NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Mercury visible after sunset
From: Peter Hakel
Date: 2015 Jan 16, 13:55 +0000
From: Peter Hakel <NoReply_PeterHakel@fer3.com>
To: pmh099@yahoo.com
Sent: Thursday, January 15, 2015 6:56 PM
Subject: [NavList] Mercury visible after sunset
From: Peter Hakel
Date: 2015 Jan 16, 13:55 +0000
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Peter Hakel
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From: Peter Hakel <NoReply_PeterHakel@fer3.com>
To: pmh099@yahoo.com
Sent: Thursday, January 15, 2015 6:56 PM
Subject: [NavList] Mercury visible after sunset
These days Mercury is visible in the evening sky just northwest of Venus. Its horizontal parallax is twice that of Venus, so current Earth-Venus distance is about twice the current Earth-Mercury distance. A pretty picture lifted from the Web seems to agree :-) Apparent semidiameters are about the same (to one displayed decimal place, which goes with their (VERY roughly) 2:1 actual radius ratio.
2015 Nautical Almanac Commercial Edition mentions the two planets in its DO NOT CONFUSE paragraph on p. 8; Venus is the brighter object.
Peter Hakel
2015 Nautical Almanac Commercial Edition mentions the two planets in its DO NOT CONFUSE paragraph on p. 8; Venus is the brighter object.
Peter Hakel
