| Science Forum Index » Astro - Amateur Forum » IC 59 and 63 - Reflection and Emission Nebula in Cas... |
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| Anthony Ayiomamitis... |
 Posted: Thu Nov 05, 2009 10:28 am |
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Guest
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Dear group,
My second result from last night which also involved four hours total
exposure time (12x20min, H-a) involved the two dim and difficult
nebulae IC 59 and IC 63 in Cassiopeia which lie within my 40' field of
view. Owing to their very close proximity to the variable star gamma-
Cas (mag 2.47!), the already dim nebulosity is difficult to tame and
good contrast is most-difficult. The nebulosity at the bottom left is
IC 59 (a reflection nebula) whereas the triangular nebulosity at the
upper right is the emission nebula IC 63.
For a glimpse of last night's result, please see http://www.perseus.gr/Astro-DSO-IC-59-63.htm
.. The image is rotated 180 degrees with north being at the bottom so
as to be compatible with third-party existing results. This result is
also just a test (photon fix under non-ideal conditions) and will be
revisited for an (Ha)RGB result when the moon out of the way.
A search on the internet yielded just a handful of results and which
may be explained by the lack of contrast due to gamma-Cas.
Anthony. |
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| Anthony Ayiomamitis... |
| Posted: Thu Nov 05, 2009 11:38 am |
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Guest
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On 5 ÍïÝ, 23:31, Sam Wormley <sworml... at (no spam) mchsi.com> wrote:
[quote]Anthony Ayiomamitis wrote:
Dear group,
My second result from last night which also involved four hours total
exposure time (12x20min, H-a) involved the two dim and difficult
nebulae IC 59 and IC 63 in Cassiopeia which lie within my 40' field of
view. Owing to their very close proximity to the variable star gamma-
Cas (mag 2.47!), the already dim nebulosity is difficult to tame and
good contrast is most-difficult. The nebulosity at the bottom left is
IC 59 (a reflection nebula) whereas the triangular nebulosity at the
upper right is the emission nebula IC 63.
For a glimpse of last night's result, please seehttp://www.perseus.gr/Astro-DSO-IC-59-63.htm
. The image is rotated 180 degrees with north being at the bottom so
as to be compatible with third-party existing results. This result is
also just a test (photon fix under non-ideal conditions) and will be
revisited for an (Ha)RGB result when the moon out of the way.
A search on the internet yielded just a handful of results and which
may be explained by the lack of contrast due to gamma-Cas.
Anthony.
<smiling
[/quote]
Thanks Sam!
We have been experiencing a mild early winter so far and I sincerely
hope the trend continues so as to FINALLY have a productive winter and
especially in light of the longer nights which characterize this part
of the year.
Anthony. |
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| Sam Wormley... |
| Posted: Thu Nov 05, 2009 4:31 pm |
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Guest
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Anthony Ayiomamitis wrote:
[quote]Dear group,
My second result from last night which also involved four hours total
exposure time (12x20min, H-a) involved the two dim and difficult
nebulae IC 59 and IC 63 in Cassiopeia which lie within my 40' field of
view. Owing to their very close proximity to the variable star gamma-
Cas (mag 2.47!), the already dim nebulosity is difficult to tame and
good contrast is most-difficult. The nebulosity at the bottom left is
IC 59 (a reflection nebula) whereas the triangular nebulosity at the
upper right is the emission nebula IC 63.
For a glimpse of last night's result, please see http://www.perseus.gr/Astro-DSO-IC-59-63.htm
. The image is rotated 180 degrees with north being at the bottom so
as to be compatible with third-party existing results. This result is
also just a test (photon fix under non-ideal conditions) and will be
revisited for an (Ha)RGB result when the moon out of the way.
A search on the internet yielded just a handful of results and which
may be explained by the lack of contrast due to gamma-Cas.
Anthony.
[/quote]
<smiling> |
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