Comet Swan brightened to magnitude +4.5, that's naked eye visability in dark areas 
If you're out trick-or-treating tonight, or whenever it is in your area, take along a pair of binoculars.
Quick locator map for tonight
Info from SpaceWeather
If you want to see where the comet will be over the next seveal weeks, check out this online planitarium.
Your Sky
Fill in your location or nearest city, time & view, & cut/paste the following Orbital Elements for Comet Swan.
If you're out trick-or-treating tonight, or whenever it is in your area, take along a pair of binoculars.
Quick locator map for tonight
Info from SpaceWeather
COMET OUTBURST: Astronomers report that Comet Swan has suddenly increased in brightness 4-fold, from magnitude +6 to +4.5. This makes it a naked-eye object in dark skies and a lovely sight through backyard telescopes. The cause of the outburst: A new vein of volatile ice may have opened up in the comet's nucleus. Solar heating transforms this freshly-exposed material into streams of bright, reflective gas and dust. Indeed, backyard telescopes seem to show new tendrils of gaseous material in the comet's long tail.
If you want to see where the comet will be over the next seveal weeks, check out this online planitarium.
Your Sky
Fill in your location or nearest city, time & view, & cut/paste the following Orbital Elements for Comet Swan.
C/2006 M4 (SWAN)
Epoch 2006 Sept. 22.0 TT = JDT 2454000.5
T 2006 Sept. 28.7283 TT MPC
q 0.783022 (2000.0) P Q
z -0.000302 Peri. 62.5930 -0.2221106 +0.8475967
+/-0.000032 Node 148.7267 +0.1501991 -0.4586221
e 1.000236 Incl. 111.8227 +0.9633832 +0.2669185
