Struve 1820

 
Steve Bodin 
Star: Struve 1820
Date & Time: 17 Mar 2003 11 pm to midnight
Seeing: 2-3 <1-10 Seeing Scale (10 best)>. 
Transparency: fair
Location of site: Silverdale WA, USA
47N 123W
Site classification: suburb-rural
Conditions: temp 40F, some wind
Sky darkness: 4 (full moon) <Limiting magnitude> 
Telescope: Celestron C8
Eyepieces: not used
Additional: DX-8263SL video camera at f3.8 and 2x
Magnification: app. 666x 2x and 111x f3.8		 Faint and close star. Poor resolution due to the bad air. Color of primary maybe a tint of orange and the secondary more towards the blue, but difficult to tell for sure. Measurement: 2.85 sec at 121.9 deg PA.






 

 
Michael Sutherland
Star: Struve 1820
Date & Time: 29 March 2003, 10:15 pm pst
Seeing:  7 <1-10 Seeing Scale (10 best)>. 
Transparency:  average 
Location of site:  Beaverton, OR, USA
45d 29'N, 122d 48' W
Site classification: suburban
Moon: 
Temperature: 56F, dry
Sky darkness: 4 <Limiting magnitude> 
Telescope: Takahashi 102mm, Perspicillum
Eyepieces: 5mm Tak LE, 4mm Tak ortho
Magnification: 164x, 205x		 Star-hopped from Alcor/Mizar. Quite faint and pretty challenging. The 2.6" separation was quite distinct but the faintness of the pair made them fade in and out. I think my eye's were getting tired too.
 
 
 
 
 
 
 
 
 
 
 
 

 

 
William L. Schart 
Star: Struve 1820
Date & Time: 8th, April, 2003
Seeing: 7 <1-10 Seeing Scale (10 best)>. 
Transparency: 
Location of site: Texas, USA
Site classification: Suburban
Sky darkness:  <Limiting magnitude> 
Telescope: C8
Eyepieces: 
Magnification: 		 Not quite as tight as the last pair, but a bit dimmer. I got a possible elongation at low power, and a definate split at mid power. I got a tinge of blue to the pair.
 
 
 
 
 
 

 

 
William L. Schart 
Star: Struve 1820
Date & Time: 8th, April, 2003
Seeing: 7 <1-10 Seeing Scale (10 best)>. 
Transparency: 
Location of site: Texas, USA
Site classification: Suburban
Sky darkness:  <Limiting magnitude> 
Telescope: C8
Eyepieces: 
Magnification: 		 Not quite as tight as the last pair, but a bit dimmer. I got a possible elongation at low power, and a definate split at mid power. I got a tinge of blue to the pair.
 

 
 
 

 

 
 

 
 
 
Guy Yeates
Star: Struve 1820
Date & Time: 22 March 2003, 22:30 GMT
Seeing: 6 <1-10 Seeing Scale (10 best)>. 
Transparency: poor
Location of site: Didcot, Oxfordshire, UK
51d 36'N, 1d 73' W
Site classification: Urban
Conditions: temp 3degC (35F), dry 
Sky darkness: 3 <Limiting magnitude> 
Telescope: Meade ETX-125 (125mm, f15)
Eyepieces: 40mm Televue Plossl, 10mm Radian
Additional: x2 barlow(celestron ultima)
Magnification: x48,x95,x191		 Not an easy one to star hop to; I even fell off my seat trying to locate this one ! Split managed at x190 but not clearly. Both stars the same colour but faint against the background sky glow. My telescopic magnitude limit for stars is probably between 9 and 9.5 thanks to a local
sports club's car park, railway station, power station, football pitch, streetlights...and so the list goes on !
   

   
 
 
 
 
 
 
 
 
 
 
 
 
 

 

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