PostHeaderIcon Comet ISON from Seattle

Ready to view Comet ISON? Here’s useful rise, set, and estimated magnitude for viewing from Seattle between now and March. I’ve color-coded it according to east of viewing. Magnitude (brightness) will change as we get more observations of ISON and see how it is responding to the Sun.

This is a useful table if you know what visual magnitude is. If you don’t, just go out too look for it on days that are highlighted yellow. Also, check out the “Special circumstances” for great viewing opportunities.

In this, I’m assuming a generic pair of binoculars can see down to about magnitude 10, and have a 5-7 degree field of view. Your binoculars may be different, but if you pull out a random pair that’s in your closet these assumptions probably aren’t that far off.

Local Date Sun Sun C/2012 S1 (ISON) C/2012 S1 (ISON) C/2012 S1 (ISON) How should you see it? Special circumstances
Rise Time Set Time Rise Time Set Time Visual Magnitude
9/4/2013 6:32 19:44 3:16 18:48 11.9 Telescope
9/4/2013 6:32 19:44 3:16 18:48 11.9 Telescope
9/5/2013 6:34 19:42 3:14 18:45 11.8 Telescope
9/6/2013 6:35 19:40 3:12 18:42 11.8 Telescope
9/7/2013 6:36 19:38 3:10 18:39 11.7 Telescope
9/8/2013 6:38 19:36 3:09 18:36 11.7 Telescope
9/9/2013 6:39 19:34 3:07 18:33 11.6 Telescope
9/10/2013 6:40 19:31 3:06 18:29 11.6 Telescope
9/11/2013 6:42 19:29 3:04 18:26 11.5 Telescope
9/12/2013 6:43 19:27 3:03 18:23 11.5 Telescope
9/13/2013 6:44 19:25 3:01 18:20 11.4 Telescope
9/14/2013 6:46 19:23 3:00 18:17 11.4 Telescope
9/15/2013 6:47 19:21 2:58 18:14 11.3 Telescope
9/16/2013 6:48 19:19 2:57 18:11 11.3 Telescope
9/17/2013 6:50 19:17 2:55 18:08 11.2 Telescope
9/18/2013 6:51 19:15 2:54 18:05 11.2 Telescope
9/19/2013 6:52 19:13 2:53 18:02 11.1 Telescope
9/20/2013 6:54 19:11 2:51 17:59 11 Telescope
9/21/2013 6:55 19:09 2:50 17:56 11 Telescope
9/22/2013 6:56 19:07 2:49 17:53 10.9 Telescope
9/23/2013 6:58 19:05 2:48 17:50 10.9 Telescope About 2 degrees from Mars, about 1 degree from the asteroid Eros (take a photo with your telescope)
9/24/2013 6:59 19:03 2:47 17:48 10.8 Telescope Conjunction: about 2 degrees from Mars, about 1 degree from the asteroid Eros (take a photo with your telescope)
9/25/2013 7:00 19:01 2:46 17:45 10.7 Telescope About 2 degrees from Mars, about 1 degree from the asteroid Eros (take a photo with your telescope)
9/26/2013 7:02 18:59 2:45 17:42 10.7 Telescope
9/27/2013 7:03 18:57 2:44 17:39 10.6 Telescope
9/28/2013 7:05 18:55 2:43 17:36 10.5 Telescope
9/29/2013 7:06 18:53 2:42 17:33 10.5 Telescope
9/30/2013 7:07 18:51 2:41 17:30 10.4 Telescope
