|
Object |
M1- Crab
Nebula |
|
Info |
This is a super nova remnant, situated in the
constellation of Taurus.
Dreyer description: Very bright, very large, extended 135° +/-, very
gradually little brighter middle, resolvable, but mottled; = M1. |
|
Date |
19/ 11/ 04 |
|
Location |
BayTop
Observatory- Streaky Bay South Australia |
|
Instrument |
Vixen
VC200L working @ f4.7 with Hm made focal reducer |
|
Mount |
Vixen 'GPDX'
controlled by a Mel Bartels Goto System |
|
Camera (CCD) |
Starlight
Xpress HX516 monochrome with Hm, made filter slider |
|
Exposures |
L:
50' R:25' G:25' B:25' (5' sub exposures all
unbinned) Dark frames removed. R=1.1/ G=1/ B=1.2
colour ratio |
|
Guiding |
Sky
Watcher-f5 ST Refractor & a Meade LPI imager attached with
main scope on a home made accessory plate. |
|
Filters |
Astronomik
Type 2 LRGB set |
|
Notes/ Conditions |
Conditions- Windy at first then settled. Seeing average.
Object 33 degrees above the horrizon to the north. Moon phase, 54.51.
Luminance, red & green channels imaged while moon was still in the sky.
Blue channel imaged as it was setting to the west. First run with home
made accessories plate. |
