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ROBERT FREE
sage
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Reged: 03/20/11

Loc: SARASOTA,FL
Mercury feb 2013 drawings
      #5693057 - 02/21/13 04:24 PM Attachment (29 downloads)

at half phase merc size is 7 1/2 seconds of arc.

Edited by ROBERT FREE (02/21/13 04:26 PM)


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Dean Norris
Carpal Tunnel
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Reged: 11/05/08

Loc: Santa Cruz, Ca
Re: Mercury feb 2013 drawings new [Re: ROBERT FREE]
      #5693079 - 02/21/13 04:32 PM

Robert,

Excellent sketch of the phases of Mercury. Your sketches show how quickly the orientation of the Mercury and Earth change.

Thanks for posting. Dean


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ROBERT FREE
sage
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Reged: 03/20/11

Loc: SARASOTA,FL
Re: Mercury feb 2013 drawings new [Re: Dean Norris]
      #5693174 - 02/21/13 05:23 PM

thx dean,use to have an 8'cave astrola many years ago.great optics an tom cave was a legend.

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Edward E
scholastic sledgehammer
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Reged: 03/26/06

Loc: Tucson, Arizona
Re: Mercury feb 2013 drawings new [Re: ROBERT FREE]
      #5694637 - 02/22/13 12:41 PM

Very nice sketches. Thanks for posting them. It's amazing how fast Mercury goes through the first quarter phase.

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Astrodj
professor emeritus
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Reged: 08/24/11

Loc: Missouri
Re: Mercury feb 2013 drawings new [Re: ROBERT FREE]
      #5694817 - 02/22/13 02:06 PM

Thanks for the sketches. Nice timeline.


Quote:

thx dean,use to have an 8'cave astrola many years ago.great optics an tom cave was a legend.




True; some would even say notoriously so in the latter years of the company. I personally had a good (if somewhat lengthy) experience when buying my 10" Cave in 1975. Others I have talked to were not so fortunate in the late 70's.

Sorry, off topic. I have never observed Mercury with my Cave 10". I should, it's a great scope.


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Aquarellia
professor emeritus


Reged: 10/27/12

Loc: Provence, France
Re: Mercury feb 2013 drawings new [Re: Astrodj]
      #5697920 - 02/24/13 09:18 AM

Very nice sketches, thanks.

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SteelStar
super member


Reged: 11/08/09

Loc: Oklahoma
Re: Mercury feb 2013 drawings new [Re: Aquarellia]
      #5698096 - 02/24/13 11:19 AM

Very nice sequence of observations. The best I could do this time around was a bino view through tree limbs as the weather didn't cooperate. I like the fact you were able to follow Mercury several times and show the changing phase. I just do not have a good clear western horizon to allow this.

Thanks for the view. Good effort and well done.


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ROBERT FREE
sage
*****

Reged: 03/20/11

Loc: SARASOTA,FL
Re: Mercury feb 2013 drawings new [Re: SteelStar]
      #5699026 - 02/24/13 10:24 PM

well steel,i did this all in daylite. a period from feb 1st till the 22nd with an 8"sct,one gets much better views that way an much better contrast.

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azure1961p
Postmaster
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Reged: 01/17/09

Loc: USA
Re: Mercury feb 2013 drawings new [Re: ROBERT FREE]
      #5699336 - 02/25/13 06:37 AM

Very nice accounts Mr. Free! I enjoyed the progression through successive observation.

Pete


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ROBERT FREE
sage
*****

Reged: 03/20/11

Loc: SARASOTA,FL
Re: Mercury feb 2013 drawings new [Re: azure1961p]
      #5699436 - 02/25/13 08:58 AM

thank you pete,the last few days the weather didnt co- operate as i tried to see the elusive skinny crescent but the magnitude drops dramatically an is at the limit of viewing in daylite anyway an almost impossible but i have seen it maybe 3-4 times in 40 years .venus so much easier but it wont be till mid may for that.

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SteelStar
super member


Reged: 11/08/09

Loc: Oklahoma
Re: Mercury feb 2013 drawings new [Re: ROBERT FREE]
      #5699444 - 02/25/13 09:04 AM

Quote:

well steel,i did this all in daylite. a period from feb 1st till the 22nd with an 8"sct,one gets much better views that way an much better contrast.




Yes, I have seen it in daylight before but just didn't this time because of weather and being lazy. I am planning on catching Mercury earlier in the day come late May/June when it will be in a nice conjunction with Jupiter and Venus. Should be easy to find Venus first and go from there.

Again, nice observations.


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ericj
professor emeritus


Reged: 02/17/05

Re: Mercury feb 2013 drawings new [Re: ROBERT FREE]
      #5725800 - 03/11/13 12:56 PM

Nicely done sketches and observations of Mercury Robert. Shows how quickly Mercury goes through its phases.

Best,

Eric Jamison


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