Welcome to the NavList Message Boards.

NavList:

A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Message:αβγ
Message:abc
Add Images & Files
    or...
       
    Reply
    Re: Could I have seen Zubenelgenubi in morning twilight with x10 binoculars?
    From: Greg Rudzinski
    Date: 2017 Dec 17, 07:44 -0800

    Dave,

    It is safe to say that you have spotted Zubenelgenubi and can check it off your list.  The give away is that Zubenelgenubi is a binary star (period 5870 years) and the pair can be seen through 7x50 binoculars with no trouble. Even my poorly taken 200mm telephoto snap shows the binary pair. The internet image shows better but is probably an animation. Using a x4 scope on a Plath had Zubenelgenubi visible 15 minutes into nautical twilight (0613 PST at 34N 119W). 

    Greg Rudzinski



    File:



    File:



       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Join NavList

    Name:
    (please, no nicknames or handles)
    Email:
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.
    Email:

    Email Settings

    Posting Code:

    Custom Index

    Subject:
    Author:
    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site