[sac-forum] Re: Messier Marathon results questions
- From: "Rick Tejera" <saguaroastro@xxxxxxx>
- To: <sac-forum@xxxxxxxxxxxxx>
- Date: Sat, 12 Apr 2008 18:59:45 -0700
Tim,
I wasn't trying to imply that you doubted the observations o M77. The thread
seemed to start out with questions of if it would've been possible at all. I
think the discussion morphed into more of a "How to find in twilight" talk
than anything else.
I too believe you saw the core of M77.
I was merely trying to remind folks not to take this all too seriously and
remember it's or fun, whether you see M77 or not.
If anyone took offense, my apologies.
Clear Skies
Rick Tejera
Editor SACnews
Saguaro Astronomy Club
Phoenix, Arizona
www.saguaroastro.org
saguaroastro@xxxxxxx
-----Original Message-----
From: sac-forum-bounce@xxxxxxxxxxxxx [mailto:sac-forum-bounce@xxxxxxxxxxxxx]
On Behalf Of Tim Jones
Sent: Saturday, April 12, 2008 13:32
To: sac-forum@xxxxxxxxxxxxx
Subject: [sac-forum] Re: Messier Marathon results questions
Hi Folks,
Let me start by saying again, I'm not in any manner questioning the
two reported sightings nor trying to cast aspersions on the viewers,
I'm trying to determine what Bob and I might have done differently to
have seen M77. The closing paragraph from my original post:
>>>> I'm not trying to cast doubt on the two reported sightings, just
>>>> trying to understand what we could have done differently from
>>>> what we did.
So Rick, please don't try to turn my question into something that it
wasn't and focus on the question at hand: What else could we have
tried to either validate or refute that the target that we saw was
M77? Your first two paragraphs did this very well, but I'm really not
sure where your third and fourth paragraphs come from in relationship
to the discussion.
AJ has responded that neither Dr. Aguirre nor George Robinson added
notes as to "how" they viewed the target. And, for those who didn't
discuss this with me at last night's meeting, many believe that what
we were actually viewing was the bright core of M77 and not a stellar
object as Bob and I originally thought; much as you mention in how
you locate and view M77. As for "tapping" the scope, we did try that
many times, so I guess that Bob and I qualify as members of your
"experienced observers" club.
However, we did get some good input from different parties last
evening on other things to try, including adding more power and then
seeing if we can get the focus sharp. If we can, we've got a star,
if it stays fuzzy, we've got the core.
Thanks to all for the discussion and tips last night.
Tim
On Apr 11, 2008, at 5:42 PM, Rick Tejera wrote:
> The times I've gotten M74 & M77 in twilight, I've had several star
> maps of the field, down to various magnitudes. Surprisingly, I've
> always found M74 to the easier of the two. The star field is easy
> to recognize and it's an easy star hop from Beta Arietis. Once I
> know where it is in relation to the star field averted vision
> brings it out ever so slightly.
>
> I use the same technique for M77. I just look for the "Star" that
> shouldn't be there in the field and that would be M77's core.
> Tapping on the tube certainly helps. I imagine any experienced
> observed knows this trick and would avail him/herself of it's use.
>
> While certainly a challenge this year, I see no reason to doubt Dr
> Aguirre's observations. Certainly no one who turned in a list to me
> and asked the high count posed no objection or doubt. Most said
> great job. After all the impossible is impossible only until
> someone does it.
>
> Besides, the objective of the Messier Marathon is to have fun. From
> the comments I heard as I collected the Checklists, this objective
> was met in spades.
>
> Clear Skies
> Rick Tejera
> Editor SACnews
> Saguaro Astronomy Club
> Phoenix, Arizona
> www.saguaroastro.org
> saguaroastro@xxxxxxx
>
> -----Original Message-----
> From: sac-forum-bounce@xxxxxxxxxxxxx [mailto:sac-forum-
> bounce@xxxxxxxxxxxxx]
> On Behalf Of AJ Crayon
> Sent: Friday, April 11, 2008 17:31
> To: sac-forum@xxxxxxxxxxxxx
> Subject: [sac-forum] Re: Messier Marathon results questions
>
> Tim, there are no other references by Dr. Aguirre or George
> Robinson on what they did to bag this elusive object. At least
> nothing more than what I've said earlier. Perhaps they did try
> tapping the telescope tube, but there isn't any reference on the
> list nor would I expect this to be mentioned.
>
> To your earlier reference - perhaps you saw the core of M77 and not
> a star. Quite possible. What I'd suggest is to wait until M77
> affords a better view, some months from now, and make an
> observation and see if it comes close to what you saw.
>
> AJ Crayon
> Phoenix, AZ
>
> ----- Original Message -----
> From: "Richard Harshaw" <rharshaw2@xxxxxxx>
> To: <sac-forum@xxxxxxxxxxxxx>
> Sent: Friday, April 11, 2008 5:17 PM
> Subject: [sac-forum] Re: Messier Marathon results questions
>
>
>> Tim, the only really bright star in that area IS Delta Ceti, so
>> either your alignment was not as tight as you thought (although
>> your grabbing what-- 108 -- M's shows it was on target), or your
>> FOV is bigger than you thought it was? There is a 9.02 mag star
>> about 15 min NE of M77, but that was not bright enough to be the
>> one Bob saw, is it?? But then you did say you were able to "SEE"
>> Delta-- did you mean through the EP or just with the naked eye,
>> binos or a spotter?
>>
>> Have you ever measured your FOV diameter using the timing of a
>> transit of a star?
>>
>> Richard Harshaw
>> Cave Creek, AZ
>>
>> -----Original Message-----
>> From: sac-forum-bounce@xxxxxxxxxxxxx
>> [mailto:sac-forum-bounce@xxxxxxxxxxxxx]
>> On Behalf Of Tim Jones
>> Sent: Friday, April 11, 2008 5:04 PM
>> To: sac-forum@xxxxxxxxxxxxx
>> Subject: [sac-forum] Re: Messier Marathon results questions
>>
>> Bob has updated me - it apparently wasn't Delta Ceti as Delta Ceti
>> would have been out of the FOV with both eyepieces, so now I'm
>> lost as to what the star was that we saw, but it was bright enough
>> to see even before astronomical twilight. Is it possible that we
>> were seeing the core of M77 and not a star? I'm now totally
>> confused :-O.
>>
>> Tim
>>
>>
>> On Apr 11, 2008, at 3:46 PM, Tim Jones wrote:
>>> As an added note to our tracking, we were able to see Delta Ceti
>>> for almost 10 minutes before we lost it behind the mountain.
>>>
>>> On Apr 11, 2008, at 3:39 PM, Tim Jones wrote:
>>>
>>>> I have to add my voice to the questions that have come up
>>>> concerning the viewing of M77. With two observers reporting
>>>> that they visually saw M77, I am curious as to the method used
>>>> and what, if any, filters were employed. Bob and I tracked M77
>>>> with a Celestron 9.25" SCT with 36MM and 25MM Plossel eyepieces
>>>> until M77 was physically below the mountain and the background
>>>> light continually obscured any chance of our seeing this Mag 8.9
>>>> object. Of course, our attempt at sighting M77 cost us M33... :-(
>>>>
>>>> I'm not trying to cast doubt on the two reported sightings, just
>>>> trying to understand what we could have done differently from
>>>> what we did.
>>>>
>>>> Tim
- References:
- [sac-forum] Re: Messier Marathon results questions
- From: Tim Jones
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- From: Tim Jones