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Walter's LogBook |
| Thu/Fri, Mar 22/23, 2001 |
The second clear night this week! Imaging from the backyard in Oshawa again, it was a typical "punky" early spring sky. I have noticed that the Y-shaped Coma Berenices asterism is only visible
with averted vision! Twenty years ago from Oshawa, I could see the Rosette Nebula with my C8. Light pollution sure has gotten worse -- thank goodness for CCD!
Temperature range was from +8C to +3C (18:00 to 05:30). I continued with the MX916 camera tongight. I started out by imaging M81 (binned 2x2) and then did M82 in large format.
Just after 23:00, Doug Clapp arrived with a port accelerator and some other goodies. Using his digital video camera with infrared capability, he took some nighttime test footage -- these new
video cameras are amazing!
I imaged M101, M53, NGC5053 and then M5, binning 2x2. With a port accelerator hooked in, I then switched over to large format imaging, doing M5 (again), M12 (big and small), M10, M14, and finally
(during twilight!) M17. The port accelerator cuts the download time in half (20 sec in large format vs. 40 sec) which saves me 1 hour or more per night with the short exposures I do.
NOTE: The 2x2 binned images (376x301) are shown below.
Links to the larger images (752x601) are also provided below
and open in a new browser window.
| M81, Bode's Nebula |
63 minutes (63 x 60s) |
 |
Scope: 10" f/6.3 LX200
Camera: MX916 binned 2x2 (23.2x22.4u pixels)
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| M82, The Cigar Galaxy |
5 minutes (5 x 60s) |
| M82 |
(opens in new window) |
| M101, The Pinwheel Galaxy |
12 minutes (24 x 30s) |
 |
Scope: 10" f/6.3 LX200
Camera: MX916 binned 2x2 (23.2x22.4u pixels)
|
| M53 |
20½ minutes (41 x 30s) |
 |
Scope: 10" f/6.3 LX200
Camera: MX916 binned 2x2 (23.2x22.4u pixels)
|
| NGC 5053 |
10 minutes (20 x 30s) |
 |
Scope: 10" f/6.3 LX200
Camera: MX916 binned 2x2 (23.2x22.4u pixels) |
| M5 |
7½ minutes (15 x 30s) |
 |
Scope: 10" f/6.3 LX200
Camera: MX916 binned 2x2 (23.2x22.4u pixels)
|
| M5 |
8½ minutes (17 x 30s) |
| M5 |
opens in new window |
| M10 |
13 minutes (26 x 30s) |
| M10 |
opens in new window |
| M12 |
5 minutes (10 x 30s) |
 |
Scope: 10" f/6.3 LX200
Camera: MX916 binned 2x2 (23.2x22.4u pixels)
|
| M12 |
13½ minutes (27 x 30s) |
| M12 |
opens in new window |
| M14 |
10 minutes (20 x 30s) |
| M14 |
opens in new window |
| M17, The Omega Nebula |
11 minutes (22 x 30s) |
| M17 |
opens in new window |