BU 19 in Canis Majoris

 
Eddy O’Connor
Star: BU 19 in Canis Majoris
Date & Time: January 7th, 2001
10 p.m local; UT +10
Seeing: 5 <1-10 Seeing Scale (10 best)>
Transparency: 8 <1-10 Seeing Scale (10 best)>
Temperature: 20ºC
Location of site: Terara, New South Wales, Australia
150º.38 E, 34º.52 S
Site classification: Suburban-rural
Sky darkness:  No Moon. 
Telescope: 8" Newt. F9
Eyepieces: 25mm K, 12.5 mm Ortho
Magnification: 73x, 146x
Harshaw Scale: 3 <1-5; 1 best> 		 With Sirius as my starting point it was a short hop north to find this dim double. 

Comments: Low power failed to yield any results from this Bluish/white star and at high power the split was barely noticed. Some instability in the atmosphere early in the viewing session. This is a rich field with another bright star to the north.

Ambience: By now the increasing smoke caused sky glow and the pungent fumes of incineration are around me. The once verdant lawn is parched; nature is silent and I cannot help but brood on humans and wild-life desperately fleeing the encroaching fires. This time there is a menacing force abroad to match the wanton destruction of 
humankind. However, I take comfort in the knowledge that six months from now new shoots of grass and succulent gum trees will reach up from the ashes to feed again the surviving creatures of the bush. We have not had rain here for six weeks.
 
 

 

 
William Schart
Star: BU 19 in Canis Majoris
Date & Time: 21, January, 2002
From 10:00 pm CST.
Seeing: ~ 6 <1-10 Seeing Scale (10 best)>
Location of site: Killeen, TX, USA.
Site classification: Suburban
Sky darkness:  <Limiting magnitude>
Temperature: ~ 50ºF
Telescope: Celestar 8" SCT
Magnification: 80x, 120x and 200x 

 

 At low and mid power this was elongated, barely split at high power.
 

 

 
 
 
Stuart Clough
Star: BU 19 in Canis Majoris
Date & Time: 24.01.02 2200 - 2305UT
Seeing: 6+ <1-10 Seeing Scale (10 best)>
Location of site: Huddersfield A.S. Observatory
Lat 53° 37' 20". Long 01° 50'  25"W.
Site classification: Moorland.
Sky light polluted to East & North. 
Sky darkness: 4.2 (U Mi) <Limiting magnitude>
Temperature: -2º C
Conditions: Cloudless sky. Wind - 2 to 5 kts NNW.
Telescope: Orion Optics UK GX250 10"  f4.8
Mount: Vixen GP
Eyepieces:   20 mm Plossl, 9mm Ortho. Celestron Ultima x2 Barlow
Magnification: x60, x133, x267
   		 Easy to find from Sirius, this star proved more difficult to split than expected. In the end I used x267 to confirm an apparent split in the moments of better seeing at x133. At the higher power the image was not good though and was probably about the maximum useable in the conditions. No colour was apparent.