75 Orion 

Eddy O'Connor
Star: 75 Orion 
Date & Time: Dec 5th 2000. 10 -11p.m local; UT +11 
Seeing: 5-6 <1-10 Seeing Scale (10 best)>
Transparency: 6/10 
Temperature: 18ºC 
Other Conditions: Calm. Moon 9 days old 
Location of Site: Terara, New South Wales 
Australia,  S34.52, W150.38 degrees. 
Site Classification: Suburban 
Sky darkness: North 4; South 4.5 <Limiting magnitude> 
Binoculars: 7X35 Tento. 25X100 Somet. 
(Occasional 16" Dob comparisons ) 
HS: 2 
HS= Harshaw Scale1-5 (1 best) 
This double lies near the border between Orion, Monoceros and Gemini. Is it worth a visit. Yes. The White primary is pleasantly contrasted with the fainter, mag. 8.5 companion lying North in the field. Comments: A rich field, even in deteriorating seeing. 
 
 
 

 


 
Thad Robosson
Star: 75 Orion
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. 
 
Either I was on wrong star, or I didn't get it.  Was brightest in area, so I was reasonably sure I was on it.  Didn't split this one though. 
 
 
 
 

 

 
 
Carol Locomiak
Star:  75 Orionis
Date & Time: UT Feb 14th, 01:00 till 04:00
Seeing: 7 <1-10 Seeing Scale (10 best)>
Transparency: Very good 8/10 
Temperature: 20°F 
Other Conditions: Slight breeze; no Moon
Location of Site: Tomahawk WI, USA
45ºN 89ºW
Site Classification:  Rural
Sky darkness: 8/10
Binoculars: Oberwerk 22x100
 
Sep 117" // mags 5.4 and 8.5 Both appeared white.
 


Paolo Morini

Star:75 Ori
Date & Time: Jan 10, 2006, 21:15 UTC 
Seeing: --
Location of site: home, Ravenna, Italy
Site classification: Urban backyard 
Sky darkness: 3.5 <Limiting magnitude> 
Conditions:--
Temperature: 2° C
Binocular: Miyauchi 30x77

Moon between first quarter and full, strong brigthness, anyway the B component seems much fainter than m 8.5 stated.

Visible only with adveted vision