Struve 751

Addendum 2000-2001

 
Bob Hogeveen
Star: Struve 751
Date & Time: December 18, 2000, 23:00 UTC 
Seeing: -- <1-10 Seeing Scale (10 best)>.
Location of site: Annen, The Netherlands (53 N, 6 E)
Site classification: Village-backyard 
Sky darkness: 4.3 <Limiting magnitude>
Conditions: Lot of moisture in the air
Temperature: 0° C
Telescope: Celestron CG-11 
Magnification: -- 
 
 
Star: Struve 751
Date & Time: December 23, 2000       23:00 UTC 
Seeing: -- <1-10 Seeing Scale (10 best)>.
Location of site: Annen, The Netherlands (53 N, 6 E)
Site classification: Village-backyard 
Sky darkness: 4 <Limiting magnitude>
Conditions: ---
Temperature: -5° C
Telescope: 80mm Swarovski spotting scope 
Magnification: 20x 		 A nice and easy double in the rich field around Epsilon Ori. Best with lowest power and largest field. 

Because of the presence of Epsilon Ori it is very easy to locate, and because it is also easily visible with small scopes Struve 751 is a perfect target for beginners. 
Rating : 2 
 
 
 
 
 
 
 
 

This double is a good target for small scopes. It is situated in the same FOV with Epsilon Ori, therefore very easy to locate. I was able to split this pair nicely with 20x. A very attractive sight in the rich starfield around Epsilon Ori. I didn't detect any color, just two almost equally bright little white stars standing very close to eachother. 
Rating : 2 
 

 

 
Paolo Morini
Star: Struve 751  
Date & Time: 23, 2000, 23:50 UTC 
Seeing: 7 <1-10 Seeing Scale (10 best)> 
Location of site: My home in Ravenna, Italy   
Site classification: Urban 
Sky darkness: 3.5 <Limiting magnitude>
Conditions: steady and foggy air 
Temperature: 0° C 
Instrument: Vixen 20x100 Binoculars
Magnification: 20x		 The star is very easy to find near Epsilon Ori. The air was thick, so I saw the two components from time to time, but I take a scketch of the PA and I checked out, after the observation, I was right. 
So I see this double, but I can imagine the warm comment of my friends if I'd say them "Hey boys, have a look to this double star!" :-) 

Ambience: 
to celebrate school holydays I watched the TV with my daughter Silvia(8 years old) till midnight, I took out an old B&W science-fiction film, "The day the Earth Stood Still" (1951). A very special film for me, I saw it during the 25-hour moon-landing TV marathon on 20-21 July 1969 - I was 12 years old. 

Silvia enjoyed a lot this film, but I was very tied and I fall asleep 30-40 times during the film.
   
After Silvia went bed I feel to make something astronomical, as the weather bullettin states that this is the last clear night for some time - Struve 751 was right for my binoculars - and this is the end of the story. 
 

 
Eddy O'Connor
Star: Struve 751
Date & Time: 10 -11p.m local; UT +11.
Monday, 01/01/01
Seeing: 7 <1-10 Seeing Scale (10 best)>
Transparency: 7/10
Temperature: 18º
Other Conditions: Calm. Moon 5 days old
Location of Site: Terara, New South Wales 
Australia,  S34.52, W150.38 degrees. 
Site Classification: Suburban 
Sky darkness: Northern sky: 5; Southern: 5.5
Binoculars: 25X100mm Somet Binoculars. 7X35mm  Tento
HS: 2
HS= Harshaw Scale1-5 (1 best) 		 This close binocular double lies close to Epsilon Ori. I failed to split with the 7X35 binox but I could just see both faint components in the 25X100. No colours were detected and I feel it is a good test for large binoculars and steady seeing