10/1/2013 7:09 18:49 2:40 17:27 10.3 Telescope
10/2/2013 7:10 18:47 2:40 17:24 10.3 Telescope
10/3/2013 7:11 18:45 2:39 17:22 10.2 Telescope
10/4/2013 7:13 18:43 2:38 17:19 10.1 Telescope
10/5/2013 7:14 18:41 2:38 17:16 10 Telescope
10/6/2013 7:16 18:39 2:37 17:13 10 Telescope
10/7/2013 7:17 18:37 2:37 17:10 9.9 Good binoculars
10/8/2013 7:18 18:35 2:37 17:08 9.8 Good binoculars
10/9/2013 7:20 18:33 2:37 17:05 9.7 Good binoculars
10/10/2013 7:21 18:31 2:37 17:02 9.6 Good binoculars
10/11/2013 7:23 18:29 2:37 16:59 9.6 Good binoculars
10/12/2013 7:24 18:27 2:37 16:57 9.5 Good binoculars
10/13/2013 7:26 18:25 2:37 16:54 9.4 Good binoculars About 1 degree from Mars, about 2 degrees from Regulus (all three fit within a binocular’s field of view)
10/14/2013 7:27 18:23 2:37 16:51 9.3 Good binoculars About 1 degree from Mars, about 2 degrees from Regulus (all three fit within a binocular’s field of view)
10/15/2013 7:28 18:21 2:38 16:49 9.2 Good binoculars Conjunction: about 1 degree from Mars, about 2 degrees from Regulus (all three fit within a binocular’s field of view)
10/16/2013 7:30 18:19 2:38 16:46 9.1 Good binoculars About 1 degree from Mars, about 2 degrees from Regulus (all three fit within a binocular’s field of view)
10/17/2013 7:31 18:18 2:39 16:44 9 Binoculars About 1 degree from Mars, about 2 degrees from Regulus (all three fit within a binocular’s field of view)
10/18/2013 7:33 18:16 2:40 16:41 8.9 Binoculars
10/19/2013 7:34 18:14 2:41 16:39 8.8 Binoculars
10/20/2013 7:36 18:12 2:42 16:36 8.7 Binoculars
10/21/2013 7:37 18:10 2:43 16:34 8.6 Binoculars
10/22/2013 7:39 18:09 2:44 16:31 8.5 Binoculars
10/23/2013 7:40 18:07 2:46 16:29 8.4 Binoculars
10/24/2013 7:42 18:05 2:48 16:27 8.3 Binoculars About 2 degrees from M95, M96, about 3 degrees from M105 (Beautiful photo opportunity, all four fit in a binocular’s field of view)
10/25/2013 7:43 18:03 2:50 16:24 8.2 Binoculars About 2 degrees from M95, M96, about 3 degrees from M105 (Beautiful photo opportunity, all four fit in a binocular’s field of view)
10/26/2013 7:45 18:02 2:52 16:22 8.1 Binoculars
10/27/2013 6:46 17:00 1:55 15:20 7.9 Binoculars Earliest morning rise time
10/28/2013 6:48 16:58 1:58 15:18 7.8 Binoculars
10/29/2013 6:49 16:57 2:01 15:16 7.7 Binoculars
10/30/2013 6:51 16:55 2:04 15:14 7.6 Binoculars
10/31/2013 6:52 16:54 2:08 15:12 7.4 Binoculars
11/1/2013 6:54 16:52 2:12 15:10 7.3 Binoculars
11/2/2013 6:55 16:50 2:16 15:09 7.2 Binoculars
11/3/2013 6:57 16:49 2:21 15:07 7 Binoculars
11/4/2013 6:58 16:47 2:26 15:06 6.9 Binoculars
11/5/2013 7:00 16:46 2:32 15:04 6.7 Binoculars
