with which it moved across the sky. This is evident in the lengths of the star trails in my image, in just 30 minutes. I was also able to make a movie from the images showing its speed. The movie file is unfortunately too large to fit here.

Evident in the image is a faint jet at the 8 o' clock position.

The comet was imaged when left (east) of the Square of Pegasus. It was taken on 22nd November using a 6 inch Schmidt-Newtonian and a HiSIS CCD camera. It is a composite of 50 x 30 second exposures.


Comet Ikeya-Zhang 2002

From a dark site this was a spectacular naked-eye comet with the tail plainly visible.
Wide view with 50mm lens - note M31 below an left


Shot with 135mm lens

It was one of those comets that starts in the west as an evening object and works it way around the northern sky to become a morning object in the west. It was never in view from my observatory so I had to resort to film and a simple camera tracker. These photos were taken from Cumbria during twilight - it doesn't get dark till midnight up there at that time of year.

They were taken on the 6th April 2002.


Comet Machholz, C/2004 Q2

For once a comet favourably placed for observers in the Northern Hemisphere! It was at its best in January 2005.
Wide view with a Takahashi 106mm f/5 and Canon 300D


Shot with 50mm lens and Pentax *ist Digital

Visually it was a big green blob which was easy in binoculars, even from light polluted skies. However, the tails (dust and ion) were both too faint to see in binoculars. It passed within about 2 degrees of the Pleiades on the night of January 7th but that night was clouded out for me. Nevertheless on the previous night it was reasonably close to make a nice picture.


Hope you enjoyed the walk down memory lane. If you want to use any of the images please ask first.

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