Author Topic: 24 May Pinnacles, caught that supernova  (Read 201 times)

DDK

  • Moderator
  • Observer
  • *****
  • Posts: 343
    • View Profile
24 May Pinnacles, caught that supernova
« on: June 20, 2017, 09:49:37 PM »
Just want to log that I did get to see the supernova in ngc 6946, sn2017eaw.
Partly to thank Steve Gottlieb for the timely prompt. And partly to go about the wonder of seeing a supernova. This one was showing at about 13.0 magnitude, so not hard to see in a medium-sized scope.

This was from the Pinnacles with Johannes, my 13" Albert Highe-built grab and go scope. Was a nice night, limiting magnitude 6.2, seeing good 4/5. Now here's this thing showing as bright in the scope as several of the foreground stars, which would be in our arm of the Milky Way, a few hundred lightyears away. 6946 is 15 million lightyears away, at least 20,000 times more distant. Throw in the inverse-square law, and you get the idea that one of these things really puts out as much energy as its whole host galaxy.

6946 is a mondo face-on galaxy, always worth the trip, along with its neighbor, 6939, a bright spangly open cluster, some 4,000 lightyears away, just for comparison.

That night I got to see Omega Centauri well above the horizon. It was vast, imposing and overwhelming in the 9mm at 165x.
Also took a downtown Virgo tour. And Jupiter was fancy, with 2 brown barges in the NEB, and a sharp fat GRS with round distince edges.
Had the coyotes and the crickets for company. Good sound field.
TAC - astro anarchy at work <*>