11/6/2013 7:01 16:45 2:38 15:03 6.6 Binoculars
11/7/2013 7:03 16:43 2:44 15:02 6.4 Binoculars About 4 degrees from asteroid Vesta (both fit in binocular field of view)
11/8/2013 7:04 16:42 2:51 15:01 6.2 Binoculars
11/9/2013 7:06 16:41 2:59 15:00 6.1 Binoculars
11/10/2013 7:07 16:39 3:07 14:59 5.9 Eyes in dark skies
11/11/2013 7:09 16:38 3:16 14:59 5.7 Eyes in dark skies
11/12/2013 7:10 16:37 3:26 14:59 5.5 Eyes in dark skies
11/13/2013 7:12 16:36 3:36 14:59 5.3 Eyes in dark skies
11/14/2013 7:13 16:34 3:47 14:59 5.1 Eyes in dark skies
11/15/2013 7:15 16:33 3:59 14:59 4.9 Eyes in Seattle
11/16/2013 7:16 16:32 4:12 15:00 4.7 Eyes in Seattle
11/17/2013 7:18 16:31 4:25 15:01 4.5 Eyes in Seattle About 1 degree from Spica — makes it easy to find ISON
11/18/2013 7:19 16:30 4:39 15:03 4.2 Eyes in Seattle About 1 degree from Spica — makes it easy to find ISON
11/19/2013 7:20 16:29 4:54 15:05 3.9 Eyes in Seattle
11/20/2013 7:22 16:28 5:10 15:08 3.6 Eyes in Seattle
11/21/2013 7:23 16:27 5:26 15:11 3.3 Eyes in Seattle
11/22/2013 7:25 16:26 5:43 15:15 2.9 Eyes in Seattle
11/23/2013 7:26 16:26 6:01 15:19 2.5 Eyes in Seattle
11/24/2013 7:27 16:25 6:19 15:25 2 Eyes in Seattle About 2 degrees from Comet Encke (estimated magnitude 5, at the edge of visibility in Seattle with just your eyes) — Great photo opportunity
11/25/2013 7:29 16:24 6:37 15:31 1.3 Eyes in Seattle
11/26/2013 7:30 16:23 6:56 15:40 0.2 Only up during daylight
11/27/2013 7:32 16:23 7:16 15:53 -1.8 Only up during daylight
11/28/2013 7:33 16:22 7:38 16:33 -4.8 Only up during daylight Perihelion (closest approach to the Sun)
11/29/2013 7:34 16:22 7:14 16:45 -0.7 Only up during daylight
11/30/2013 7:35 16:21 6:56 16:50 0.7 Only up during daylight
12/1/2013 7:37 16:21 6:40 16:54 1.5 Eyes in Seattle
12/2/2013 7:38 16:20 6:25 16:57 2 Eyes in Seattle Begins to be visible briefly after sunset/twilight as well as in the morning
12/3/2013 7:39 16:20 6:12 17:01 2.5 Eyes in Seattle
12/4/2013 7:40 16:20 5:58 17:04 2.8 Eyes in Seattle
12/5/2013 7:41 16:19 5:45 17:07 3.1 Eyes in Seattle
12/6/2013 7:42 16:19 5:33 17:11 3.3 Eyes in Seattle
12/7/2013 7:43 16:19 5:20 17:15 3.5 Eyes in Seattle
12/8/2013 7:44 16:19 5:07 17:19 3.7 Eyes in Seattle
12/9/2013 7:45 16:19 4:54 17:24 3.8 Eyes in Seattle
12/10/2013 7:46 16:19 4:41 17:29 4 Eyes in Seattle Visible in the evening as well as the morning
12/11/2013 7:47 16:19 4:28 17:35 4.1 Eyes in Seattle
12/12/2013 7:48 16:19 4:14 17:41 4.2 Eyes in Seattle
12/13/2013 7:49 16:19 3:59 17:48 4.3 Eyes in Seattle
12/14/2013 7:50 16:19 3:44 17:57 4.3 Eyes in Seattle
