| Ursa
Minor (Little Dipper)
(RA 2h 49m, Dec 89º 14') |
| <<
Main |
| The
photo below was obtained by combining three 8-sec exposures. Many +5th magnitude stars are apparent. The original sized photo reveals up
to +7th magnitude stars. The Greek "alpha" marks the North Star, named
"Polaris".
(mouse over the
photo to see star chart)
|
 |
| Camera: |
Canon
G1 Digital |
Category: |
Astronomy |
| Condition: |
Outdoor
at Night |
Ext.
Light Source: |
None |
| Format: |
JPEG
2048 x 1537 (fine) |
F-Stop: |
2.0 |
| Speed: |
8
sec |
Exposure
Comp.: |
0 |
| ISO: |
100 |
Metering
Mode: |
Center-Weighted
Ave. |
| White
Balance Mode: |
Daylight |
Distance: |
Infinite |
| Focal
Length: |
7
mm |
Tripod: |
Yes |
| Filter: |
None |
Resized: |
Yes |
| Flash: |
None |
Editing
Software: |
Photoshop
6
Corel Photo 9 |
| Other: |
Employed
"darkfield subtraction" and
"screened-stacking" techniques to remove CCD noise and
produce the effect of longer exposure, respectively. |
© 2001 by Arif. Email at arif06880@yahoo.com. |