Image of the day

Captured by
Byron Davies

Sh2-86 (NGC-6820)

My Account

New to Astromart?

Register an account...

Need Help?

A few less frequently observed objects

Started by Inge_S, 11/05/2008 09:29AM
Posted 11/05/2008 09:29AM Opening Post
Last night I was out observing with members of our local astronomy club. Many of the people present had never looked through a telescope before, and therefore much of the time was spent with show objects. Telescopes available were two Portaballs (My old 8-inch sold to one of the club members and my present 12.5-inch).

The demo objects included M57, M15, Perseus double cluster, M13, M27, M71, Veil nebula, M31, M37, M81/82, Albireo and others. The Veil nebula with the O-III filter turned out to be the object that impressed these people the most.

The other people left after about two hours, and then I decided to spend some time with fuzzyball observing on my own. I started with M74 which actually is not a fuzzyball in the 12.5-inch, but reveals a faint spiral pattern and even a hint of condensations in the spiral arms.

Afterwards I observed NGC6946 in Cepheus, where it also was possible to make out the spiral arms. To get most detail in the galaxies I used my 9mm Nagler giving a power of 167x. At low magnification, both M74 and NGC6946 looked rather featureless.

After this I had a look at NGC1023. This galaxy is very bright, but for some reason I often forget to observe it (probably because there are so many other goodies in the region. At 167x I could make out a faint star a small distance west of the core, and something looking like a star or condensation at the eastern end of the halo. I still think I haven't seen a good photo of NGC1023, so if anyone can provide me a link I'll be very grateful.

After observing these galaxies (in addition to some other fuzzies in the region) I observed some interesting planetaries. NGC1514 on the Taurus/Perseus border is a very nice planetary which deserves more attention than it gets. Without a filter it is a bit difficult to detect. It appears as a star with a hint of nebulosity around. This is one of the objects where the O-III filter almost works like magics. With the filter and 167x magnification it lookes like a star surrounded by a delicate glass sphere containing some elusive condensations. A very beautiful sight.

Further north, in Camelopardalis is another planetary with a similar appearance. NGC1501 is, however, a brighter nebula, while the central star is less prominent. I prefer to observe NGC1501 without a filter.

Going back to Perseus I finally succeeded in locating IC2003. This planetary is probably among the more seldomly observed objects. It isn't actually a challenge to detect, and can probably be seen in a small refractor. But it isn't a show object either, since it is very small, and looks like a star at low magnification. I used the blinking technique with the O-III filter to locate it. I have tried this several times before without finding it, so this was my first sighting of IC2003. At 167x it appeared as a small greyish disc.

After observing this planetary I decided to go home. Orion was still to low in the sky, but I look forward to meeting the winter constellations again.

Inge S
Posted 11/05/2008 01:41PM | Edited 11/05/2008 01:49PM #1
<< I still think I haven't seen a good photo of NGC1023, so if anyone can provide me a link I'll be very grateful. >>

Try this one:

http://aida.astroinfo.org/displayimage.php?album=8&pos=277

Look for file 278/383. Click on the image for the high res version.

regards,
dan

Posted 11/05/2008 04:23PM #2
Thank you for mentioning the Perseus Double Cluster!! Been a favorite of mine lately and my little scope shows it off so well. Winter is a favorite observing time for me too!

Dawn


Inge Skauvik said:

Last night I was out observing with members of our local astronomy club. Many of the people present had never looked through a telescope before, and therefore much of the time was spent with show objects. Telescopes available were two Portaballs (My old 8-inch sold to one of the club members and my present 12.5-inch).

The demo objects included M57, M15, Perseus double cluster,...

Inge S
Posted 11/05/2008 11:49PM #3
Nice report Inge. I observed IC2003 for the first time last Jan 1. My notes say I observed it at 175x and that it was a "nice bright, small, round disk." I love getting good looks at M74 and 6946 as well. Most of the time the views of those two galaxies is washed out. When observing them from dark site on a good transparency night though, the result can be an "Oh WOW!!"

Andreas

DSOs observed:
NGCs 2005, ICs 103, Other 70, Palomar GCs 6, Abell PNs 12, Herschel 400: 316.
Equipment
Celestron CPC 1100, Lunt 60mm Ha Solar Scope
Posted 11/06/2008 02:18AM #4
Inge--

A nice night! Your list of showpieces for the sky tour you gave is identical to the one I used at the last new moon for my daughter's 6th grade class. My 10" and 16" reflectors, and a colleague's 5" refractor were on hand. A good time was had by all, etc.

I also often overlook 1023, a nice target. A nearby one, also overlooked, is 925 in Triangulum.

Your description of 1514 is very tantalizing. I'll have to look for it. Unfortunately I sold my OIII! Maybe the UHC will do pretty well...

Thanks for the report!

George

George Golitzin