Thread: SN Alert!!!
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Old 29-03-2012, 07:27 PM
astrospotter (Mark)
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Join Date: Jan 2010
Location: San Jose, CA, USA
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Sure is a nice SN

Here is my observation from last Thursday in a 12" dob and it has been raining before that and ever since ... glad I got out once anyway.

M95 supernova at 10pm PDT tonight (from mid California, USA), 3-22-2012, was quite obvious in a 12" f/5 dob just south of the core of M95 by around 2.4' or almost the same spacing and the mag 9.9 and mag 11.7 stars just west of M95 by 1/3fov [about 7']. Viewed at 218x with 7mmNagler mostly.

Looking around for a mag estimate star I decided that just east of the
mag 11 star that is 1/2fov [11'] NW of the core of M95 [GSC 849:167]
was a much dimmer star going by GSC849:195 that was very close in mag to the supernova where mag was judged using a 5mm Nagler (300x). That puts the supernova near mag 13.3 at 10pm PDT.

The night did not support 300x but it was easier to judge the mag with the 300x. I judged the mag 12.6 star 1/2 fov WNW of M95 to be a touch brighter [GSC 849:119]. The sky was not very dark [did not have SQM meter] but NELM was just a bit better than 5.4 from this rather light sight close to home with that area near city sky glow. With the same 7mm eyepiece used for most of the M95 observation my galaxy limiting mag I determined using Ngc4458 which is around a mag 12 galaxy in Markarian chain (a favorite area)but not stellar in my view tonight.
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