| Luis Balanzino | ||||
| Star:
Tau (93 Virginis)
Date & Time: Wed May 10, 2002, 23h to 01h UT Seeing: 6 <1-10 Seeing Scale (10 best)> Transparency: 7 <1-10 Seeing Scale (10 best)> Location of site: Göteborg, Sweden 57°43' N, 11°58' E Site classification: Suburban area with moderate light pollution Sky darkness: 4 <Limiting magnitude> Temperature: 15º C Moon: None Telescope: Russian TAL-1 equatorial reflector 110mm f/7.3 Eyepieces: 25mm and 12.5mm TAL Super Plossl, 15mm TAL Kellner, 3x TAL Barlow Magnification: 32x, 54x, 97x, 161x, 193x |
A wide double
but very fine color contrast, the primary is yellow, the companion bluish
to me. Very easy split at only 32x.
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| Kevin Muenzler | ||||
| Star:
Tau (93 Virginis)
Date & Time: 13 May 2002, 04:00 UTC Seeing: 5 <1-10 Seeing Scale (10 best)> Transparency: 9 <1-10 Seeing Scale (10 best)> Location: Between Floresville and San Antonio, TX. 29º14'32"N 98º14'56"W Site classification: Rural Elevation 457 feet according to GPS. Conditions: Very Clear, no haze or clouds but high humidity low 70's F. Skies dark to the East and South with a bit of light pollution to the NNE from San Antonio. Sky darkness: <Limiting magnitude> Telescope: Meade LX-90 8" f/10 SCT LXD-55 6" f/5 Schmidt-Newt Eyepieces: Meade 26mm Super Plössl, Meade 13.8mm SWA, Meade 8.8mm UWA Magnification: 77x, 145x, 277x |
Very easy to
separate at 145x. Nice bright blue primary and a dimmer blue companion.
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| Mary Flanagan | ||||
| Star:
Tau (93 Virginis)
Date & Time: 20 May 2002 22:01 CDT Seeing: 5 <1-10 Seeing Scale (10 best)> Transparency: 7 <1-10 Seeing Scale (10 best)> Location of site: Apple Valley MN, USA 93d 14m 25s W; 44d 45m 17s N Site classification: Suburban Sky darkness: 4.5 <Limiting magnitude> Telescope: 12.5" f/5 Dobsonian Eyepieces: 32mm Plossl Magnification: 50x |
Very wide pair
with a notable difference in magnitude. The primary appeared a
pale blue with a slight greenish tinge. No color noted in the faint little secondary. Ambience: Last night was the first time in a week that the wind died down enough for me to catch a few stars, although I still had to run into the house a few times just to warm up. Transparency wasn't too bad, although the seeing was nothing to shout about. Good thing the Moon lets you look at doubles. I have the list sorted and in the DSC user database by separation, so these six were a pretty easy batch. Should have been seven, but STF 1636 wasn't where I thought it was supposed to be. As it turned out, there was no cosmic disaster . . . just a typo on my part when I first transcribed the list. Now fixed, so it should be pretty easy pickings next time. I was freezing, and came
in before midnight. Note to the weather gods: This is May. This is the
Northern Hemisphere. It's supposed to be warm now. _Do_ something!
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| Ilario Melandri | ||||
| Star:
Tau (93 Virginis)
Date & Time: 29th May 2002 Seeing: 5 <1-10 Seeing Scale (10 best)> Transparency: 8 <1-10 Seeing Scale (10 best)> Location of site: S. Romualdo, Italy Site classification: Suburban garden Sky darkness: 4.5 <Limiting magnitude> Telescope: 6" f/15 refractor Temperature: 16ºC Eyepieces: Plössl 16mm, Ortho 9mm Magnification: 140x, 250x
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| William L. Schart | ||||
| Star:
Tau (93 Virginis)
Date & Time: 6/11/02, 11:00 pm CDT to midnight Seeing: 8 <1-10 Seeing Scale (10 best)> Transparency: <1-10 Seeing Scale (10 best)> Location of site: Killeen, TX, USA Site classification: Suburban Conditions: Warm and humid Sky darkness: 3.5 <Limiting magnitude> Telescope: Celestar 8"SCT Eyepieces: 25mm, 17mm, 12.5mm, 10mm Magnification: . |
A very wide
pair with quite a lot of magnitude difference. The primary is brighrt yellow
but the secondary is hard to tell. Sometimes the primary seemed to me to
have a tinge of green. Immedaitely to the NW is a triangular asterism.
I measured the separation at 82.5” and the separation at 290.3 (ave 5 meas).
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