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Posts Made By: Dave Mitsky

December 18, 2002 12:44 PM Forum: Deep Sky Observing

Two Lunar Sunrise Rays, 2002/12/17 UT

Posted By Dave Mitsky
There are two corrections to my recent report on the two lunar sunrise rays.

First, the ray that Tony may have discovered was actually in the crater "G" northwest and directly adjacent to Lacroix.

Second, we used a Meade 2x Barlow lens, not a Tele Vue.

Dave Mitsky

December 18, 2002 03:35 PM Forum: Deep Sky Observing

Ganymede Occults Io, 2002/12/18

Posted By Dave Mitsky
Oops, try this link: http://skyandtelescope.com/printable/observing/objects/planets/article_774.asp

The article also appeared in the magazine.

Dave Mitsky

December 19, 2002 02:16 PM Forum: Deep Sky Observing

Planet X ????

Posted By Dave Mitsky
Do not utter the name N**** in vain or in any other way!


January 13, 2003 10:12 AM Forum: Deep Sky Observing

Close encounters Jovian moons

Posted By Dave Mitsky
Tony Donnangelo, Maura Smith, and I had a look at Ganymede and Europa after observing the Hesiodus Lunar Sunrise Ray. They formed a very close pair separated by a few arc seconds at most. We used his Takahashi FS-102 apochromatic refractor at magnifications up to 234x. There were definite size and color differences between the two Galilean satellites. After a much needed warm-up break we caught a glimpse of the GRS sometime around 2:30 UT as it approached the preceding limb.

Before Maura and I arrived at Tony's residence he observed a previously unreported triple sunrise ray in the crater Parry.

Tony and I also spent some viewing Saturn. The C ring was visible at the ansae along with a definite demarcation of the polar hood and two cloud belts.

Dave Mitsky

January 13, 2003 03:42 PM Forum: Deep Sky Observing

Astro-Paper

Posted By Dave Mitsky
Adam,

Here's another site - http://home.epix.net/~ghonis/

Dave Mitsky

January 15, 2003 09:53 AM Forum: Deep Sky Observing

Jupiter Satellite quesiton.

Posted By Dave Mitsky
Could it be a matter of the UT date versus your local date?

Dave Mitsky

January 16, 2003 10:05 AM Forum: Equipment Talk

Low power eyepieces for new scope

Posted By Dave Mitsky
I recommend a 24mm Tele Vue Panoptic or a 30mm Celestron Ultima if the Panoptic is too expensive.

Dave Mitsky

January 18, 2003 09:59 PM Forum: Deep Sky Observing

Deep-sky observing under full moon

Posted By Dave Mitsky
Jean-Marc,

Believe it or not, I have observed M51 and M66 during full moons using a 17" f/15 classical Cassegrain housed in a dome. Needless to say these galaxies did not look very pretty with the bright background sky but they were visible at high power. With the moonlight I probably would not have been able to locate them without the help of a DSC.

In addition to multiple stars, bright open clusters, and bright compact planetary nebulae, bright globular clusters can also be observed.

Dave Mitsky

January 18, 2003 10:14 PM Forum: Equipment Talk

I need a good wide field scope.

Posted By Dave Mitsky
At low power there will be little noticeable difference between rich-field views with the TV-76 and the various 80m f/5 Syntha scopes. If you want to look at the planets that's another matter but 76mm isn't enough aperture, IMO, to justify buying the Tele Vue refractor solely because of its planetary performance. If you want something better than a Chinese achromat the Borg and the Stellervue refractors mentioned are also worth considering as would be a Takahashi FS-78. You could also purchase an 80mm f/7 Apogee with a 2" focuser if they are still available.

There are several 20x80 giant binoculars that run $400 or less. However, since I bought an Orion ST80 in 1998 I rarely use my Celestron 20x80's and binocular guider.

Dave Mitsky

January 26, 2003 01:35 PM Forum: Equipment Talk

Barlow poll

Posted By Dave Mitsky
The Tele Vue Powermate but it's not a Barlow lens. :-)

Dave Mitsky

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