12/15/2013 7:51 16:19 3:28 18:06 4.4 Eyes in Seattle
12/16/2013 7:51 16:19 3:11 18:18 4.5 Eyes in Seattle
12/17/2013 7:52 16:20 2:53 18:31 4.6 Eyes in Seattle
12/18/2013 7:53 16:20 2:33 18:46 4.6 Eyes in Seattle
12/19/2013 7:53 16:20 2:10 19:05 4.7 Eyes in Seattle
12/20/2013 7:54 16:21 1:45 19:28 4.8 Eyes in Seattle
12/21/2013 7:54 16:21 1:15 19:59 4.8 Eyes in Seattle
12/22/2013 7:55 16:22 0:37 20:48 4.9 Eyes in Seattle About 5 degrees from M31 (photo opportunity)
12/23/2013 7:55 16:22 NoRis NoSet 5 Eyes in Seattle Becomes circumpolar (visible all night, also up all day though not visible then)
12/24/2013 7:56 16:23 CirPl CirPl 5 Eyes in Seattle
12/25/2013 7:56 16:24 CirPl CirPl 5.1 Eyes in dark skies
12/26/2013 7:56 16:24 CirPl CirPl 5.2 Eyes in dark skies
12/27/2013 7:57 16:25 CirPl CirPl 5.3 Eyes in dark skies
12/28/2013 7:57 16:26 CirPl CirPl 5.4 Eyes in dark skies
12/29/2013 7:57 16:27 CirPl CirPl 5.5 Eyes in dark skies
12/30/2013 7:57 16:28 CirPl CirPl 5.6 Eyes in dark skies
12/31/2013 7:57 16:29 CirPl CirPl 5.7 Eyes in dark skies
1/1/2014 7:57 16:30 CirPl CirPl 5.8 Eyes in dark skies
1/2/2014 7:57 16:31 CirPl CirPl 5.9 Eyes in dark skies
1/3/2014 7:57 16:32 CirPl CirPl 6 Eyes in dark skies
1/4/2014 7:57 16:33 CirPl CirPl 6.1 Binoculars
1/5/2014 7:57 16:34 CirPl CirPl 6.3 Binoculars
1/6/2014 7:56 16:35 CirPl CirPl 6.4 Binoculars About 3 degrees from Polaris (both fit in binocular field of view)
1/7/2014 7:56 16:36 CirPl CirPl 6.5 Binoculars
1/8/2014 7:56 16:37 CirPl CirPl 6.6 Binoculars
1/9/2014 7:55 16:38 CirPl CirPl 6.8 Binoculars
1/10/2014 7:55 16:40 CirPl CirPl 6.9 Binoculars
1/11/2014 7:55 16:41 CirPl CirPl 7 Binoculars
1/12/2014 7:54 16:42 CirPl CirPl 7.1 Binoculars
1/13/2014 7:54 16:44 CirPl CirPl 7.2 Binoculars
1/14/2014 7:53 16:45 CirPl CirPl 7.4 Binoculars
1/15/2014 7:52 16:46 CirPl CirPl 7.5 Binoculars
1/16/2014 7:52 16:48 CirPl CirPl 7.6 Binoculars
1/17/2014 7:51 16:49 CirPl CirPl 7.7 Binoculars
1/18/2014 7:50 16:50 CirPl CirPl 7.8 Binoculars
1/19/2014 7:49 16:52 CirPl CirPl 8 Binoculars
1/20/2014 7:48 16:53 CirPl CirPl 8.1 Binoculars
1/21/2014 7:48 16:55 CirPl CirPl 8.2 Binoculars
1/22/2014 7:47 16:56 CirPl CirPl 8.3 Binoculars
1/23/2014 7:46 16:58 CirPl CirPl 8.4 Binoculars
1/24/2014 7:45 16:59 CirPl CirPl 8.5 Binoculars
1/25/2014 7:44 17:01 CirPl CirPl 8.6 Binoculars
1/26/2014 7:43 17:02 CirPl CirPl 8.7 Binoculars
1/27/2014 7:41 17:04 CirPl CirPl 8.8 Binoculars
1/28/2014 7:40 17:05 CirPl CirPl 8.9 Binoculars
1/29/2014 7:39 17:07 CirPl CirPl 9 Good binoculars
1/30/2014 7:38 17:08 CirPl CirPl 9.1 Good binoculars
1/31/2014 7:37 17:10 CirPl CirPl 9.2 Good binoculars
