Phobos and Deimos

I saw these for the first time last night with my 18 inch and a 3.8mm
Orion Ultascopic. I had to put Mars just outside of the fov. Deimos
was easy but Phobos, which was considerably closer to Mars, was fairly
difficult. Have many out there seen these babies. I also saw two
Uranian moons as well last night from my light polluted back yard.

In article ,
(Darren Drake) wrote:

I saw these for the first time last night with my 18 inch and a 3.8mm
Orion Ultascopic. I had to put Mars just outside of the fov. Deimos
was easy but Phobos, which was considerably closer to Mars, was fairly
difficult. Have many out there seen these babies. I also saw two
Uranian moons as well last night from my light polluted back yard.


6" f/9.4 APO
5mm Tak LE, 287X

Last night was my 5th observation of Deimos in this apparition. I've
noticed that if all other things are equal, it is easier now that I know
what to expect. Phobos is another matter- I've seen it with certainty
only once.

Also, I've honed my technique somewhat, and that may prove useful when I
go looking for Titania & Oberon tonight.

Starry Skies,
Rich

On 6 Sep 2003 09:21:21 -0700, (Darren Drake) wrote:

I saw these for the first time last night with my 18 inch and a 3.8mm
Orion Ultascopic. I had to put Mars just outside of the fov. Deimos
was easy but Phobos, which was considerably closer to Mars, was fairly
difficult. Have many out there seen these babies. I also saw two
Uranian moons as well last night from my light polluted back yard.

Deimos definately (6" newt 4mm 3X Barlow) and again like you by taking
out of the FOV.
Phobos well I dont use an occulting bar, I *think* I have seen it, but
there are some other 11/12 mag stars in the area where it was at
elongation.
Still waiting for a decent nights seeing to conclude on way or the
other

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On Sat, 6 Sep 2003 19:17:39 +0000 (UTC), Office Manager ...reflected:

On 6 Sep 2003 09:21:21 -0700, (Darren Drake) wrote:

I saw these for the first time last night with my 18 inch and a 3.8mm
Orion Ultascopic. I had to put Mars just outside of the fov. Deimos
was easy but Phobos, which was considerably closer to Mars, was fairly
difficult. Have many out there seen these babies. I also saw two
Uranian moons as well last night from my light polluted back yard.

Deimos definately (6" newt 4mm 3X Barlow) and again like you by taking
out of the FOV.
Phobos well I dont use an occulting bar, I *think* I have seen it, but
there are some other 11/12 mag stars in the area where it was at
elongation.
Still waiting for a decent nights seeing to conclude on way or the
other

Do Mars' moons exhibit diffraction rings?

Alan

Another tough one is Saturn's Mimas. I have seen it but it was difficult.

Del Johnson


"Darren Drake" wrote in message
om...
I saw these for the first time last night with my 18 inch and a 3.8mm
Orion Ultascopic. I had to put Mars just outside of the fov. Deimos
was easy but Phobos, which was considerably closer to Mars, was fairly
difficult. Have many out there seen these babies. I also saw two
Uranian moons as well last night from my light polluted back yard.

"Alan W. Craft" wrote:

Do Mars' moons exhibit diffraction rings?

They're not bright enough to produce diffraction rings that can be seen
visually in any telescope.

Mike Simmons