[BAA Comets] 154P/Brewington

Andrew Robertson alphacentauri at tesco.net
Wed Nov 20 22:04:18 GMT 2013


Further to below, I really struggled to see it in the 12" Dall-Kirkham this
evening to the point that I now doubt my sighting last night with the 5"
Mak-Cass. The other side of the coin is that the skies tonight were
dreadful, really damp and milky such that LM was only 4.5 - 5 at absolute
best, although no moon in the way. Spent from 1730 hrs to 1815 hrs on it
changing e/p's etc. Kept switching between 40mm Pentax (x90) and 27mm
Panoptic (x135). A 20mm (x180) was of no use. There were only 2 or 3 times I
was confident I could see something in the centre. So, not an easy object
visually at present.

Andrew 

-----Original Message-----
From: Andrew Robertson [mailto:alphacentauri at tesco.net] 
Sent: 19 November 2013 20:17
To: BAA Comets discussion list
Subject: 154P/Brewington

Well chaps, contrary to the forecast it was clear when I looked out at 6pm
and with the moon having risen only half an hour earlier it was still
relatively dark. So out with the 15 x 70 bins to see if I could see
Brewington. Momentarily I thought I could see it but then realised I was
mistaken. Not much time with that moon getting higher and brighter so I set
my Intes 127mm Mak-Cass up on the rear patio on an alt-az mount. I was
confident I'd identified where it should be but with a 32mm e/p giving x40 -
nothing. A 22mm panoptic giving x58 and still negative except a couple of
times I thought I saw something at the same location. 15mm Panoptic giving
x85 to darken the sky more but fighting a losing battle as that moon was
getting higher (6.45pm now), then moving the scope around the area I
detected a faint glow extreme averted vision. Moving the scope around I kept
coming to the same position. Whilst not consistent - I was probably getting
it less than 50% of the time I was confident I was picking up an extended
(not a faint star) glow with AV. Well pleased, soon afterwards the moon got
brighter and cloud came in. Must have another go soon with less moon and
more aperture.

Andrew



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