Baton Rouge Astronomical Society Forum

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PostPosted: May 22nd, 2014, 10:01 pm 
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Joined: October 12th, 2009, 3:28 pm
Posts: 4127
Location: Baton Rouge, LA
The Elephant Trunk Nebula is 2450 light-years away in the constellation Cepheus. The nebula lies 1˚24' SSW of the M-class, magnitude 4.2 star Erakis. I'm far from an expert at reading Burnham's abbreviations, but the summary reads something like "elongated, faint, extremely large nebulosity, 135' x 165', surrounds O-type double star Struve 2816".

The Elephant Trunk suprises some people as it is not too well-known yet has a brighter listed intrisic magnitude than the Orion Nebula. A picture of the Elephant Trunk from Eric Coles is slide number two in the collaborative gallery from Time Magazine and the Astronomical League.

Below are the times during which IC 1396 reaches its highest Baton Rouge altitude of sixty-three degrees.
26 June = 4:26am
30 June = 4:10am
4 July = 3:55am
8 July = 3:39am
12 July = 3:23am
16 July = 3:07am
20 July = 2:52am
24 July = 2:36am
28 July = 2:20am
1 August = 2:05am
5 August = 1:49am
9 August = 1:33am
13 August = 1:17am
17 August = 1:02am
21 August = 12:46am
25 August = 12:30am
29 August = 12:14am
2 September = 11:55pm
6 September = 11:39pm
10 September = 11:23pm
14 September = 11:08pm
18 September = 10:52pm
22 September = 10:36pm
26 September = 10:20pm
30 September = 10:05pm
4 October = 9:49pm
8 October = 9:33pm
12 October = 9:18pm
16 October = 9:02pm
20 October = 8:46pm
24 October = 8:30pm
28 October = 8:15pm
1 November = 7:59pm
Times above are Daylight. Time below is Standard.
5 November = 6:43pm

More information:
http://www.daviddarling.info/encyclopedia/E/Elephants_Trunk_Nebula.html
Celestial Handbook by Robert Burnham, p. 580.


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