Adam Block- Advanced Observing
Administrator
Tom Teters- Project Proposer
James Teters-Observer (passed)
This is a group of six interacting galaxies on the
Serpens Caput-Hercules border, taken with a 16" Meade
SCT.
Five of the galaxies exhibit an expected ~4400 mi/s recessional speed for
objects at ~235 million light
years.
While one galaxy, the Seyfert spiral ('e') has an aberrant red-shift of
19,993 mi/s. It appears to be in
physical
contact with the group. There are unknown objects between it and the 'b'
component. My thinking is
that
these could be dynamically stripped globular clusters from the two galaxies.
I have not been able to get
images
with enough resolution to distinguish characteristics. Also the 'd'
& 'd1' component have no apparent
spirality
and and a disruption in one end. Dust lane or passage evidence?
Adam wrote: "So, these images are at f/10 no focal reducer,
no filters. If these
images do not provide
enough...
or at least new data... Next spring will most likely be the next
opportunity. We have started the
public
programs- so the early evening times are taken.
Ok, here is what I got- Apparently at f/10 I can
not
T&A (track & accumulate) for more than 5 minutes- compared
to 15 with the focal reducer in. I took two
images-
and then combined those. (TT: Aug 28, 2003, I used RegiStax 2 to clean
up the 3rd image) So
attached
here are 3 images. I will continue to bug Meade...
After working out a few bugs, it's now possible to take a guided exposure
(yes, with the autoguider) for up
to
15 minute integration times! This work is still being done with the f/6.3
focal reducer..."
Adam is on the verge of being able to get the data I was originally looking
for. Adam said, "As you know,
your
object is unfortunately not well placed in the sky. Spring is still
looking like the first opportunity." So I
am
awaiting with anticipation the spring months when Hercules/Serpans-Caput
is high in the sky around 10 pm
or
so.
Sometime later Adam took i upon himself to reinvestigate and image this object.
Hubble Space Telescope Pre-Co-Star Images
The
image shows the Seyfert, the bright spots in the spiral component
'e' on the left,
are
most probably Seyfert regions. The other component 'b' on the left,
in the area I'm
interested
in studying. These images are from Sulentic and Keel of U. of Alabama-Tuscaloosa.
I
hope this group will be re-imaged by the HST, with Co-Star optics. It was
in 2003 by English,
et
al from Canada. Images to be included: SkyView images RoSat X-ray image
any others I can
'dig'
up, but they are RARE! In using the FitsView software I was able to detect
the dark dust
band
in 'b'. Shown here.
Reditted October 22, 2022 Tom Teters Think Cosmic!