| John M. Ryan | ||||
| Star:
Struve 3107
Date & Time: Tuesday July 2, 2002 10:00UTC Seeing: 6-7 <1-10 Seeing Scale (10 best)> Transparency: <1-10, 10 best> Location of site: Barreras, Salamanca, Spain. Site classification: Rural, Suburban Sky darkness: 4+ <Limiting magnitude> Conditions: No moon , clear, medium wind with temp. about 12º C. Haze making transparency marginal Telescope: Meade 7" Mak-Cas mounted on a Losmandy GM8 Eyepieces: 20mm plossel, 13mm plossel,10mm and 6.4 plossels Magnification: 134X, 203X, 264X and 413X Harshaw Scale: 2 <1-5; 1 best> |
I had to go
up to 413X to split this double. Both components are equal but very dim
with the haze. The split would come and go but it was definitely split.
I marvel at the optics of the Meade 7" mak cas, great. This is a close
double but shows that when the delta mag is near zero the split is much
easier. Both white, rating 2.
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| William L. Schart | ||||
| Star:
Struve 3107
Date & Time: July 3-4, 2002, 11:30 pm CDT to 1230 PM CDT Seeing: 7 <1-10 Seeing Scale (10 best)> Transparency: <1-10, 10 best> Location of site: Killeen, TX, USA Site classification: Suburban Sky darkness: 3.5 <Limiting magnitude> Telescope: Celestar 8" SCT Eyepieces: 25mm, 17mm, 10mm eyepieces Magnification: |
Another good
test, equal magnitude (9.3), faint and close
(1.4"). I had to exam several possible candidates in the same FOV before I identified this. There was little if any evidence of duplicity at low power, at mid power I got elongation, and I was able to split this, if barely, at high power. Overall this pair appeared yellow. It is part of a 4 star asterism, a triangle with an appendage just off the corner formed by this pair.
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