| Richard Harshaw | ||||
| Star:
Struve 2491
Date & Time: 6 July, 2001, 03:00 to 04:55, UT Seeing: 8 <1-10 Seeing Scale (10 best)>. Transparency: 6-7/10 ,variable, due to high hazy clouds Location of site: Northern Kansas City, Missouri. 39º 15' N, 94º 30' W, 980 ft above Mean Sea Level Site classification: Suburban Sky darkness: <Limiting magnitude> Telescope: Celestron C-11 Eyepieces: 25mm Plossl, 9mm Lanthanum Magnification: 112x, 311x |
Position: 1916+2817
Magnitudes: 8.24 (A2m), 9.43 Sep/PA's: 1.3+ / 227+ Year of this measurement: 1996 Distance (light years): 860 Luminosity (in suns): 38 Eyepiece and magnification: 25mm Plossl (112x), 9mm Lanthanum (311x) Colors noted: W, pO Comments: Observed
at 112x, not split. At 311x, good, clean split. Nice field.
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| William Schart | ||||
| Star:
Struve 2491
Date & Time: July/9/01 0500 to 0635 UT Seeing: 7 <1-10 Seeing Scale (10 best)>. Location of site: Killeen, TX, USA Site classification: Suburban Sky darkness: 4 <Limiting magnitude> Temperature: In the 80's F (30's C). Slight breeze. Telescope: Celestar 8" SCT Eyepieces: 25mm, 17mm, 10mm Magnification: 80x, 120x, 200x |
I am only going to claim
an elongation on this, even at high power.
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| Bob Hogeveen | ||||
| Star:
Struve 2491
Date & Time: 23 July, 2001, 00:00 Seeing: 8 <1-10 Seeing Scale (10 best)>. Location of site: Annen, The Netherlands - 53N, 6E Site classification: Village backyard Sky darkness: 5 <Limiting magnitude> Telescope: Celestron C-11 Eyepieces: Ultima 30mm , TV plossl 20mm, LV 15mm, 7mm Magnification: 187x, 400x Harshaw Scale: 3 <1-5; 1 best> |
The stars of this double
were a bit to faint (magn. 8.6 - 9.7) for a good view with 400x. Visible
though, and easily separated, but not a nice view.
187x gave a much better view. Better star-images and still a good separation, although very close of course (1.3"). No color noted. |
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| Philippe Dejocas | ||||
| Star:
Struve 2491
Date & Time: August 8 2001 Seeing: 7.5 <1-10 Seeing Scale (10 best)> Location of site: Canada Site classification: Suburban Conditions: Clean skies and warm temperatures. Sky darkness: 4.5 <Limiting magnitude> Telescope: 6inch/f5 newt Magnification: 225x
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"A hard hugger even at 225x,
but got it too" Then I did a quick check on M56, on my way to STF 2483;
this globular cluster really tries to pass itself of as a comet. This one
I can understand being seen as one at first.
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| Otto Piechowski | ||||
| Star:
Struve 2491
Date & Time: 9 PM EDT Saturday, August 18 to 2 AM, Sunday, August 19 Seeing: 8 <1-10 Seeing Scale (10 best)>. Location of site: Lexington, KY, USA Site classification: Urban area Sky darkness: 4.5 (Zenith Unaided) <Limiting magnitude> Conditions: Clear, a bit of haze, still, c. 65 degrees F, very slight breeze Telescope: 150 mm Maksutov Cassegrain (Intes standard MK 67) Eyepieces: 30 mm ?, 16 mm Rini, 11.4 mm Rini, 7 mm and 4 mm celestron orthos, 5 mm University Optics ortho. Magnification: 158x, 360x |
Barely resolved at 360X
with the UO 5 mm ortho and barely resolved at 158X with the 11.4mm Rini.
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