June 21, 2001

Observer: Tom Campbell
Location: Iola, Kansas (Long: 95 30' W Lat: 37 55' N)
Equipment: 8" Discovery DHQ dob
Eyepieces: 1.25" Plössls (25mm, 15mm, 10mm, 6.5mm, 4mm)
Time: 10:20pm - 11:30pm CDT
Transparency: Clear
Seeing: Fair
Weather: Temperature in the mid-60s. There was a slight breeze.

Although the sky was clear tonight, the air felt a bit damp. I decided to go ahead and take out my equipment anyway. It's awful difficult for me to pass up clear skies.



M 106 Spiral Galaxy Canes Venatici 10:20pm CDT
NGC 4258 RA: 12 19.0 Dec: +47 18 Mag: 8.3

This is a fairly large galaxy, and nicely elongated. Because of the skyglow tonight, my best view was as 49X. By slightly jiggling the eyepiece, the arms showed up better. Even though the brightness is listed as being about the same as M94, this one appears to be much dimmer because of the larger area. It was difficult to make out any detail at all tonight.

 
 

At this point, I knew that the moisture in the air wasn't going to let me view galaxies. Cepheus was just clearing the trees, so I decided to look at some clusters and doubles there. Dew was starting to become a problem, and I didn't want to spend all my observing time moving my telescope around and wiping dew off my eyepieces.

 
b Beta Double Star Cepheus 10:45pm CDT
Alphirk RA: 21 28.7 Dec: +70 34 Mag: 3.2, 7.9
  At 49X, the split is obvious, but due to the primary's brightness, it looks much better at 81X. It is a magnificent double. Alphirk is a bright white and the companion is pale blue. Because of the brightness contrast, this makes for an interesting pair.
 
NGC 6939 Open Cluster Cepheus 10:55pm CDT
  RA: 20 31.5 Dec: +60 38 Mag: 7.8

This is a small and fairly faint open cluster, consisting of dimmer stars. It can be easily found, as it forms an equilateral triangle with the naked-eye stars h and q. The best view seemed to be about 188X, where it takes up about half of the field of view. 20 or so stars could be seen, but it hinted at being much richer. It is irregular in shape, and not very impressive at this aperture (at least with these viewing conditions).

 
IC 1396 Open Cluster Cepheus 11:00pm CDT
Elephant Trunk RA: 21 39.1 Dec: +57 30 Mag: 3.5
 

This is a pretty large open cluster, and fairly loose. It takes up more than the field of view in my 25mm (49X) eyepiece. The brightest member of the cluster is actually a triple star (S 2816). A few other doubles are in the cluster, but they aren't nearly as impressive.

The shape of the cluster is pretty irregular. The area surrounding S 2816 is almost circular in shape, with a few branches of stars trailing off in different directions. Without being able to use a lower magnification, I couldn't really tell which of the branches was actually the elephant trunk. This is a fairly rich region of sky and makes it somewhat difficult to tell where the cluster's edges are.

 
S 2816 Multiple Star Cepheus 11:00pm CDT
  RA: 21 39.0 Dec: +57 29 Mag: 5.6, 7.7, 7.8
 

This is a beautiful triple star. The brightest star is in the middle, with a fainter companion on either side of it, almost, but not quite in a straight line. Both companions are about the same magnitude. The brightest star is yellow, and the companions are white or perhaps bluish-white.

 
x Xi Double Star Cepheus 11:15pm CDT
17 RA: 22 03.8 Dec: +64 38 Mag: 4.4, 6.5
 

These stars are pretty close together. At 81X, however, they are nicely split. The brighter star is white, and the companion is pale yellow.

 
d Delta Double Star Cepheus 11:25pm CDT
27 RA: 22 29.2 Dec: +58 25 Mag: 3.9, 6.3
 

This double is nice and wide, easily separated at 49X. The main star is yellowish-white and the second star is medium blue. In the same field, there is another double, but it is much less impressive.

 

The dew was really bad at this point. My Telrad was fogging up almost as soon as I finished wiping it off. I decided to call it a night.


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