Bernd Brinkmann´s

Comet C/1999 U4 (Catalina-Skiff)

date (yy/mm/dd)

time (UT)

exp. time (min/sec)

camera / telescope

film / CCD

filter

image size

Remarks

stars down to mag 16.6 (V) are visible

2002/03/29

21:17:05
-
21:23:15

4 x 120 sec

120 mm refractor
@ f / 5

Starlight SX

---

17.8' x 17.8'

processing with MIRA A/P:
dark
flat
register
combine (sum)
write FITS

processing with Photoshop:
open FITS
pixel rectification
log scaling
clipping
save as JPEG

at lower center 16.2 mag galaxy UGC 5942 is visible
limiting magnitude is 17.7 (V)

2002/02/16

21:40:35
-
21:49:24

4 x 180 sec

120 mm refractor
@ f / 5

Starlight SX

---

18.9' x 16.8'

processing with MIRA A/P:
dark
flat
register
combine (sum)
write FITS

processing with Photoshop:
open FITS
pixel rectification
log scaling
clipping
save as JPEG

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