Theta1 + Theta2 (77+78) Tauri

Jim Jones
Star: Theta1 + Theta2 in Taurus 
Date & Time: 05:00 UTC, 11/18/00
Seeing: 6 <1-10 Seeing Scale (10 best)>
Location of site: Lake Oswego, Oregon 
Site classification: Suburban
Sky darkness: 3.5 <Limiting magnitude> 
Temp: 37ºF 
Binocular: 7x50 Nikon (hand held)

 

Est PA 345d 
Primary ...orange 
Companion...blue-white 

Equal magnitudes set at right angle to a line drawn between Aldebaran and Gamma Tau.  Very pretty double which is a true member of the open cluster Hyades. 

Only Aldebaran was visible to the naked eye. Looking through the binoculars instantly revealed the double surrounded by the bright and beautiful field of Hyades. 

Both the double and the open cluster are perfect for viewing through binoculars. 
 


 
Bob Hogeveen
Star: Theta1 + Theta2 in Taurus 
Date & Time: 3rd, January, 2001
Seeing: --- <1-10 Seeing Scale (10 best)>
Location of site: Annen, The Netherlands
(53 N, 6 E)
Site classification: Village-backyard
Sky darkness: 3-4 <Limiting magnitude> 
Conditions:  halo surrounding half-Moon 
Temperature: -- 
Binocular: Swift Supreme 10x50 (on tripod, some help from a Swarovsky 20x spotting scope) 
 
Another wonderful field for bino's and small scope, the Hyades. 

This pair is, of course, very easy for bino's, being bright and wide. Theta-1 shows a nice dark-yellow colour, as well with Bino as with spottingscope. Theta-2 also looked a bit yellow, say light-yellow. 
 


 
Thad Robosson
Star: Theta1 + Theta2 in Taurus 
Date & Time: 1-17-01, 3:30 - 5:30 UT
Seeing: 4~5 <1-10 Seeing Scale (10 best)>
Weather: clear, but quite chilly at 45°F
(Hey, it's cold to us....)
Location of Site: Phoenix, AZ
112 08.029w, 33 32.674n
Site Classification: Suburban 
Sky darkness: -- <Limiting magnitude> 
Transparency: 3~4/10
Binoculars: 10x50 on homemade bino mount. 
 
Same field as Aldeberan, which is a ruddy yellow/orange tonite.
Comp. is just slighty fainter and slightly yellow.  Main comp. is a bluish white.
 
 
 

 

 
 
Bob Hogeveen
Star: Theta (77+78) Tauri
Date & Time: November 5, 2001  
Seeing: -- <1-10 Seeing Scale (10 best)>
Transparancy: 8 <1-10 Seeing Scale (10 best)> 
Location of site: Annen, The Netherlands
53N, 6E
Site classification: Village backyard  
Sky darkness: ~ 4 <Limiting magnitude>
Telescope: Unaided eye, Leica Trinovid 10x42
Magnification: 1x, 10x
Harshaw Scale: 3 <1-5; 1 best> 
 
With a very bright Moon still in the eastern part of Taurus the sky around the Hyades was washed out. But the clearings between the racing clouds were really clear and the many bright stars of this cluster stood out very well against the sky-background. 
   
Observing through the glass of the doors of our gardenroom I could hear the calls of flocks of Bean goose (Anser fabalis) flying by. This time of year there is always a lot of goose-business going on in our sky. Flocks on their way to winterquarters and flocks flying to and fro their sleepingquarters and their feedinggrounds, of different species of geese can be seen (and heard!).
   
The Hyades fit into the field of view of my bino nicely, it's V-shape representing the invisible flocks of geese. The bright and wide pair 77 -78 Tau stands out beautifully. The pair is surrounded by the somewhat circle-like group of fainter stars, among which are 70, 71, 75, 80, 81 and 85 Tau. Thus it forms the most "crowded" and most beautiful part
of this large and loose cluster.
   
77 (Theta-1) shows a nice yellow color while 78 (Theta-2) is blue-white. After having observed with the bino I noticed how easy this double was visible without the aid of an optical instrument (except for a pair of glasses). The pair was split easily and concentrating on it they showed up bright and clear, despite of the washed out sky and the thermopane in between.     
    
  

Paolo Morini

Star:Theta1 + Theta2 Tau
Date & Time: Nov 19, 2000, 21:40 UTC 
Seeing: --
Location of site: home, Ravenna, Italy
Site classification: Urban backyard 
Sky darkness: 4<Limiting magnitude> 
Conditions:--
Temperature: 8° C
Binocular: Canon IS 15x45

Easy to find and split.

It's part of an asterism pubished in S&T and caled "The house in the Hyades"