| Richard Harshaw | ||||
| Star:
Struve 2380
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 Magnification: 112x |
Position: 1843+4455
Magnitudes: 7.2 (G5 IV), 9.0 (F2 V) Sep/PA's: 26= / 9- Year of this measurement: 1989 Distance (light years): 403 Luminosity (in suns): 20 Colors noted: Y, bW Comments: A nice
orange star lies 10' at pa 290. Not much to get excited about.
However, it is neat to compare a sub-giant G5 to a m.s. F2 and note the
luminosity difference.
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| William Schart | ||||
| Star:
Struve 2380
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 |
Another wide pair, easily
split at low power. Both appeared white to me.
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| John M. Ryan | ||||
| Star:
Struve 2380
Date & Time: 19 July 2001 ( 21:15 UT ). Seeing: 6+ <1-10 Seeing Scale (10 best)>. Location of site: Barreras, Salamanca, Spain. Site classification: Rural,Suburban. Conditions: no moon, fairly dry but with gusts of wind. Sky darkness: 5+, some light due to street lights in the village. <Limiting magnitude> Telescope: Meade 7" Mak Cas mounted on a Losmandy GM8. Eyepieces: 20mm plossl Magnification: 134x Harshaw Scale: 3 <1-5; 1 best> |
Another fairly wide double with easy split at 134X. Primary White, Secondayr Whitish Blue. | |||
| Luis Argüelles | ||||
| Star:
Struve 2380
Date & Time: 21st, July, 2001. 21:00 – 23:05UT Seeing: 7-8 <1-10 Seeing Scale (10 best)> Transparency: 3-4 <0:worst -10:best > Location of site: Quintueles, Gijón, Spain. 43º 32N, 5º 55W. Altitude: 20 m. Site classification: Suburban Sky darkness: 3.0 - 3.5 <Limiting magnitude> Temperature: about 15º C Conditions: A lot of haze and moisture. Seeing is rather good, but haze actuates like a light diffusor and that makes difficult observe stars fainter that 10 magnitude. Humidity: about 90% Telescope: Vixen 102 4" achromatic refractor Eyepieces: 35, 10 and 5mm Baader-Planetarium Eudiascopics Magnification: 100x Harschaw Scale: 5 <From 1 to 5. 1 = Great, 5 = poor interest> |
No problems to split this double at 100x, showing a clear difference of magnitude. Not a special double and I rate it with a HS of 5. The location of the eyepiece, by the way, at only 40 cms over the floor (that is, about 15 inches) makes the observation of this star at this time a "hating" experience! | |||
| Philippe Dejocas | ||||
| Star:
Struve 2380
Date & Time: July 28 2001 Seeing: 6.5 <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: 40x |
Was the last entry that
night. An Albireo family member, which is strange considering the spectrum
of the cpn, an F, which should come across more whitish than bluish. But,
hey, I'm not fussy. Resolved at 40x
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| Jim Jones | ||||
| Star:
Struve 2380
Date & Time: 08/10/01 0630 UTC Seeing: 6 <1-10 Seeing Scale (10 best)>. Location of site: Lake Oswego, Oregon Site classification: Suburban Sky darkness: 4.3 <Limiting magnitude> Sky: Full moon plus 6 days in Taurus Telescope: 8 inch LX50 SCT Eyepieces: 18mm Radian Magnification: 112x |
Camera: B&W Connectix
We Cam
Primary-yellow, Companion-Blue Est PA without inst...005d Sep measured.....26.00" Standard Deviation.....0.15" Sep measured as the average of 25 images using AIP4WIN software. Very nice double set in a field of dimmer stars. |
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