27 + 28 Tauri 

Eddy O'Connor
Star: 27 + 28 Tauri 
Date & Time: November 22nd  2000. 
10.30 -11p.m local; UT +11 
Seeing: 5-6 <1-10 Seeing Scale (10 best)> 
Transparency: 7/10, (Northern sky to 
mag. 4.5; Southern to 5.5) 
Temperature: 18ºC 
Other Conditions: Still; high humidity after rain. 
No Moon 
Location of Site: Terara, New South Wales 
Australia,  S34.52, W150.38 degrees. 
Site Classification: Suburban 
Sky darkness:  <Limiting magnitude> 
Binoculars: 7X35 Tento. 25X100 Somet 
HS: 3 
HS= Harshaw Scale1-5 (1 best) 
 
Atlas.  If we view the handle as a small 'Dipper' this star lies at the end of the handle. The wide mag 5 companion 28 or BU or Pleione can be spotted with the unaided eye and is easy with any optical aid. 

In the 25X100 the stars appear as Yellow and Whitish. Struve discovered a close companion to 27 in 1827 which Yale Cat. gives as .6" sep but I have no other  details. 
 
 

 
 

 
 
Jim Jones
Star: 27 + 28 Tauri 
Date & Time: 0935 UTC, 11/28/00  
Seeing: 6 <1-10 Seeing Scale (10 best)> 
Location of site: Lake Oswego, Oregon  
Site classification: Suburban 
Sky darkness: 4 <Limiting magnitude> 
Temp:  cold 
Binocular: 7x50 Nikon (hand held) 
 
 
The double 27 + BU  (or 27+28 Tau) is located on the eastern edge of the Pleiades about 25' east of Alcyone.  The Pleiades is truely one of the great targets for binoculars.  It is a very wide double and is easily visible. Tonight I could easily see the 8 brightest stars of the Pleiades but anything else  was a struggle because of a high haze and the Portland light bubble. 
 
primary....blue-white tending to white 
companion...yellow-white 
 
 

 

 
 

 
 
Glen Chapman
Star: 27 + 28 Tauri 
Date & Time: 29/12/00 21.35 UT +10h 
Seeing: 6, improving <1-10 Seeing Scale (10 best)> 
Location of site: Sydney, Australia 
Site classification: Suburban 
Sky darkness: 4.69 improving to 5.37 <Limiting magnitude> 
Binocular: 7 x 50 binocs  
 
Easy split in a very attractive field. Primary Blue! Secondary seen as white to pale yellow. 
 

 

 

 
 

 
 
Bob Hogeveen
Star: 27 + 28 Tauri 
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)  
  
 
This pair is actually 27 + 28 Tau, or Atlas and Pleione (as has been said before). I got the feeling that the PA should be just the other way around. The table says : 180, but isn't it 0 (or checking Skymap : 2)? 
 

 

 
 
Thad Robosson
Star: 27 + 28 Tauri 
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. 
 
 
Ah, a mystery.  Sep. seems correct as compared with previous
obs, but PA seems wrong.  Should be near 0°, not 180°.  Given that there is
no other star of this mag around 180°, I assume either the comp. is quite
variable, or that the measure was measured in wrong quad.  Is BU 28 Tau?

 
 
 
 
 

  

Paolo Morini

Star:27+BU 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

Very easy split in the magnificient Pleiades background