2/1/2014 7:35 17:12 CirPl CirPl 9.2 Good binoculars
2/2/2014 7:34 17:13 CirPl CirPl 9.3 Good binoculars
2/3/2014 7:33 17:15 CirPl CirPl 9.4 Good binoculars
2/4/2014 7:31 17:16 CirPl CirPl 9.5 Good binoculars
2/5/2014 7:30 17:18 CirPl CirPl 9.6 Good binoculars
2/6/2014 7:28 17:19 CirPl CirPl 9.7 Good binoculars
2/7/2014 7:27 17:21 CirPl CirPl 9.8 Good binoculars
2/8/2014 7:26 17:23 CirPl CirPl 9.8 Good binoculars
2/9/2014 7:24 17:24 CirPl CirPl 9.9 Good binoculars
2/10/2014 7:22 17:26 CirPl CirPl 10 Good binoculars
2/11/2014 7:21 17:27 CirPl CirPl 10.1 Telescope
2/12/2014 7:19 17:29 CirPl CirPl 10.1 Telescope
2/13/2014 7:18 17:30 CirPl CirPl 10.2 Telescope
2/14/2014 7:16 17:32 CirPl CirPl 10.3 Telescope
2/15/2014 7:14 17:34 CirPl CirPl 10.3 Telescope
2/16/2014 7:13 17:35 CirPl CirPl 10.4 Telescope
2/17/2014 7:11 17:37 CirPl CirPl 10.5 Telescope
2/18/2014 7:09 17:38 CirPl CirPl 10.6 Telescope
2/19/2014 7:08 17:40 CirPl CirPl 10.6 Telescope
2/20/2014 7:06 17:41 CirPl CirPl 10.7 Telescope
2/21/2014 7:04 17:43 CirPl CirPl 10.8 Telescope
2/22/2014 7:02 17:44 CirPl CirPl 10.8 Telescope
2/23/2014 7:00 17:46 CirPl CirPl 10.9 Telescope
2/24/2014 6:59 17:47 CirPl CirPl 10.9 Telescope
2/25/2014 6:57 17:49 CirPl CirPl 11 Telescope
2/26/2014 6:55 17:50 CirPl CirPl 11.1 Telescope
2/27/2014 6:53 17:52 CirPl CirPl 11.1 Telescope
2/28/2014 6:51 17:54 CirPl CirPl 11.2 Telescope
3/1/2014 6:49 17:55 CirPl CirPl 11.3 Telescope
3/2/2014 7:47 18:57 CirPl CirPl 11.3 Telescope
3/3/2014 7:46 18:58 CirPl CirPl 11.4 Telescope
3/4/2014 7:44 19:00 CirPl CirPl 11.4 Telescope
3/5/2014 7:42 19:01 CirPl CirPl 11.5 Telescope
3/6/2014 7:40 19:02 CirPl CirPl 11.5 Telescope
3/7/2014 7:38 19:04 CirPl CirPl 11.6 Telescope
3/8/2014 7:36 19:05 CirPl CirPl 11.7 Telescope
3/9/2014 7:34 19:07 CirPl CirPl 11.7 Telescope
3/10/2014 7:32 19:08 CirPl CirPl 11.8 Telescope
3/11/2014 7:30 19:10 CirPl CirPl 11.8 Telescope
3/12/2014 7:28 19:11 CirPl CirPl 11.9 Telescope
3/13/2014 7:26 19:13 CirPl CirPl 11.9 Telescope
3/14/2014 7:24 19:14 CirPl CirPl 12 Telescope
3/15/2014 7:22 19:16 CirPl CirPl 12 Telescope
3/16/2014 7:20 19:17 CirPl CirPl 12.1 Telescope
3/17/2014 7:18 19:19 CirPl CirPl 12.1 Telescope
3/18/2014 7:16 19:20 CirPl CirPl 12.2 Telescope
3/19/2014 7:14 19:21 CirPl CirPl 12.2 Telescope
3/20/2014 7:12 19:23 CirPl CirPl 12.2 Telescope
3/21/2014 7:10 19:24 CirPl CirPl 12.3 Telescope

Yay!

This chart was created for viewing in Seattle by Jason Enevoldsen using XEphem and ephemeris data from NASA JPL.

~ A l i c e !

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