2003-03-01:
After an evening of playing with our associations new DMK21AU04.AS
camera in Manfred Böhler's observaory, I set up my equipment
at home to use the clear sky to do another picture of comet
Lulin before the clouds and the moon spoil the show:

Telescope: |
150mm f/5 Newtonian |
Camera |
Nikon D200 |
Exposure: |
6x60s, ISO 800 |
Date: |
2009-03-01 ~02:28 UT |
Processing: |
Preprocessing (Dark correction), Alignment
& stacking in IRIS, histogram adjustment curves, color
correction in Photoshop. An image that was registered
on the stars was combined with an image that was registered
on the comet nucleus were combined to create the image
above. |
This is an animation created from the 6 individual images
used for the composite above, it shows the movement of the
comet agains the background stars:

2009-02-26:
After waiting in vain the whole evening for the sky to clear,
I went to bed. But I was not sleeping too well, and when I
awoke at 03:00 am, I saw some starst through our bedroom window.
I grabbed my 15x50 binoculars and easily found Comet Lulin
below the constellation of Leo, with the 15x50 the tail was
easily visible, even through the suburban sky that I have
at home.
I managed to get myself dressed and set up the Super Polaris
mount on our roof, and managed to get the following images.
I stopped imaging when clouds rolled in. At 4:30 I was back
in bed, only to get up for real at 06:00 - yawn!

Lens: |
Nikon 70-210mm f/4 @f/5.6 |
Camera |
Nikon D200 |
Exposure: |
10x60s, ISO 800 |
Date: |
26th, February 2009 ~03:00 UT |
Processing: |
Preprocessing (Dark, Flat & Bias
correction), Alignment & stacking in IRIS, histogram
adjustment curves, color correction in Photoshop. |
|

If you move the mouse over the image you will
see an annotated version with some stars identified.
Lens: |
Nikon 85mm f/1.8 AF @ f/4 |
Camera |
Nikon D200 |
Exposure: |
10x60s, ISO 800 |
Date: |
26th, February 2009 ~02:30 UT |
Processing: |
Preprocessing (Dark, Flat & Bias
correction), Alignment & stacking in IRIS, histogram
adjustment curves, color correction in Photoshop. |
|