Alcione (Eta Tauri) 

Bill Reinehr
Star: Alcione (Eta Tauri) 
Date & Time: November 15, 2000, 2:05 UTC  
Seeing: 8 <1-10 Seeing Scale (10 best)> 
Location of site: Pflugerville, Texas, USA  (30 degrees N.) 
Site classification: Suburban  
Sky darkness: -- <Limiting magnitude>  
Conditions:  Clear  - Better than average. 
Temperature: 44° F. 
Binocular: Orion 8x42 (handheld) & Orion 11x70 on Bogen (Manfrotto) Fluid Head and Tripod. 
 

 
 

Part of M45 (the Pleiades). No split could be seen hand holding the 8x42s. Easily spilt when tripod used. The entire cluster is perfect in the 4.5° FOV of the 11x70 Binos - far better than any photograph. 
 

 

 

 
 

 
 
Eddy O'Connor
Star: Alcione (Eta 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) 
 
Alcyone. Allen describes this, the brightest member of the group as a Greenish-yellow star. These eyes see Whitish yellow in the 25X100 . The wide 8.8 mag companion appears Light blue and there is a rich field. 

After eye adaptation two equal faint stars appeared as a close double to the north of the companion star but under a two-inch mask they disappeared. 
 

 
 

 
 
Glen Chapman
Star: Alcione (Eta Tauri) 
Date & Time: 29/12/00 21.40 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  
 
Very difficult to pick up secondary using aveted vision. Possible target star sighted at about PA 350. Which is in the correct area. 
 
Eta is positoned in a very attractive field displaying the vivid blue associated with such a young cluster. Slow moving 3rd mag meteor seen moving through cluster while writing up notes. 
 

 

 

 
 

 
 
Bob Hogeveen
Star: Alcione (Eta 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)  
  
 
I don't have to tell you of this beautiful field. With the bino (10x50) only the two brightest stars were visible, with the Swarovski at 20x all four stars came forward. This is a rating 1 for my Swarovski. 
 
It is obvious immediately that the mentioned mag's of the four stars in the Bino-table are not right. A and B are bright, D and D much fainter. There mag's should be (Skymap info) : A=2.85 B=6.3 C=8.3 D=8.5. 
Their positions look a bit like this : 
 
          . 
           . 
         * 
     * 

 

 
 
Thad Robosson
Star: Alcione (Eta 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. 
 
 
Barely saw all 3 with averted.  Est PA's of... 280°(closest), 290°(Furthest), and 283°(middle).  I was suprised that I could go this faint with binos in town....