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Observing Session 15/08/2006


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Finally managed to get a clear night & a free evening.

Full report to follow but my session tonight started by clooimating my scope by star testing. It was a real pain but worth it in the end :laugh:

I observed and measured the following doubles

STF 1825

STF 2078 (a very good triple- definately worth a look)

STF2082

STF1984

and last but not least Pi Aquila this was a pair I had a score to settle with.

I hope some other got to view tonight.

Cheers

Ian

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Here is the full report.

The evening was clear but I had noted on the metoffice that a weather front was heading my way. The scope was put out to cool at about 8.00pm

I started the night speniding 30 minutes collimating the scope using Polaris as the test star. It was a real pain but worth it in the end. I had a quick look at STF1825 in Bootes before starting my observing plan. I usually take about 30 minutes per pair as I have to find the pair, draw the pair and the associate FOV and finally measure them. I cannot see the point in just noting PA & Sep as they stars are good to look at.

I finished the night with Zeta Herc and Pi Aquila. Zeta was elongated and Peanut shaped. Pi Aquila was clear split at x267 and split/elongated at x133. I had a score to settle with Pi Aquila as last year it was never a very good split and I wanted to really get a good view. Last night mission accomplished.

I was about to move onto 61 Cygnus when the clouds rolled in.

I recommend STF 2078. It's very nice & easy triple.

Target. STF 2078 AC

Date: 15/08/06

Time: 24:40 UT

Seeing: 2-3/5

Transparency: 3/5

Site: London/Suburban - Lat: 51:27:54N (51.4651) Lon: 0:16:36W (-0.2767)

Site classification: Suburban

ZLM: Mag4

Sky Condition: Thin High haze

Moon: Not risen

Telescope: Orion Optics 200mm F6

Eyepiece: 9mm Ortho

Magnification: x133

Barlow: No

Comments: Makes a very pleasant triple with the AB component

Primary Colour: White

Secondary Colour: White

General Notes: Wide easy pair in 9mm.

Measurements: PA: 194 Sep: 88”

(3x Barlow & 12.5mm MG. scale constant 5.3” per division)

---------------------------------------------------------------------------------------------------------------------------------

Target. STF 2078 AB

Date: 15/08/06

Time: 22:40 UT

Seeing: 3/5

Transparency: 3/5

Site: London/Suburban - Lat: 51:27:54N (51.4651) Lon: 0:16:36W (-0.2767)

Site classification: Suburban

ZLM: Mag 4

Sky Condition: Thin High haze

Moon: Not Risen

Telescope: Orion Optics 200mm F6

Eyepiece: 9mm Ortho

Magnification: x133

Barlow: No

Comments: No noticeable colour contrast.

Primary Colour: White

Secondary Colour: White

General Notes: Easily split in 9mm

Measurements: PA: 105 Sep: 3.2”

(3x Barlow & 12.5mm MG. scale constant 5.3” per division)

Target. STF 2082

Date: 15/08/06

Time: 22.25 UT

Seeing: 3/5

Transparency: 3/5

Site: London/Suburban - Lat: 51:27:54N (51.4651) Lon: 0:16:36W (-0.2767)

Site classification: Suburban

ZLM: Mag 4

Sky Condition: Thin High haze

Moon: Not Risen

Telescope: Orion Optics 200mm F6

Eyepiece: 18mm Ortho

Magnification: x67

Barlow: No

Comments: Rich Field

Primary Colour: Orange

Secondary Colour: Non noted

General Notes: When using the Barlow and Microguide the secondary had a blue tinge but appeared colourless in the 18mm.

Measurements: PA: 94 Sep: 26.5”

(3x Barlow & 12.5mm MG. scale constant 5.3” per division)

Target. STF 1984

Date: 15/08/06

Time: 23:00 UT

Seeing: 3/5

Transparency: 3/5

Site: London/Suburban - Lat: 51:27:54N (51.4651) Lon: 0:16:36W (-0.2767)

Site classification: Suburban

ZLM: Mag 4

Sky Condition: Thin High haze

Moon: Not Risen

Telescope: Orion Optics 200mm F6

Eyepiece: 9mm Ortho

Magnification: x133

Barlow: No

Comments:None

Primary Colour: White

Secondary Colour: Pale Orange

General Notes: Easy split in 9mm and a good colour contrast.

Measurements: PA: 275 Sep: 5.8”

(3x Barlow & 12.5mm MG. scale constant 5.3” per division)

Cheers

Ian

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