This was my first visit to Fall Creek Falls for the 2015 Tennessee Fall Star Gaze. It’s a casual get together held at a clearing within walking distance from the Inn. The site is reasonably dark measuring 21.42+ on Friday and 21.31 on Saturday after some thundershowers upped the humidity level. Both nights were good so long as you were prepared for dew.
I spent both nights gathering data on SH2-155; the Cave Nebula. It’s a fairly dark object and I’d like more than the 4.5 hours of exposure time I got on it but a couple technical issues coupled with the early moon rise limited my time….
S 155, also known as the Cave Nebula, Sh2-155 or Caldwell 9, is a dim and very diffuse bright nebula within a larger nebula complex containing emission, reflection, and dark nebulosity. It is located in the constellation Cepheus.
Visually it is a difficult object, but with adequate exposure, makes a striking image. The nebula gets its name Cave Nebula from the dark lane at the eastern side abutting the brightest curve of emission nebulosity which gives the appearance of a deep cave when seen through a telescope visually.
This was my first time to Fall Creek Falls and I was not sure what to expect in terms of amenities. For those of you considering going: Restrooms are a 1000+ ft walk from the site. There are no restrooms at the field, nor is there any power, water, etc. The only things available at the site are trashcans. The Inn, as I mentioned before, offers restrooms, along with buffet meals, vending machines, and accommodations on the lake.
Another decent night at the AAAP Greene County Dark Sky Site.
NGC 6914 is a reflection nebula nestled amongst the diffuse emission nebula in Cygnus.
Playing around with an 8mm circular fisheye lens as well for an all sky timelapse.
IC 5146 (also Caldwell 19, Sh 2-125, and the Cocoon Nebula) is a reflection/emission nebula and Caldwell object in the constellation Cygnus. The NGC description refers to IC 5146 as a cluster of 9.5 mag stars involved in a bright and dark nebula. The cluster is also known as Collinder 470. It shines at magnitude +10.0/+9.3/+7.2. Its celestial coordinates are RA 21h 53.5m, dec+47° 16′. It is located near the naked-eye star Pi Cygni, the open cluster NGC 7209 in Lacerta, and the bright open cluster M39. The cluster is about 4,000 ly away, and the central star that lights it formed about 100,000 years ago; the nebula is about 12 arcmins across, which is equivalent to a span of 15 light years. When viewing IC 5146, dark nebula Barnard 168 (B168) is an inseparable part of the experience, forming a dark lane that surrounds the cluster and projects westward forming the appearance of a trail behind the Cocoon.
This object was named ‘The Running Man Nebula’ by Texas Astronomical Society member Jason Ware. Approximately 20 years ago his down stairs neighbor looked at the object and said it looked like a running man. He brought this up a TAS club meeting and the name stuck. Now widely accepted as ‘The Running Man’.